diff options
Diffstat (limited to 'hyperstack.rb')
| -rwxr-xr-x | hyperstack.rb | 3307 |
1 files changed, 9 insertions, 3298 deletions
diff --git a/hyperstack.rb b/hyperstack.rb index 5065fd1..abf0221 100755 --- a/hyperstack.rb +++ b/hyperstack.rb @@ -27,3306 +27,17 @@ end module HyperstackVM class Error < StandardError; end - - class ConfigLoader - attr_reader :path - - def self.load(path) - expanded = File.expand_path(path) - raise Error, "Config file not found: #{expanded}" unless File.exist?(expanded) - - raw = TomlRB.load_file(expanded) - new(raw, expanded) - rescue TomlRB::ParseError => e - raise Error, "Failed to parse TOML config #{expanded}: #{e.message}" - end - - def initialize(raw, path) - @path = path - @data = deep_merge(DEFAULTS, raw || {}) - validate! - end - - def config - Config.new(@data, @path) - end - - private - - DEFAULTS = { - 'auth' => { - 'api_key_file' => '~/.hyperstack' - }, - 'hyperstack' => { - 'base_url' => 'https://infrahub-api.nexgencloud.com/v1' - }, - 'state' => { - 'file' => '.hyperstack-vm-state.json' - }, - 'vm' => { - 'name_prefix' => 'hyperstack', - 'hostname' => 'hyperstack', - 'flavor_name' => 'n3-A100x1', - 'image_name' => 'Ubuntu Server 24.04 LTS R570 CUDA 12.8 with Docker', - 'assign_floating_ip' => true, - 'create_bootable_volume' => false, - 'enable_port_randomization' => false, - 'labels' => %w[gpt-oss-120b wireguard] - }, - 'ssh' => { - 'username' => 'ubuntu', - 'private_key_path' => '~/.ssh/id_rsa', - 'hyperstack_key_name' => 'earth', - 'port' => 22, - 'connect_timeout_sec' => 10 - }, - 'network' => { - 'wireguard_udp_port' => 56_710, - 'wireguard_subnet' => '192.168.3.0/24', - # Optional: explicit server-side WireGuard IP. When nil, derived as subnet + 1 (i.e. .1). - # Set to a different address (e.g. 192.168.3.3) for a second VM sharing the same wg1 tunnel. - 'wireguard_server_ip' => nil, - 'ollama_port' => 11_434, - 'allowed_ssh_cidrs' => ['auto'], - 'allowed_wireguard_cidrs' => ['auto'] - }, - 'bootstrap' => { - 'enable_guest_bootstrap' => true, - 'install_wireguard' => true, - 'configure_ufw' => true, - 'configure_ollama_host' => false - }, - 'ollama' => { - 'install' => false, - 'models_dir' => '/ephemeral/ollama/models', - 'listen_host' => '0.0.0.0:11434', - 'gpu_overhead_mb' => 2000, - 'num_parallel' => 1, - 'context_length' => 32_768, - 'pull_models' => ['qwen3-coder:30b', 'gpt-oss:20b', 'gpt-oss:120b', 'nemotron-3-super'] - }, - 'vllm' => { - 'install' => true, - 'model' => 'bullpoint/Qwen3-Coder-Next-AWQ-4bit', - 'hug_cache_dir' => '/ephemeral/hug', - 'container_name' => 'vllm_qwen3', - 'max_model_len' => 262_144, - 'gpu_memory_utilization' => 0.92, - 'tensor_parallel_size' => 1, - 'tool_call_parser' => 'qwen3_coder' - }, - 'comfyui' => { - 'install' => false, - 'port' => 8188, - 'models_dir' => '/ephemeral/comfyui/models', - 'output_dir' => '/ephemeral/comfyui/output', - 'container_name' => 'comfyui', - # Models to pre-download: Real-ESRGAN for fast upscaling, SUPIR for deep restoration. - 'models' => [] - }, - 'wireguard' => { - 'auto_setup' => true, - 'setup_script' => './wg1-setup.sh' - }, - 'local_client' => { - 'check_wg1_service' => true, - 'interface_name' => 'wg1', - 'config_path' => '/etc/wireguard/wg1.conf' - } - }.freeze - - def validate! - %w[auth hyperstack state vm ssh network bootstrap ollama vllm comfyui wireguard local_client].each do |section| - raise Error, "Missing config section [#{section}]" unless @data.key?(section) - end - - %w[environment_name flavor_name image_name].each do |key| - raise Error, "Missing [vm].#{key} in config #{path}" if blank?(dig('vm', key)) - end - - if fetch('vm', 'hostname') && fetch('vm', 'hostname') !~ /\A[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?\z/ - raise Error, - "Invalid [vm].hostname #{fetch('vm', - 'hostname').inspect}; use lowercase letters, digits, and hyphens only." - end - - %w[username hyperstack_key_name].each do |key| - raise Error, "Missing [ssh].#{key} in config #{path}" if blank?(dig('ssh', key)) - end - - ssh_cidrs = normalized_cidrs(fetch('network', 'allowed_ssh_cidrs')) - wireguard_cidrs = normalized_cidrs(fetch('network', 'allowed_wireguard_cidrs')) - - raise Error, missing_cidr_message('allowed_ssh_cidrs') if ssh_cidrs.empty? - raise Error, missing_cidr_message('allowed_wireguard_cidrs') if wireguard_cidrs.empty? - - [fetch('network', 'wireguard_subnet'), *ssh_cidrs, *wireguard_cidrs].each do |cidr| - next if cidr == 'auto' - - IPAddr.new(cidr) - rescue IPAddr::InvalidAddressError => e - raise Error, "Invalid CIDR #{cidr.inspect}: #{e.message}" - end - - server_ip = fetch('network', 'wireguard_server_ip') - return unless server_ip - - # Validate that the explicit server WireGuard IP is within the configured subnet. - begin - subnet = IPAddr.new(fetch('network', 'wireguard_subnet')) - unless subnet.include?(IPAddr.new(server_ip)) - raise Error, - "wireguard_server_ip #{server_ip.inspect} is not in wireguard_subnet #{fetch('network', - 'wireguard_subnet')}" - end - rescue IPAddr::InvalidAddressError => e - raise Error, "Invalid wireguard_server_ip #{server_ip.inspect}: #{e.message}" - end - end - - def fetch(section, key) - dig(section, key) - end - - def dig(*keys) - keys.reduce(@data) do |memo, key| - memo.is_a?(Hash) ? memo[key] : nil - end - end - - def blank?(value) - value.nil? || value.to_s.strip.empty? - end - - def truthy?(value) - value == true - end - - def normalized_cidrs(values) - Array(values).map { |value| value.to_s.strip }.reject(&:empty?) - end - - def missing_cidr_message(key) - "Missing [network].#{key} in config #{path}; set it to one or more CIDRs, or ['auto'] to restrict access to the current public operator IP." - end - - def deep_merge(left, right) - left.merge(right) do |_key, old_value, new_value| - if old_value.is_a?(Hash) && new_value.is_a?(Hash) - deep_merge(old_value, new_value) - else - new_value - end - end - end - end - - class Config - attr_reader :path - - def initialize(data, path = nil) - @data = data - @path = path - end - - def api_key - key_path = expand_path(fetch('auth', 'api_key_file')) - raise Error, "API key file not found: #{key_path}" unless File.exist?(key_path) - - token = File.readlines(key_path, chomp: true).find { |line| !line.strip.empty? }&.strip - raise Error, "API key file is empty: #{key_path}" if token.nil? || token.empty? - - token - rescue Errno::EACCES => e - raise Error, "Cannot read API key file #{key_path}: #{e.message}" - end - - def api_base_url - fetch('hyperstack', 'base_url') - end - - def state_file - expand_path(fetch('state', 'file')) - end - - def environment_name - fetch('vm', 'environment_name') - end - - def flavor_name - fetch('vm', 'flavor_name') - end - - def image_name - fetch('vm', 'image_name') - end - - def vm_name_prefix - fetch('vm', 'name_prefix') - end - - def generated_vm_name - "#{vm_name_prefix}-#{Time.now.utc.strftime('%Y%m%d%H%M%S')}" - end - - def vm_hostname - value = fetch('vm', 'hostname') - return nil if blank?(value) - - value.to_s.downcase - end - - def assign_floating_ip? - truthy?(fetch('vm', 'assign_floating_ip')) - end - - def create_bootable_volume? - truthy?(fetch('vm', 'create_bootable_volume')) - end - - def enable_port_randomization? - truthy?(fetch('vm', 'enable_port_randomization')) - end - - def labels - Array(fetch('vm', 'labels')).map(&:to_s) - end - - def user_data - custom = custom_user_data - return custom unless custom.nil? || custom.empty? - return nil if vm_hostname.nil? - - default_hostname_cloud_init - rescue Errno::ENOENT => e - raise Error, "User data file not found: #{e.message}" - rescue Errno::EACCES => e - raise Error, "Cannot read user data file: #{e.message}" - end - - def ssh_username - fetch('ssh', 'username') - end - - def ssh_private_key_path - expand_path(fetch('ssh', 'private_key_path')) - end - - def ssh_known_hosts_path - "#{state_file}.known_hosts" - end - - def ssh_key_name - fetch('ssh', 'hyperstack_key_name') - end - - def ssh_port - Integer(fetch('ssh', 'port')) - end - - def ssh_connect_timeout - Integer(fetch('ssh', 'connect_timeout_sec')) - end - - def wireguard_udp_port - Integer(fetch('network', 'wireguard_udp_port')) - end - - def wireguard_subnet - fetch('network', 'wireguard_subnet') - end - - def ollama_port - Integer(fetch('network', 'ollama_port')) - end - - # Returns the server-side WireGuard IP for this VM. - # Uses the explicitly configured address when set; otherwise derives it as subnet_base + 1. - # Example: 192.168.3.0/24 → 192.168.3.1 (default VM1); VM2 sets wireguard_server_ip=192.168.3.3. - def wireguard_gateway_ip - configured = fetch('network', 'wireguard_server_ip') - return configured.to_s if configured && !configured.to_s.strip.empty? - - # Fall back to first usable address in the subnet. - base = IPAddr.new(wireguard_subnet).to_s - parts = base.split('.').map(&:to_i) - parts[-1] += 1 - parts.join('.') - end - - # Returns the WireGuard hostname for this VM: e.g. hyperstack1.wg1 or hyperstack2.wg1. - # Used as the DNS name to reach the VM over the tunnel (must be in /etc/hosts on the client). - def wireguard_gateway_hostname - host = vm_hostname || 'hyperstack' - "#{host}.#{local_interface_name}" - end - - def allowed_ssh_cidrs - resolved_allowed_cidrs('allowed_ssh_cidrs') - end - - def allowed_wireguard_cidrs - resolved_allowed_cidrs('allowed_wireguard_cidrs') - end - - def guest_bootstrap_enabled? - truthy?(fetch('bootstrap', 'enable_guest_bootstrap')) - end - - def install_wireguard? - truthy?(fetch('bootstrap', 'install_wireguard')) - end - - def configure_ufw? - truthy?(fetch('bootstrap', 'configure_ufw')) - end - - def configure_ollama_host? - truthy?(fetch('bootstrap', 'configure_ollama_host')) - end - - def ollama_install_enabled? - truthy?(fetch('ollama', 'install')) - end - - def ollama_models_dir - fetch('ollama', 'models_dir') - end - - def ollama_listen_host - fetch('ollama', 'listen_host') - end - - def ollama_gpu_overhead_mb - Integer(fetch('ollama', 'gpu_overhead_mb')) - end - - def ollama_num_parallel - Integer(fetch('ollama', 'num_parallel')) - end - - def ollama_context_length - Integer(fetch('ollama', 'context_length')) - end - - def ollama_pull_models - Array(fetch('ollama', 'pull_models')).map(&:to_s) - end - - def vllm_install_enabled? - truthy?(fetch('vllm', 'install')) - end - - def vllm_model - fetch('vllm', 'model') - end - - def vllm_hug_cache_dir - fetch('vllm', 'hug_cache_dir') - end - - # Derived from hug_cache_dir: sibling directory for torch.compile artifacts. - # Persisted across container restarts so recompilation is skipped on warm switches. - def vllm_compile_cache_dir - File.join(File.dirname(fetch('vllm', 'hug_cache_dir')), 'vllm_cache') - end - - def vllm_container_name - fetch('vllm', 'container_name') - end - - def vllm_max_model_len - Integer(fetch('vllm', 'max_model_len')) - end - - def vllm_gpu_memory_utilization - Float(fetch('vllm', 'gpu_memory_utilization')) - end - - def vllm_tensor_parallel_size - Integer(fetch('vllm', 'tensor_parallel_size')) - end - - def vllm_tool_call_parser - fetch('vllm', 'tool_call_parser') - end - - # Whether to pass --trust-remote-code to vLLM for the default model. - # Required for architectures not yet in the vLLM upstream registry (e.g. nemotron_h). - def vllm_trust_remote_code - truthy?(fetch('vllm', 'trust_remote_code')) - end - - # Extra vLLM CLI flags for the default model (e.g. reasoning-parser args). - def vllm_extra_args - Array(fetch('vllm', 'extra_vllm_args')).map(&:to_s) - end - - # Extra Docker -e KEY=VALUE env vars for the vLLM container (e.g. VLLM_ALLOW_LONG_MAX_MODEL_LEN=1). - def vllm_extra_docker_env - Array(fetch('vllm', 'extra_docker_env')).map(&:to_s) - end - - # Whether to pass --enable-prefix-caching to vLLM. Defaults to true. - # Disable for hybrid Mamba models (NemotronH): prefix caching forces Mamba into "all" cache - # mode which pre-allocates states for all sequences, consuming extra VRAM on startup. - def vllm_prefix_caching_enabled? - val = dig('vllm', 'enable_prefix_caching') - val.nil? || truthy?(val) - end - - def vllm_presets - Hash(dig('vllm', 'presets')).transform_keys(&:to_s) - end - - def vllm_preset_names - vllm_presets.keys - end - - def vllm_preset(name) - raw = vllm_presets[name.to_s] - unless raw - available = vllm_preset_names.empty? ? 'none configured' : vllm_preset_names.join(', ') - raise Error, "Unknown vLLM preset #{name.inspect}. Available: #{available}" - end - { - 'model' => raw['model'] || vllm_model, - 'container_name' => raw['container_name'] || vllm_container_name, - 'max_model_len' => Integer(raw['max_model_len'] || vllm_max_model_len), - 'gpu_memory_utilization' => Float(raw['gpu_memory_utilization'] || vllm_gpu_memory_utilization), - 'tensor_parallel_size' => Integer(raw['tensor_parallel_size'] || vllm_tensor_parallel_size), - 'tool_call_parser' => raw.key?('tool_call_parser') ? raw['tool_call_parser'] : vllm_tool_call_parser, - 'trust_remote_code' => raw.key?('trust_remote_code') ? raw['trust_remote_code'] : false, - 'extra_vllm_args' => raw.key?('extra_vllm_args') ? Array(raw['extra_vllm_args']) : [], - 'extra_docker_env' => raw.key?('extra_docker_env') ? Array(raw['extra_docker_env']) : [], - # nil means "not set in preset" — fall back to the top-level [vllm] value in the script. - 'enable_prefix_caching' => raw.key?('enable_prefix_caching') ? raw['enable_prefix_caching'] : nil - } - end - - def comfyui_install_enabled? - truthy?(fetch('comfyui', 'install')) - end - - def comfyui_port - Integer(fetch('comfyui', 'port')) - end - - def comfyui_models_dir - fetch('comfyui', 'models_dir') - end - - def comfyui_output_dir - fetch('comfyui', 'output_dir') - end - - def comfyui_container_name - fetch('comfyui', 'container_name') - end - - # Models to pre-download during provisioning (e.g. RealESRGAN_x4plus, SUPIR-v0Q). - def comfyui_models - Array(fetch('comfyui', 'models')).map(&:to_s) - end - - def local_client_checks_enabled? - truthy?(fetch('local_client', 'check_wg1_service')) - end - - def local_interface_name - fetch('local_client', 'interface_name') - end - - def local_wg_config_path - fetch('local_client', 'config_path') - end - - def wireguard_auto_setup? - truthy?(fetch('wireguard', 'auto_setup')) - end - - def wireguard_setup_script - expand_path(fetch('wireguard', 'setup_script')) - end - - def desired_security_rules(include_ollama: ollama_install_enabled?, include_vllm: vllm_install_enabled?, - include_comfyui: comfyui_install_enabled?) - rules = [] - - allowed_ssh_cidrs.each do |cidr| - rules << firewall_rule('tcp', ssh_port, cidr) - end - - allowed_wireguard_cidrs.each do |cidr| - rules << firewall_rule('udp', wireguard_udp_port, cidr) - end - - rules << firewall_rule('tcp', ollama_port, wireguard_subnet) if include_ollama || include_vllm - # ComfyUI REST API on its own port, restricted to the WireGuard subnet. - rules << firewall_rule('tcp', comfyui_port, wireguard_subnet) if include_comfyui - rules.uniq - end - - private - - def fetch(section, key) - dig(section, key) - end - - def dig(*keys) - keys.reduce(@data) do |memo, key| - memo.is_a?(Hash) ? memo[key] : nil - end - end - - def blank?(value) - value.nil? || value.to_s.strip.empty? - end - - def truthy?(value) - value == true - end - - def resolved_allowed_cidrs(key) - values = Array(fetch('network', key)).map { |value| value.to_s.strip }.reject(&:empty?) - values.flat_map { |value| value == 'auto' ? [detected_operator_cidr] : [value] }.uniq - end - - def detected_operator_cidr - return @detected_operator_cidr if defined?(@detected_operator_cidr) - - configured = ENV['HYPERSTACK_OPERATOR_CIDR'].to_s.strip - @detected_operator_cidr = normalize_operator_cidr(configured) unless configured.empty? - return @detected_operator_cidr if defined?(@detected_operator_cidr) - - @detected_operator_cidr = detect_public_operator_cidr - end - - def normalize_operator_cidr(value) - ip = IPAddr.new(value) - suffix = ip.ipv4? ? 32 : 128 - value.include?('/') ? value : "#{ip}/#{suffix}" - rescue IPAddr::InvalidAddressError => e - raise Error, "Invalid HYPERSTACK_OPERATOR_CIDR #{value.inspect}: #{e.message}" - end - - def detect_public_operator_cidr - [ - 'https://api.ipify.org', - 'https://ifconfig.me/ip', - 'https://ipv4.icanhazip.com' - ].each do |url| - cidr = fetch_public_cidr(url) - return cidr if cidr - end - - source = path || 'the active config' - raise Error, - "Unable to detect the current public operator IP for [network].allowed_*_cidrs = ['auto']. Set HYPERSTACK_OPERATOR_CIDR or replace 'auto' with explicit CIDRs in #{source}." - end - - def fetch_public_cidr(url) - uri = URI(url) - response = Net::HTTP.start(uri.host, uri.port, use_ssl: uri.scheme == 'https', open_timeout: 5, - read_timeout: 5) do |http| - http.request(Net::HTTP::Get.new(uri)) - end - return nil unless response.is_a?(Net::HTTPSuccess) - - body = response.body.to_s.strip - return nil if body.empty? - - ip = IPAddr.new(body) - suffix = ip.ipv4? ? 32 : 128 - "#{ip}/#{suffix}" - rescue IPAddr::InvalidAddressError, SocketError, SystemCallError, Timeout::Error, Net::OpenTimeout, - Net::ReadTimeout, OpenSSL::SSL::SSLError - nil - end - - def custom_user_data - inline = dig('vm', 'user_data') - return inline unless inline.nil? || inline.empty? - - file = dig('vm', 'user_data_file') - return nil if file.nil? || file.empty? - - File.read(expand_path(file)) - end - - def default_hostname_cloud_init - <<~CLOUD_INIT - #cloud-config - preserve_hostname: false - hostname: #{vm_hostname} - CLOUD_INIT - end - - def expand_path(value) - return nil if value.nil? - - string = value.to_s - return File.expand_path(string) if string.start_with?('~') - return string if string.start_with?('/') - - File.expand_path(string, File.dirname(@path)) if @path - end - - def firewall_rule(protocol, port, cidr) - ip = IPAddr.new(cidr) - { - 'direction' => 'ingress', - 'ethertype' => ip.ipv4? ? 'IPv4' : 'IPv6', - 'protocol' => protocol, - 'port_range_min' => port, - 'port_range_max' => port, - 'remote_ip_prefix' => cidr - } - end - end - - class StateStore - def initialize(path) - @path = path - end - - attr_reader :path - - def load - return nil unless File.exist?(@path) - - JSON.parse(File.read(@path)) - rescue JSON::ParserError => e - raise Error, "Failed to parse state file #{@path}: #{e.message}" - end - - def save(payload) - temp_path = "#{@path}.tmp" - File.write(temp_path, JSON.pretty_generate(payload)) - File.rename(temp_path, @path) - end - - def delete - File.delete(@path) if File.exist?(@path) - end - end - - class HyperstackClient - def initialize(base_url:, api_key:) - @base_uri = URI(base_url) - @api_key = api_key - end - - def list_environments - response = request(:get, '/core/environments') - response.fetch('environments', []) - end - - def list_keypairs - response = request(:get, '/core/keypairs') - response.fetch('keypairs', []) - end - - def list_flavors - response = request(:get, '/core/flavors') - Array(response['data']).flat_map do |entry| - Array(entry['flavors']).map do |flavor| - flavor.merge( - 'region_name' => flavor['region_name'] || entry['region_name'], - 'gpu' => flavor['gpu'] || entry['gpu'] - ) - end - end - end - - def list_images - response = request(:get, '/core/images') - Array(response['images']).flat_map do |entry| - Array(entry['images']).map do |image| - image.merge( - 'region_name' => image['region_name'] || entry['region_name'], - 'type' => image['type'] || entry['type'] - ) - end - end - end - - def list_vms - response = request(:get, '/core/virtual-machines') - response.fetch('instances', []) - end - - def get_vm(vm_id) - response = request(:get, "/core/virtual-machines/#{vm_id}") - response.fetch('instance', nil) - end - - def create_vm(payload) - request(:post, '/core/virtual-machines', payload) - end - - def delete_vm(vm_id) - request(:delete, "/core/virtual-machines/#{vm_id}") - end - - def create_vm_rule(vm_id, payload) - request(:post, "/core/virtual-machines/#{vm_id}/sg-rules", payload) - end - - def delete_vm_rule(vm_id, rule_id) - request(:delete, "/core/virtual-machines/#{vm_id}/sg-rules/#{rule_id}") - end - - private - - def request(method, path, payload = nil) - uri = @base_uri.dup - uri.path = "#{@base_uri.path}#{path}" - - request = case method - when :get - Net::HTTP::Get.new(uri) - when :post - Net::HTTP::Post.new(uri) - when :delete - Net::HTTP::Delete.new(uri) - else - raise Error, "Unsupported HTTP method: #{method}" - end - - request['accept'] = 'application/json' - request['api_key'] = @api_key - if payload - request['content-type'] = 'application/json' - request.body = JSON.generate(payload) - end - - retries_left = 4 - begin - response = Net::HTTP.start( - uri.host, - uri.port, - use_ssl: uri.scheme == 'https', - open_timeout: 30, - read_timeout: 120 - ) { |http| http.request(request) } - - parse_response(response) - rescue Timeout::Error, Errno::ECONNREFUSED, Errno::ECONNRESET, - Errno::EHOSTUNREACH, Errno::ENETUNREACH, - SocketError, OpenSSL::SSL::SSLError, Net::OpenTimeout => e - raise Error, "Hyperstack API request failed for #{path}: #{e.message}" if retries_left <= 0 - - retries_left -= 1 - delay = (4 - retries_left) * 5 - warn "API request to #{path} failed (#{e.class}: #{e.message}), retrying in #{delay}s (#{retries_left} left)..." - sleep delay - retry - end - end - - def parse_response(response) - body = response.body.to_s - payload = body.empty? ? {} : JSON.parse(body) - - if response.code.to_i >= 400 || payload['status'] == false - message = payload['message'] || payload['error_reason'] || response.message - raise Error, "Hyperstack API error (HTTP #{response.code}): #{message}" - end - - payload - rescue JSON::ParserError => e - raise Error, "Failed to parse Hyperstack API response: #{e.message}" - end - end - - class LocalWireGuard - def initialize(interface_name:, config_path:) - @interface_name = interface_name - @config_path = config_path - end - - def status - endpoints = configured_endpoints - { - 'service_state' => service_state, - 'config_path' => @config_path, - 'endpoint' => endpoints.last, - 'endpoints' => endpoints, - 'config_readable' => !config_contents.nil? - } - end - - def remove_peers_by_allowed_ips(allowed_ips, dry_run: false) - targets = Array(allowed_ips).map(&:to_s).map(&:strip).reject(&:empty?).uniq - return [] if targets.empty? - - content = config_contents - raise Error, "Unable to read #{@config_path} for peer cleanup." if content.nil? - - updated, removed = prune_peer_blocks(content, targets) - return [] if removed.empty? - return removed if dry_run - - write_config(updated) - restart_service_if_active - @config_contents = updated - removed - end - - def remove_hostnames(hostnames, dry_run: false) - targets = Array(hostnames).map(&:to_s).map(&:strip).reject(&:empty?).uniq - return [] if targets.empty? - - content = hosts_contents - raise Error, 'Unable to read /etc/hosts for hostname cleanup.' if content.nil? - - updated, removed = prune_hosts_entries(content, targets) - return [] if removed.empty? - return removed if dry_run - - write_hosts(updated) - @hosts_contents = updated - removed - end - - private - - def service_state - stdout, _stderr, status = Open3.capture3('systemctl', 'is-active', "wg-quick@#{@interface_name}") - value = stdout.to_s.strip - return value unless value.empty? - return 'active' if status.success? - - 'unknown' - end - - def configured_endpoint - configured_endpoints.last - end - - def configured_endpoints - content = config_contents - return [] if content.nil? - - parse_wireguard_peers(content).filter_map { |peer| peer['Endpoint'] }.uniq - end - - def parse_wireguard_peers(content) - current_section = nil - current_peer = nil - peers = [] - - content.each_line do |line| - stripped = line.strip - next if stripped.empty? || stripped.start_with?('#') - - if stripped.start_with?('[') && stripped.end_with?(']') - peers << current_peer if current_section == 'Peer' && current_peer && !current_peer.empty? - current_section = stripped[1..-2] - current_peer = current_section == 'Peer' ? {} : nil - next - end - - key, value = stripped.split('=', 2).map { |part| part&.strip } - next unless current_section == 'Peer' && key && value - - current_peer[key] = value - end - - peers << current_peer if current_section == 'Peer' && current_peer && !current_peer.empty? - peers - end - - def prune_peer_blocks(content, allowed_ips) - kept = [] - removed = [] - - parse_wireguard_blocks(content).each do |block| - if block[:section] == 'Peer' && allowed_ips.include?(block[:values]['AllowedIPs'].to_s.strip) - removed << block[:values] - else - kept << block[:lines].join - end - end - - [kept.join, removed] - end - - def parse_wireguard_blocks(content) - blocks = [] - current_section = nil - current_lines = [] - - content.each_line do |line| - stripped = line.strip - if stripped.start_with?('[') && stripped.end_with?(']') - blocks << wireguard_block(current_section, current_lines) unless current_lines.empty? - current_section = stripped[1..-2] - current_lines = [line] - else - current_lines << line - end - end - - blocks << wireguard_block(current_section, current_lines) unless current_lines.empty? - blocks - end - - def wireguard_block(section, lines) - { - section: section, - lines: lines.dup, - values: parse_wireguard_section_values(section, lines) - } - end - - def parse_wireguard_section_values(section, lines) - return {} unless section == 'Peer' - - lines.each_with_object({}) do |line, values| - stripped = line.strip - next if stripped.empty? || stripped.start_with?('#') || stripped.start_with?('[') - - key, value = stripped.split('=', 2).map { |part| part&.strip } - values[key] = value if key && value - end - end - - def write_config(content) - File.write(@config_path, content) - rescue Errno::EACCES - _stdout, stderr, status = Open3.capture3('sudo', '-n', 'tee', @config_path, stdin_data: content) - raise Error, "Failed to update #{@config_path}: #{stderr.to_s.strip}" unless status.success? - - _stdout, stderr, status = Open3.capture3('sudo', '-n', 'chmod', '600', @config_path) - raise Error, "Failed to chmod #{@config_path}: #{stderr.to_s.strip}" unless status.success? - end - - def restart_service_if_active - return unless service_state == 'active' - - _stdout, stderr, status = Open3.capture3('sudo', '-n', 'systemctl', 'restart', "wg-quick@#{@interface_name}") - raise Error, "Failed to restart wg-quick@#{@interface_name}: #{stderr.to_s.strip}" unless status.success? - end - - def config_contents - return @config_contents if defined?(@config_contents) - - @config_contents = File.read(@config_path) - rescue Errno::EACCES, Errno::ENOENT - stdout, _stderr, status = Open3.capture3('sudo', '-n', 'cat', @config_path) - @config_contents = status.success? ? stdout : nil - end - - def hosts_contents - return @hosts_contents if defined?(@hosts_contents) - - @hosts_contents = File.read('/etc/hosts') - rescue Errno::EACCES, Errno::ENOENT - stdout, _stderr, status = Open3.capture3('sudo', '-n', 'cat', '/etc/hosts') - @hosts_contents = status.success? ? stdout : nil - end - - def prune_hosts_entries(content, hostnames) - removed = [] - updated = content.each_line.filter_map do |line| - rewritten, line_removed = prune_host_line(line, hostnames) - removed.concat(line_removed) - rewritten - end - [updated.join, removed.uniq] - end - - def prune_host_line(line, hostnames) - stripped = line.strip - return [line, []] if stripped.empty? || stripped.start_with?('#') - - body, comment = line.split('#', 2) - tokens = body.split(/\s+/) - return [line, []] if tokens.empty? - - ip = tokens.shift - removed = tokens & hostnames - return [line, []] if removed.empty? - - remaining = tokens - hostnames - return [nil, removed] if remaining.empty? - - rewritten = ([ip] + remaining).join("\t") - rewritten = "#{rewritten} # #{comment.strip}" if comment && !comment.strip.empty? - ["#{rewritten}\n", removed] - end - - def write_hosts(content) - File.write('/etc/hosts', content) - rescue Errno::EACCES - _stdout, stderr, status = Open3.capture3('sudo', '-n', 'tee', '/etc/hosts', stdin_data: content) - raise Error, "Failed to update /etc/hosts: #{stderr.to_s.strip}" unless status.success? - end - end - - # Thread-safe output wrapper that prepends a fixed prefix to each line. - # Used by create-both so interleaved output from VM1 and VM2 threads is distinguishable. - # #print buffers partial lines until a newline is received, then flushes with the prefix. - class PrefixedOutput - def initialize(prefix, delegate, mutex) - @prefix = prefix - @delegate = delegate - @mutex = mutex - @buffer = +'' - end - - def puts(msg = '') - @mutex.synchronize { @delegate.puts("#{@prefix}#{msg}") } - end - - def print(msg) - @buffer << msg.to_s - while (idx = @buffer.index("\n")) - line = @buffer.slice!(0, idx + 1) - @mutex.synchronize { @delegate.print("#{@prefix}#{line}") } - end - end - end - - class ProvisioningScripts - def initialize(config:) - @config = config - end - - def guest_bootstrap_script - script = [] - script << 'set -euo pipefail' - - # Wait for any running unattended-upgrades or apt locks to release - # before attempting package operations (transient lock on fresh VMs) - script << 'echo "Waiting for apt locks to clear..."' - script << 'for i in $(seq 1 30); do' - script << ' if ! fuser /var/lib/dpkg/lock-frontend /var/lib/apt/lists/lock /var/cache/apt/archives/lock >/dev/null 2>&1; then break; fi' - script << ' echo " apt lock held, waiting ($i/30)..."; sleep 10' - script << 'done' - script << 'sudo systemctl stop unattended-upgrades.service 2>/dev/null || true' - script << 'sudo systemctl disable unattended-upgrades.service 2>/dev/null || true' - - if @config.install_wireguard? - script << 'which wg >/dev/null 2>&1 || (sudo apt-get update && sudo apt-get install -y wireguard)' - end - - if @config.configure_ufw? - script << "sudo ufw allow #{@config.ssh_port}/tcp comment 'Allow SSH' >/dev/null 2>&1 || true" - script << 'sudo ufw --force enable >/dev/null 2>&1 || true' - script << "sudo ufw allow #{@config.wireguard_udp_port}/udp comment 'WireGuard #{@config.local_interface_name}' >/dev/null 2>&1 || true" - # Port 11434 is shared by Ollama and vLLM; open for both regardless of which is installed. - script << "sudo ufw allow from #{Shellwords.escape(@config.wireguard_subnet)} to any port #{@config.ollama_port} proto tcp comment 'Inference API (Ollama/vLLM) via #{@config.local_interface_name}' >/dev/null 2>&1 || true" - # ComfyUI REST API on port 8188; only open when ComfyUI is enabled. - if @config.comfyui_install_enabled? - script << "sudo ufw allow from #{Shellwords.escape(@config.wireguard_subnet)} to any port #{@config.comfyui_port} proto tcp comment 'ComfyUI API via #{@config.local_interface_name}' >/dev/null 2>&1 || true" - end - end - - if @config.configure_ollama_host? - # Only write a minimal OLLAMA_HOST override if no override exists yet; - # ollama_setup_script writes the full override (OLLAMA_MODELS, GPU_OVERHEAD, etc.) - script << "if systemctl list-unit-files | grep -q '^ollama.service'; then" - script << ' if [ ! -f /etc/systemd/system/ollama.service.d/override.conf ]; then' - script << ' sudo mkdir -p /etc/systemd/system/ollama.service.d' - script << " cat <<'OVERRIDE' | sudo tee /etc/systemd/system/ollama.service.d/override.conf >/dev/null" - script << '[Service]' - script << "Environment=\"OLLAMA_HOST=0.0.0.0:#{@config.ollama_port}\"" - script << 'OVERRIDE' - script << ' sudo systemctl daemon-reload' - script << ' sudo systemctl restart ollama || true' - script << ' fi' - script << 'fi' - end - - script << 'echo bootstrap-ok' - script.join("\n") - end - - def desired_ollama_models - normalized_model_list(@config.ollama_pull_models) - end - - def model_list_signature(models) - normalized_model_list(models).sort - end - - def ollama_install_script - models_dir = @config.ollama_models_dir - listen_host = @config.ollama_listen_host - - script = [] - script << 'set -euo pipefail' - script << 'sudo pkill -f unattended-upgrade >/dev/null 2>&1 || true' - script << 'if ! command -v ollama >/dev/null 2>&1; then curl -fsSL https://ollama.ai/install.sh | sh; fi' - if models_dir.start_with?('/ephemeral') - script << "mountpoint -q /ephemeral || { echo 'Expected /ephemeral mount is missing'; exit 1; }" - end - script << "sudo mkdir -p #{Shellwords.escape(models_dir)}" - script << "sudo chown -R ollama:ollama #{Shellwords.escape(File.dirname(models_dir))}" - script << 'sudo mkdir -p /etc/systemd/system/ollama.service.d' - script << "cat <<'OVERRIDE' | sudo tee /etc/systemd/system/ollama.service.d/override.conf >/dev/null" - script << '[Service]' - script << "Environment=\"OLLAMA_MODELS=#{models_dir}\"" - script << "Environment=\"OLLAMA_GPU_OVERHEAD=#{@config.ollama_gpu_overhead_mb}\"" - script << "Environment=\"OLLAMA_NUM_PARALLEL=#{@config.ollama_num_parallel}\"" - script << "Environment=\"OLLAMA_CONTEXT_LENGTH=#{@config.ollama_context_length}\"" - script << "Environment=\"OLLAMA_HOST=#{listen_host}\"" - script << 'OVERRIDE' - script << 'sudo systemctl daemon-reload' - script << 'sudo systemctl enable --now ollama' - script << 'sudo systemctl restart ollama' - script << 'sleep 3' - script << 'systemctl is-active --quiet ollama' - script << 'echo ollama-install-ok' - script.join("\n") - end - - def ollama_pull_script(models: desired_ollama_models) - models_dir = @config.ollama_models_dir - - script = [] - script << 'set -euo pipefail' - # Pull each model with retry (transient network failures) and verify - # it is actually present afterwards - models.each do |model| - escaped = Shellwords.escape(model) - script << "echo \"Pulling model #{model}...\"" - script << 'for attempt in 1 2 3; do' - script << " if ollama pull #{escaped}; then break; fi" - script << " if [ \"$attempt\" -eq 3 ]; then echo \"FATAL: failed to pull #{model} after 3 attempts\"; exit 1; fi" - script << ' echo " pull attempt $attempt failed, retrying in 15s..."; sleep 15' - script << 'done' - script << "ollama show #{escaped} --modelfile >/dev/null 2>&1 || { echo \"FATAL: model #{model} not found after pull\"; exit 1; }" - end - # Final verification: ensure all expected models are listed - script << 'echo "Verifying all models are present..."' - models.each do |model| - escaped = Shellwords.escape(model) - script << "ollama show #{escaped} --modelfile >/dev/null 2>&1 || { echo \"FATAL: model #{model} missing in final check\"; exit 1; }" - end - script << "echo ollama-models-dir=#{models_dir}" - script << 'echo ollama-ok' - script.join("\n") - end - - def vllm_stop_script(container_name) - script = [] - script << 'set -euo pipefail' - script << "docker stop #{Shellwords.escape(container_name)} 2>/dev/null || true" - script << "docker rm #{Shellwords.escape(container_name)} 2>/dev/null || true" - script << 'echo vllm-stopped' - script.join("\n") - end - - def vllm_install_script(preset_config: nil, pull_image: true) - cfg = preset_config || {} - model = cfg['model'] || @config.vllm_model - cache_dir = @config.vllm_hug_cache_dir - compile_cache = @config.vllm_compile_cache_dir - container = cfg['container_name'] || @config.vllm_container_name - max_len = Integer(cfg['max_model_len'] || @config.vllm_max_model_len) - gpu_util = Float(cfg['gpu_memory_utilization'] || @config.vllm_gpu_memory_utilization) - tp_size = Integer(cfg['tensor_parallel_size'] || @config.vllm_tensor_parallel_size) - parser = cfg['tool_call_parser'] - # parser is nil only when preset explicitly omits the key and config has no default; - # empty string means "disable tool calling" (e.g. gpt-oss reasoning models). - parser = @config.vllm_tool_call_parser if parser.nil? - # Fall back to the top-level [vllm] config values when no preset is in use. - # This allows setting trust_remote_code / extra_vllm_args in the default [vllm] block - # without requiring a --model preset flag at create time. - trust_remote = cfg.key?('trust_remote_code') ? cfg['trust_remote_code'] : @config.vllm_trust_remote_code - # Prefix caching: preset value takes priority; nil means fall back to top-level [vllm] setting. - prefix_cache = if cfg.key?('enable_prefix_caching') && !cfg['enable_prefix_caching'].nil? - cfg['enable_prefix_caching'] == true - else - @config.vllm_prefix_caching_enabled? - end - extra_env = cfg.key?('extra_docker_env') ? Array(cfg['extra_docker_env']) : @config.vllm_extra_docker_env - port = @config.ollama_port - - docker_args = [ - 'docker run -d', - '--gpus all', '--ipc=host', '--network host', - "--name #{Shellwords.escape(container)}", - '--restart always', - "-v #{Shellwords.escape(cache_dir)}:/root/.cache/huggingface", - # Mount torch.compile cache so CUDA kernel compilation is skipped on warm restarts. - # Without this, every container restart recompiles (~30-60 s extra). - "-v #{Shellwords.escape(compile_cache)}:/root/.cache/vllm" - ] - # Extra Docker env vars (e.g. VLLM_ALLOW_LONG_MAX_MODEL_LEN=1) injected before the image name. - extra_env.each { |kv| docker_args << "-e #{Shellwords.escape(kv)}" } - docker_args += [ - 'vllm/vllm-openai:latest', - "--model #{Shellwords.escape(model)}", - "--tensor-parallel-size #{tp_size}", - "--gpu-memory-utilization #{gpu_util}", - "--max-model-len #{max_len}", - '--host 0.0.0.0', - "--port #{port}" - ] - # Prefix caching is beneficial for most models but forces Mamba "all" cache mode on - # NemotronH, which pre-allocates states for all sequences and can OOM on startup. - docker_args << '--enable-prefix-caching' if prefix_cache - # Tool calling is optional: empty/nil parser disables it. - unless parser.nil? || parser.empty? - docker_args << '--enable-auto-tool-choice' - docker_args << "--tool-call-parser #{Shellwords.escape(parser)}" - end - docker_args << '--trust-remote-code' if trust_remote - extra_args = cfg.key?('extra_vllm_args') ? Array(cfg['extra_vllm_args']) : @config.vllm_extra_args - extra_args.each { |arg| docker_args << arg } - docker_run = docker_args.join(' ') - - script = [] - script << 'set -euo pipefail' - script << "sudo mkdir -p #{Shellwords.escape(cache_dir)} #{Shellwords.escape(compile_cache)}" - script << "sudo chmod -R 0777 #{Shellwords.escape(cache_dir)} #{Shellwords.escape(compile_cache)}" - script << "docker stop #{Shellwords.escape(container)} 2>/dev/null || true" - script << "docker rm #{Shellwords.escape(container)} 2>/dev/null || true" - script << 'docker pull vllm/vllm-openai:latest' if pull_image - script << docker_run - script << 'echo "Waiting for vLLM to become ready (up to 10 min for first model download)..."' - script << 'for i in $(seq 1 240); do' - script << " if curl -sf http://localhost:#{port}/v1/models >/dev/null 2>&1; then echo vllm-ready; break; fi" - script << " state=$(docker inspect --format='{{.State.Status}}' #{Shellwords.escape(container)} 2>/dev/null || echo unknown)" - script << ' echo " vLLM not ready yet ($i/240, container=$state)..."' - script << ' sleep 5' - script << 'done' - script << "curl -sf http://localhost:#{port}/v1/models >/dev/null || { echo 'FATAL: vLLM did not become ready within 20 minutes'; exit 1; }" - script << 'echo vllm-install-ok' - script.join("\n") - end - - def comfyui_install_script - models_dir = @config.comfyui_models_dir - output_dir = @config.comfyui_output_dir - port = @config.comfyui_port - model_names = @config.comfyui_models - # Use ubuntu home dir to avoid /opt permission issues when running as the SSH user. - install_dir = '/home/ubuntu/ComfyUI' - venv_dir = '/home/ubuntu/comfyui-venv' - service = 'comfyui' - - script = [] - script << 'set -euo pipefail' - - # Wait for apt locks released by unattended-upgrades before touching packages. - script << 'for i in $(seq 1 30); do' - script << ' if ! fuser /var/lib/dpkg/lock-frontend /var/lib/apt/lists/lock /var/cache/apt/archives/lock >/dev/null 2>&1; then break; fi' - script << ' echo " apt lock held, waiting ($i/30)..."; sleep 10' - script << 'done' - script << 'sudo pkill -f unattended-upgrade >/dev/null 2>&1 || true' - - # Install system deps: git, python venv, wget. - script << 'sudo apt-get update -qq' - script << 'sudo apt-get install -y -qq git python3-venv python3-pip wget' - - # Ephemeral NVMe dirs for models and output. - script << "sudo mkdir -p #{Shellwords.escape(models_dir)} #{Shellwords.escape(output_dir)}" - script << "sudo chmod -R 0777 #{Shellwords.escape(File.dirname(models_dir))}" - - # Clone or update ComfyUI from the official repo (no sudo needed in ubuntu home). - script << "if [ ! -d #{Shellwords.escape(install_dir)} ]; then" - script << " git clone --depth 1 https://github.com/comfyanonymous/ComfyUI #{Shellwords.escape(install_dir)}" - script << 'else' - script << " git -C #{Shellwords.escape(install_dir)} pull --ff-only" - script << 'fi' - - # Create Python venv and install PyTorch + ComfyUI deps. - # CUDA 12.8 is installed on the VM; cu128 wheel index covers it. - script << "[ -d #{Shellwords.escape(venv_dir)} ] || python3 -m venv #{Shellwords.escape(venv_dir)}" - script << "#{venv_dir}/bin/pip install --quiet --upgrade pip" - script << "#{venv_dir}/bin/pip install --quiet torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cu128" - script << "#{venv_dir}/bin/pip install --quiet -r #{Shellwords.escape("#{install_dir}/requirements.txt")}" - - # Symlink ephemeral model/output dirs into the ComfyUI directory tree. - script << "rm -rf #{Shellwords.escape("#{install_dir}/models")} && ln -sfn #{Shellwords.escape(models_dir)} #{Shellwords.escape("#{install_dir}/models")}" - script << "rm -rf #{Shellwords.escape("#{install_dir}/output")} && ln -sfn #{Shellwords.escape(output_dir)} #{Shellwords.escape("#{install_dir}/output")}" - - # Systemd service so ComfyUI starts on reboot. - script << "cat <<'UNIT' | sudo tee /etc/systemd/system/#{Shellwords.escape(service)}.service >/dev/null" - script << '[Unit]' - script << 'Description=ComfyUI photo enhancement server' - script << 'After=network.target' - script << '[Service]' - script << "ExecStart=#{venv_dir}/bin/python #{install_dir}/main.py --listen 0.0.0.0 --port #{port} --output-directory #{output_dir}" - script << 'Restart=on-failure' - script << 'RestartSec=5' - script << "WorkingDirectory=#{install_dir}" - script << 'Environment=HOME=/root' - script << '[Install]' - script << 'WantedBy=multi-user.target' - script << 'UNIT' - script << 'sudo systemctl daemon-reload' - script << "sudo systemctl enable --now #{Shellwords.escape(service)}" - script << "sudo systemctl restart #{Shellwords.escape(service)}" - - # Wait for ComfyUI API to respond (model loading and CUDA init can take ~60s). - script << 'echo "Waiting for ComfyUI to become ready (up to 5 min)..."' - script << 'for i in $(seq 1 60); do' - script << " if curl -sf http://localhost:#{port}/system_stats >/dev/null 2>&1; then echo comfyui-ready; break; fi" - script << ' echo " ComfyUI not ready yet ($i/60)..."; sleep 5' - script << 'done' - script << "curl -sf http://localhost:#{port}/system_stats >/dev/null || { echo 'FATAL: ComfyUI did not become ready within 5 minutes'; exit 1; }" - - # Install ComfyUI-SUPIR custom node (provides SUPIR_Upscale and related nodes). - supir_node_dir = "#{install_dir}/custom_nodes/ComfyUI-SUPIR" - script << "if [ ! -d #{Shellwords.escape(supir_node_dir)} ]; then" - script << " git clone --depth 1 https://github.com/kijai/ComfyUI-SUPIR #{Shellwords.escape(supir_node_dir)}" - script << " #{venv_dir}/bin/pip install --quiet -r #{Shellwords.escape("#{supir_node_dir}/requirements.txt")}" - script << 'fi' - - # Download model weights into the ComfyUI subdirectories. - # Real-ESRGAN → upscale_models/; SUPIR → checkpoints/; SDXL base → checkpoints/. - model_names.each do |model_name| - case model_name - when /RealESRGAN/i - dest_dir = "#{models_dir}/upscale_models" - url = if model_name =~ /anime/i - 'https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/RealESRGAN_x4plus_anime_6B.pth' - else - 'https://github.com/xinntao/Real-ESRGAN/releases/download/v0.1.0/RealESRGAN_x4plus.pth' - end - dest_file = "#{dest_dir}/#{model_name}.pth" - script << "mkdir -p #{Shellwords.escape(dest_dir)}" - script << "[ -f #{Shellwords.escape(dest_file)} ] || wget -q --show-progress -O #{Shellwords.escape(dest_file)} #{Shellwords.escape(url)}" - when /SUPIR/i - # SUPIR-v0Q (~5 GB): AI photo restoration backbone (denoising + detail recovery). - # SDXL base (~7 GB): provides CLIP encoders that SUPIR uses for text conditioning. - # Both must live in checkpoints/ so SUPIR_Upscale can find them by filename. - dest_dir = "#{models_dir}/checkpoints" - hf_file = model_name.end_with?