https://chisomonuegbu.dev DevOps & Platform Engineer — writing about Kubernetes, GitOps, MLOps, AI, and self-hosting from the home rack and work. en Tue, 30 Jun 2026 20:18:31 GMT https://chisomonuegbu.dev/posts/site-reverts-to-parked-page https://chisomonuegbu.dev/posts/site-reverts-to-parked-page Mon, 22 Jun 2026 00:00:00 GMT A company site went live on deploy, then silently reverted to a hosting parked page roughly 14 hours later — every time. The fix had nothing to do with the application. A debugging story about chasing the wrong theories before dig told the truth. devops dns debugging hosting nodejs https://chisomonuegbu.dev/posts/self-hosted-github-runners-kubernetes-cluster https://chisomonuegbu.dev/posts/self-hosted-github-runners-kubernetes-cluster Mon, 01 Jun 2026 00:00:00 GMT Why we moved our GitHub Actions workloads to self-hosted runners on Kubernetes at work, the bill that triggered it, and what I'm planning to bring home to the homelab. devops github-actions kubernetes ci homelab https://chisomonuegbu.dev/posts/to-kubernetes-or-not-to-kubernetes https://chisomonuegbu.dev/posts/to-kubernetes-or-not-to-kubernetes Mon, 01 Jun 2026 00:00:00 GMT When does running Kubernetes at home actually pay off, and when is it the wrong tool? A look at intent versus hype for self-hosters. homelab kubernetes self-hosting devops https://chisomonuegbu.dev/posts/talos-kubernetes-migration https://chisomonuegbu.dev/posts/talos-kubernetes-migration Sat, 08 Nov 2025 00:00:00 GMT Why I moved from a single Docker Compose host to a 3-node Talos cluster, what broke in the process, and the surprising places the migration actually paid off. homelab kubernetes talos devops self-hosting https://chisomonuegbu.dev/posts/self-hosted-ollama-proxmox-gpu-passthrough https://chisomonuegbu.dev/posts/self-hosted-ollama-proxmox-gpu-passthrough Sun, 14 Sep 2025 00:00:00 GMT Running local LLMs on consumer GPU hardware via a Proxmox VM with PCIe passthrough. IOMMU groups, VFIO binding, and the boring tuning that makes inference actually fast. homelab mlops self-hosting proxmox llm https://chisomonuegbu.dev/posts/gitops-argocd-sops https://chisomonuegbu.dev/posts/gitops-argocd-sops Tue, 03 Jun 2025 00:00:00 GMT Declarative cluster state in a single Git repo, with encrypted secrets that age-encrypt at rest and decrypt only at sync time. A pattern I've now used across three different homelab clusters. devops gitops kubernetes secrets argocd https://chisomonuegbu.dev/posts/keycloak-homelab-sso https://chisomonuegbu.dev/posts/keycloak-homelab-sso Fri, 20 Dec 2024 00:00:00 GMT Putting every self-hosted service behind one login with the same identity provider I use at work. OIDC for the apps that support it, oauth2-proxy for the ones that don't, and the trade-offs of each. self-hosting sso devops keycloak identity https://chisomonuegbu.dev/posts/migrating-vaultwarden-bitwarden-wireguard https://chisomonuegbu.dev/posts/migrating-vaultwarden-bitwarden-wireguard Mon, 14 Jun 2021 00:00:00 GMT A technical account of migrating a self-hosted password manager from Vaultwarden VPN to OIDCWarden with Keycloak SSO — what went smoothly, what didn't, and what the problems revealed about the underlying systems. containers VPN docker wireguard vaultwarden bitwarden