diff options
| -rw-r--r-- | about/resources.gmi | 202 | ||||
| -rw-r--r-- | gemfeed/2025-12-07-f3s-kubernetes-with-freebsd-part-8.gmi | 44 | ||||
| -rw-r--r-- | gemfeed/2025-12-07-f3s-kubernetes-with-freebsd-part-8.gmi.tpl | 44 | ||||
| -rw-r--r-- | gemfeed/atom.xml | 49 | ||||
| -rw-r--r-- | index.gmi | 2 | ||||
| -rw-r--r-- | uptime-stats.gmi | 2 |
6 files changed, 236 insertions, 107 deletions
diff --git a/about/resources.gmi b/about/resources.gmi index 43472407..bd5fed9d 100644 --- a/about/resources.gmi +++ b/about/resources.gmi @@ -35,110 +35,110 @@ You won't find any links on this site because, over time, the links will break. In random order: -* Raku Recipes; J.J. Merelo; Apress -* DNS and BIND; Cricket Liu; O'Reilly -* The Pragmatic Programmer; David Thomas; Addison-Wesley -* 100 Go Mistakes and How to Avoid Them; Teiva Harsanyi; Manning Publications -* Perl New Features; Joshua McAdams, brian d foy; Perl School -* Higher Order Perl; Mark Dominus; Morgan Kaufmann +* The DevOps Handbook; Gene Kim, Jez Humble, Patrick Debois, John Willis; Audible +* 97 things every SRE should know; Emil Stolarsky, Jaime Woo; O'Reilly +* Pro Puppet; James Turnbull, Jeffrey McCune; Apress +* Raku Fundamentals; Moritz Lenz; Apress +* Systems Performance Tuning; Gian-Paolo D. Musumeci and others...; O'Reilly +* Tmux 2: Productive Mouse-free Development; Brain P. Hogan; The Pragmatic Programmers +* Chaos Engineering - System Resiliency in Practice; Casey Rosenthal and Nora Jones; eBook +* Data Science at the Command Line; Jeroen Janssens; O'Reilly * Funktionale Programmierung; Peter Pepper; Springer -* Leanring eBPF; Liz Rice; O'Reilly -* Clusterbau mit Linux-HA; Michael Schwartzkopff; O'Reilly -* Systemprogrammierung in Go; Frank Müller; dpunkt -* C++ Programming Language; Bjarne Stroustrup; -* Modern Perl; Chromatic ; Onyx Neon Press -* Hands-on Infrastructure Monitoring with Prometheus; Joel Bastos, Pedro Araujo; Packt * The KCNA (Kubernetes and Cloud Native Associate) Book; Nigel Poulton * The Kubernetes Book; Nigel Poulton; Unabridged Audiobook +* 100 Go Mistakes and How to Avoid Them; Teiva Harsanyi; Manning Publications +* Polished Ruby Programming; Jeremy Evans; Packt Publishing +* Distributed Systems: Principles and Paradigms; Andrew S. Tanenbaum; Pearson +* Leanring eBPF; Liz Rice; O'Reilly * The Docker Book; James Turnbull; Kindle -* Concurrency in Go; Katherine Cox-Buday; O'Reilly -* Effective awk programming; Arnold Robbins; O'Reilly -* 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 -* Kubernetes Cookbook; Sameer Naik, Sébastien Goasguen, Jonathan Michaux; O'Reilly -* Chaos Engineering - System Resiliency in Practice; Casey Rosenthal and Nora Jones; eBook -* Systems Performance Tuning; Gian-Paolo D. Musumeci and others...; O'Reilly -* 21st Century C: C Tips from the New School; Ben Klemens; O'Reilly +* Hands-on Infrastructure Monitoring with Prometheus; Joel Bastos, Pedro Araujo; Packt * Seeking SRE: Conversations About Running Production Systems at Scale; David N. Blank-Edelman; eBook -* DevOps And Site Reliability Engineering Handbook; Stephen Fleming; Audible -* Think Raku (aka Think Perl 6); Laurent Rosenfeld, Allen B. Downey; O'Reilly -* The Go Programming Language; Alan A. A. Donovan; Addison-Wesley Professional -* Effective Java; Joshua Bloch; Addison-Wesley Professional +* Java ist auch eine Insel; Christian Ullenboom; +* Clusterbau mit Linux-HA; Michael Schwartzkopff; O'Reilly +* DNS and BIND; Cricket Liu; O'Reilly +* Kubernetes Cookbook; Sameer Naik, Sébastien Goasguen, Jonathan Michaux; O'Reilly * Ultimate Go Notebook; Bill Kennedy -* Site Reliability Engineering; How