warmbly/docker-compose.dev.yml

# Dev mode override. Brings all stateful build steps inside long-
# running containers with bind-mounted source so a save in the host
# triggers an in-container recompile/restart — no docker image
# rebuild, no container recreate.
#
# Activated via `make app` (or `docker compose -f docker-compose.yml
# -f docker-compose.dev.yml up`).
#
# Covers:
#   - backend / consumer / worker-shared-1  (Go via air)
#   - tracking                              (Rust via cargo-watch)
#   - realtime                              (Elixir via mix phx.server)
#
# The default `docker-compose.yml` keeps the production-style images
# untouched; `make up` still uses those.
#
# Caching strategy: each language's build cache lives on a named
# volume whose `name:` skips the per-project prefix, so worktrees
# point at the same physical volumes on the host and starts after the
# first are seconds, not minutes.

services:
  # ─── Go services (backend / consumer / worker) ────────────────────────
  backend:
    image: warmbly-go-dev
    build:
      context: .
      dockerfile: deploy/docker/go-dev.Dockerfile
    environment:
      WARMBLY_CMD: backend
    volumes:
      - .:/app
      - warmbly_gomodcache:/go/pkg/mod
      - warmbly_gocache:/root/.cache/go-build
    # Relax the prod healthcheck instead of disabling it: dev needs to
    # keep one because web, seed and the base consumer all depend on
    # backend with `condition: service_healthy`, and compose refuses to
    # bring up a service whose service_healthy target has no
    # healthcheck.
    #
    # The bigger start_period gives air time to do a cold first compile
    # (Go build cache empty in a fresh worktree → 60-90s isn't unusual).
    # depends_on only gates initial startup, so the brief unhealthy
    # blips on each subsequent rebuild don't bounce dependents.
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8080/health"]
      interval: 10s
      timeout: 3s
      retries: 10
      start_period: 180s

  consumer:
    image: warmbly-go-dev
    build:
      context: .
      dockerfile: deploy/docker/go-dev.Dockerfile
    environment:
      WARMBLY_CMD: consumer
    volumes:
      - .:/app
      - warmbly_gomodcache:/go/pkg/mod
      - warmbly_gocache:/root/.cache/go-build
    depends_on:
      backend:
        condition: service_started
      nats:
        condition: service_healthy

  worker:
    image: warmbly-go-dev
    build:
      context: .
      dockerfile: deploy/docker/go-dev.Dockerfile
    environment:
      WARMBLY_CMD: worker
    volumes:
      - .:/app
      - warmbly_gomodcache:/go/pkg/mod
      - warmbly_gocache:/root/.cache/go-build

  # ─── Rust (tracking) ──────────────────────────────────────────────────
  tracking:
    image: warmbly-rust-dev
    build:
      context: .
      dockerfile: deploy/docker/rust-dev.Dockerfile
    volumes:
      - ./tracking:/app
      - warmbly_cargo_home:/usr/local/cargo
      # Build artifacts default to ./tracking/target inside the bind
      # mount. Redirecting to a named volume keeps the host tree clean
      # and lets the artifact cache survive container recreates.
      - warmbly_cargo_target:/app/target
    healthcheck:
      disable: true

  # ─── Elixir (realtime) ────────────────────────────────────────────────
  realtime:
    image: warmbly-elixir-dev
    build:
      context: .
      dockerfile: deploy/docker/elixir-dev.Dockerfile
    environment:
      # Phoenix uses MIX_ENV=dev for code reload; PHX_HOST/PORT/etc
      # from the base file still apply.
      MIX_ENV: dev
    volumes:
      - ./realtime:/app
      - warmbly_mix_deps:/app/deps
      - warmbly_mix_build:/app/_build
    healthcheck:
      disable: true

volumes:
  # `name:` overrides the default `<project>_<volume>` prefixing. Every
  # worktree that brings up this override mounts the same physical
  # volume, so cache populated in one worktree is warm in every other.
  warmbly_gomodcache:
    name: warmbly_gomodcache
  warmbly_gocache:
    name: warmbly_gocache
  warmbly_cargo_home:
    name: warmbly_cargo_home
  warmbly_cargo_target:
    name: warmbly_cargo_target
  warmbly_mix_deps:
    name: warmbly_mix_deps
  warmbly_mix_build:
    name: warmbly_mix_build