# ----------------------------------------------------------------------------
# Kamado Pool — development compose
#
# Spins up ckpool-solo pointing at a bitcoind. Expects bitcoind to be
# reachable at the host/port set in the `env` block below. For local
# testing, run bitcoind on regtest/testnet4 and set these accordingly.
#
# The ckpool socket dir is bind-mounted to ./data/run so the (future)
# kamado-api can talk to it from outside the container during development.
# ----------------------------------------------------------------------------
services:
  ckpool:
    build:
      context: ./ckpool
      dockerfile: Dockerfile
    container_name: kamado-ckpool
    restart: unless-stopped
    ports:
      - "3333:3333"
    volumes:
      - ./data/run:/run/ckpool
      - ./data/logs:/var/log/ckpool
    environment:
      # --- Bitcoin Core connection ---
      BITCOIN_RPC_HOST: "host.docker.internal"
      BITCOIN_RPC_PORT: "48332"       # testnet4 default
      BITCOIN_RPC_USER: "${BITCOIN_RPC_USER:-kamado}"
      BITCOIN_RPC_PASSWORD: "${BITCOIN_RPC_PASSWORD:-kamado}"
      BITCOIN_NOTIFY: "true"
      # Optional ZMQ for instant block notifications (recommended)
      ZMQ_BLOCK: "${ZMQ_BLOCK:-}"     # e.g. tcp://host.docker.internal:28332

      # --- Pool settings ---
      POOL_BTCADDRESS: "${POOL_BTCADDRESS:?set POOL_BTCADDRESS in .env}"
      POOL_BTCSIG: "/Kamado Pool dev/"
      STRATUM_PORT: "3333"

      # --- Difficulty ---
      MINDIFF: "1"
      STARTDIFF: "1"
      MAXDIFF: "0"
      # Drop clients idle longer than N seconds (0 = never drop)
      DROPIDLE: "0"

      # --- Logging ---
      SHARE_LOG: "1"
      LOGDIR: "/var/log/ckpool"
      SOCKET_DIR: "/run/ckpool"
    extra_hosts:
      # Allow containers to reach bitcoind running on the host
      - "host.docker.internal:host-gateway"