wordpress-datastar/compose.yaml at main · ephpm/wordpress-datastar · GitHub

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# WordPress + Datastar live demo on ePHPm — two ePHPm containers, one KV bus.
#
#   podman compose up -d      # or: docker compose up -d
#   open http://localhost:9950            (WordPress)
#   curl -N http://localhost:9951/live/stream?post=1   (the realtime layer)
#
# Topology (see README.md for why two containers):
#
#   browser ── pages ────────────► wp   (ePHPm, fpm mode, WordPress)
#      │                            │ raw RESP2 (fsockopen) ─┐
#      └── SSE /live/stream ─────► sse  (ePHPm, worker mode) ◄┘
#                                    └─ native KV store = shared event bus
#
# Ports: 9950 (WP) and 9951 (SSE). 8080/9090/18443 are owned by other
# services on this host — do not remap onto them.

name: wordpress-datastar

services:
  mysql:
    image: docker.io/library/mysql:8.4
    environment:
      MYSQL_ROOT_PASSWORD: rootpw
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress
    volumes:
      - mysql-data:/var/lib/mysql
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "-uwordpress", "-pwordpress"]
      interval: 5s
      timeout: 5s
      retries: 30

  # One-shot installer: downloads WP core, installs it, activates the classic
  # theme and the datastar-live plugin. Talks to MySQL directly (bypasses the
  # ePHPm proxy — see WORDPRESS_DB_HOST in wp-config.php).
  wp-init:
    image: docker.io/library/wordpress:cli
    restart: "no"
    user: "0:0"
    depends_on:
      mysql:
        condition: service_healthy
    environment:
      WORDPRESS_DB_HOST: mysql
    command: ["sh", "/scripts/install-wp.sh"]
    volumes:
      - wp-data:/app
      - ./wp-config.php:/wp-config.php:ro
      - ./plugins/datastar-live:/app/wp-content/plugins/datastar-live:ro
      - ./mu-plugins:/mu-plugins:ro
      - ./scripts:/scripts:ro

  # WordPress on ePHPm in fpm (drop-in) mode. SSE cannot stream in this mode
  # (the SAPI buffers all output; flush() is a no-op) — that is exactly why
  # the realtime layer lives in the `sse` service instead.
  wp:
    image: docker.io/ephpm/ephpm:v0.5.0-php8.4
    depends_on:
      mysql:
        condition: service_healthy
      wp-init:
        condition: service_completed_successfully
      sse:
        condition: service_started
    command: ["ephpm", "serve", "--config", "/app/ephpm.toml"]
    ports:
      - "9950:8080"
    environment:
      # Base URL browsers use to reach the SSE service (host-visible port).
      DATASTAR_LIVE_URL: http://localhost:9951
      # Where the plugin pushes events: the SSE container's RESP listener.
      DATASTAR_LIVE_KV_HOST: sse
      DATASTAR_LIVE_KV_PORT: "6379"
    volumes:
      - wp-data:/app/wordpress
      - ./plugins/datastar-live:/app/wordpress/wp-content/plugins/datastar-live:ro
      - ./ephpm-wp.toml:/app/ephpm.toml:ro

  # The realtime layer: ePHPm in worker mode. Its embedded KV store doubles
  # as the WP→SSE event bus via the RESP listener on 6379 (compose network
  # only — not published to the host).
  sse:
    image: docker.io/ephpm/ephpm:v0.5.0-php8.4
    command: ["ephpm", "serve", "--config", "/app/ephpm.toml"]
    ports:
      - "9951:8080"
    volumes:
      - ./sse:/app/public:ro
      - ./ephpm-sse.toml:/app/ephpm.toml:ro

volumes:
  mysql-data:
  wp-data: