services:

  synapse:
    image: ghcr.io/element-hq/synapse:v1.128.0
    restart: unless-stopped
    environment:
      - SYNAPSE_CONFIG_PATH=/data/homeserver.yaml
    volumes:
      - ${DATA_DIR:-./data}/data:/data
    depends_on:
      db:
        condition: service_healthy
    ports:
      - 8448:8448

  db:
    image: postgres:17.5-bookworm
    environment:
      POSTGRES_DB: ${POSTGRES_DB:-synapse}
      POSTGRES_USER: ${POSTGRES_USER:-synapse}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-synapse}
      # ensure the database gets created correctly
      # https://matrix-org.github.io/synapse/latest/postgres.html#set-up-database
      POSTGRES_INITDB_ARGS: "--encoding=UTF-8 --lc-collate=C --lc-ctype=C"
    volumes:
      - ${DATA_DIR:-./data}/db:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-synapse}"]
      interval: 10s
      timeout: 5s
      retries: 3
      start_period: 30s