docker-compose.yml

services:
  db:
    image: postgres:12  # CockroachDB cluster might be a better fit for production deployment
    restart: always
    volumes:
      - /var/lib/postgresql/data
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_DB: squid-archive

  ingest:
    depends_on:
      - db
    restart: on-failure
    image: subsquid/substrate-ingest:firesquid
    command: [
       # polkadot endpoints -- replace with your wss
       "-e", "wss://polkadot-rpc.polkadot.io",
       "-c", "10", # allow up to 20 pending requests for the above endpoint (default is 5)
       # for a local setup use 'host.docker.internal' as a host (instead of localhost or 127.0.0.1
       # e.g. "-e", "ws://host.docker.internal:9944",
       # add another endpoint to increase archiving speed and reliability.
       "-e", "wss://polkadot-rpc.dwellir.com",
       "-e", "wss://polkadot.api.onfinality.io/public-ws",
       "-c", "10",
       "-e", "wss://polkadot.public.curie.radiumblock.io/ws",
       #  "--start-block", "1000000", # uncomment to specify a non-zero start block
       "--prom-port", "9090",
       "--out", "postgres://postgres:postgres@db:5432/squid-archive"
    ]
    ports:
      - "9090:9090" # prometheus port

  gateway:
    depends_on:
      - db
    image: subsquid/substrate-gateway:firesquid
    environment:
      RUST_LOG: "substrate_gateway=info,actix_server=info"
    command: [
       "--database-url", "postgres://postgres:postgres@db:5432/squid-archive",
       "--database-max-connections", "3", # max number of concurrent database connections
       # "--evm-support" # uncomment for chains with Frontier EVM pallet
                         # (e.g. Moonbeam/Moonriver or Astar/Shiden)
    ]
    ports:
      - "8888:8000"

  # Explorer service is optional.
  # It provides rich GraphQL API for querying archived data.
  # Many developers find it very useful for exploration and debugging.
  explorer:
    image: subsquid/substrate-explorer:firesquid
    environment:
      DB_TYPE: postgres # set to `cockroach` for Cockroach DB
      DB_HOST: db
      DB_PORT: "5432"
      DB_NAME: "squid-archive"
      DB_USER: "postgres"
      DB_PASS: "postgres"
    ports:
      - "4444:3000"