mise-devcontainer-patterns

What problem does it solve?

This skill provides canonical devcontainer.json patterns for projects using mise, enabling repeatable, secure, and predictable container-based development environments across multi-folder workspaces.

Core Features & Use Cases

• OnCreate vs PostCreate: document how to place tool installation in onCreateCommand and source-dependent setup in postCreateCommand to optimize prebuild caching.
• Environment & Trust: configure containerEnv, remoteEnv, and MISE_TRUSTED_CONFIG_PATHS to enforce security and reliability.
• Mounts & User: specify SSH key forwarding and respect a dedicated remoteUser for consistent container behavior.
• Multi-Workspace Patterns: guide organizing multiple repos under /workspaces and trusting their config.

Quick Start

Draft and review a complete devcontainer.json pattern that integrates mise with onCreateCommand, postCreateCommand, mounts, environment shims, and trust rules.

{
  "name": "myproject",
  "image": "mcr.microsoft.com/devcontainers/base:debian",
  "onCreateCommand": "curl https://mise.run | sh && echo 'eval \"$(/home/vscode/.local/bin/mise activate bash)\"' >> /home/vscode/.bashrc && /home/vscode/.local/bin/mise trust && /home/vscode/.local/bin/mise install",
  "postCreateCommand": "mise exec -- npm ci || true",
  "containerEnv": {
    "MISE_TRUSTED_CONFIG_PATHS": "/workspaces"
  },
  "remoteEnv": {
    "PATH": "/home/vscode/.local/share/mise/shims:${containerEnv:PATH}"
  },
  "mounts": [
    "source=${localEnv:HOME}/.ssh,target=/home/vscode/.ssh,type=bind,consistency=cached,readonly"
  ],
  "customizations": {
    "vscode": {
      "extensions": [
        "hverlin.mise-vscode"
      ],
      "settings": {
        "terminal.integrated.defaultProfile.linux": "bash"
      }
    }
  },
  "remoteUser": "vscode",
  "waitFor": "onCreateCommand"
}