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| -rw-r--r-- | about/resources.gmi | 206 | ||||
| -rw-r--r-- | gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.gmi | 73 | ||||
| -rw-r--r-- | gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.gmi.tpl | 70 | ||||
| -rw-r--r-- | gemfeed/atom.xml | 78 | ||||
| -rw-r--r-- | index.gmi | 2 | ||||
| -rw-r--r-- | uptime-stats.gmi | 2 |
6 files changed, 287 insertions, 144 deletions
diff --git a/about/resources.gmi b/about/resources.gmi index d30af6ad..ec9b123b 100644 --- a/about/resources.gmi +++ b/about/resources.gmi @@ -35,54 +35,54 @@ You won't find any links on this site because, over time, the links will break. In random order: +* 21st Century C: C Tips from the New School; Ben Klemens; O'Reilly +* Perl New Features; Joshua McAdams, brian d foy; Perl School +* DevOps And Site Reliability Engineering Handbook; Stephen Fleming; Audible * Distributed Systems: Principles and Paradigms; Andrew S. Tanenbaum; Pearson +* Terraform Cookbook; Mikael Krief; Packt Publishing * Systemprogrammierung in Go; Frank Müller; dpunkt -* DevOps And Site Reliability Engineering Handbook; Stephen Fleming; Audible -* Learn You a Haskell for Great Good!; Miran Lipovaca; No Starch Press +* Amazon Web Services in Action; Michael Wittig and Andreas Wittig; Manning Publications +* Ultimate Go Notebook; Bill Kennedy +* Learn You Some Erlang for Great Good; Fred Herbert; No Starch Press +* Systems Performance Tuning; Gian-Paolo D. Musumeci and others...; O'Reilly +* Hands-on Infrastructure Monitoring with Prometheus; Joel Bastos, Pedro Araujo; Packt * Kubernetes Cookbook; Sameer Naik, Sébastien Goasguen, Jonathan Michaux; O'Reilly -* C++ Programming Language; Bjarne Stroustrup; +* Site Reliability Engineering; How Google runs production systems; O'Reilly +* Go Brain Teasers - Exercise Your Mind; Miki Tebeka; The Pragmatic Programmers +* Programming Perl aka "The Camel Book"; Tom Christiansen, brian d foy, Larry Wall & Jon Orwant; O'Reilly +* Data Science at the Command Line; Jeroen Janssens; O'Reilly +* Clusterbau mit Linux-HA; Michael Schwartzkopff; O'Reilly +* Leanring eBPF; Liz Rice; O'Reilly +* Pro Puppet; James Turnbull, Jeffrey McCune; Apress +* Programming Ruby 3.3 (5th Edition); Noel Rappin, with Dave Thomas; The Pragmatic Bookshelf +* Developing Games in Java; David Brackeen and others...; New Riders +* Raku Fundamentals; Moritz Lenz; Apress +* The KCNA (Kubernetes and Cloud Native Associate) Book; Nigel Poulton +* Concurrency in Go; Katherine Cox-Buday; O'Reilly * The Kubernetes Book; Nigel Poulton; Unabridged Audiobook -* Object-Oriented Programming with ANSI-C; Axel-Tobias Schreiner -* Polished Ruby Programming; Jeremy Evans; Packt Publishing +* The Pragmatic Programmer; David Thomas; Addison-Wesley * 97 things every SRE should know; Emil Stolarsky, Jaime Woo; O'Reilly -* The KCNA (Kubernetes and Cloud Native Associate) Book; Nigel Poulton -* Seeking SRE: Conversations About Running Production Systems at Scale; David N. Blank-Edelman; eBook -* The Docker Book; James Turnbull; Kindle -* Effective Java; Joshua Bloch; Addison-Wesley Professional -* Higher Order Perl; Mark Dominus; Morgan Kaufmann -* Perl New Features; Joshua McAdams, brian d foy; Perl School -* Learn You Some Erlang for Great Good; Fred Herbert; No Starch Press +* Polished Ruby Programming; Jeremy Evans; Packt Publishing +* Chaos Engineering - System Resiliency in Practice; Casey Rosenthal and Nora Jones; eBook +* Learn You a Haskell for Great Good!; Miran Lipovaca; No Starch Press +* C++ Programming Language; Bjarne Stroustrup; * The Practise of System and Network Administration; Thomas A. Limoncelli, Christina J. Hogan, Strata R. Chalup; Addison-Wesley Professional Pro Git; Scott Chacon, Ben Straub; Apress -* Developing Games in Java; David Brackeen and others...; New Riders -* 21st Century C: C Tips from the New School; Ben Klemens; O'Reilly -* The DevOps Handbook; Gene Kim, Jez Humble, Patrick Debois, John Willis; Audible -* Leanring eBPF; Liz Rice; O'Reilly -* Raku Recipes; J.J. Merelo; Apress -* Ultimate Go Notebook; Bill Kennedy -* Clusterbau mit Linux-HA; Michael Schwartzkopff; O'Reilly -* Programming Perl aka "The Camel Book"; Tom Christiansen, brian d foy, Larry Wall & Jon Orwant; O'Reilly -* Concurrency in Go; Katherine Cox-Buday; O'Reilly -* Think Raku (aka Think Perl 6); Laurent Rosenfeld, Allen B. Downey; O'Reilly -* Amazon Web Services in Action; Michael Wittig and Andreas Wittig; Manning Publications -* Modern Perl; Chromatic ; Onyx Neon Press -* 100 Go Mistakes and How to Avoid Them; Teiva Harsanyi; Manning Publications +* The Go Programming Language; Alan A. A. Donovan; Addison-Wesley Professional +* Java ist auch eine Insel; Christian Ullenboom; * Tmux 2: Productive Mouse-free Development; Brain P. Hogan; The Pragmatic Programmers -* Hands-on Infrastructure Monitoring with Prometheus; Joel Bastos, Pedro Araujo; Packt -* Funktionale Programmierung; Peter Pepper; Springer * DNS and BIND; Cricket Liu; O'Reilly -* Go Brain Teasers - Exercise Your Mind; Miki Tebeka; The Pragmatic Programmers -* The Pragmatic Programmer; David Thomas; Addison-Wesley -* Terraform Cookbook; Mikael Krief; Packt Publishing * Effective awk programming; Arnold Robbins; O'Reilly -* Raku Fundamentals; Moritz Lenz; Apress -* Systems Performance Tuning; Gian-Paolo D. Musumeci and others...; O'Reilly -* Pro Puppet; James Turnbull, Jeffrey McCune; Apress -* Java ist auch eine Insel; Christian Ullenboom; -* Data Science at the Command Line; Jeroen Janssens; O'Reilly -* Chaos Engineering - System Resiliency in Practice; Casey Rosenthal and Nora Jones; eBook -* The Go Programming Language; Alan A. A. Donovan; Addison-Wesley Professional -* Programming Ruby 3.3 (5th Edition); Noel Rappin, with Dave Thomas; The Pragmatic Bookshelf -* Site Reliability Engineering; How Google runs production systems; O'Reilly +* Modern Perl; Chromatic ; Onyx Neon Press +* Raku Recipes; J.J. Merelo; Apress +* Effective Java; Joshua Bloch; Addison-Wesley Professional +* 100 Go Mistakes and How to Avoid Them; Teiva Harsanyi; Manning Publications +* Higher Order Perl; Mark Dominus; Morgan Kaufmann +* Object-Oriented Programming with ANSI-C; Axel-Tobias Schreiner +* Funktionale Programmierung; Peter Pepper; Springer +* Seeking SRE: Conversations About Running Production Systems at Scale; David N. Blank-Edelman; eBook +* The DevOps Handbook; Gene Kim, Jez Humble, Patrick Debois, John Willis; Audible +* Think Raku (aka Think Perl 6); Laurent Rosenfeld, Allen B. Downey; O'Reilly +* The Docker Book; James Turnbull; Kindle ## Technical references @@ -90,10 +90,10 @@ I didn't read them from the beginning to the end, but I am using them to look up * BPF Performance Tools - Linux System and Application Observability, Brendan Gregg; Addison Wesley * Algorithms; Robert Sedgewick, Kevin Wayne; Addison Wesley -* Implementing Service Level Objectives; Alex Hidalgo; O'Reilly -* The Linux Programming Interface; Michael Kerrisk; No Starch Press * Go: Design Patterns for Real-World Projects; Mat Ryer; Packt +* Implementing Service Level Objectives; Alex Hidalgo; O'Reilly * Relayd and Httpd Mastery; Michael W Lucas +* The Linux Programming Interface; Michael Kerrisk; No Starch Press * Understanding the Linux Kernel; Daniel P. Bovet, Marco Cesati; O'Reilly * Groovy Kurz & Gut; Joerg Staudemeier; O'Reilly @@ -101,44 +101,44 @@ I didn't read them from the beginning to the end, but I am using them to look up In random order: -* Influence without Authority; A. Cohen, D. Bradford; Wiley -* The Software Engineer's Guidebook: Navigating senior, tech lead, and staff engineer positions at tech companies and startups; Gergely Orosz; Audiobook -* Ultralearning; Anna Laurent; Self-published via Amazon -* Never Split the Difference; Chris Voss, Tahl Raz; Random House Business -* Ultralearning; Scott Young; Thorsons -* The Good Enough Job; Simone Stolzoff; Ebury Edge -* Atomic Habits; James Clear; Random House Business -* So Good They Can't Ignore You; Cal Newport; Business Plus -* Solve for Happy; Mo Gawdat (RE-READ 1ST TIME) -* The Off Switch; Mark Cropley; Virgin Books (RE-READ 1ST TIME) -* Coders at Work - Reflections on the craft of programming, Peter Seibel and Mitchell Dorian et al., Audiobook -* The Phoenix Project - A Novel About IT, DevOps, and Helping your Business Win; Gene Kim and Kevin Behr; Trade Select -* The Power of Now; Eckhard Tolle; Yellow Kite -* The Daily Stoic; Ryan Holiday, Stephen Hanselman; Profile Books +* Eat That Frog!; Brian Tracy; Hodder Paperbacks * The Obstacle Is The Way; Ryan Holiday; Profile Books Ltd -* Meditation for Mortals, Oliver Burkeman, Audiobook -* Who Moved My Cheese?; Dr. Spencer Johnson; Vermilion -* The Bullet Journal Method; Ryder Carroll; Fourth Estate -* The Joy of Missing Out; Christina Crook; New Society Publishers -* Buddah and Einstein walk into a Bar; Guy Joseph Ale, Claire Bloom; Blackstone Publishing -* Staff Engineer: Leadership beyond the management track; Will Larson; Audiobook +* Search Inside Yourself - The Unexpected path to Achieving Success, Happiness (and World Peace); Chade-Meng Tan, Daniel Goleman, Jon Kabat-Zinn; HarperOne +* 101 Essays that change the way you think; Brianna Wiest; Audiobook * Eat That Frog; Brian Tracy -* Eat That Frog!; Brian Tracy; Hodder Paperbacks +* The Software Engineer's Guidebook: Navigating senior, tech lead, and staff engineer positions at tech companies and startups; Gergely Orosz; Audiobook +* Deep Work; Cal Newport; Piatkus * Psycho-Cybernetics; Maxwell Maltz; Perigee Books -* Stop starting, start finishing; Arne Roock; Lean-Kanban University -* The Complete Software Developer's Career Guide; John Sonmez; Unabridged Audiobook -* Digital Minimalism; Cal Newport; Portofolio Penguin +* The Bullet Journal Method; Ryder Carroll; Fourth Estate * The 7 Habits Of Highly Effective People; Stephen R. Covey; Simon & Schuster UK -* 101 Essays that change the way you think; Brianna Wiest; Audiobook -* 97 Things Every Engineering Manager Should Know; Camille Fournier; Audiobook +* The Power of Now; Eckhard Tolle; Yellow Kite +* So Good They Can't Ignore You; Cal Newport; Business Plus +* Digital Minimalism; Cal Newport; Portofolio Penguin +* The Complete Software Developer's Career Guide; John Sonmez; Unabridged Audiobook * Slow Productivity; Cal Newport; Penguin Random House -* The Courage to Be Disliked; Ichiro Kishimi and Fumitake Koga; Audiobook +* Getting Things Done; David Allen +* The Phoenix Project - A Novel About IT, DevOps, and Helping your Business Win; Gene Kim and Kevin Behr; Trade Select +* Buddah and Einstein walk into a Bar; Guy Joseph Ale, Claire Bloom; Blackstone Publishing * Time Management for System Administrators; Thomas A. Limoncelli; O'Reilly +* The Good Enough Job; Simone Stolzoff; Ebury Edge +* Atomic Habits; James Clear; Random House Business +* The Daily Stoic; Ryan Holiday, Stephen Hanselman; Profile Books +* 97 Things Every Engineering Manager Should Know; Camille Fournier; Audiobook +* Never Split the Difference; Chris Voss, Tahl Raz; Random House Business +* Influence without Authority; A. Cohen, D. Bradford; Wiley +* Staff Engineer: Leadership beyond the management track; Will Larson; Audiobook +* Who Moved My Cheese?; Dr. Spencer Johnson; Vermilion +* Meditation for Mortals, Oliver Burkeman, Audiobook * Consciousness: A Very Short Introduction; Susan Blackmore; Oxford Uiversity Press -* Deep Work; Cal Newport; Piatkus -* Search Inside Yourself - The Unexpected path to Achieving Success, Happiness (and World Peace); Chade-Meng Tan, Daniel Goleman, Jon Kabat-Zinn; HarperOne -* Getting Things Done; David Allen +* Ultralearning; Anna Laurent; Self-published via Amazon +* The Courage to Be Disliked; Ichiro Kishimi and Fumitake Koga; Audiobook +* Coders at Work - Reflections on the craft of programming, Peter Seibel and Mitchell Dorian et al., Audiobook * Soft Skills; John Sommez; Manning Publications +* The Off Switch; Mark Cropley; Virgin Books (RE-READ 1ST TIME) +* Ultralearning; Scott Young; Thorsons +* Stop starting, start finishing; Arne Roock; Lean-Kanban University +* The Joy of Missing Out; Christina Crook; New Society Publishers +* Solve for Happy; Mo Gawdat (RE-READ 1ST TIME) => ../notes/index.gmi Here are notes of mine for some of the books @@ -146,30 +146,30 @@ In random order: Some of these were in-person with exams; others were online learning lectures only. In random order: -* Apache Tomcat Best Practises; 3-day on-site training +* Developing IaC with Terraform (with Live Lessons); O'Reilly Online +* Scripting Vim; Damian Conway; O'Reilly Online * Red Hat Certified System Administrator; Course + certification (Although I had the option, I decided not to take the next course as it is more effective to self learn what I need) -* MySQL Deep Dive Workshop; 2-day on-site training -* Algorithms Video Lectures; Robert Sedgewick; O'Reilly Online -* Structure and Interpretation of Computer Programs; Harold Abelson and more...; +* Functional programming lecture; Remote University of Hagen +* Cloud Operations on AWS - Learn how to configure, deploy, maintain, and troubleshoot your AWS environments; 3-day online live training with labs; Amazon * The Well-Grounded Rubyist Video Edition; David. A. Black; O'Reilly Online +* MySQL Deep Dive Workshop; 2-day on-site training * Ultimate Go Programming; Bill Kennedy; O'Reilly Online -* Cloud Operations on AWS - Learn how to configure, deploy, maintain, and troubleshoot your AWS environments; 3-day online live training with labs; Amazon +* Algorithms Video Lectures; Robert Sedgewick; O'Reilly Online * Protocol buffers; O'Reilly Online -* The Ultimate Kubernetes Bootcamp; School of Devops; O'Reilly Online -* AWS Immersion Day; Amazon; 1-day interactive online training -* Developing IaC with Terraform (with Live Lessons); O'Reilly Online -* Functional programming lecture; Remote University of Hagen +* Structure and Interpretation of Computer Programs; Harold Abelson and more...; * F5 Loadbalancers Training; 2-day on-site training; F5, Inc. +* Apache Tomcat Best Practises; 3-day on-site training +* AWS Immersion Day; Amazon; 1-day interactive online training +* The Ultimate Kubernetes Bootcamp; School of Devops; O'Reilly Online * Linux Security and Isolation APIs Training; Michael Kerrisk; 3-day on-site training -* Scripting Vim; Damian Conway; O'Reilly Online ## Technical guides These are not whole books, but guides (smaller or larger) which I found very useful. in random order: +* Raku Guide at https://raku.guide * Advanced Bash-Scripting Guide * How CPUs work at https://cpu.land -* Raku Guide at https://raku.guide ## Podcasts @@ -177,58 +177,58 @@ These are not whole books, but guides (smaller or larger) which I found very use In random order: -* Hidden Brain -* Pratical AI -* Maintainable -* Fallthrough [Golang] * Backend Banter -* Wednesday Wisdom +* BSD Now [BSD] * Fork Around And Find Out * Cup o' Go [Golang] -* Deep Questions with Cal Newport -* The Pragmatic Engineer Podcast +* Pratical AI * The ProdCast (Google SRE Podcast) +* The Pragmatic Engineer Podcast * Modern Mentor -* Dev Interrupted -* BSD Now [BSD] +* Deep Questions with Cal Newport +* Hidden Brain +* Maintainable * The Changelog Podcast(s) +* Fallthrough [Golang] +* Dev Interrupted +* Wednesday Wisdom ### Podcasts I liked I liked them but am not listening to them anymore. The podcasts have either "finished" (no more episodes) or I stopped listening to them due to time constraints or a shift in my interests. * Ship It (predecessor of Fork Around And Find Out) -* Go Time (predecessor of fallthrough) +* Modern Mentor * FLOSS weekly +* Go Time (predecessor of fallthrough) * CRE: Chaosradio Express [german] -* Modern Mentor * Java Pub House ## Newsletters I like This is a mix of tech and non-tech newsletters I am subscribed to. In random order: -* Monospace Mentor -* The Pragmatic Engineer -* Register Spill -* Changelog News -* VK Newsletter -* The Valuable Dev -* Applied Go Weekly Newsletter * Ruby Weekly * Andreas Brandhorst Newsletter (Sci-Fi author) -* byteSizeGo * Golang Weekly +* Applied Go Weekly Newsletter +* The Valuable Dev +* Changelog News +* Register Spill * The Imperfectionist +* Monospace Mentor +* byteSizeGo +* The Pragmatic Engineer +* VK Newsletter ## Magazines I like(d) This is a mix of tech I like(d). I may not be a current subscriber, but now and then, I buy an issue. In random order: -* freeX (not published anymore) +* LWN (online only) * Linux User +* freeX (not published anymore) * Linux Magazine -* LWN (online only) # Formal education diff --git a/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.gmi b/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.gmi index ba04abcb..3e27bc1e 100644 --- a/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.gmi +++ b/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.gmi @@ -45,8 +45,9 @@ Let's continue... * ⇢ ⇢ CPU throttling * ⇢ Wake-on-LAN Setup * ⇢ ⇢ Setting up WoL on the laptop -* ⇢ ⇢ Testing WoL +* ⇢ ⇢ Testing WoL and Shutdown * ⇢ ⇢ WoL from WiFi +* ⇢ ⇢ Remote Shutdown via SSH * ⇢ ⇢ BIOS Configuration * ⇢ Conclusion @@ -312,17 +313,25 @@ To wake the Beelinks from my Fedora laptop (`earth`), I installed the `wol` pack [paul@earth]~% sudo dnf install -y wol ``` -Next, I created a simple script (`~/bin/wol-f3s`) to wake the machines: +Next, I created a simple script (`~/bin/wol-f3s`) to wake and shutdown the machines: ```sh #!/bin/bash -# Wake-on-LAN script for f3s cluster (f0, f1, f2) +# Wake-on-LAN and shutdown script for f3s cluster (f0, f1, f2) # MAC addresses F0_MAC="e8:ff:1e:d7:1c:ac" # f0 (192.168.1.130) F1_MAC="e8:ff:1e:d7:1e:44" # f1 (192.168.1.131) F2_MAC="e8:ff:1e:d7:1c:a0" # f2 (192.168.1.132) +# IP addresses +F0_IP="192.168.1.130" +F1_IP="192.168.1.131" +F2_IP="192.168.1.132" + +# SSH user +SSH_USER="paul" + # Broadcast address for your LAN BROADCAST="192.168.1.255" @@ -333,7 +342,18 @@ wake() { wol -i "$BROADCAST" "$mac" } -case "${1:-all}" in +shutdown_host() { + local name=$1 + local ip=$2 + echo "Shutting down $name ($ip)..." + ssh -o ConnectTimeout=5 "$SSH_USER@$ip" "doas poweroff" 2>/dev/null && \ + echo " ✓ Shutdown command sent to $name" || \ + echo " ✗ Failed to reach $name (already down?)" +} + +ACTION="${1:-all}" + +case "$ACTION" in f0) wake "f0" "$F0_MAC" ;; f1) wake "f1" "$F1_MAC" ;; f2) wake "f2" "$F2_MAC" ;; @@ -342,8 +362,16 @@ case "${1:-all}" in wake "f1" "$F1_MAC" wake "f2" "$F2_MAC" ;; + shutdown|poweroff|down) + shutdown_host "f0" "$F0_IP" + shutdown_host "f1" "$F1_IP" + shutdown_host "f2" "$F2_IP" + echo "" + echo "✓ Shutdown commands sent to all machines." + exit 0 + ;; *) - echo "Usage: $0 [f0|f1|f2|all]" + echo "Usage: $0 [f0|f1|f2|all|shutdown]" exit 1 ;; esac @@ -352,21 +380,28 @@ echo "" echo "✓ WoL packets sent. Machines should boot in a few seconds." ``` -After making the script executable with `chmod +x ~/bin/wol-f3s`, I can now wake the machines with simple commands: +After making the script executable with `chmod +x ~/bin/wol-f3s`, I can now control the machines with simple commands: ```sh -[paul@earth]~% wol-f3s # Wake all three -[paul@earth]~% wol-f3s f0 # Wake only f0 +[paul@earth]~% wol-f3s # Wake all three +[paul@earth]~% wol-f3s f0 # Wake only f0 +[paul@earth]~% wol-f3s shutdown # Shutdown all three via SSH ``` -## Testing WoL +## Testing WoL and Shutdown -To test the setup, I shutdown all three machines: +To test the setup, I shutdown all three machines using the script's shutdown function: ```sh -[paul@earth]~% ssh paul@192.168.1.130 "doas poweroff" -[paul@earth]~% ssh paul@192.168.1.131 "doas poweroff" -[paul@earth]~% ssh paul@192.168.1.132 "doas poweroff" +[paul@earth]~% wol-f3s shutdown +Shutting down f0 (192.168.1.130)... + ✓ Shutdown command sent to f0 +Shutting down f1 (192.168.1.131)... + ✓ Shutdown command sent to f1 +Shutting down f2 (192.168.1.132)... + ✓ Shutdown command sent to f2 + +✓ Shutdown commands sent to all machines. ``` After waiting for them to fully power down (about 1 minute), I sent the WoL magic packets: @@ -391,6 +426,18 @@ An important note: **Wake-on-LAN works perfectly even when the laptop is connect This makes WoL very convenient - I can wake the cluster from anywhere in my home, whether I'm on WiFi or ethernet. +## Remote Shutdown via SSH + +While Wake-on-LAN handles powering on the machines remotely, I also added a shutdown function to the script for convenience. The `wol-f3s shutdown` command uses SSH to connect to each machine and execute `doas poweroff`, gracefully shutting them all down. + +This is particularly useful for power saving - when I'm done working with the cluster for the day, I can simply run: + +```sh +[paul@earth]~% wol-f3s shutdown +``` + +And all three machines will shut down cleanly. The next time I need them, a simple `wol-f3s` command wakes them all back up. This combination makes the cluster very energy-efficient while maintaining quick access when needed. + ## BIOS Configuration For WoL to work reliably, make sure to check the BIOS settings on each Beelink: diff --git a/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.gmi.tpl b/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.gmi.tpl index e241c32b..ac865bf3 100644 --- a/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.gmi.tpl +++ b/gemfeed/2024-12-03-f3s-kubernetes-with-freebsd-part-2.gmi.tpl @@ -280,17 +280,25 @@ To wake the Beelinks from my Fedora laptop (`earth`), I installed the `wol` pack [paul@earth]~% sudo dnf install -y wol ``` -Next, I created a simple script (`~/bin/wol-f3s`) to wake the machines: +Next, I created a simple script (`~/bin/wol-f3s`) to wake and shutdown the machines: ```sh #!