The devcontainer could never actually be built successfully - verified by
building it from scratch for the first time in a while. Found and fixed six
issues:
- kubectl: apt.kubernetes.io was deprecated/shut down by Google in 2023,
switched to the official successor repo pkgs.k8s.io
- docker-ce-cli: apt line hardcoded arch=amd64, breaking the build on
Apple Silicon; resolved dynamically via dpkg --print-architecture
- useradd -G docker failed because only the Docker CLI (no daemon) is
installed, so no package ever creates the docker group; added explicit
groupadd
- oh-my-zsh install had a nested-quoting bug that made the RUN step fail;
simplified to download-then-run instead of one nested `su -c "sh -c ..."`
- sops binary was hardcoded to linux.amd64, only working on arm64 by luck
via Docker Desktop's QEMU emulation; resolved dynamically like docker-ce
- docker.sock was mounted but unusable (permission denied) since the
container's docker group GID never matched the host socket's GID; added
a root entrypoint (docker-init.sh) that reconciles this at container
start, then drops to the vscode user via gosu
Also fixed two stale mas-secrets.sops.yaml references (actual filename is
mas-secret.yaml) in README.md and postCreateCommand.sh, set the vscode
user's default shell to zsh (oh-my-zsh was installed but never used by
default), and documented all of the above plus a build+run verification
snippet in README.md so this class of drift is caught before it goes
unnoticed again.
Verified end-to-end: cold `docker build --no-cache`, then a real container
run against the actual mounted kubeconfig, age key, and docker socket -
kubectl reaches the live cluster, sops decrypts a real secret, and docker
ps talks to the real daemon as the vscode user.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
- Dockerfile with all required tools (kubectl, flux, helm, sops, age, etc.)
- devcontainer.json with VSCode config and extensions
- postCreateCommand.sh for setup verification
- Comprehensive README with setup instructions for macOS, Windows/WSL2, Linux
- Automatic mounts for kubeconfig, SSH keys, age encryption keys
- SOPS_AGE_KEY_FILE and KUBECONFIG pre-configured
Enables development on Windows, macOS, and Linux with consistent environment.
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
Thore CimbalandClaude Sonnet 5
Scrublord MacBadandClaude Haiku 4.5