('F') ? 'SUPIR-v0F.ckpt' : 'SUPIR-v0Q.ckpt' - supir_url = "https://huggingface.co/camenduru/SUPIR/resolve/main/#{hf_file}" - sdxl_url = 'https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0/resolve/main/sd_xl_base_1.0.safetensors' - script << "mkdir -p #{Shellwords.escape(dest_dir)}" - script << "[ -f #{Shellwords.escape("#{dest_dir}/#{hf_file}")} ] || wget -q --show-progress -O #{Shellwords.escape("#{dest_dir}/#{hf_file}")} #{Shellwords.escape(supir_url)}" - script << "[ -f #{Shellwords.escape("#{dest_dir}/sd_xl_base_1.0.safetensors")} ] || wget -q --show-progress -O #{Shellwords.escape("#{dest_dir}/sd_xl_base_1.0.safetensors")} #{Shellwords.escape(sdxl_url)}" - end - end - - # Restart ComfyUI so it picks up the new custom nodes and model files. - script << "sudo systemctl restart #{Shellwords.escape(service)}" - script << 'echo "Waiting for ComfyUI restart..."' - script << 'for i in $(seq 1 60); do' - script << " if curl -sf http://localhost:#{port}/system_stats >/dev/null 2>&1; then echo comfyui-ready; break; fi" - script << ' echo " ComfyUI not ready yet ($i/60)..."; sleep 5' - script << 'done' - - script << 'echo comfyui-install-ok' - script.join("\n") - end - - def litellm_decommission_script - script = [] - script << 'set -euo pipefail' - script << 'sudo systemctl stop litellm 2>/dev/null || true' - script << 'sudo systemctl disable litellm 2>/dev/null || true' - script << 'sudo rm -f /etc/systemd/system/litellm.service' - script << 'sudo systemctl daemon-reload' - script << 'sudo rm -f /ephemeral/litellm-config.yaml' - script << 'sudo rm -rf /ephemeral/litellm-env' - script << 'sudo rm -f /ephemeral/litellm.log' - script << "sudo ufw --force delete allow from #{Shellwords.escape(@config.wireguard_subnet)} to any port 4000 proto tcp >/dev/null 2>&1 || true" - script << 'echo litellm-decommission-ok' - script.join("\n") - end - - private - - def normalized_model_list(models) - Array(models).each_with_object([]) do |model, ordered| - normalized = model.to_s.strip - next if normalized.empty? || ordered.include?(normalized) - - ordered << normalized - end - end - end - - class RemoteProvisioner - def initialize(config:, scripts:, out:, ssh_command_runner:, ssh_stream_runner:) - @config = config - @scripts = scripts - @out = out - @ssh_command_runner = ssh_command_runner - @ssh_stream_runner = ssh_stream_runner - end - - def bootstrap_guest(host) - info 'Bootstrapping Ubuntu guest over SSH...' - retries = 3 - retries.times do |attempt| - stdout, stderr, status = @ssh_command_runner.call(host, @scripts.guest_bootstrap_script) - return if status.success? - - msg = stderr.strip.empty? ? stdout : stderr - raise Error, "Guest bootstrap failed after #{retries} attempts: #{msg}" if attempt == retries - 1 - - warn "Bootstrap attempt #{attempt + 1}/#{retries} failed (#{msg.lines.last&.strip}), retrying in 15s..." - sleep 15 - end - end - - def install_ollama_service(host) - info "Installing and configuring Ollama on #{host}..." - output, status = @ssh_stream_runner.call(host, @scripts.ollama_install_script) - raise Error, "Ollama install failed: #{output.strip}" unless status.success? - end - - def pull_ollama_models(host) - info "Pulling Ollama models on #{host}..." - output, status = @ssh_stream_runner.call(host, @scripts.ollama_pull_script) - raise Error, "Ollama model pull failed: #{output.strip}" unless status.success? - - verify_remote_models(host) - end - - def stop_vllm_container(host, container_name) - info "Stopping old vLLM container #{container_name}..." - output, status = @ssh_stream_runner.call(host, @scripts.vllm_stop_script(container_name)) - raise Error, "Failed to stop container #{container_name}: #{output.strip}" unless status.success? - end - - def install_vllm(host, preset_config: nil, pull_image: true) - info "Setting up vLLM Docker container on #{host}..." - output, status = @ssh_stream_runner.call(host, @scripts.vllm_install_script(preset_config: preset_config, - pull_image: pull_image)) - raise Error, "vLLM install failed: #{output.strip}" unless status.success? - end - - def decommission_litellm(host) - info "Removing deprecated LiteLLM service from #{host} if present..." - output, status = @ssh_stream_runner.call(host, @scripts.litellm_decommission_script) - raise Error, "LiteLLM decommission failed: #{output.strip}" unless status.success? - end - - def setup_vllm_stack(host, preset_config: nil) - install_vllm(host, preset_config: preset_config) - end - - def install_comfyui(host) - info "Setting up ComfyUI Docker container on #{host}..." - output, status = @ssh_stream_runner.call(host, @scripts.comfyui_install_script) - raise Error, "ComfyUI install failed: #{output.strip}" unless status.success? - end - - private - - def verify_remote_models(host) - stdout, _stderr, status = @ssh_command_runner.call(host, 'ollama list') - return unless status.success? - - remote_models = stdout.lines.drop(1).map { |line| line.split.first }.compact - missing = @scripts.desired_ollama_models.reject do |model| - remote_models.any? do |remote| - remote.start_with?(model) - end - end - return if missing.empty? - - raise Error, "Models missing after setup: #{missing.join(', ')}. Remote has: #{remote_models.join(', ')}" - end - - def info(message) - @out.puts(message) - end - - def warn(message) - @out.puts("WARNING: #{message}") - end - end - - class Manager - # wg_setup_pre: optional Proc called just before this VM's WireGuard setup step runs. - # Used by create-both to block VM2 until VM1 has written the base wg1.conf. - # wg_setup_post: optional Proc called after the WireGuard step completes (or is skipped). - # Used by create-both to signal that VM1's base config is ready for VM2. - def initialize(config:, client:, state_store:, local_wireguard:, out: $stdout, - wg_setup_pre: nil, wg_setup_post: nil) - @config = config - @client = client - @state_store = state_store - @local_wireguard = local_wireguard - @out = out - @scripts = ProvisioningScripts.new(config: config) - @provisioner = RemoteProvisioner.new(config: config, scripts: @scripts, out: out, - ssh_command_runner: method(:run_ssh_command), - ssh_stream_runner: method(:run_ssh_command_streaming)) - @wg_setup_pre = wg_setup_pre - @wg_setup_post = wg_setup_post - end - - def create(replace: false, dry_run: false, install_vllm: nil, install_ollama: nil, install_comfyui: nil, - vllm_preset: nil) - # CLI flags override config; nil means "use config default". - @effective_vllm = install_vllm.nil? ? @config.vllm_install_enabled? : install_vllm - @effective_ollama = install_ollama.nil? ? @config.ollama_install_enabled? : install_ollama - @effective_comfyui = install_comfyui.nil? ? @config.comfyui_install_enabled? : install_comfyui - # Validate preset name early so we fail before touching any remote state. - @effective_vllm_preset = vllm_preset - @config.vllm_preset(vllm_preset) if vllm_preset - existing_state = @state_store.load - if existing_state && existing_state['vm_id'] - if replace - if dry_run - info "DRY RUN: would delete tracked VM #{existing_state['vm_id']} before creating a replacement." - else - delete(vm_id: existing_state['vm_id'], preserve_state_on_failure: true) - end - elsif resumable_state?(existing_state) - if dry_run - print_resume_dry_run(existing_state) - return - end - - info "Resuming tracked VM #{existing_state['vm_id']} provisioning..." - continue_create(existing_state) - return - else - raise Error, - "State file #{@state_store.path} already tracks VM #{existing_state['vm_id']}. Use --replace or delete first." - end - end - - resolved = resolve_dependencies - vm_name = @config.generated_vm_name - if dry_run - info "Planning VM #{vm_name} in #{resolved[:environment]['name']} using #{@config.flavor_name}..." - else - info "Creating VM #{vm_name} in #{resolved[:environment]['name']} using #{@config.flavor_name}..." - end - - payload = build_create_payload(vm_name, resolved) - if dry_run - print_create_dry_run(vm_name, resolved, payload) - return - end - - response = @client.create_vm(payload) - instance = Array(response['instances']).first - raise Error, 'Hyperstack create response did not include an instance ID.' unless instance && instance['id'] - - state = { - 'vm_id' => instance['id'], - 'vm_name' => vm_name, - 'environment_name' => resolved[:environment]['name'], - 'region' => resolved[:environment]['region'], - 'flavor_name' => resolved[:flavor]['name'], - 'image_name' => resolved[:image]['name'], - 'key_name' => resolved[:keypair]['name'], - 'public_ip' => instance['floating_ip'], - 'created_at' => Time.now.utc.iso8601 - } - sync_service_mode_state(state) - @state_store.save(state) - continue_create(state) - end - - def delete(vm_id: nil, preserve_state_on_failure: false, dry_run: false, skip_local_cleanup: false) - state = @state_store.load - target_vm_id = vm_id || state&.dig('vm_id') - raise Error, "No VM ID provided and no state file found at #{@state_store.path}." if target_vm_id.nil? - - cleanup_local = !skip_local_cleanup && state && target_vm_id == state['vm_id'] - - if dry_run - print_delete_dry_run(target_vm_id, state, preserve_state_on_failure: preserve_state_on_failure) - return - end - - info "Deleting VM #{target_vm_id}..." - @client.delete_vm(target_vm_id) - wait_for_deletion(target_vm_id) - if cleanup_local - cleanup = cleanup_local_access(dry_run: false, hostnames: [@config.wireguard_gateway_hostname], - allowed_ips: ["#{@config.wireguard_gateway_ip}/32"]) - report_local_cleanup(@out, cleanup, dry_run: false) - end - delete_ssh_known_hosts_file - @state_store.delete unless preserve_state_on_failure - info "VM #{target_vm_id} deleted." - rescue Error - raise if preserve_state_on_failure - - @state_store.delete - raise - end - - def status(include_local_wireguard: true) - state = @state_store.load - if state.nil? - info "No tracked VM state file at #{@state_store.path}." - else - begin - vm = @client.get_vm(state['vm_id']) - desired = desired_security_rules_for_state(state).map { |rule| normalize_rule(rule) } - current = Array(vm['security_rules']).map { |rule| normalize_rule(rule) } - missing_rules = desired - current - vllm_enabled = state_vllm_enabled?(state) - ollama_enabled = state_ollama_enabled?(state) - comfyui_enabled = state_comfyui_enabled?(state) - - info "Tracked VM: #{state['vm_id']} #{vm['name']}" - info "Status: #{vm['status']} / #{vm['vm_state']}" - info "Public IP: #{connect_host_for(vm) || 'none'}" - info "Service mode: #{service_mode_summary(vllm_enabled: vllm_enabled, ollama_enabled: ollama_enabled, - comfyui_enabled: comfyui_enabled)}" - info "Active model: #{state['vllm_model'] || @config.vllm_model}" if vllm_enabled - if comfyui_enabled - wg_ip = @config.wireguard_gateway_hostname - info "ComfyUI: http://#{wg_ip}:#{@config.comfyui_port}" - end - info "Missing firewall rules: #{missing_rules.empty? ? 'none' : missing_rules.size}" - rescue Error => e - warn "Unable to load VM #{state['vm_id']}: #{e.message}" - end - end - - print_local_wireguard_summary(state&.dig('public_ip')) if include_local_wireguard - state&.dig('public_ip') - end - - def show_local_wireguard(expected_ips = nil) - print_local_wireguard_summary(expected_ips) - end - - # Lists configured model presets and marks the one currently running on the VM. - def list_models - presets = @config.vllm_preset_names - state = @state_store.load - current = state&.dig('vllm_model') - - if presets.empty? - info 'No presets configured in [vllm.presets.*].' - info "Active model: #{current || @config.vllm_model}" - return - end - - info 'Configured vLLM model presets:' - presets.each do |name| - p = @config.vllm_preset(name) - active = p['model'] == current - info " #{active ? '*' : ' '} #{name.ljust(24)} #{p['model']}" - end - info '' - info ' (* = currently loaded on VM)' if current - end - - # Switches the running VM to a different named model preset. - # Stops the old container, then starts the new vLLM container in its place. - def switch_model(preset_name:, dry_run: false) - preset = @config.vllm_preset(preset_name) # raises if unknown - state = @state_store.load - - old_container = state&.dig('vllm_container_name') || @config.vllm_container_name - new_container = preset['container_name'] - current_model = state&.dig('vllm_model') - - if dry_run - info "DRY RUN: model switch to preset '#{preset_name}'" - info " #{current_model || 'none'} → #{preset['model']}" - info " container: #{old_container} → #{new_container}" - trust_note = preset['trust_remote_code'] ? ', trust_remote_code: true' : '' - parser_note = preset['tool_call_parser'].to_s.empty? ? 