services:
  bitcoind:
    build:
      # Repository root, not ./docker: the Dockerfile copies ./docker/run.sh
      # and ./docker/healthy_check.sh, and those paths are resolved against the
      # build context.
      context: .
      dockerfile: ./docker/Dockerfile
    image: registry.bitdeals.org/bitcoind
    environment:
      - BITCOIND_CHAIN=regtest
      - BITCOIND_USER=CHANGE_ME
      - BITCOIND_PASSWORD=CHANGE_ME
      # A fresh regtest chain has no fee history, so an unqualified
      # sendtoaddress is refused until this is set. 0.00001 BTC/kvB = 1 sat/vB.
      - BITCOIND_FALLBACKFEE=0.00001
      # Both are off by default and both are required by an ElectrumX in front
      # of this node -- drop them if nothing indexes it.
      - BITCOIND_TXINDEX=1
      - BITCOIND_TXOSPENDERINDEX=1
    ports:
      # RPC controls the wallet and has no TLS -- loopback only.
      - 127.0.0.1:18443:18443
    volumes:
      - btcdata:/data/.bitcoin

volumes:
  btcdata: