Kubernetes Admission Controllers and Policy Enforcement
How admission controllers intercept API requests before they're persisted, and how OPA/Gatekeeper turn that hook into cluster-wide policy enforcement.
Containers, orchestration, cloud infrastructure, and the practices that keep production reliable.
How admission controllers intercept API requests before they're persisted, and how OPA/Gatekeeper turn that hook into cluster-wide policy enforcement.
How the OCI runtime and image specs standardized what a 'container' actually is, and how containerd/CRI-O/runc fit together beneath Docker and Kubernetes.
How Podman's daemon-less, fork-exec architecture differs from Docker's client-daemon model, and what that means for rootless containers in production.
Diagnose Kubernetes CrashLoopBackOff from events, previous logs, exit status, probes, configuration, and controlled debugging without erasing evidence.
Recover Docker disk space methodically by measuring images, containers, caches, volumes, and logs before pruning, then add safe recurrence controls.
terraform plan or apply hangs, then fails with 'Error acquiring the state lock.' Here's how to confirm it's genuinely stale before force-unlocking it.
How Google's SRE practice in 2003 and the DevOps movement in 2009 emerged independently, solved related delivery problems, and later converged.
A practical Kubernetes guide to blue-green cutovers and cautious canary releases, with health gates, rollback checks, and routing caveats.
Create a secure GitHub Actions pipeline that tests, builds, attests, and deploys immutable container images through OIDC and protected environments.
Configure Kubernetes HPA with verified metrics, resource requests, scaling behavior, load tests, and capacity safeguards for reliable autoscaling.