Install Lens on Windows 11 and Connect to a Self-Managed kubeadm Kubernetes Cluster (HA API + Traefik)
Lens is a desktop Kubernetes IDE that connects directly to the Kubernetes API server. The key to a stable setup […]
Containers & Kubernetes
Engineering field notes
Practical DevOps, Infrastructure, and Platform Engineering Notes
Tested walkthroughs from real lab and production-style setups across Linux, cloud, Kubernetes, networking, security, observability, data platforms, IoT, Android, and self-hosted services.
Observability & Operations
Install Metrics Server in HA Mode on a kubeadm Bare-Metal Kubernetes Cluster (Ubuntu 24.04)
Metrics Server collects CPU / memory usage from each node’s Kubelet and exposes it via the Kubernetes Metrics API. This
Identity, Security & PKI
Use the Kubernetes Cluster CA to Sign Each Node’s Kubelet Serving Certificate (kubeadm Bare-Metal Ubuntu 24.04)
If you run Metrics Server (or anything that connects to the Kubelet HTTPS endpoint on 10250), you may see TLS
Observability & Operations
Monitor a Kubernetes Cluster with Zabbix Helm Chart (Proxy + kube-state-metrics) on Ubuntu 24.04
This post shows how to deploy the official Zabbix Kubernetes Helm chart into your cluster, run a Zabbix Proxy inside
Containers & Kubernetes
Use Crane to Work With Docker/OCI Registries on Ubuntu 24.04
crane (from Google’s go-containerregistry) is a CLI that talks to container registries directly. It’s great when you want to list
DevOps & Software Delivery
Show Harbor Image Artifacts in Backstage as an Entity Tab (Harbor API v2 + Backstage Proxy)
This post shows how I added a Harbor tab to my Backstage catalog entities so I can browse Harbor image
DevOps & Software Delivery
Auto-Update Backstage Images in Argo CD with Argo CD Image Updater (Harbor + Kustomize + Application Write-Back)
This is a follow up to my previous post, Argo CD is already managing your kubernetes/ folder with Kustomize enabled.
DevOps & Software Delivery
Build Backstage in Jenkins (Multi-Stage Docker) and Push to Harbor (Short SHA Tags)
This post shows how to build a Backstage app image (a single container image that runs the Backstage backend and
DevOps & Software Delivery
Deploy Backstage with Argo CD (GitOps) on Bare-Metal Kubernetes (Traefik + Wildcard HTTPS + In-Cluster PostgreSQL + Harbor)
This post shows how I manage my Kubernetes Backstage deployment using Argo CD, so Backstage is continuously reconciled from Git
DevOps & Software Delivery
Deploy Argo CD on Bare-Metal Kubernetes with Traefik + Wildcard HTTPS (Ubuntu 24.04)
This post shows how I deploy Argo CD v3.2.2 into my bare-metal kubeadm Kubernetes cluster, expose it through Traefik at: