# ============================================================
# 红动未来 - 从机集群（Host2）
# 主从/集群配置：Redis 从库、PostgreSQL 从库、K3s Agent
# ============================================================
# 前置条件：Host1 已启动 deploy/docker-compose-infra-main.yml
# ============================================================
# 启动：docker compose -f deploy/docker-compose-infra-slave.yml up -d
# 停止：docker compose -f deploy/docker-compose-infra-slave.yml down
# ============================================================

name: redfuture-slave

# ---- 共享变量（部署前修改 Host1 IP） ----
x-vars: &vars
  MASTER_IP: 192.168.0.169
  PG_USER: postgres
  PG_PASSWORD: Bjang09@686^*^
  PG_PRIMARY_PORT: 15432

services:

  # ---- PostgreSQL 从库 (Streaming Replication) ----
  postgres-standby:
    image: docker.m.daocloud.io/pgvector/pgvector:pg16
    container_name: postgres-standby
    restart: unless-stopped
    ports:
      - "15432:5432"
    environment:
      <<: *vars
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: Bjang09@686^*^
      POSTGRES_DB: postgres
    volumes:
      - ../data/postgres-standby:/var/lib/postgresql/data
    entrypoint: ["/bin/sh", "-c"]
    command:
      - |
        set -e
        PGDATA="/var/lib/postgresql/data"
        if [ ! -s "$${PGDATA}/PG_VERSION" ]; then
          echo "[standby] Data empty, running pg_basebackup from $${MASTER_IP}:$${PG_PRIMARY_PORT}..."
          PGPASSWORD="$${PG_PASSWORD}" pg_basebackup \
            -h "$${MASTER_IP}" -p "$${PG_PRIMARY_PORT}" \
            -U $${PG_USER} -D "$${PGDATA}" -P -R \
            -S replication_slot_slave --checkpoint=fast --wal-method=stream
          touch "$${PGDATA}/standby.signal"
          echo "[standby] Bootstrap complete."
        fi
        exec docker-entrypoint.sh \
          postgres \
          -c wal_level=replica \
          -c hot_standby=on \
          -c hot_standby_feedback=on \
          -c "primary_conninfo=host=$${MASTER_IP} port=$${PG_PRIMARY_PORT} user=$${PG_USER} password=$${PG_PASSWORD} application_name=standby1"
    networks:
      - redfuture-slave-net
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 10s
      timeout: 5s
      retries: 5

  # ---- Redis 从库 (Replication) ----
  redis-replica:
    image: docker.m.daocloud.io/redis:7.4.8
    container_name: redis-replica
    restart: unless-stopped
    ports:
      - "6379:6379"
    command:
      - redis-server
      - --replicaof
      - 192.168.0.169
      - "6379"
      - --requirepass
      - Bjang09@686^*^
      - --masterauth
      - Bjang09@686^*^
    volumes:
      - ../data/redis-replica:/data
    networks:
      - redfuture-slave-net
    healthcheck:
      test: ["CMD", "redis-cli", "--raw", "incr", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5
networks:
  redfuture-slave-net:
    driver: bridge