# KalamDB 3-Node Cluster Configuration
#
# This compose file runs a 3-node KalamDB cluster with Raft consensus.
# All nodes share the same network and can communicate via their container names.
#
# Usage:
#   ./cluster.sh start     # Build and start the cluster
#   ./cluster.sh stop      # Stop the cluster
#   ./cluster.sh status    # Check cluster status
#   ./cluster.sh logs      # View all logs
#   ./cluster.sh clean     # Stop and remove all data
#
# Port Mapping:
#   Node 1: HTTP 8081, Raft 9091
#   Node 2: HTTP 8082, Raft 9092
#   Node 3: HTTP 8083, Raft 9093

services:
  # ============================================================================
  # Node 1 - Initial leader candidate
  # ============================================================================
  kalamdb-node1:
    image: jamals86/kalamdb:latest
    container_name: kalamdb-node1
    hostname: kalamdb-node1
    ports:
      - "8081:8080"    # HTTP API
      - "9091:9090"    # Raft gRPC
    volumes:
      - node1_data:/data
      - shared_storage:/data/storage
      # Optional: Override server.toml with your own configuration
      # - ./server1.toml:/config/server.toml:ro
    environment:
      KALAMDB_SERVER_HOST: "0.0.0.0"
      KALAMDB_CLUSTER_ID: "${KALAMDB_CLUSTER_ID:-docker-cluster}"
      KALAMDB_NODE_ID: "${KALAMDB_NODE_ID_NODE1:-1}"
      KALAMDB_CLUSTER_RPC_ADDR: "${KALAMDB_CLUSTER_RPC_ADDR_NODE1:-kalamdb-node1:9090}"
      KALAMDB_CLUSTER_API_ADDR: "${KALAMDB_CLUSTER_API_ADDR_NODE1:-http://kalamdb-node1:8080}"
      KALAMDB_CLUSTER_PEERS: "${KALAMDB_CLUSTER_PEERS_NODE1:-2@kalamdb-node2:9090@http://kalamdb-node2:8080;3@kalamdb-node3:9090@http://kalamdb-node3:8080}"
      KALAMDB_ROOT_PASSWORD: "${KALAMDB_ROOT_PASSWORD:-kalamdb123}"
      KALAMDB_JWT_SECRET: "${KALAMDB_JWT_SECRET:-kalamdb-docker-dev-secret-please-change-32chars}"
    networks:
      - kalamdb-cluster
    restart: unless-stopped
    command: ["/usr/local/bin/kalamdb-server", "/config/server.toml"]
    healthcheck:
      test: ["CMD", "/usr/local/bin/busybox", "wget", "--spider", "-q", "http://127.0.0.1:8080/v1/api/healthcheck"]
      interval: 10s
      timeout: 5s
      start_period: 30s
      retries: 3

  # ============================================================================
  # Node 2
  # ============================================================================
  kalamdb-node2:
    image: jamals86/kalamdb:latest
    container_name: kalamdb-node2
    hostname: kalamdb-node2
    ports:
      - "8082:8080"    # HTTP API
      - "9092:9090"    # Raft gRPC
    volumes:
      - node2_data:/data
      - shared_storage:/data/storage
      # Optional: Override server.toml with your own configuration
      # - ./server2.toml:/config/server.toml:ro
    environment:
      KALAMDB_SERVER_HOST: "0.0.0.0"
      KALAMDB_CLUSTER_ID: "${KALAMDB_CLUSTER_ID:-docker-cluster}"
      KALAMDB_NODE_ID: "${KALAMDB_NODE_ID_NODE2:-2}"
      KALAMDB_CLUSTER_RPC_ADDR: "${KALAMDB_CLUSTER_RPC_ADDR_NODE2:-kalamdb-node2:9090}"
      KALAMDB_CLUSTER_API_ADDR: "${KALAMDB_CLUSTER_API_ADDR_NODE2:-http://kalamdb-node2:8080}"
      KALAMDB_CLUSTER_PEERS: "${KALAMDB_CLUSTER_PEERS_NODE2:-1@kalamdb-node1:9090@http://kalamdb-node1:8080;3@kalamdb-node3:9090@http://kalamdb-node3:8080}"
      KALAMDB_ROOT_PASSWORD: "${KALAMDB_ROOT_PASSWORD:-kalamdb123}"
      KALAMDB_JWT_SECRET: "${KALAMDB_JWT_SECRET:-kalamdb-docker-dev-secret-please-change-32chars}"
    networks:
      - kalamdb-cluster
    depends_on:
      kalamdb-node1:
        condition: service_started
    restart: unless-stopped
    command: ["/usr/local/bin/kalamdb-server", "/config/server.toml"]
    healthcheck:
      test: ["CMD", "/usr/local/bin/busybox", "wget", "--spider", "-q", "http://127.0.0.1:8080/v1/api/healthcheck"]
      interval: 10s
      timeout: 5s
      start_period: 30s
      retries: 3

  # ============================================================================
  # Node 3
  # ============================================================================
  kalamdb-node3:
    image: jamals86/kalamdb:latest
    container_name: kalamdb-node3
    hostname: kalamdb-node3
    ports:
      - "8083:8080"    # HTTP API
      - "9093:9090"    # Raft gRPC
    volumes:
      - node3_data:/data
      - shared_storage:/data/storage
      # Optional: Override server.toml with your own configuration
      # - ./server3.toml:/config/server.toml:ro
    environment:
      KALAMDB_SERVER_HOST: "0.0.0.0"
      KALAMDB_CLUSTER_ID: "${KALAMDB_CLUSTER_ID:-docker-cluster}"
      KALAMDB_NODE_ID: "${KALAMDB_NODE_ID_NODE3:-3}"
      KALAMDB_CLUSTER_RPC_ADDR: "${KALAMDB_CLUSTER_RPC_ADDR_NODE3:-kalamdb-node3:9090}"
      KALAMDB_CLUSTER_API_ADDR: "${KALAMDB_CLUSTER_API_ADDR_NODE3:-http://kalamdb-node3:8080}"
      KALAMDB_CLUSTER_PEERS: "${KALAMDB_CLUSTER_PEERS_NODE3:-1@kalamdb-node1:9090@http://kalamdb-node1:8080;2@kalamdb-node2:9090@http://kalamdb-node2:8080}"
      KALAMDB_ROOT_PASSWORD: "${KALAMDB_ROOT_PASSWORD:-kalamdb123}"
      KALAMDB_JWT_SECRET: "${KALAMDB_JWT_SECRET:-kalamdb-docker-dev-secret-please-change-32chars}"
    networks:
      - kalamdb-cluster
    depends_on:
      kalamdb-node1:
        condition: service_started
    restart: unless-stopped
    command: ["/usr/local/bin/kalamdb-server", "/config/server.toml"]
    healthcheck:
      test: ["CMD", "/usr/local/bin/busybox", "wget", "--spider", "-q", "http://127.0.0.1:8080/v1/api/healthcheck"]
      interval: 10s
      timeout: 5s
      start_period: 30s
      retries: 3

# ============================================================================
# Cluster Network
# ============================================================================
networks:
  kalamdb-cluster:
    driver: bridge
    ipam:
      config:
        - subnet: 172.28.0.0/16

# ============================================================================
# Persistent Volumes
# ============================================================================
volumes:
  node1_data:
    driver: local
  node2_data:
    driver: local
  node3_data:
    driver: local
  shared_storage:
    driver: local