[Zookeeper] 주키퍼 마스터 찾는 방법

docker-compose.yml

version: '2.1'

services:

  zookeeper-1:
    hostname: zookeeper-1
    container_name: zookeeper-1
    image: zookeeper:3.6
    restart: always
    ports:
      - 2181:2181
    environment:
      ZOO_MY_ID: 1
      ZOO_SERVERS: server.1=zookeeper-1:2888:3888;2181 server.2=zookeeper-2:2888:3888;2181 server.3=zookeeper-3:2888:3888;2181
    volumes:
      - type: bind
        source: ./data/zk-cluster/zookeeper-1/data
        target: /data
        read_only: false

  zookeeper-2:
    hostname: zookeeper-2
    container_name: zookeeper-2
    image: zookeeper:3.6
    restart: always
    ports:
      - 2182:2181
    environment:
      ZOO_MY_ID: 2
      ZOO_SERVERS: server.1=zookeeper-1:2888:3888;2181 server.2=zookeeper-2:2888:3888;2181 server.3=zookeeper-3:2888:3888;2181
    volumes:
      - type: bind
        source: ./data/zk-cluster/zookeeper-2/data
        target: /data
        read_only: false

  zookeeper-3:
    hostname: zookeeper-3
    container_name: zookeeper-3
    image: zookeeper:3.6
    restart: always
    ports:
      - 2183:2181
    environment:
      ZOO_MY_ID: 3
      ZOO_SERVERS: server.1=zookeeper-1:2888:3888;2181 server.2=zookeeper-2:2888:3888;2181 server.3=zookeeper-3:2888:3888;2181
    volumes:
      - type: bind
        source: ./data/zk-cluster/zookeeper-3/data
        target: /data
        read_only: false

  zookeeper-navigator:
    hostname: zookeeper-navigator
    container_name: zookeeper-navigator
    image: elkozmon/zoonavigator:1.1.2
    restart: always
    ports:
      - 9000:9000
    environment:
      HTTP_PORT: 9000
    depends_on:
      - zookeeper-1
      - zookeeper-2
      - zookeeper-3

 

zookeeper-1, zookeeper-2, zookeeper-3에 리더인지 팔로워인지 여부를 확인하는 명령어를 날려보자!!

docker exec zookeeper-1 zkServer.sh status
docker exec zookeeper-2 zkServer.sh status
docker exec zookeeper-3 zkServer.sh status