'none' : preset['tool_call_parser'] - extra_note = preset['extra_vllm_args']&.any? ? ", extra_args: #{preset['extra_vllm_args'].join(' ')}" : '' - info " max_model_len: #{preset['max_model_len']}, tool_call_parser: #{parser_note}#{trust_note}#{extra_note}" - return - end - - raise Error, "No tracked VM. Run 'create' first." unless state&.dig('vm_id') - - host = state['public_ip'] - raise Error, 'No public IP in state file.' if host.nil? || host.empty? - - @provisioner.decommission_litellm(host) - - # Stop the old container only when it has a different name from the new one. - @provisioner.stop_vllm_container(host, old_container) if old_container != new_container - - info "Starting vLLM with preset '#{preset_name}' (#{preset['model']})..." - # Skip docker pull: image is already present; pulling on every switch risks a - # surprise multi-GB download if the upstream image was updated. - @provisioner.install_vllm(host, preset_config: preset, pull_image: false) - - state['vllm_model'] = preset['model'] - state['vllm_container_name'] = new_container - state['vllm_preset'] = preset_name - state['vllm_setup_at'] = Time.now.utc.iso8601 - state['services'] ||= {} - state['services']['vllm_enabled'] = true - state['services']['ollama_enabled'] = state_ollama_enabled?(state) - @state_store.save(state) - - info "Model switched to '#{preset_name}' (#{preset['model']})." - info "Run 'ruby hyperstack.rb test' to verify." - end - - # Runs end-to-end inference tests against the active inference services over WireGuard. - # Requires wg1 to be active and the VM to be fully provisioned. - def test - state = @state_store.load - raise Error, "No tracked VM state file found at #{@state_store.path}." if state.nil? - - wg_ip = @config.wireguard_gateway_hostname - vllm_enabled = state_vllm_enabled?(state) - ollama_enabled = state_ollama_enabled?(state) - info "Running end-to-end inference tests via WireGuard (#{wg_ip})..." - - test_vllm(wg_ip) if vllm_enabled - - info " Ollama test: connect via SSH and run 'ollama list' to verify models." if ollama_enabled - - info 'All inference tests passed.' - end - - private - - def resumable_state?(state) - state['vm_id'] && ( - state['bootstrapped_at'].nil? || - ollama_setup_needed?(state) || - vllm_setup_needed?(state) || - comfyui_setup_needed?(state) || - wireguard_setup_needed?(state) - ) - end - - def continue_create(state) - vm_id = state['vm_id'] - sync_service_mode_state(state) - - vm = wait_for_vm_ready(vm_id) - ensure_security_rules(vm) - vm = wait_for_connect_ip(vm_id) - state['public_ip'] = connect_host_for(vm) - state['security_rules'] = Array(vm['security_rules']).map { |rule| normalize_rule(rule) } - @state_store.save(state) - - wait_for_ssh(state['public_ip']) - @provisioner.decommission_litellm(state['public_ip']) - if @config.guest_bootstrap_enabled? && state['bootstrapped_at'].nil? - @provisioner.bootstrap_guest(state['public_ip']) - state['bootstrapped_at'] = Time.now.utc.iso8601 - @state_store.save(state) - end - - # Install Ollama binary and configure the service (fast), but defer - # model pulls until after the WireGuard tunnel is up so that the user - # can monitor progress over the tunnel. - if effective_ollama? && state['ollama_installed_at'].nil? - @provisioner.install_ollama_service(state['public_ip']) - state['ollama_installed_at'] = Time.now.utc.iso8601 - @state_store.save(state) - end - - # Call pre-hook before deciding whether WireGuard setup is needed; this allows a concurrent - # sibling VM (e.g. VM2 in create-both) to block here until the primary VM (VM1) has - # already written the base wg1.conf, which VM2's setup will then extend with its own peer. - @wg_setup_pre&.call - if wireguard_setup_needed?(state) - run_wireguard_setup(state['public_ip']) - state['wireguard_setup_at'] = Time.now.utc.iso8601 - @state_store.save(state) - end - # Always signal post-hook so that a waiting sibling VM is unblocked even when - # WireGuard setup was not needed (e.g. already done on a resume). - @wg_setup_post&.call - - # Pull and verify Ollama models after the tunnel is established. - if ollama_setup_needed?(state) - @provisioner.pull_ollama_models(state['public_ip']) - state['ollama_setup_at'] = Time.now.utc.iso8601 - state['ollama_models_dir'] = @config.ollama_models_dir - state['ollama_pulled_models'] = @scripts.desired_ollama_models - @state_store.save(state) - end - - # Set up vLLM after - # the tunnel is up so that model-download progress is visible locally. - if vllm_setup_needed?(state) - preset_cfg = effective_vllm_preset_config - @provisioner.setup_vllm_stack(state['public_ip'], preset_config: preset_cfg) - state['vllm_setup_at'] = Time.now.utc.iso8601 - state['vllm_model'] = preset_cfg&.dig('model') || @config.vllm_model - state['vllm_container_name'] = preset_cfg&.dig('container_name') || @config.vllm_container_name - state['vllm_preset'] = @effective_vllm_preset - @state_store.save(state) - end - - # Set up ComfyUI after the tunnel is up so model downloads are visible locally. - if comfyui_setup_needed?(state) - @provisioner.install_comfyui(state['public_ip']) - state['comfyui_setup_at'] = Time.now.utc.iso8601 - state['comfyui_container_name'] = @config.comfyui_container_name - state['comfyui_models'] = @config.comfyui_models - @state_store.save(state) - end - - vm = @client.get_vm(vm_id) - state['security_rules'] = Array(vm['security_rules']).map { |rule| normalize_rule(rule) } - state['status'] = vm['status'] - state['vm_state'] = vm['vm_state'] - state['provisioned_at'] = Time.now.utc.iso8601 - @state_store.save(state) - - info "VM ready: #{state['public_ip']} (id=#{state['vm_id']})" - print_local_wireguard_summary(state['public_ip']) - wg_ip = @config.wireguard_gateway_hostname - if effective_vllm? - info "Run 'ruby hyperstack.rb test' to verify vLLM." - info " vLLM: http://#{wg_ip}:#{@config.ollama_port}/v1/models" - end - return unless effective_comfyui? - - info "Run 'ruby hyperstack.rb test' to verify ComfyUI." - info " ComfyUI: http://#{wg_ip}:#{@config.comfyui_port}/system_stats" - info " Enhance: ruby photo-enhance.rb --config #{File.basename(@config.path)} --indir ~/Pictures --outdir ~/Pictures/enhanced" - end - - def build_create_payload(vm_name, resolved) - payload = { - 'name' => vm_name, - 'count' => 1, - 'environment_name' => resolved[:environment]['name'], - 'flavor_name' => resolved[:flavor]['name'], - 'image_name' => resolved[:image]['name'], - 'key_name' => resolved[:keypair]['name'], - 'assign_floating_ip' => @config.assign_floating_ip?, - 'create_bootable_volume' => @config.create_bootable_volume?, - 'enable_port_randomization' => @config.enable_port_randomization?, - 'security_rules' => desired_security_rules - } - payload['labels'] = @config.labels unless @config.labels.empty? - payload['user_data'] = @config.user_data if @config.user_data - payload - end - - def resolve_dependencies - environment = @client.list_environments.find { |item| item['name'] == @config.environment_name } - raise Error, "Environment #{@config.environment_name.inspect} was not found in Hyperstack." unless environment - - flavor = @client.list_flavors.find do |item| - item['name'] == @config.flavor_name && item['region_name'] == environment['region'] - end - raise Error, "Flavor #{@config.flavor_name.inspect} is not available in #{environment['region']}." unless flavor - - if flavor['stock_available'] == false - raise Error, - "Flavor #{@config.flavor_name.inspect} exists in #{environment['region']} but is out of stock." - end - - image = @client.list_images.find do |item| - item['name'] == @config.image_name && item['region_name'] == environment['region'] - end - raise Error, "Image #{@config.image_name.inspect} is not available in #{environment['region']}." unless image - - keypair = @client.list_keypairs.find do |item| - item['name'] == @config.ssh_key_name && item.dig('environment', 'name') == environment['name'] - end - unless keypair - raise Error, - "Keypair #{@config.ssh_key_name.inspect} was not found in environment #{environment['name']}." - end - - { - environment: environment, - flavor: flavor, - image: image, - keypair: keypair - } - end - - def wait_for_vm_ready(vm_id) - with_polling("VM #{vm_id} to become ready for firewall updates") do - vm = @client.get_vm(vm_id) - next nil if vm.nil? - - raise Error, "VM #{vm_id} entered failed state #{vm['status']} / #{vm['vm_state']}." if failed_vm?(vm) - - vm_ready_for_updates?(vm) ? vm : nil - end - end - - def wait_for_connect_ip(vm_id) - ip_label = @config.assign_floating_ip? ? 'floating IP' : 'reachable IP' - with_polling("VM #{vm_id} to receive a #{ip_label}") do - vm = @client.get_vm(vm_id) - raise Error, "VM #{vm_id} entered failed state #{vm['status']} / #{vm['vm_state']}." if failed_vm?(vm) - - connect_host_for(vm) ? vm : nil - end - end - - def wait_for_ssh(host) - info "Waiting for SSH on #{host}:#{@config.ssh_port}..." - with_polling("SSH on #{host}:#{@config.ssh_port}") do - next nil unless tcp_open?(host, @config.ssh_port) - next nil unless ensure_trusted_ssh_host(host) - - _, stderr, status = run_ssh_command(host, 'true') - if status.success? - true - else - warn "SSH not ready yet: #{stderr.strip}" unless stderr.to_s.strip.empty? - nil - end - end - end - - def ensure_security_rules(vm) - existing_rules = Array(vm['security_rules']) - existing = existing_rules.map { |rule| normalize_rule(rule) } - desired = desired_security_rules.map { |rule| normalize_rule(rule) } - - (desired - existing).each do |rule| - info "Adding Hyperstack firewall rule #{rule['protocol']} #{rule['remote_ip_prefix']} #{rule['port_range_min']}..." - @client.create_vm_rule(vm['id'], rule) - end - - legacy_litellm_rules(existing_rules).each do |rule| - rule_id = rule['id'] || rule['rule_id'] - unless rule_id - warn 'Found legacy Hyperstack firewall rule for port 4000, but the API payload has no rule id; remove it manually from the Hyperstack console.' - next - end - - info "Removing legacy Hyperstack firewall rule #{rule['protocol']} #{rule['remote_ip_prefix']} #{rule['port_range_min']}..." - @client.delete_vm_rule(vm['id'], rule_id) - rescue Error => e - warn "Failed to remove legacy Hyperstack firewall rule #{rule_id}: #{e.message}" - end - end - - def ollama_setup_needed?(state) - return false unless effective_ollama? - # Re-run setup if state has no record, or if desired models changed - return true if state['ollama_setup_at'].nil? - - @scripts.model_list_signature(@scripts.desired_ollama_models) != - @scripts.model_list_signature(state['ollama_pulled_models']) - end - - def wireguard_setup_needed?(state) - return false unless @config.wireguard_auto_setup? - - public_ip = state['public_ip'].to_s.strip - return true if public_ip.empty? - - expected_endpoint = "#{public_ip}:#{@config.wireguard_udp_port}" - !Array(@local_wireguard.status['endpoints']).include?(expected_endpoint) - end - - def run_wireguard_setup(host) - validate_wireguard_setup_script! - retries = 3 - retries.times do |attempt| - info "Running WireGuard auto-setup via #{@config.wireguard_setup_script} #{host}..." - - status = run_wireguard_script(host) - return if status.success? - - if attempt == retries - 1 - raise Error, "WireGuard setup failed after #{retries} attempts (exit #{status.exitstatus})." - end - - delay = (attempt + 1) * 15 - warn "WireGuard setup attempt #{attempt + 1}/#{retries} failed (exit #{status.exitstatus}), retrying in #{delay}s..." - sleep delay - end - end - - def run_wireguard_script(host) - # Pass server WireGuard IP and WireGuard hostname as positional args so that - # wg1-setup.sh can configure the correct server-side tunnel address and update - # /etc/hosts on the client. The Enter keystroke via stdin bypasses the interactive prompt. - server_ip = @config.wireguard_gateway_ip - wg_hostname = @config.wireguard_gateway_hostname - env = { - 'HYPERSTACK_SSH_PORT' => @config.ssh_port.to_s, - 'HYPERSTACK_SSH_CONNECT_TIMEOUT' => @config.ssh_connect_timeout.to_s, - 'HYPERSTACK_SSH_KNOWN_HOSTS_PATH' => @config.ssh_known_hosts_path, - 'HYPERSTACK_SSH_PRIVATE_KEY_PATH' => (File.exist?(@config.ssh_private_key_path) ? @config.ssh_private_key_path : '') - } - - Open3.popen2e(env, 'bash', @config.wireguard_setup_script, host, server_ip, - wg_hostname) do |stdin, output, wait_thr| - stdin.sync = true - stdin.puts - stdin.close - - output.each { |line| @out.print(line) } - wait_thr.value - end - end - - def wait_for_deletion(vm_id) - info "Waiting for VM #{vm_id} deletion to complete..." - with_polling("VM #{vm_id} deletion", timeout: 300) do - @client.get_vm(vm_id) - nil - rescue Error => e - raise unless e.message.include?('not_found') || e.message.include?('does not exists') - - true - end - end - - def connect_host_for(vm) - return vm['floating_ip'] if @config.assign_floating_ip? - - vm['floating_ip'] || vm['fixed_ip'] - end - - def validate_wireguard_setup_script! - script_path = @config.wireguard_setup_script - raise Error, "WireGuard setup script not found: #{script_path}" unless File.exist?(script_path) - - mismatches = [] - mismatches << "ssh.username must be 'ubuntu'" unless @config.ssh_username == 'ubuntu' - mismatches << "local_client.interface_name must be 'wg1'" unless @config.local_interface_name == 'wg1' - mismatches << 'network.wireguard_udp_port must be 56710' unless @config.wireguard_udp_port == 56_710 - unless @config.wireguard_subnet == '192.168.3.0/24' - mismatches << "network.wireguard_subnet must be '192.168.3.0/24'" - end - - # Validate that the resolved server IP is actually within the configured subnet. - begin - subnet = IPAddr.new(@config.wireguard_subnet) - server_ip = IPAddr.new(@config.wireguard_gateway_ip) - unless subnet.include?(server_ip) - mismatches << "wireguard_server_ip #{@config.wireguard_gateway_ip.inspect} is outside #{@config.wireguard_subnet}" - end - rescue IPAddr::InvalidAddressError => e - mismatches << "Invalid wireguard_server_ip: #{e.message}" - end - - return if mismatches.empty? - - raise Error, "Configured WireGuard settings do not match #{script_path}: #{mismatches.join('; ')}" - end - - def ensure_trusted_ssh_host(host) - scanned = scan_ssh_host_keys(host) - return false if scanned.empty? - - existing = known_host_entries - if existing.empty? - write_known_host_entries(scanned) - info "Pinned SSH host key for #{host} in #{@config.ssh_known_hosts_path}." - return true - end - - return true if existing == scanned - - raise Error, - "SSH host key mismatch for #{host}. Refusing to continue. Delete #{@config.ssh_known_hosts_path} only if you intentionally replaced this VM." - end - - def scan_ssh_host_keys(host) - stdout, stderr, status = Open3.capture3('ssh-keyscan', '-T', @config.ssh_connect_timeout.to_s, - '-p', @config.ssh_port.to_s, host) - unless status.success? - warn "ssh-keyscan not ready yet: #{stderr.strip}" unless stderr.to_s.strip.empty? - return [] - end - - stdout.lines.map(&:strip).reject { |line| line.empty? || line.start_with?('#') }.sort.uniq - rescue Errno::ENOENT - raise Error, 'ssh-keyscan is required to pin SSH host keys but was not found in PATH.' - end - - def known_host_entries - path = @config.ssh_known_hosts_path - return [] unless File.exist?(path) - - File.readlines(path, chomp: true).map(&:strip).reject(&:empty?).sort.uniq - rescue Errno::EACCES => e - raise Error, "Cannot read SSH known_hosts file #{path}: #{e.message}" - end - - def write_known_host_entries(entries) - path = @config.ssh_known_hosts_path - FileUtils.mkdir_p(File.dirname(path)) - temp_path = "#{path}.tmp" - File.write(temp_path, "#{entries.join("\n")}\n") - File.chmod(0o600, temp_path) - File.rename(temp_path, path) - rescue Errno::EACCES => e - raise Error, "Cannot write SSH known_hosts file #{path}: #{e.message}" - end - - def delete_ssh_known_hosts_file - File.delete(@config.ssh_known_hosts_path) if File.exist?(@config.ssh_known_hosts_path) - rescue Errno::EACCES => e - raise Error, "Cannot delete SSH known_hosts file #{@config.ssh_known_hosts_path}: #{e.message}" - end - - def failed_vm?(vm) - [vm['status'], vm['vm_state'], vm['power_state']].compact.any? do |value| - value.to_s.downcase.match?(/error|failed|deleted|shelved/) - end - end - - def vm_ready_for_updates?(vm) - %w[ACTIVE SHUTOFF HIBERNATED].include?(vm['status'].to_s.upcase) - end - - def tcp_open?(host, port) - Socket.tcp(host, port, connect_timeout: @config.ssh_connect_timeout) do |sock| - sock.close - true - end - rescue Errno::ECONNREFUSED, Errno::ETIMEDOUT, Errno::EHOSTUNREACH, Errno::ENETUNREACH, SocketError, IOError - false - end - - def run_ssh_command(host, remote_script) - Open3.capture3(*ssh_command(host), stdin_data: remote_script) - end - - def run_ssh_command_streaming(host, remote_script) - combined_output = +'' - Open3.popen2e(*ssh_command(host)) do |stdin, output, wait_thr| - stdin.write(remote_script) - stdin.close - - output.each do |line| - combined_output << line - @out.print(line) - end - - return [combined_output, wait_thr.value] - end - end - - def ssh_command(host) - command = [ - 'ssh', - '-o', 'BatchMode=yes', - '-o', 'StrictHostKeyChecking=yes', - '-o', "UserKnownHostsFile=#{@config.ssh_known_hosts_path}", - '-o', "ConnectTimeout=#{@config.ssh_connect_timeout}", - '-p', @config.ssh_port.to_s - ] - if File.exist?(@config.ssh_private_key_path) - command.concat(['-i', @config.ssh_private_key_path]) - else - warn "SSH private key #{@config.ssh_private_key_path} does not exist; falling back to default ssh-agent identity." - end - - command << "#{@config.ssh_username}@#{host}" - command << 'bash -se' - command - end - - def with_polling(description, timeout: 900, interval: 5) - deadline = Time.now + timeout - loop do - result = yield - return result if result - - raise Error, "Timed out waiting for #{description}." if Time.now >= deadline - - sleep interval - end - end - - def normalize_rule(rule) - { - 'direction' => rule['direction'].to_s.downcase, - 'ethertype' => rule['ethertype'].to_s, - 'protocol' => rule['protocol'].to_s.downcase, - 'port_range_min' => integer_or_nil(rule['port_range_min']), - 'port_range_max' => integer_or_nil(rule['port_range_max']), - 'remote_ip_prefix' => rule['remote_ip_prefix'].to_s - } - end - - def sync_service_mode_state(state) - state['services'] = { - 'vllm_enabled' => effective_vllm?, - 'ollama_enabled' => effective_ollama?, - 'comfyui_enabled' => effective_comfyui? - } - end - - def desired_security_rules(include_vllm: effective_vllm?, include_ollama: effective_ollama?, - include_comfyui: effective_comfyui?) - @config.desired_security_rules(include_vllm: include_vllm, include_ollama: include_ollama, - include_comfyui: include_comfyui) - end - - def desired_security_rules_for_state(state) - desired_security_rules(include_vllm: state_vllm_enabled?(state), - include_ollama: state_ollama_enabled?(state), - include_comfyui: state_comfyui_enabled?(state)) - end - - def legacy_litellm_rules(rules) - Array(rules).select do |rule| - normalized = normalize_rule(rule) - normalized['protocol'] == 'tcp' && - normalized['port_range_min'] == 4000 && - normalized['port_range_max'] == 4000 && - normalized['remote_ip_prefix'] == @config.wireguard_subnet - end - end - - def state_vllm_enabled?(state) - recorded = state&.dig('services', 'vllm_enabled') - return recorded unless recorded.nil? - - return true if state&.key?('vllm_setup_at') - - @config.vllm_install_enabled? - end - - def state_ollama_enabled?(state) - recorded = state&.dig('services', 'ollama_enabled') - return recorded unless recorded.nil? - - return true if state&.key?('ollama_installed_at') || state&.key?('ollama_setup_at') - - @config.ollama_install_enabled? - end - - def state_comfyui_enabled?(state) - recorded = state&.dig('services', 'comfyui_enabled') - return recorded unless recorded.nil? - - return true if state&.key?('comfyui_setup_at') - - @config.comfyui_install_enabled? - end - - def service_mode_summary(vllm_enabled:, ollama_enabled:, comfyui_enabled: false) - parts = [] - parts << 'vLLM' if vllm_enabled - parts << 'Ollama' if ollama_enabled - parts << 'ComfyUI' if comfyui_enabled - return 'All inference services disabled' if parts.empty? - - "#{parts.join(', ')} enabled" - end - - def cleanup_local_access(dry_run:, hostnames:, allowed_ips:) - { - peers: @local_wireguard.remove_peers_by_allowed_ips(allowed_ips, dry_run: dry_run), - hostnames: @local_wireguard.remove_hostnames(hostnames, dry_run: dry_run) - } - end - - def report_local_cleanup(output, cleanup, dry_run:) - peer_summary = cleanup[:peers].map { |peer| peer['AllowedIPs'] || peer['Endpoint'] }.join(', ') - host_summary = cleanup[:hostnames].join(', ') - - if dry_run - if cleanup[:peers].empty? && cleanup[:hostnames].empty? - output.puts('DRY RUN: no matching local WireGuard peers or host entries would be removed.') - return - end - - unless cleanup[:peers].empty? - output.puts("DRY RUN: local WireGuard peers would be removed for #{peer_summary}.") - end - unless cleanup[:hostnames].empty? - output.puts("DRY RUN: local host entries would be removed for #{host_summary}.") - end - return - end - - output.puts('No matching local WireGuard peers needed removal.') if cleanup[:peers].empty? - output.puts('No matching local host entries needed removal.') if cleanup[:hostnames].empty? - output.puts("Local WireGuard peers removed for #{peer_summary}.") unless cleanup[:peers].empty? - output.puts("Local host entries removed for #{host_summary}.") unless cleanup[:hostnames].empty? - end - - def print_create_dry_run(vm_name, resolved, payload) - info 'DRY RUN: no VM or state file will be created.' - info "State file: #{@state_store.path}" - info "Resolved environment: #{resolved[:environment]['name']} (region #{resolved[:environment]['region']})" - info "Resolved flavor: #{format_flavor(resolved[:flavor])}" - info "Resolved image: #{resolved[:image]['name']}" - info "Resolved SSH keypair: #{resolved[:keypair]['name']}" - info "Planned VM name: #{vm_name}" - info "Allowed SSH CIDRs: #{@config.allowed_ssh_cidrs.join(', ')}" - info "Allowed WireGuard CIDRs: #{@config.allowed_wireguard_cidrs.join(', ')}" - info 'Create payload:' - @out.puts(JSON.pretty_generate(payload)) - if @config.guest_bootstrap_enabled? - info 'Guest bootstrap script:' - @out.puts(@scripts.guest_bootstrap_script) - else - info 'Guest bootstrap is disabled in config.' - end - if effective_ollama? - info "Ollama will be installed with models stored under #{@config.ollama_models_dir}" - models = @scripts.desired_ollama_models - info "Ollama models to pre-pull: #{models.join(', ')}" unless models.empty? - end - if effective_vllm? - preset_cfg = effective_vllm_preset_config - vllm_m = preset_cfg&.dig('model') || @config.vllm_model - vllm_cname = preset_cfg&.dig('container_name') || @config.vllm_container_name - vllm_maxlen = preset_cfg&.dig('max_model_len') || @config.vllm_max_model_len - preset_note = @effective_vllm_preset ? " (preset: #{@effective_vllm_preset})" : '' - info "vLLM will be installed: #{vllm_m}#{preset_note}" - info " Container: #{vllm_cname}, port #{@config.ollama_port}, max_model_len #{vllm_maxlen}" - end - if @config.wireguard_auto_setup? - info "WireGuard auto-setup script: #{@config.wireguard_setup_script} <vm_public_ip>" - end - print_local_wireguard_summary(nil) - end - - def print_resume_dry_run(state) - info "DRY RUN: would resume provisioning tracked VM #{state['vm_id']}." - begin - vm = @client.get_vm(state['vm_id']) - info "Tracked VM status: #{vm['status']} / #{vm['vm_state']}" - info "Tracked VM public IP: #{connect_host_for(vm) || 'none'}" - rescue Error => e - warn "Unable to inspect tracked VM #{state['vm_id']}: #{e.message}" - end - if @config.guest_bootstrap_enabled? - info 'Guest bootstrap script:' - @out.puts(@scripts.guest_bootstrap_script) - end - if ollama_setup_needed?(state) - info "Ollama would be installed with models stored under #{@config.ollama_models_dir}" - models = @scripts.desired_ollama_models - info "Ollama models to pre-pull: #{models.join(', ')}" unless models.empty? - end - info "vLLM would be installed: #{@config.vllm_model}" if vllm_setup_needed?(state) - if wireguard_setup_needed?(state) - info "WireGuard auto-setup script would run: #{@config.wireguard_setup_script} #{state['public_ip'] || '<pending-public-ip>'}" - end - print_local_wireguard_summary(state['public_ip']) - end - - def print_delete_dry_run(target_vm_id, state, preserve_state_on_failure:) - info 'DRY RUN: no VM will be deleted.' - begin - vm = @client.get_vm(target_vm_id) - info "Delete target: #{target_vm_id} #{vm['name']} (#{vm['status']} / #{vm['vm_state']})" - info "Delete target public IP: #{connect_host_for(vm) || 'none'}" - rescue Error => e - warn "Unable to inspect VM #{target_vm_id} before delete: #{e.message}" - end - - if state && state['vm_id'].to_i == target_vm_id.to_i - action = preserve_state_on_failure ? 'would remain unchanged' : 'would be removed' - info "Tracked state file #{@state_store.path} #{action}." - cleanup = cleanup_local_access(dry_run: true, hostnames: [@config.wireguard_gateway_hostname], - allowed_ips: ["#{@config.wireguard_gateway_ip}/32"]) - report_local_cleanup(@out, cleanup, dry_run: true) - else - info 'No tracked state entry would be modified.' - end - end - - def format_flavor(flavor) - gpu = flavor['gpu'].to_s.empty? ? 'CPU-only' : flavor['gpu'] - [ - flavor['name'], - gpu, - "#{flavor['gpu_count']} GPU", - "#{flavor['ram']} GB RAM", - "#{flavor['cpu']} vCPU", - "stock=#{flavor['stock_available']}" - ].join(', ') - end - - # Returns the effective Ollama flag: CLI override if set, else config default. - def effective_ollama? - defined?(@effective_ollama) ? @effective_ollama : @config.ollama_install_enabled? - end - - # Returns the effective vLLM flag: CLI override if set, else config default. - def effective_vllm? - defined?(@effective_vllm) ? @effective_vllm : @config.vllm_install_enabled? - end - - # Returns the resolved preset config hash when a preset was selected via - # --model, or nil when using the top-level [vllm] defaults directly. - def effective_vllm_preset_config - name = defined?(@effective_vllm_preset) ? @effective_vllm_preset : nil - return nil unless name - - @config.vllm_preset(name) - end - - def vllm_setup_needed?(state) - return false unless effective_vllm? - return true if state['vllm_setup_at'].nil? - - # Re-run if the active model changed (direct config edit or --model preset flag). - desired = effective_vllm_preset_config&.dig('model') || @config.vllm_model - state['vllm_model'] != desired - end - - # Returns the effective ComfyUI flag: CLI override if set, else config default. - def effective_comfyui? - defined?(@effective_comfyui) ? @effective_comfyui : @config.comfyui_install_enabled? - end - - def comfyui_setup_needed?(state) - return false unless effective_comfyui? - return true if state['comfyui_setup_at'].nil? - - # Re-run if the desired model list changed since last provision. - (@config.comfyui_models.sort != Array(state['comfyui_models']).sort) - end - - # Tests the vLLM OpenAI-compatible API: lists loaded models and runs a - # short inference request to confirm the model accepts requests. - def test_vllm(wg_ip) - port = @config.ollama_port - - info " Testing vLLM models list at http://#{wg_ip}:#{port}/v1/models..." - uri = URI("http://#{wg_ip}:#{port}/v1/models") - resp = Net::HTTP.get_response(uri) - raise Error, "vLLM /v1/models returned HTTP #{resp.code}" unless resp.code == '200' - - models = JSON.parse(resp.body).fetch('data', []).map { |m| m['id'] } - raise Error, 'vLLM returned an empty model list' if models.empty? - - # Use the currently loaded model (may differ from config default after a switch). - model = models.first - info " Models loaded: #{models.join(', ')}" - info ' Testing vLLM inference...' - reply = vllm_chat(wg_ip, port, model, 'Say hello in five words.') - info " vLLM response: #{reply}" - rescue Errno::ECONNREFUSED, Errno::EHOSTUNREACH, SocketError => e - raise Error, "Cannot reach vLLM at #{wg_ip}:#{port} — is WireGuard (wg1) active? (#{e.message})" - end - - # Sends a single OpenAI chat completion request and returns the reply text. - def vllm_chat(host, port, model, prompt) - uri = URI("http://#{host}:#{port}/v1/chat/completions") - req = Net::HTTP::Post.new(uri) - req['Content-Type'] = 'application/json' - req['Authorization'] = 'Bearer EMPTY' - req.body = JSON.generate( - 'model' => model, - 'messages' => [{ 'role' => 'user', 'content' => prompt }], - # 500 tokens: reasoning models (e.g. gpt-oss) use tokens for chain-of-thought - # before content; 50 is too small and yields an empty content field. - 'max_tokens' => 500 - ) - resp = Net::HTTP.start(uri.host, uri.port, open_timeout: 10, read_timeout: 120) { |h| h.request(req) } - raise Error, "vLLM inference returned HTTP #{resp.code}" unless resp.code == '200' - - JSON.parse(resp.body).dig('choices', 0, 'message', 'content').to_s.strip - end - - def integer_or_nil(value) - value.nil? ? nil : Integer(value) - end - - def print_local_wireguard_summary(expected_ips) - return unless @config.local_client_checks_enabled? - - wg_status = @local_wireguard.status - endpoints = Array(wg_status['endpoints']).compact.uniq - info "Local WireGuard #{@config.local_interface_name}: #{wg_status['service_state']}" - if endpoints.empty? - if wg_status['config_readable'] - info 'Local WireGuard has no configured peers.' - else - warn "Unable to read #{@config.local_wg_config_path} for local WireGuard endpoint validation." - end - return - end - - label = endpoints.one? ? 'endpoint' : 'endpoints' - info "Local WireGuard #{label}: #{endpoints.join(', ')}" - - expected = Array(expected_ips).compact.map(&:to_s).map(&:strip).reject(&:empty?).uniq - return if expected.empty? - - expected_endpoints = expected.map { |ip| "#{ip}:#{@config.wireguard_udp_port}" } - missing = expected_endpoints.reject { |endpoint| endpoints.include?(endpoint) } - - if expected_endpoints.one? - if missing.empty? - info 'Local WireGuard endpoint matches the managed VM IP.' - else - hosts = endpoints.map { |endpoint| endpoint.split(':', 2).first }.uniq - warn "Local WireGuard endpoints point to #{hosts.join(', ')}, expected #{expected.first}." - end - return - end - - if missing.empty? - info 'Local WireGuard has peers for all managed VM IPs.' - else - present = expected_endpoints - missing - unless present.empty? - info "Local WireGuard has peers for: #{present.map do |endpoint| - endpoint.split(':', 2).first - end.join(', ')}" - end - warn "Local WireGuard missing peers for: #{missing.map { |endpoint| endpoint.split(':', 2).first }.join(', ')}." - end - end - - def info(message) - @out.puts(message) - end - - def warn(message) - @out.puts("WARN: #{message}") - end - end - - # Continuously polls all active VMs for vLLM Prometheus metrics (over HTTP/WireGuard) - # and GPU stats (over SSH) and redraws a compact terminal dashboard every 60 seconds. - class VllmWatcher - REFRESH_INTERVAL = 5 - - # ANSI escape helpers - BOLD = "\033[1m" - DIM = "\033[2m" - GREEN = "\033[32m" - YELLOW = "\033[33m" - CYAN = "\033[36m" - RED = "\033[31m" - RESET = "\033[0m" - CLEAR = "\033[2J\033[H" - - # Snapshot of one VM's stats at a point in time. - # service_type is :vllm or :comfyui — controls which metrics section is rendered. - VmSnapshot = Struct.new( - :label, :wg_host, :service_type, - :vllm_model, :container_name, - :metrics, :gpus, - :vllm_error, :gpu_error, - :fetched_at, - keyword_init: true - ) - - # Parsed per-GPU row from nvidia-smi. - GpuInfo = Struct.new( - :index, :name, :temp_c, :util_pct, :power_w, - :mem_used_mib, :mem_total_mib, - keyword_init: true - ) - - def initialize(config_loaders:) - @config_loaders = config_loaders - end - - # Runs the watch loop until the user presses Ctrl-C. - def run - $stdout.print "\033[?25l" # hide cursor - loop do - snapshots = fetch_all_parallel - draw(snapshots) - sleep REFRESH_INTERVAL - end - rescue Interrupt - nil - ensure - $stdout.print "\033[?25h\n" # restore cursor - end - - private - - # Fetches stats for every VM concurrently and returns an array of VmSnapshot. - def fetch_all_parallel - threads = @config_loaders.map { |loader| Thread.new { fetch_vm(loader) } } - threads.map(&:value) - end - - # Fetches GPU stats and service stats for a single VM via one SSH session. - # Routes to fetch_comfyui_vm or fetch_vllm_vm based on config. - def fetch_vm(loader) - config = loader.config - label = File.basename(loader.path, '.toml') - wg_host = config.wireguard_gateway_hostname - state = load_state(config.state_file) - - unless state - svc = config.comfyui_install_enabled? ? :comfyui : :vllm - return VmSnapshot.new(label: label, wg_host: wg_host, service_type: svc, - vllm_model: nil, container_name: nil, - metrics: nil, gpus: nil, - vllm_error: 'no state file', gpu_error: nil, - fetched_at: Time.now) - end - - if config.comfyui_install_enabled? - fetch_comfyui_vm(config, label, wg_host) - else - fetch_vllm_vm(config, label, wg_host, state) - end - rescue StandardError => e - VmSnapshot.new(label: label || '?', wg_host: wg_host || '?', service_type: :vllm, - vllm_model: nil, container_name: nil, - metrics: nil, gpus: nil, - vllm_error: e.message, gpu_error: nil, - fetched_at: Time.now) - end - - # Fetches GPU + vLLM container stats for a vLLM VM. - def fetch_vllm_vm(config, label, wg_host, state) - vllm_model = state['vllm_model'] || config.vllm_model - container_name = state['vllm_container_name'] || config.vllm_container_name - - gpus, metrics, ssh_error = fetch_vm_stats(config, wg_host, container_name) - - VmSnapshot.new(label: label, wg_host: wg_host, service_type: :vllm, - vllm_model: vllm_model, container_name: container_name, - metrics: metrics, gpus: gpus, - vllm_error: ssh_error, gpu_error: ssh_error, - fetched_at: Time.now) - end - - # Fetches GPU + ComfyUI queue stats for a ComfyUI VM. - # Returns queue running/pending counts and total outputs produced so far. - def fetch_comfyui_vm(config, label, wg_host) - gpus, metrics, ssh_error = fetch_comfyui_stats(config, wg_host, config.comfyui_port) - - VmSnapshot.new(label: label, wg_host: wg_host, service_type: :comfyui, - vllm_model: nil, container_name: nil, - metrics: metrics, gpus: gpus, - vllm_error: ssh_error, gpu_error: ssh_error, - fetched_at: Time.now) - end - - def load_state(path) - JSON.parse(File.read(path)) - rescue Errno::ENOENT, JSON::ParserError - nil - end - - # Single SSH call: nvidia-smi + ComfyUI queue + output file count. - # Sections separated by sentinel lines so we can split the output cleanly. - # Returns [gpus, metrics_hash, error_or_nil]. - def fetch_comfyui_stats(config, wg_host, port) - gpu_query = 'index,name,temperature.gpu,utilization.gpu,power.draw,memory.used,memory.total' - script = <<~BASH - nvidia-smi --query-gpu=#{gpu_query} --format=csv,noheader,nounits - echo ===COMFYUI=== - curl -s http://localhost:#{port}/queue 2>/dev/null - echo - echo ===HISTORY=== - curl -s http://localhost:#{port}/history 2>/dev/null | python3 -c \ - "import json,sys; h=json.load(sys.stdin); print(len(h))" 2>/dev/null || echo 0 - BASH - - ssh = build_ssh_command(config, wg_host) - stdout, stderr, status = Timeout.timeout(15) { Open3.capture3(*ssh, stdin_data: script) } - return [nil, nil, "exit #{status.exitstatus}: #{stderr.strip}"] unless status.success? - - gpu_section, rest = stdout.split("===COMFYUI===\n", 2) - queue_section, hist_section = rest.to_s.split("===HISTORY===\n", 2) - gpus = parse_nvidia_smi(gpu_section.to_s) - metrics = parse_comfyui_queue(queue_section.to_s.strip, hist_section.to_s.strip) - [gpus, metrics, nil] - end - - # Parse ComfyUI /queue JSON into a plain Hash. - def parse_comfyui_queue(queue_json, history_count_str) - q = begin - JSON.parse(queue_json) - rescue StandardError - {} - end - { - 'queue_running' => Array(q['queue_running']).size, - 'queue_pending' => Array(q['queue_pending']).size, - 'history_count' => history_count_str.to_i - } - end - - # Single SSH call that runs nvidia-smi and tails the vLLM container logs. - # The two sections are separated by a sentinel line so we can split them. - # Returns [gpus, metrics, error_or_nil]. - def fetch_vm_stats(config, wg_host, container_name) - gpu_query = 'index,name,temperature.gpu,utilization.gpu,power.draw,memory.used,memory.total' - # --tail 200 instead of --since N so we always get the last stats line - # even when the VM has been idle for longer than the refresh interval. - script = <<~BASH - nvidia-smi --query-gpu=#{gpu_query} --format=csv,noheader,nounits - echo ===VLLM=== - docker logs --tail 200 #{container_name} 2>&1 | grep 'Engine 0' | tail -1 - BASH - - ssh = build_ssh_command(config, wg_host) - stdout, stderr, status = Timeout.timeout(15) { Open3.capture3(*ssh, stdin_data: script) } - return [nil, nil, "exit #{status.exitstatus}: #{stderr.strip}"] unless status.success? - - gpu_section, vllm_section = stdout.split("===VLLM===\n", 2) - gpus = parse_nvidia_smi(gpu_section.to_s) - metrics = parse_engine_log_line(vllm_section.to_s.strip) - [gpus, metrics, nil] - end - - # Parse a vLLM "Engine 0" log line into a plain Hash. - # Actual log format (loggers.py): - # (APIServer pid=1) INFO ... [loggers.py:259] Engine 000: - # Avg prompt throughput: 6154.6 tokens/s, - # Avg generation throughput: 27.4 tokens/s, - # Running: 1 reqs, Waiting: 0 reqs, - # GPU KV cache usage: 0.7%, Prefix cache hit rate: 0.0% - # Returns an empty hash when no matching line was found (container still loading). - def parse_engine_log_line(line) - return {} if line.empty? - - { - 'avg_prompt_throughput' => extract_float(line, /Avg prompt throughput:\s*([\d.]+)/), - 'avg_generation_throughput' => extract_float(line, /Avg generation throughput:\s*([\d.]+)/), - 'running' => extract_float(line, /Running:\s*(\d+)\s*reqs/), - 'pending' => extract_float(line, /Waiting:\s*(\d+)\s*reqs/), - 'swapped' => extract_float(line, /Swapped:\s*(\d+)\s*reqs/), - 'gpu_cache_usage_pct' => extract_float(line, /GPU KV cache usage:\s*([\d.]+)%/), - 'gpu_prefix_cache_hit_rate_pct' => extract_float(line, /Prefix cache hit rate:\s*([\d.]+)%/) - }.compact - end - - def extract_float(text, pattern) - m = text.match(pattern) - m ? m[1].to_f : nil - end - - # Build an SSH command array for the watcher. - # Uses accept-new rather than yes because the known-hosts file was populated - # with the VM's public IP during provisioning; the WireGuard hostname - # (hyperstack1.wg1 etc.) won't be in it yet. accept-new auto-trusts the first - # connection and caches the key — safe here because we're connecting over the - # already-authenticated WireGuard tunnel. - def build_ssh_command(config, host) - cmd = [ - 'ssh', - '-o', 'BatchMode=yes', - '-o', 'StrictHostKeyChecking=accept-new', - '-o', "UserKnownHostsFile=#{config.ssh_known_hosts_path}", - '-o', "ConnectTimeout=#{config.ssh_connect_timeout}", - '-p', config.ssh_port.to_s - ] - key = config.ssh_private_key_path - cmd.concat(['-i', key]) if File.exist?(key) - cmd << "#{config.ssh_username}@#{host}" - cmd << 'bash -se' - cmd - end - - def parse_nvidia_smi(text) - text.lines.filter_map do |line| - parts = line.strip.split(',').map(&:strip) - next if parts.length < 7 - - GpuInfo.new( - index: parts[0].to_i, - name: parts[1], - temp_c: parts[2].to_f, - util_pct: parts[3].to_f, - power_w: parts[4].to_f, - mem_used_mib: parts[5].to_f, - mem_total_mib: parts[6].to_f - ) - end - end - - # ── Rendering ──────────────────────────────────────────────────────────── - - # Clears the screen and redraws the full dashboard for all VMs. - def draw(snapshots) - time_str = Time.now.strftime('%H:%M:%S') - header = "#{BOLD}#{CYAN}VM watch#{RESET} " \ - "#{DIM}#{time_str} Ctrl-C to stop " \ - "refreshing every #{REFRESH_INTERVAL}s#{RESET}" - - panels = snapshots.map { |snap| render_vm(snap) } - - if panels.size >= 2 - # Lay out VM panels side-by-side, padding each to its own visible width - # so the separator column stays aligned regardless of content length. - panel_widths = panels.map { |p| p.map { |l| strip_ansi(l).length }.max.to_i } - max_rows = panels.map(&:size).max - panels.each { |p| p.fill('', p.size...max_rows) } - sep = " #{DIM}│#{RESET} " - - panel_lines = (0...max_rows).map do |i| - panels.each_with_index.map do |panel, j| - cell = panel[i] || '' - # Pad every column except the last so the separator stays in column. - next cell if j == panels.size - 1 - - visible_len = strip_ansi(cell).length - cell + ' ' * [panel_widths[j] - visible_len, 0].max - end.join(sep) - end - - rule_w = [strip_ansi(panel_lines.first || '').length, 72].max - rule = DIM + ('─' * rule_w) + RESET - lines = [header, rule, *panel_lines, ''] - else - # Single VM: simple vertical layout. - rule = DIM + ('─' * 72) + RESET - lines = [header, rule] - panels.each do |p| - lines << '' - lines.concat(p) - end - lines << '' - end - - $stdout.write(CLEAR + lines.join("\n")) - $stdout.flush - end - - # Width of the label column used in every metric row, keeping bars aligned. - LABEL_W = 10 - - # Renders a single VM panel as an array of strings (one per display line). - # Routes the service-specific metrics section based on service_type. - def render_vm(snap) - lines = [] - - svc_label = snap.service_type == :comfyui ? "#{DIM}ComfyUI#{RESET}" : '' - model_label = snap.vllm_model ? DIM + snap.vllm_model.split('/').last + RESET : svc_label - lines << "#{BOLD}#{snap.label}#{RESET} #{DIM}#{snap.wg_host}#{RESET} #{model_label}" - - # Both GPU and service stats come from the same SSH call; show one error if it failed. - if snap.gpu_error - lines << " #{RED}#{snap.gpu_error}#{RESET}" - else - snap.gpus&.each do |gpu| - mem_pct = gpu.mem_total_mib > 0 ? (gpu.mem_used_mib / gpu.mem_total_mib * 100.0) : 0.0 - lines << format(' GPU%-2d %-26s %3.0f°C %5.0fW', - gpu.index, gpu.name, gpu.temp_c, gpu.power_w) - lines << bar_row('util', gpu.util_pct) - lines << bar_row('VRAM', mem_pct) - end - if snap.service_type == :comfyui - lines.concat(render_comfyui_metrics(snap.metrics)) - elsif snap.metrics&.any? - lines.concat(render_vllm_metrics(snap.metrics)) - elsif snap.metrics && snap.metrics.empty? - lines << " #{DIM}(no Engine log line yet — container may still be loading)#{RESET}" - end - end - - lines - end - - # Formats ComfyUI queue stats into display lines. - def render_comfyui_metrics(m) - return [" #{DIM}(no ComfyUI stats)#{RESET}"] unless m&.any? - - running = m['queue_running'].to_i - pending = m['queue_pending'].to_i - history = m['history_count'].to_i - - q_str = running > 0 ? "#{GREEN}#{running} running#{RESET}" : "#{DIM}idle#{RESET}" - q_str += " #{pending} queued" if pending > 0 - [ - row('queue', q_str), - row('completed', "#{history} jobs total") - ] - end - - # Formats the vLLM engine log stats into display lines. - # All values come directly from the "Engine 0" log line that vLLM emits - # every few seconds, so tok/s figures are the rolling averages vLLM computes - # internally — no client-side rate derivation needed. - def render_vllm_metrics(m) - lines = [] - - # Throughput: rolling averages already computed by vLLM - prefill_tps = m['avg_prompt_throughput'] - decode_tps = m['avg_generation_throughput'] - tput_parts = [] - tput_parts << "prefill #{format('%.1f', prefill_tps)} tok/s" if prefill_tps - tput_parts << "decode #{format('%.1f', decode_tps)} tok/s" if decode_tps - lines << row('throughput', tput_parts.empty? ? 'n/a' : tput_parts.join(' ')) - - # Request queue depth - running = m['running'] - swapped = m['swapped'] - pending = m['pending'] - q_parts = [] - q_parts << "#{running.to_i} running" if running - q_parts << "#{pending.to_i} waiting" if pending - q_parts << "#{swapped.to_i} swapped" if swapped && swapped > 0 - lines << row('requests', q_parts.empty? ? 'n/a' : q_parts.join(' ')) - - # KV-cache fill and prefix-cache hit rate, each with an aligned bar - gpu_cache = m['gpu_cache_usage_pct'] - hit_rate_gpu = m['gpu_prefix_cache_hit_rate_pct'] - lines << bar_row('KV cache', gpu_cache) if gpu_cache - lines << bar_row('cache hits', hit_rate_gpu) if hit_rate_gpu - - lines - end - - # Formats one metric row: fixed-width label then value, giving all rows the same indent. - def row(label, value) - " #{label.ljust(LABEL_W)} #{value}" - end - - # Formats one bar row: fixed-width label, proportional bar, percentage number. - # All bar rows share the same column for '[', aligning bars across GPU and vLLM sections. - def bar_row(label, pct) - row(label, "#{pct_bar(pct, 10)} #{format('%5.1f', pct)}%") - end - - # Renders a proportional bar for any percentage (0–100). - # Colour: green below 50%, yellow 50–79%, red 80%+. - def pct_bar(pct, width) - filled = [(pct / 100.0 * width).round, width].min - color = if pct >= 80 - RED - else - pct >= 50 ? YELLOW : GREEN - end - "[#{color}#{'█' * filled}#{RESET}#{' ' * (width - filled)}]" - end - - # Strips ANSI escape sequences to measure the visible length of a string. - def strip_ansi(str) - str.gsub(/\033\[[0-9;]*m/, '') - end - - # Formats an integer with thousands separators, e.g. 1234567 → "1,234,567". - def fmt_num(n) - n.to_i.to_s.reverse.scan(/\d{1,3}/).join(',').reverse - end - end - - class CLI - def initialize(argv) - @argv = argv.dup - @config_path = File.join(__dir__, 'hyperstack-vm.toml') - @config_explicit = false - end - - def show_help - puts @global_parser - puts - puts 'Commands:' - puts ' create [--replace] [--dry-run] [--vllm|--no-vllm] [--ollama|--no-ollama] [--model PRESET]' - puts ' create-both [--replace] [--dry-run] [--vllm|--no-vllm] [--ollama|--no-ollama]' - puts ' Provision hyperstack-vm1-gptoss.toml and hyperstack-vm2.toml concurrently.' - puts ' WireGuard setup is serialized: VM1 writes the base wg1.conf first,' - puts ' then VM2 adds its peer. Requires both TOML files next to the script.' - puts ' delete [--vm-id ID] [--dry-run]' - puts ' delete-both [--dry-run]' - puts ' Delete the VMs tracked by hyperstack-vm1-gptoss.toml and hyperstack-vm2.toml.' - puts ' status' - puts ' watch' - puts ' Poll all active VMs for vLLM and GPU stats every 60 s.' - puts ' test' - puts ' model list' - puts ' model switch PRESET [--dry-run]' - end - - def run - @global_parser = OptionParser.new do |opts| - opts.banner = 'Usage: ruby hyperstack.rb [--config path] <create|delete|status> [options]' - opts.on('--config PATH', "Path to TOML config (default: #{@config_path})") do |value| - @config_path = value - @config_explicit = true - end - opts.on('-h', '--help', 'Show help') do - show_help - exit 0 - end - end - @global_parser.order!(@argv) - - command = @argv.shift - if command.nil? - show_help - exit 0 - end - - # create-both loads its own config files and does not use the default config path. - # Parse it before building the manager so we avoid loading the default config needlessly. - if command == 'create-both' - opts = parse_create_options(@argv, include_model_preset: false) - run_create_both(**opts) - return - end - - if command == 'delete-both' - opts = parse_delete_both_options(@argv) - run_delete_both(**opts) - return - end - - if command == 'status' - run_status - return - end - - if command == 'watch' - run_watch - return - end - - # All other commands operate on a single VM defined by the --config path. - config_loader = ConfigLoader.load(@config_path) - manager = build_manager(config_loader.config) - - case command - when 'create' - opts = parse_create_options(@argv) - manager.create(**opts) - when 'delete' - vm_id = nil - dry_run = false - parser = OptionParser.new do |opts| - opts.on('--vm-id ID', Integer, 'Delete a VM by ID instead of using the local state file') do |value| - vm_id = value - end - opts.on('--dry-run', 'Show which VM would be deleted without deleting it') { dry_run = true } - end - parser.parse!(@argv) - manager.delete(vm_id: vm_id, dry_run: dry_run) - when 'test' - manager.test - when 'model' - sub = @argv.shift - raise Error, 'Missing model subcommand. Use: model list | model switch PRESET [--dry-run]' if sub.nil? - - case sub - when 'list' - manager.list_models - when 'switch' - preset = @argv.shift - raise Error, 'Missing preset name. Usage: model switch PRESET [--dry-run]' if preset.nil? - - dry_run = false - OptionParser.new { |o| o.on('--dry-run') { dry_run = true } }.parse!(@argv) - manager.switch_model(preset_name: preset, dry_run: dry_run) - else - raise Error, "Unknown model subcommand #{sub.inspect}. Use list or switch." - end - else - raise Error, - "Unknown command #{command.inspect}. Use create, create-both, delete, delete-both, status, watch, test, or model." - end - end - - private - - # Parses the shared --replace / --dry-run / --vllm / --ollama / --model flags - # used by both 'create' and 'create-both'. When include_model_preset is false - # (create-both), the --model flag is not registered because each VM uses its own - # TOML default. Returns a hash suitable for splatting into Manager#create. - def parse_create_options(argv, include_model_preset: true) - opts = { replace: false, dry_run: false, install_vllm: nil, install_ollama: nil, install_comfyui: nil, - vllm_preset: nil } - OptionParser.new do |o| - o.on('--replace', 'Delete the tracked VM before creating a new one') { opts[:replace] = true } - o.on('--dry-run', 'Print the create plan without creating a VM') { opts[:dry_run] = true } - o.on('--vllm', 'Enable vLLM setup (overrides config)') { opts[:install_vllm] = true } - o.on('--no-vllm', 'Disable vLLM setup (overrides config)') { opts[:install_vllm] = false } - o.on('--ollama', 'Enable Ollama setup (overrides config)') { opts[:install_ollama] = true } - o.on('--no-ollama', 'Disable Ollama setup (overrides config)') { opts[:install_ollama] = false } - o.on('--comfyui', 'Enable ComfyUI setup (overrides config)') { opts[:install_comfyui] = true } - o.on('--no-comfyui', 'Disable ComfyUI setup (overrides config)') { opts[:install_comfyui] = false } - if include_model_preset - o.on('--model PRESET', 'Use a named vLLM preset at create time') do |v| - opts[:vllm_preset] = v - end - end - end.parse!(argv) - opts - end - - def parse_delete_both_options(argv) - opts = { dry_run: false } - OptionParser.new do |o| - o.on('--dry-run', 'Show which VMs would be deleted without deleting them') { opts[:dry_run] = true } - end.parse!(argv) - opts - end - - # Constructs a Manager and all its dependencies from a Config object. - # Accepts optional output destination and WireGuard concurrency hooks. - def build_manager(config, out: $stdout, wg_setup_pre: nil, wg_setup_post: nil) - state_store = StateStore.new(config.state_file) - client = HyperstackClient.new(base_url: config.api_base_url, api_key: config.api_key) - local_wireguard = build_local_wireguard(config) - Manager.new( - config: config, - client: client, - state_store: state_store, - local_wireguard: local_wireguard, - out: out, - wg_setup_pre: wg_setup_pre, - wg_setup_post: wg_setup_post - ) - end - - def build_local_wireguard(config) - LocalWireGuard.new( - interface_name: config.local_interface_name, - config_path: config.local_wg_config_path - ) - end - - # Starts the VllmWatcher dashboard for all active VMs. - # Reuses status_config_loaders so it auto-discovers the same set of VMs - # that `status` would show (honours --config if given explicitly). - def run_watch - loaders = status_config_loaders - raise Error, 'No active VMs found. Run `create` or `create-both` first.' if loaders.empty? - - VllmWatcher.new(config_loaders: loaders).run - end - - def run_status - loaders = status_config_loaders - if loaders.one? - build_manager(loaders.first.config).status - return - end - - expected_ips = [] - loaders.each_with_index do |loader, index| - puts if index.positive? - puts "[#{File.basename(loader.path)}]" - expected_ip = build_manager(loader.config).status(include_local_wireguard: false) - expected_ips << expected_ip if expected_ip - end - - puts - puts '[local-wireguard]' - build_manager(loaders.first.config).show_local_wireguard(expected_ips) - end - - def status_config_loaders - return [ConfigLoader.load(@config_path)] if @config_explicit - - candidates = [ - @config_path, - File.join(__dir__, 'hyperstack-vm1-gptoss.toml'), - File.join(__dir__, 'hyperstack-vm2.toml'), - File.join(__dir__, 'hyperstack-vm-photo.toml') - ].uniq.select { |path| File.exist?(path) } - - loaders = candidates.map { |path| ConfigLoader.load(path) } - tracked = loaders.select { |loader| File.exist?(loader.config.state_file) } - tracked.empty? ? [ConfigLoader.load(@config_path)] : tracked - end - - def pair_config_loaders - [ - ConfigLoader.load(File.join(__dir__, 'hyperstack-vm1-gptoss.toml')), - ConfigLoader.load(File.join(__dir__, 'hyperstack-vm2.toml')) - ] - end - - # Provisions hyperstack-vm1 and hyperstack-vm2 concurrently in separate threads. - # WireGuard setup is serialized: VM1 runs first (replacing the base wg1.conf), then - # VM2 adds its peer. A Mutex+ConditionVariable acts as a one-shot latch between threads. - # If VM1 fails before reaching the WG step the latch is still released so VM2 doesn't hang. - # vllm_preset is accepted but ignored — each VM uses its own TOML default preset. - def run_create_both(replace:, dry_run:, install_vllm:, install_ollama:, install_comfyui: nil, vllm_preset: nil) # rubocop:disable Lint/UnusedMethodArgument - vm1_loader, vm2_loader = pair_config_loaders - vm1_config = vm1_loader.config - vm2_config = vm2_loader.config - - out_mutex = Mutex.new - wg_mutex = Mutex.new - wg_cv = ConditionVariable.new - vm1_wg_state = { done: false, error: nil } - - # VM1 signals the latch after its WG step (whether WG ran or was already done). - vm1_wg_post = proc do - wg_mutex.synchronize do - vm1_wg_state[:done] = true - wg_cv.broadcast - end - end - - # VM2 blocks here until VM1's WG step resolves, then raises if VM1 failed. - vm2_wg_pre = proc do - wg_mutex.synchronize { wg_cv.wait(wg_mutex) until vm1_wg_state[:done] || vm1_wg_state[:error] } - raise Error, 'VM1 WireGuard setup failed; cannot add VM2 peer.' if vm1_wg_state[:error] - end - - manager1 = build_manager(vm1_config, - out: PrefixedOutput.new('[vm1] ', $stdout, out_mutex), - wg_setup_post: vm1_wg_post) - manager2 = build_manager(vm2_config, - out: PrefixedOutput.new('[vm2] ', $stdout, out_mutex), - wg_setup_pre: vm2_wg_pre) - - errors = {} - create_opts = { replace: replace, dry_run: dry_run, - install_vllm: install_vllm, install_ollama: install_ollama, install_comfyui: install_comfyui } - - vm1_thread = Thread.new do - manager1.create(**create_opts) - rescue Error => e - errors[:vm1] = e.message - # Unblock VM2 even if VM1 failed so the process doesn't hang. - wg_mutex.synchronize do - vm1_wg_state[:error] = e.message - wg_cv.broadcast - end - end - - vm2_thread = Thread.new do - manager2.create(**create_opts) - rescue Error => e - errors[:vm2] = e.message - end - - [vm1_thread, vm2_thread].each(&:join) - - errors.each { |vm, msg| warn("ERROR [#{vm}]: #{msg}") } - exit 1 unless errors.empty? - end - - def run_delete_both(dry_run:) - out_mutex = Mutex.new - errors_mutex = Mutex.new - errors = {} - loaders = pair_config_loaders - local_wg_out = PrefixedOutput.new('[local-wireguard] ', $stdout, out_mutex) - threads = loaders.each_with_index.map do |loader, index| - label = "vm#{index + 1}" - manager = build_manager(loader.config, out: PrefixedOutput.new("[#{label}] ", $stdout, out_mutex)) - - Thread.new do - manager.delete(dry_run: dry_run, skip_local_cleanup: true) - rescue Error => e - errors_mutex.synchronize { errors[label.to_sym] = e.message } - end - end - threads.each(&:join) - - if errors.empty? - allowed_ips = loaders.map { |loader| "#{loader.config.wireguard_gateway_ip}/32" } - hostnames = loaders.map { |loader| loader.config.wireguard_gateway_hostname } - begin - local_manager = build_manager(loaders.first.config, out: local_wg_out) - cleanup = local_manager.send(:cleanup_local_access, dry_run: dry_run, hostnames: hostnames, - allowed_ips: allowed_ips) - local_manager.send(:report_local_cleanup, local_wg_out, cleanup, dry_run: dry_run) - rescue Error => e - errors[:local_wireguard] = e.message - end - end - - errors.each { |vm, msg| warn("ERROR [#{vm}]: #{msg}") } - exit 1 unless errors.empty? - end - end end +require_relative 'lib/hyperstack/config' +require_relative 'lib/hyperstack/state' +require_relative 'lib/hyperstack/client' +require_relative 'lib/hyperstack/wireguard' +require_relative 'lib/hyperstack/provisioning' +require_relative 'lib/hyperstack/manager' +require_relative 'lib/hyperstack/watcher' +require_relative 'lib/hyperstack/cli' + begin HyperstackVM::CLI.new(ARGV).run rescue HyperstackVM::Error => e |