/bin/bash -# Wake-on-LAN script for f3s cluster (f0, f1, f2) +# Wake-on-LAN and shutdown script for f3s cluster (f0, f1, f2) # MAC addresses F0_MAC="e8:ff:1e:d7:1c:ac" # f0 (192.168.1.130) F1_MAC="e8:ff:1e:d7:1e:44" # f1 (192.168.1.131) F2_MAC="e8:ff:1e:d7:1c:a0" # f2 (192.168.1.132) +# IP addresses +F0_IP="192.168.1.130" +F1_IP="192.168.1.131" +F2_IP="192.168.1.132" + +# SSH user +SSH_USER="paul" + # Broadcast address for your LAN BROADCAST="192.168.1.255" @@ -301,7 +309,18 @@ wake() { wol -i "$BROADCAST" "$mac" } -case "${1:-all}" in +shutdown_host() { + local name=$1 + local ip=$2 + echo "Shutting down $name ($ip)..." + ssh -o ConnectTimeout=5 "$SSH_USER@$ip" "doas poweroff" 2>/dev/null && \ + echo " ✓ Shutdown command sent to $name" || \ + echo " ✗ Failed to reach $name (already down?)" +} + +ACTION="${1:-all}" + +case "$ACTION" in f0) wake "f0" "$F0_MAC" ;; f1) wake "f1" "$F1_MAC" ;; f2) wake "f2" "$F2_MAC" ;; @@ -310,8 +329,16 @@ case "${1:-all}" in wake "f1" "$F1_MAC" wake "f2" "$F2_MAC" ;; + shutdown|poweroff|down) + shutdown_host "f0" "$F0_IP" + shutdown_host "f1" "$F1_IP" + shutdown_host "f2" "$F2_IP" + echo "" + echo "✓ Shutdown commands sent to all machines." + exit 0 + ;; *) - echo "Usage: $0 [f0|f1|f2|all]" + echo "Usage: $0 [f0|f1|f2|all|shutdown]" exit 1 ;; esac @@ -320,21 +347,28 @@ echo "" echo "✓ WoL packets sent. Machines should boot in a few seconds." ``` -After making the script executable with `chmod +x ~/bin/wol-f3s`, I can now wake the machines with simple commands: +After making the script executable with `chmod +x ~/bin/wol-f3s`, I can now control the machines with simple commands: ```sh -[paul@earth]~% wol-f3s # Wake all three -[paul@earth]~% wol-f3s f0 # Wake only f0 +[paul@earth]~% wol-f3s # Wake all three +[paul@earth]~% wol-f3s f0 # Wake only f0 +[paul@earth]~% wol-f3s shutdown # Shutdown all three via SSH ``` -## Testing WoL +## Testing WoL and Shutdown -To test the setup, I shutdown all three machines: +To test the setup, I shutdown all three machines using the script's shutdown function: ```sh -[paul@earth]~% ssh paul@192.168.1.130 "doas poweroff" -[paul@earth]~% ssh paul@192.168.1.131 "doas poweroff" -[paul@earth]~% ssh paul@192.168.1.132 "doas poweroff" +[paul@earth]~% wol-f3s shutdown +Shutting down f0 (192.168.1.130)... + ✓ Shutdown command sent to f0 +Shutting down f1 (192.168.1.131)... + ✓ Shutdown command sent to f1 +Shutting down f2 (192.168.1.132)... + ✓ Shutdown command sent to f2 + +✓ Shutdown commands sent to all machines. ``` After waiting for them to fully power down (about 1 minute), I sent the WoL magic packets: @@ -359,6 +393,18 @@ An important note: **Wake-on-LAN works perfectly even when the laptop is connect This makes WoL very convenient - I can wake the cluster from anywhere in my home, whether I'm on WiFi or ethernet. +## Remote Shutdown via SSH + +While Wake-on-LAN handles powering on the machines remotely, I also added a shutdown function to the script for convenience. The `wol-f3s shutdown` command uses SSH to connect to each machine and execute `doas poweroff`, gracefully shutting them all down. + +This is particularly useful for power saving - when I'm done working with the cluster for the day, I can simply run: + +```sh +[paul@earth]~% wol-f3s shutdown +``` + +And all three machines will shut down cleanly. The next time I need them, a simple `wol-f3s` command wakes them all back up. This combination makes the cluster very energy-efficient while maintaining quick access when needed. + ## BIOS Configuration For WoL to work reliably, make sure to check the BIOS settings on each Beelink: diff --git a/gemfeed/atom.xml b/gemfeed/atom.xml index bb665238..48bdcd7e 100644 --- a/gemfeed/atom.xml +++ b/gemfeed/atom.xml @@ -1,6 +1,6 @@ <?xml version="1.0" encoding="utf-8"?> <feed xmlns="http://www.w3.org/2005/Atom"> - <updated>2026-01-11T10:37:38+02:00</updated> + <updated>2026-01-11T10:46:34+02:00</updated> <title>foo.zone feed</title> <subtitle>To be in the .zone!