Google runs production systems; O'Reilly -* Tmux 2: Productive Mouse-free Development; Brain P. Hogan; The Pragmatic Programmers -* Pro Puppet; James Turnbull, Jeffrey McCune; Apress +* Learn You a Haskell for Great Good!; Miran Lipovaca; No Starch Press +* 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 * Terraform Cookbook; Mikael Krief; Packt Publishing -* Amazon Web Services in Action; Michael Wittig and Andreas Wittig; Manning Publications +* Perl New Features; Joshua McAdams, brian d foy; Perl School +* C++ Programming Language; Bjarne Stroustrup; +* The Pragmatic Programmer; David Thomas; Addison-Wesley * Developing Games in Java; David Brackeen and others...; New Riders -* Polished Ruby Programming; Jeremy Evans; Packt Publishing -* Programming Perl aka "The Camel Book"; Tom Christiansen, brian d foy, Larry Wall & Jon Orwant; O'Reilly -* Object-Oriented Programming with ANSI-C; Axel-Tobias Schreiner +* Amazon Web Services in Action; Michael Wittig and Andreas Wittig; Manning Publications +* DevOps And Site Reliability Engineering Handbook; Stephen Fleming; Audible +* Modern Perl; Chromatic ; Onyx Neon Press +* 21st Century C: C Tips from the New School; Ben Klemens; O'Reilly +* Systemprogrammierung in Go; Frank Müller; dpunkt +* Effective Java; Joshua Bloch; Addison-Wesley Professional +* Effective awk programming; Arnold Robbins; O'Reilly * Learn You Some Erlang for Great Good; Fred Herbert; No Starch Press -* 97 things every SRE should know; Emil Stolarsky, Jaime Woo; O'Reilly -* Raku Fundamentals; Moritz Lenz; Apress +* Concurrency in Go; Katherine Cox-Buday; O'Reilly +* Higher Order Perl; Mark Dominus; Morgan Kaufmann +* Site Reliability Engineering; How Google runs production systems; O'Reilly +* The Go Programming Language; Alan A. A. Donovan; Addison-Wesley Professional * Go Brain Teasers - Exercise Your Mind; Miki Tebeka; The Pragmatic Programmers -* Java ist auch eine Insel; Christian Ullenboom; +* Raku Recipes; J.J. Merelo; Apress * Programming Ruby 3.3 (5th Edition); Noel Rappin, with Dave Thomas; The Pragmatic Bookshelf -* Distributed Systems: Principles and Paradigms; Andrew S. Tanenbaum; Pearson -* Data Science at the Command Line; Jeroen Janssens; O'Reilly -* Learn You a Haskell for Great Good!; Miran Lipovaca; No Starch Press -* The DevOps Handbook; Gene Kim, Jez Humble, Patrick Debois, John Willis; Audible +* Programming Perl aka "The Camel Book"; Tom Christiansen, brian d foy, Larry Wall & Jon Orwant; O'Reilly +* Think Raku (aka Think Perl 6); Laurent Rosenfeld, Allen B. Downey; O'Reilly +* Object-Oriented Programming with ANSI-C; Axel-Tobias Schreiner ## Technical references I didn't read them from the beginning to the end, but I am using them to look up things. The books are in random order: -* Understanding the Linux Kernel; Daniel P. Bovet, Marco Cesati; O'Reilly -* Go: Design Patterns for Real-World Projects; Mat Ryer; Packt -* Algorithms; Robert Sedgewick, Kevin Wayne; Addison Wesley -* The Linux Programming Interface; Michael Kerrisk; No Starch Press * Groovy Kurz & Gut; Joerg Staudemeier; O'Reilly -* BPF Performance Tools - Linux System and Application Observability, Brendan Gregg; Addison Wesley -* Relayd and Httpd Mastery; Michael W Lucas +* Go: Design Patterns for Real-World Projects; Mat Ryer; Packt * Implementing Service Level Objectives; Alex Hidalgo; O'Reilly +* Understanding the Linux Kernel; Daniel P. Bovet, Marco Cesati; O'Reilly +* Relayd and Httpd Mastery; Michael W Lucas +* BPF Performance Tools - Linux System and Application Observability, Brendan Gregg; Addison Wesley +* The Linux Programming Interface; Michael Kerrisk; No Starch