blob: ecd3f5cff59028c2d9be1f8a7d838ddebf835fa2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
name: prometheus
namespace: cicd
finalizers:
- resources-finalizer.argocd.argoproj.io
spec:
project: default
sources:
# Source 1: Upstream Helm chart from prometheus-community
- repoURL: https://prometheus-community.github.io/helm-charts
chart: kube-prometheus-stack
targetRevision: 55.5.0
helm:
releaseName: prometheus
valuesObject:
kubeEtcd:
enabled: true
endpoints:
- 192.168.2.120
- 192.168.2.121
- 192.168.2.122
service:
enabled: true
port: 2381
targetPort: 2381
kubeControllerManager:
enabled: true
endpoints:
- 192.168.2.120
- 192.168.2.121
- 192.168.2.122
service:
enabled: true
port: 10257
targetPort: 10257
serviceMonitor:
enabled: true
https: true
insecureSkipVerify: true
# k3s embeds kube-proxy and kube-scheduler into the main process
# Disable these components to prevent false-positive alerts
kubeProxy:
enabled: false
kubeScheduler:
enabled: false
# Disable alert rules for components not available in k3s
defaultRules:
rules:
kubeProxy: false
kubeSchedulerAlerting: false
kubeSchedulerRecording: false
kubeScheduler: false
# Enable the textfile collector in the node_exporter DaemonSet so
# check-nfs-mount.sh can expose nfs_mount_monitor_consecutive_failures
# as a Prometheus metric without needing a separate exporter.
# extraHostVolumeMounts is the prometheus-node-exporter sub-chart key
# for mounting host paths into the container; extraArgs adds the
# --collector.textfile.directory flag to enable the textfile scraper.
prometheus-node-exporter:
extraArgs:
- --collector.textfile.directory=/host/textfile_collector
extraHostVolumeMounts:
- name: textfile-collector
hostPath: /var/lib/node_exporter/textfile_collector
mountPath: /host/textfile_collector
readOnly: true
mountPropagation: None
prometheus:
prometheusSpec:
additionalArgs:
- name: web.enable-remote-write-receiver
value: ""
- name: web.enable-admin-api
value: ""
enableFeatures:
- exemplar-storage
- otlp-write-receiver
additionalScrapeConfigs: []
tsdb:
outOfOrderTimeWindow: 744h # 31 days
additionalScrapeConfigsSecret:
enabled: true
name: additional-scrape-configs
key: additional-scrape-configs.yaml
storageSpec:
volumeClaimTemplate:
spec:
storageClassName: ""
accessModes: ["ReadWriteOnce"]
resources:
requests:
storage: 10Gi
selector:
matchLabels:
type: local
app: prometheus
alertmanager:
config:
global:
resolve_timeout: 5m
route:
group_by: ['alertname', 'namespace', 'severity']
group_wait: 30s
group_interval: 5m
repeat_interval: 12h
receiver: 'default'
routes:
# Watchdog alert is just for testing, suppress it
- matchers:
- alertname = "Watchdog"
receiver: 'null'
# ArgoCD application alerts - high priority
- matchers:
- component = "argocd"
receiver: 'argocd-alerts'
group_by: ['alertname', 'name', 'severity']
group_wait: 10s
repeat_interval: 6h
# NFS auto-repair alerts from r0/r1/r2 — short group_wait so
# operators are notified quickly when the mount breaks.
# repeat_interval is short: NFS outages are urgent and
# the auto-reboot cycle takes only ~30 s per node.
- matchers:
- component = "nfs"
receiver: 'nfs-alerts'
group_by: ['alertname', 'host', 'severity']
group_wait: 10s
repeat_interval: 30m
# Container image CVEs from Trivy Operator (see trivy-operator ArgoCD app)
- matchers:
- component = "trivy"
receiver: 'trivy-alerts'
group_by: ['alertname', 'namespace', 'severity']
group_wait: 2m
repeat_interval: 24h
receivers:
- name: 'null'
- name: 'default'
# Default receiver - alerts visible in UI only
- name: 'argocd-alerts'
# ArgoCD-specific receiver - alerts visible in UI only
# Future: add email/slack/webhook configuration here
- name: 'nfs-alerts'
# NFS auto-repair alerts — visible in Alertmanager UI
# Future: add webhook/email for on-call paging here
- name: 'trivy-alerts'
# Trivy Operator CVE alerts - visible in Alertmanager UI; add webhook/email when desired
inhibit_rules:
# Inhibit info alerts if warning or critical is firing
- source_matchers:
- severity = "critical"
target_matchers:
- severity =~ "warning|info"
equal: ['namespace', 'alertname']
- source_matchers:
- severity = "warning"
target_matchers:
- severity = "info"
equal: ['namespace', 'alertname']
grafana:
persistence:
enabled: true
type: pvc
existingClaim: "grafana-data-pvc"
initChownData:
enabled: false
podSecurityContext:
fsGroup: 911
runAsUser: 911
runAsGroup: 911
# Disable sidecar-based datasource provisioning
sidecar:
datasources:
enabled: false
# Mount datasources ConfigMap directly to provisioning directory
extraVolumes:
- name: datasources-volume
configMap:
name: grafana-datasources-all
extraVolumeMounts:
- name: datasources-volume
mountPath: /etc/grafana/provisioning/datasources
readOnly: true
# Source 2: Additional manifests from Git repository
- repoURL: http://git-server.cicd.svc.cluster.local/conf.git
targetRevision: master
path: f3s/prometheus/manifests
destination:
server: https://kubernetes.default.svc
namespace: monitoring
syncPolicy:
automated:
prune: true
selfHeal: true
syncOptions:
- CreateNamespace=false
- ServerSideApply=true
retry:
limit: 3
backoff:
duration: 10s
factor: 2
maxDuration: 3m
|