</subtitle> <link href="gemini://foo.zone/gemfeed/atom.xml" rel="self" /> @@ -13637,8 +13637,9 @@ Jan 26 17:36:32 f2 apcupsd[2159]: apcupsd shutdown succeeded <li>⇢ <a href='#cpu-throttling'>CPU throttling</a></li> <li><a href='#wake-on-lan-setup'>Wake-on-LAN Setup</a></li> <li>⇢ <a href='#setting-up-wol-on-the-laptop'>Setting up WoL on the laptop</a></li> -<li>⇢ <a href='#testing-wol'>Testing WoL</a></li> +<li>⇢ <a href='#testing-wol-and-shutdown'>Testing WoL and Shutdown</a></li> <li>⇢ <a href='#wol-from-wifi'>WoL from WiFi</a></li> +<li>⇢ <a href='#remote-shutdown-via-ssh'>Remote Shutdown via SSH</a></li> <li>⇢ <a href='#bios-configuration'>BIOS Configuration</a></li> <li><a href='#conclusion'>Conclusion</a></li> </ul><br /> @@ -13949,20 +13950,28 @@ http://www.gnu.org/software/src-highlite --> <pre>[paul@earth]~% sudo dnf install -y wol </pre> <br /> -<span>Next, I created a simple script (<span class='inlinecode'>~/bin/wol-f3s</span>) to wake the machines:</span><br /> +<span>Next, I created a simple script (<span class='inlinecode'>~/bin/wol-f3s</span>) to wake and shutdown the machines:</span><br /> <br /> <!-- Generator: GNU source-highlight 3.1.9 by Lorenzo Bettini http://www.lorenzobettini.it http://www.gnu.org/software/src-highlite --> <pre><i><font color="silver">#!/bin/bash</font></i> -<i><font color="silver"># Wake-on-LAN script for f3s cluster (f0, f1, f2)</font></i> +<i><font color="silver"># Wake-on-LAN and shutdown script for f3s cluster (f0, f1, f2)</font></i> <i><font color="silver"># MAC addresses</font></i> F0_MAC=<font color="#808080">"e8:ff:1e:d7:1c:ac"</font> <i><font color="silver"># f0 (192.168.1.130)</font></i> F1_MAC=<font color="#808080">"e8:ff:1e:d7:1e:44"</font> <i><font color="silver"># f1 (192.168.1.131)</font></i> F2_MAC=<font color="#808080">"e8:ff:1e:d7:1c:a0"</font> <i><font color="silver"># f2 (192.168.1.132)</font></i> +<i><font color="silver"># IP addresses</font></i> +F0_IP=<font color="#808080">"192.168.1.130"</font> +F1_IP=<font color="#808080">"192.168.1.131"</font> +F2_IP=<font color="#808080">"192.168.1.132"</font> + +<i><font color="silver"># SSH user</font></i> +SSH_USER=<font color="#808080">"paul"</font> + <i><font color="silver"># Broadcast address for your LAN</font></i> BROADCAST=<font color="#808080">"192.168.1.255"</font> @@ -13973,7 +13982,18 @@ wake() { wol -i <font color="#808080">"$BROADCAST"</font> <font color="#808080">"$mac"</font> } -<b><u><font color="#000000">case</font></u></b> <font color="#808080">"${1:-all}"</font> <b><u><font color="#000000">in</font></u></b> +shutdown_host() { + <b><u><font color="#000000">local</font></u></b> name=$1 + <b><u><font color="#000000">local</font></u></b> ip=$2 + echo <font color="#808080">"Shutting down $name ($ip)..."</font> + ssh -o ConnectTimeout=<font color="#000000">5</font> <font color="#808080">"$SSH_USER@$ip"</font> <font color="#808080">"doas poweroff"</font> <font color="#000000">2</font>>/dev/null && \ + echo <font color="#808080">" ✓ Shutdown command sent to $name"</font> || \ + echo <font color="#808080">" ✗ Failed to reach $name (already down?)"</font> +} + +ACTION=<font color="#808080">"${1:-all}"</font> + +<b><u><font color="#000000">case</font></u></b> <font color="#808080">"$ACTION"</font> <b><u><font color="#000000">in</font></u></b> f0) wake <font color="#808080">"f0"</font> <font color="#808080">"$F0_MAC"</font> ;; f1) wake <font color="#808080">"f1"</font> <font color="#808080">"$F1_MAC"</font> ;; f2) wake <font color="#808080">"f2"</font> <font color="#808080">"$F2_MAC"</font> ;; @@ -13982,8 +14002,16 @@ wake() { wake <font color="#808080">"f1"</font> <font color="#808080">"$F1_MAC"</font> wake <font color="#808080">"f2"</font> <font color="#808080">"$F2_MAC"</font> ;; + shutdown|poweroff|down) + shutdown_host <font color="#808080">"f0"</font> <font color="#808080">"$F0_IP"</font> + shutdown_host <font color="#808080">"f1"</font> <font color="#808080">"$F1_IP"</font> + shutdown_host <font color="#808080">"f2"</font> <font color="#808080">"$F2_IP"</font> + echo <font color="#808080">""</font> + echo <font color="#808080">"✓ Shutdown commands sent to all machines."</font> + <b><u><font color="#000000">exit</font></u></b> <font color="#000000">0</font> + ;; *) - echo <font color="#808080">"Usage: $0 [f0|f1|f2|all]"</font> + echo <font color="#808080">"Usage: $0 [f0|f1|f2|all|shutdown]"</font> <b><u><font color="#000000">exit</font></u></b> <font color="#000000">1</font> ;; <b><u><font color="#000000">esac</font></u></b> @@ -13992,27 +14020,34 @@ echo <font color="#808080">""</font> echo <font color="#808080">"✓ WoL packets sent. Machines should boot in a few seconds."</font> </pre> <br /> -<span>After making the script executable with <span class='inlinecode'>chmod +x ~/bin/wol-f3s</span>, I can now wake the machines with simple commands:</span><br /> +<span>After making the script executable with <span class='inlinecode'>chmod +x ~/bin/wol-f3s</span>, I can now control the machines with simple commands:</span><br /> <br /> <!-- Generator: GNU source-highlight 3.1.9 by Lorenzo Bettini http://www.lorenzobettini.it http://www.gnu.org/software/src-highlite --> -<pre>[paul@earth]~% wol-f3s <i><font color="silver"># Wake all three</font></i> -[paul@earth]~% wol-f3s f0 <i><font color="silver"># Wake only f0</font></i> +<pre>[paul@earth]~% wol-f3s <i><font color="silver"># Wake all three</font></i> +[paul@earth]~% wol-f3s f0 <i><font color="silver"># Wake only f0</font></i> +[paul@earth]~% wol-f3s shutdown <i><font color="silver"># Shutdown all three via SSH</font></i> </pre> <br /> -<h2 style='display: inline' id='testing-wol'>Testing WoL</h2><br /> +<h2 style='display: inline' id='testing-wol-and-shutdown'>Testing WoL and Shutdown</h2><br /> <br /> -<span>To test the setup, I shutdown all three machines:</span><br /> +<span>To test the setup, I shutdown all three machines using the script's shutdown function:</span><br /> <br /> <!-- Generator: GNU source-highlight 3.1.9 by Lorenzo Bettini http://www.lorenzobettini.it http://www.gnu.org/software/src-highlite --> -<pre>[paul@earth]~% ssh paul@<font color="#000000">192.168</font>.<font color="#000000">1.130</font> <font color="#808080">"doas poweroff"</font> -[paul@earth]~% ssh paul@<font color="#000000">192.168</font>.<font color="#000000">1.131</font> <font color="#808080">"doas poweroff"</font> -[paul@earth]~% ssh paul@<font color="#000000">192.168</font>.<font color="#000000">1.132</font> <font color="#808080">"doas poweroff"</font> +<pre>[paul@earth]~% wol-f3s shutdown +Shutting down f0 (<font color="#000000">192.168</font>.<font color="#000000">1.130</font>)... + ✓ Shutdown <b><u><font color="#000000">command</font></u></b> sent to f0 +Shutting down f1 (<font color="#000000">192.168</font>.<font color="#000000">1.131</font>)... + ✓ Shutdown <b><u><font color="#000000">command</font></u></b> sent to f1 +Shutting down f2 (<font color="#000000">192.168</font>.<font color="#000000">1.132</font>)... + ✓ Shutdown <b><u><font color="#000000">command</font></u></b> sent to f2 + +✓ Shutdown commands sent to all machines. </pre> <br /> <span>After waiting for them to fully power down (about 1 minute), I sent the WoL magic packets:</span><br /> @@ -14040,6 +14075,21 @@ Waking up e8:ff:1e:d7:1c:a0... <br /> <span>This makes WoL very convenient - I can wake the cluster from anywhere in my home, whether I'm on WiFi or ethernet.</span><br /> <br /> +<h2 style='display: inline' id='remote-shutdown-via-ssh'>Remote Shutdown via SSH</h2><br /> +<br /> +<span>While Wake-on-LAN handles powering on the machines remotely, I also added a shutdown function to the script for convenience. The <span class='inlinecode'>wol-f3s shutdown</span> command uses SSH to connect to each machine and execute <span class='inlinecode'>doas poweroff</span>, gracefully shutting them all down.</span><br /> +<br /> +<span>This is particularly useful for power saving - when I'm done working with the cluster for the day, I can simply run:</span><br /> +<br /> +<!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre>[paul@earth]~% wol-f3s shutdown +</pre> +<br /> +<span>And all three machines will shut down cleanly. The next time I need them, a simple <span class='inlinecode'>wol-f3s</span> command wakes them all back up. This combination makes the cluster very energy-efficient while maintaining quick access when needed.</span><br /> +<br /> <h2 style='display: inline' id='bios-configuration'>BIOS Configuration</h2><br /> <br /> <span>For WoL to work reliably, make sure to check the BIOS settings on each Beelink:</span><br /> @@ -1,6 +1,6 @@ # Hello! -> This site was generated at 2026-01-11T10:37:38+02:00 by `Gemtexter` +> This site was generated at 2026-01-11T10:46:34+02:00 by `Gemtexter` Welcome to the foo.zone! diff --git a/uptime-stats.gmi b/uptime-stats.gmi index bd5d4645..acecbdb8 100644 --- a/uptime-stats.gmi +++ b/uptime-stats.gmi @@ -1,6 +1,6 @@ # My machine uptime stats -> This site was last updated at 2026-01-11T10:37:38+02:00 +> This site was last updated at 2026-01-11T10:46:34+02:00 The following stats were collected via `uptimed` on all of my personal computers over many years and the output was generated by `guprecords`, the global uptime records stats analyser of mine. |