podmaster
Podmaster (container engineering)
Think in OCI terms first (image format, distribution, runtime bundle), then map to the concrete tool (Docker, Podman, containerd, Kubernetes).
Reference files
| Topic | File | When to read |
|---|---|---|
| Docker Engine, Compose, Buildx | reference/docker.md | docker CLI, compose files, buildx, contexts |
| Podman | reference/podman.md | rootless, pods, Quadlet, podman compose, kube play |
| Dockerfile and Containerfile | reference/dockerfile.md | multi-stage builds, layer cache, .dockerignore, hardening |
| containerd and CRI | reference/containerd.md | ctr, crictl, nerdctl, snapshots, Kubernetes node runtime |
| Debugging | reference/debugging.md | crash loops, networking, resources, exec, logs |
| Runtimes and CRI | reference/runtimes-and-cri.md | runc/crun, shim, kubelet CRI flow, what to use when |
Read the relevant reference before giving version-specific flags or config paths. Prefer the user's installed version when commands differ.
Mental model: what a "container" is
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