Press +* Algorithms; Robert Sedgewick, Kevin Wayne; Addison Wesley ## Self-development and soft-skills books In random order: -* The Good Enough Job; Simone Stolzoff; Ebury Edge +* Stop starting, start finishing; Arne Roock; Lean-Kanban University +* Atomic Habits; James Clear; Random House Business +* The Joy of Missing Out; Christina Crook; New Society Publishers +* Getting Things Done; David Allen +* Ultralearning; Anna Laurent; Self-published via Amazon * Who Moved My Cheese?; Dr. Spencer Johnson; Vermilion -* The Complete Software Developer's Career Guide; John Sonmez; Unabridged Audiobook -* 101 Essays that change the way you think; Brianna Wiest; Audiobook +* Digital Minimalism; Cal Newport; Portofolio Penguin +* The Software Engineer's Guidebook: Navigating senior, tech lead, and staff engineer positions at tech companies and startups; Gergely Orosz; Audiobook +* Slow Productivity; Cal Newport; Penguin Random House +* Coders at Work - Reflections on the craft of programming, Peter Seibel and Mitchell Dorian et al., Audiobook +* Buddah and Einstein walk into a Bar; Guy Joseph Ale, Claire Bloom; Blackstone Publishing * 97 Things Every Engineering Manager Should Know; Camille Fournier; Audiobook -* So Good They Can't Ignore You; Cal Newport; Business Plus +* Eat That Frog; Brian Tracy +* Consciousness: A Very Short Introduction; Susan Blackmore; Oxford Uiversity Press +* The 7 Habits Of Highly Effective People; Stephen R. Covey; Simon & Schuster UK +* Psycho-Cybernetics; Maxwell Maltz; Perigee Books * Never Split the Difference; Chris Voss, Tahl Raz; Random House Business +* The Complete Software Developer's Career Guide; John Sonmez; Unabridged Audiobook * Staff Engineer: Leadership beyond the management track; Will Larson; Audiobook -* Consciousness: A Very Short Introduction; Susan Blackmore; Oxford Uiversity Press -* Meditation for Mortals, Oliver Burkeman, Audiobook +* Ultralearning; Scott Young; Thorsons +* Influence without Authority; A. Cohen, D. Bradford; Wiley * Time Management for System Administrators; Thomas A. Limoncelli; O'Reilly -* Getting Things Done; David Allen +* Search Inside Yourself - The Unexpected path to Achieving Success, Happiness (and World Peace); Chade-Meng Tan, Daniel Goleman, Jon Kabat-Zinn; HarperOne +* The Daily Stoic; Ryan Holiday, Stephen Hanselman; Profile Books * The Bullet Journal Method; Ryder Carroll; Fourth Estate +* The Obstacle Is The Way; Ryan Holiday; Profile Books Ltd * The Power of Now; Eckhard Tolle; Yellow Kite -* Slow Productivity; Cal Newport; Penguin Random House -* The Phoenix Project - A Novel About IT, DevOps, and Helping your Business Win; Gene Kim and Kevin Behr; Trade Select -* Atomic Habits; James Clear; Random House Business -* Psycho-Cybernetics; Maxwell Maltz; Perigee Books -* Digital Minimalism; Cal Newport; Portofolio Penguin -* Ultralearning; Anna Laurent; Self-published via Amazon -* Stop starting, start finishing; Arne Roock; Lean-Kanban University -* Eat That Frog; Brian Tracy -* Search Inside Yourself - The Unexpected path to Achieving Success, Happiness (and World Peace); Chade-Meng Tan, Daniel Goleman, Jon Kabat-Zinn; HarperOne * Deep Work; Cal Newport; Piatkus -* Eat That Frog!; Brian Tracy; Hodder Paperbacks -* The 7 Habits Of Highly Effective People; Stephen R. Covey; Simon & Schuster UK -* The Obstacle Is The Way; Ryan Holiday; Profile Books Ltd * The Off Switch; Mark Cropley; Virgin Books (RE-READ 1ST TIME) -* Ultralearning; Scott Young; Thorsons -* The Joy of Missing Out; Christina Crook; New Society Publishers -* Solve for Happy; Mo Gawdat (RE-READ 1ST TIME) -* The Software Engineer's Guidebook: Navigating