docker-compose.yml

# Dev container stack. Compose publishes ports on the host (more reliable than
# devcontainer forwardPorts in some setups). Interpolation vars (SSH_PORT, etc.)
# can be set in `.devcontainer/.env` (see `.devcontainer/.env.example`).
#
# Internal SSH: devcontainers `sshd` feature listens on 2222, not 22 — map host:2222.
#
# Explicit DNS: containers on external networks (e.g. `dev`) sometimes get no working resolver
# and `uv pip` fails with "dns error" / "failed to lookup address information".
# Override in `.devcontainer/.env`: DEVCONTAINER_DNS_1 / DEVCONTAINER_DNS_2.
services:
  devcontainer:
    build:
      context: ..
      dockerfile: .devcontainer/Dockerfile
    dns:
      - "${DEVCONTAINER_DNS_1:-1.1.1.1}"
      - "${DEVCONTAINER_DNS_2:-8.8.8.8}"
    env_file:
      - ../.env
    environment:
      # Avoid ~/.cache/uv (often root-owned after sshd/common-utils); workspace is bind-mounted as vscode.
      UV_CACHE_DIR: /workspaces/project/.uv-cache
    ports:
      - "${SSH_PORT:-2222}:2222"
      - "${APP_PORT:-1234}:1234"
      - "${DEV_PORT:-8888}:8888"
    volumes:
      - ..:/workspaces/project:cached
    command: sleep infinity
    networks:
      - dev

networks:
  dev:
    external: true