My Dev Container Features

A collection of opinionated dev container features built for my own workflows — open for anyone to use.

Usage

Reference features in your devcontainer.json:

{
"image": "mcr.microsoft.com/devcontainers/base:ubuntu",
"features": {
"ghcr.io/sliekens/devcontainer-features/ansible-core:1": {
"collections": "community.general",
},
},
}

Host path pre-create (bind mounts)

Several features bind-mount host paths (CLI auth and config) so state is shared with tools on the host. Docker cannot mount those sources until they exist.

Features that need this declare a host init command under customizations.sliekens.initializeCommand. Add oneinitializeCommand to your devcontainer.json — it runs every feature’s command and composes when you enable more than one:

"initializeCommand": "devcontainer read-configuration --workspace-folder . --include-merged-configuration | jq -r '(.mergedConfiguration.customizations.sliekens // []) | .[] | .initializeCommand' | xargs -I{} bash -c {}"

Requires devcontainer and jq on the host PATH.

Note: This pipeline runs only on Unix-like systems (Linux, macOS, and source code inside WSL2 on Windows). Native Windows (cmd.exe) is not supported — the Dev Containers CLI runs initializeCommand via /bin/sh -c on Unix and cmd.exe /c on native Windows.

As an alternative to automating with the Dev Containers CLI, jq, and xargs, you can pre-create the host paths yourself (see each feature’s README for the exact mkdir / touch recipe).

Available Features

Feature	Description
ansible	Installs ansible and associated CLI tools using pipx
ansible-core	Installs ansible-core via pipx with optional Ansible Galaxy collections and roles
ansible-lint	Installs ansible-lint using pipx
aspire-cli	Installs the Aspire CLI (aspire)
bitwarden-agent-access	Installs the Bitwarden Agent Access CLI (aac) binary from Bitwarden release assets.
bitwarden-cli	Installs the official Bitwarden CLI (bw) binary from Bitwarden release assets.
bitwarden-secrets-manager	Installs the Bitwarden Secrets Manager CLI (bws) binary from Bitwarden release assets.
claude	Installs claude (Claude Code) via the upstream native installer and persists shared state across devcontainers.
codex	Installs the OpenAI codex CLI from the official packaged release assets and persists ~/.codex in shared state across devcontainers.
copilot	Installs the GitHub copilot CLI from official release assets and persists shared ~/.copilot state across devcontainers.
cursor-agent	Installs the Cursor CLI (agent / cursor-agent) from official release assets and persists shared ~/.cursor state across devcontainers.
github-cli	Wraps the official gh (GitHub CLI) feature and adds persistent volume mounts for config and state
grok-build	Installs the xAI grok CLI (Grok Build) via the upstream installer and persists shared ~/.grok state across devcontainers.
mistral-vibe	Installs Mistral Vibe CLI coding agent using Python virtual environment and persists shared state across devcontainers.
mono	Installs mono-complete from the official Mono stable repository
omp	Installs the Oh My Pi coding agent CLI (omp) from official prebuilt release assets (noninteractive, derived from https://omp.sh/install) and persists shared ~/.omp state across devcontainers. Requires Bun 1.3.14+ or Node.js as a peer dependency for the full harness.
opencode	Installs opencode from official GitHub release assets and persists shared state across devcontainers.
pi	Installs the Pi coding agent CLI (pi) via a noninteractive npm install and persists shared ~/.pi state across devcontainers. Requires Node.js 22.19+ with npm as a peer dependency.
rename-user	Renames the default container user (vscode) to match the configured remoteUser, preserving sudo access.
tea	Installs the Gitea CLI (tea) from Gitea releases and enables shell completion via bash_completion.d and zsh site-functions.
worktrunk	Installs the Worktrunk CLI (wt and git-wt) from official GitHub release assets, sets a container-safe system worktree-path default, and persists ~/.config/worktrunk across devcontainers.

Registry

Features are published to: ghcr.io/sliekens/devcontainer-features/<feature-id>:<version>

Version Tags

Each feature is published with multiple version tags following semver:

• :1 - Major version (recommended for most users)
• :1.0 - Minor version
• :1.0.0 - Exact patch version
• :latest - Latest version (may include breaking changes)

Recommendation: Pin to the major version (e.g., :1) to receive bug fixes and minor updates without breaking changes.

Development

See CONTRIBUTING.md for information on:

• Creating new features
• Testing features locally
• Publishing to the registry

Resources

• Dev Container Feature Specification
• Feature Distribution Specification
• Dev Container CLI