senior, tech lead, and staff engineer positions at tech companies and startups; Gergely Orosz; Audiobook -* Buddah and Einstein walk into a Bar; Guy Joseph Ale, Claire Bloom; Blackstone Publishing +* So Good They Can't Ignore You; Cal Newport; Business Plus * 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 -* The Daily Stoic; Ryan Holiday, Stephen Hanselman; Profile Books * Soft Skills; John Sommez; Manning Publications -* Influence without Authority; A. Cohen, D. Bradford; Wiley +* Eat That Frog!; Brian Tracy; Hodder Paperbacks +* Meditation for Mortals, Oliver Burkeman, Audiobook +* 101 Essays that change the way you think; Brianna Wiest; Audiobook +* The Good Enough Job; Simone Stolzoff; Ebury Edge +* The Phoenix Project - A Novel About IT, DevOps, and Helping your Business Win; Gene Kim and Kevin Behr; Trade Select +* 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: -* 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) -* Functional programming lecture; Remote University of Hagen -* Scripting Vim; Damian Conway; O'Reilly Online -* The Well-Grounded Rubyist Video Edition; David. A. Black; O'Reilly Online -* Protocol buffers; O'Reilly Online -* Linux Security and Isolation APIs Training; Michael Kerrisk; 3-day on-site training * Algorithms Video Lectures; Robert Sedgewick; O'Reilly Online -* Developing IaC with Terraform (with Live Lessons); O'Reilly Online -* F5 Loadbalancers Training; 2-day on-site training; F5, Inc. * MySQL Deep Dive Workshop; 2-day on-site training -* Ultimate Go Programming; Bill Kennedy; O'Reilly Online +* The Well-Grounded Rubyist Video Edition; David. A. Black; O'Reilly Online +* Developing IaC with Terraform (with Live Lessons); 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 * AWS Immersion Day; Amazon; 1-day interactive online training +* Protocol buffers; O'Reilly Online +* Functional programming lecture; Remote University of Hagen +* F5 Loadbalancers Training; 2-day on-site training; F5, Inc. +* 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) * Structure and Interpretation of Computer Programs; Harold Abelson and more...; * Apache Tomcat Best Practises; 3-day on-site training -* Cloud Operations on AWS - Learn how to configure, deploy, maintain, and troubleshoot your AWS environments; 3-day online live training with labs; Amazon +* Linux Security and Isolation APIs Training; Michael Kerrisk; 3-day on-site training * The Ultimate Kubernetes Bootcamp; School of Devops; O'Reilly Online +* Ultimate Go Programming; Bill Kennedy; 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 * How CPUs work at https://cpu.land * Advanced Bash-Scripting Guide +* Raku Guide at https://raku.guide ## Podcasts @@ -177,31 +177,31 @@ These are not whole books, but guides (smaller or larger) which I found very use In random order: -* Fork Around And Find Out -* Dev Interrupted -* BSD Now [BSD] -* The ProdCast (Google SRE Podcast) * Deep Questions with Cal Newport -* The Changelog Podcast(s) +* Dev Interrupted * The Pragmatic Engineer Podcast -* Cup o' Go [Golang] -* Backend Banter -* Fallthrough [Golang] -* Modern Mentor -* Pratical AI -* Maintainable * Hidden Brain +* The Changelog Podcast(s) +* The ProdCast (Google SRE Podcast) * Wednesday Wisdom +* Fork Around And Find Out +* Modern Mentor +* Maintainable +* Pratical AI +* Cup o' Go [Golang] +* Fallthrough [Golang] +* BSD Now [BSD] +* Backend Banter ### 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. -* CRE: Chaosradio Express [german] -* Modern Mentor -* Go Time (predecessor of fallthrough) * Java Pub House +* CRE: Chaosradio Express [german] * FLOSS weekly +* Go Time (predecessor of fallthrough) +* Modern Mentor * Ship It (predecessor of Fork Around And Find Out) ## Newsletters I like @@ -210,25 +210,25 @@ This is a mix of tech and non-tech newsletters I am subscribed to. In random ord * The Imperfectionist * Register Spill +* Applied Go Weekly Newsletter * The Valuable Dev +* byteSizeGo * Ruby Weekly * Golang Weekly * The Pragmatic Engineer -* Andreas Brandhorst Newsletter (Sci-Fi author) -* byteSizeGo * VK Newsletter -* Applied Go Weekly Newsletter -* Monospace Mentor * Changelog News +* Andreas Brandhorst Newsletter (Sci-Fi author) +* Monospace Mentor ## 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) * Linux Magazine -* LWN (online only) * Linux User -* freeX (not published anymore) +* LWN (online only) # Formal education diff --git a/gemfeed/2025-12-07-f3s-kubernetes-with-freebsd-part-8.gmi b/gemfeed/2025-12-07-f3s-kubernetes-with-freebsd-part-8.gmi index 5385428d..493fbc3f 100644 --- a/gemfeed/2025-12-07-f3s-kubernetes-with-freebsd-part-8.gmi +++ b/gemfeed/2025-12-07-f3s-kubernetes-with-freebsd-part-8.gmi @@ -130,7 +130,49 @@ NAMESPACE: monitoring STATUS: deployed ``` -The `persistence-values.yaml` configures Prometheus and Grafana to use the NFS-backed persistent volumes I mentioned earlier, ensuring data survives pod restarts. The persistent volume definitions bind to specific paths on the NFS share using `hostPath` volumes—the same pattern used for other services in Part 7: +The `persistence-values.yaml` configures Prometheus and Grafana to use the NFS-backed persistent volumes I mentioned earlier, ensuring data survives pod restarts. It also enables scraping of etcd and kube-controller-manager metrics: + +```yaml +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 +``` + +By default, k3s binds the controller-manager to localhost only, so the "Kubernetes / Controller Manager" dashboard in Grafana will show no data. To expose the metrics endpoint, add the following to `/etc/rancher/k3s/config.yaml` on each k3s server node: + +```sh +[root@r0 ~]# cat >> /etc/rancher/k3s/config.yaml << 'EOF' +kube-controller-manager-arg: + - bind-address=0.0.0.0 +EOF +[root@r0 ~]# systemctl restart k3s +``` + +Repeat for `r1` and `r2`. After restarting all nodes, the controller-manager metrics endpoint will be accessible and Prometheus can scrape it. + +The persistent volume definitions bind to specific paths on the NFS share using `hostPath` volumes—the same pattern used for other services in Part 7: => ./2025-10-02-f3s-kubernetes-with-freebsd-part-7.gmi f3s: Kubernetes with FreeBSD - Part 7: k3s and first pod deployments diff --git a/gemfeed/2025-12-07-f3s-kubernetes-with-freebsd-part-8.gmi.tpl b/gemfeed/2025-12-07-f3s-kubernetes-with-freebsd-part-8.gmi.tpl index 2c8b99c2..e5cd9850 100644 --- a/gemfeed/2025-12-07-f3s-kubernetes-with-freebsd-part-8.gmi.tpl +++ b/gemfeed/2025-12-07-f3s-kubernetes-with-freebsd-part-8.gmi.tpl @@ -94,7 +94,49 @@ NAMESPACE: monitoring STATUS: deployed ``` -The `persistence-values.yaml` configures Prometheus and Grafana to use the NFS-backed persistent volumes I mentioned earlier, ensuring data survives pod restarts. The persistent volume definitions bind to specific paths on the NFS share using `hostPath` volumes—the same pattern used for other services in Part 7: +The `persistence-values.yaml` configures Prometheus and Grafana to use the NFS-backed persistent volumes I mentioned earlier, ensuring data survives pod restarts. It also enables scraping of etcd and kube-controller-manager metrics: + +```yaml +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 +``` + +By default, k3s binds the controller-manager to localhost only, so the "Kubernetes / Controller Manager" dashboard in Grafana will show no data. To expose the metrics endpoint, add the following to `/etc/rancher/k3s/config.yaml` on each k3s server node: + +```sh +[root@r0 ~]# cat >> /etc/rancher/k3s/config.yaml << 'EOF' +kube-controller-manager-arg: + - bind-address=0.0.0.0 +EOF +[root@r0 ~]# systemctl restart k3s +``` + +Repeat for `r1` and `r2`. After restarting all nodes, the controller-manager metrics endpoint will be accessible and Prometheus can scrape it. + +The persistent volume definitions bind to specific paths on the NFS share using `hostPath` volumes—the same pattern used for other services in Part 7: => ./2025-10-02-f3s-kubernetes-with-freebsd-part-7.gmi f3s: Kubernetes with FreeBSD - Part 7: k3s and first pod deployments diff --git a/gemfeed/atom.xml b/gemfeed/atom.xml index d79025a2..d225500a 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>2025-12-26T00:46:52+02:00</updated> + <updated>2025-12-26T01:27:25+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" /> @@ -1083,7 +1083,52 @@ NAMESPACE: monitoring STATUS: deployed </pre> <br /> -<span>The <span class='inlinecode'>persistence-values.yaml</span> configures Prometheus and Grafana to use the NFS-backed persistent volumes I mentioned earlier, ensuring data survives pod restarts. The persistent volume definitions bind to specific paths on the NFS share using <span class='inlinecode'>hostPath</span> volumes—the same pattern used for other services in Part 7:</span><br /> +<span>The <span class='inlinecode'>persistence-values.yaml</span> configures Prometheus and Grafana to use the NFS-backed persistent volumes I mentioned earlier, ensuring data survives pod restarts. It also enables scraping of etcd and kube-controller-manager metrics:</span><br /> +<br /> +<pre> +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 +</pre> +<br /> +<span>By default, k3s binds the controller-manager to localhost only, so the "Kubernetes / Controller Manager" dashboard in Grafana will show no data. To expose the metrics endpoint, add the following to <span class='inlinecode'>/etc/rancher/k3s/config.yaml</span> on each k3s server node:</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>[root@r0 ~]<i><font color="silver"># cat >> /etc/rancher/k3s/config.yaml << 'EOF'</font></i> +kube-controller-manager-arg: + - bind-address=<font color="#000000">0.0</font>.<font color="#000000">0.0</font> +EOF +[root@r0 ~]<i><font color="silver"># systemctl restart k3s</font></i> +</pre> +<br /> +<span>Repeat for <span class='inlinecode'>r1</span> and <span class='inlinecode'>r2</span>. After restarting all nodes, the controller-manager metrics endpoint will be accessible and Prometheus can scrape it.</span><br /> +<br /> +<span>The persistent volume definitions bind to specific paths on the NFS share using <span class='inlinecode'>hostPath</span> volumes—the same pattern used for other services in Part 7:</span><br /> <br /> <a class='textlink' href='./2025-10-02-f3s-kubernetes-with-freebsd-part-7.html'>f3s: Kubernetes with FreeBSD - Part 7: k3s and first pod deployments</a><br /> <br /> @@ -1,6 +1,6 @@ # Hello! -> This site was generated at 2025-12-26T00:46:52+02:00 by `Gemtexter` +> This site was generated at 2025-12-26T01:27:25+02:00 by `Gemtexter` Welcome to the foo.zone! diff --git a/uptime-stats.gmi b/uptime-stats.gmi index 2fa1ff4f..b9efb0e7 100644 --- a/uptime-stats.gmi +++ b/uptime-stats.gmi @@ -1,6 +1,6 @@ # My machine uptime stats -> This site was last updated at 2025-12-26T00:46:52+02:00 +> This site was last updated at 2025-12-26T01:27:25+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. |