https://adurr.gitlab.io/tags/observability/ Recent content in Observability on Adur Hugo en <a href="https://creativecommons.org/licenses/by-nc/4.0/" target="_blank" rel="noopener">CC BY-NC 4.0</a> Thu, 28 May 2026 00:00:00 +0000 https://adurr.gitlab.io/projects/homelab-gitops/ Thu, 28 May 2026 00:00:00 +0000 https://adurr.gitlab.io/projects/homelab-gitops/ <p><strong>&ldquo;Two Nodes, One Repo, Zero Manual kubectl&rdquo;</strong></p> <p>Cloud sandboxes are too abstract. You click a button and a Kubernetes cluster appears. You never feel what happens when the CNI silently kills networking and you have to debug it from a dead SSH session. I built this homelab to feel it.</p> <h2 id="the-hardware">The hardware</h2> <p>Two nodes on a home LAN:</p> <ul> <li><strong>Raspberry Pi 4B with 8GB RAM</strong>: runs the K3s control plane. ARM64. Low power, completely silent, sits on a shelf.</li> <li><strong>Old AMD64 box with 4GB RAM</strong>: runs all the actual workloads. Prometheus, Grafana, Loki, ArgoCD, Home Assistant, everything.</li> </ul> <p>Everything is defined in this repository. If the cluster burns down, I can rebuild it from <code>git clone</code> and <code>make</code>.</p>