docker-compose配置zookeeper分佈式集群

docker-compose配置zookeeper分佈式集群

$ 前言

• 記錄一次,在docker swarm 下利用docker-compose創建的3個節點的zookeer分佈式集群.

首先創建一個Docker網卡

<code>#創建swarm網絡
docker network create -d overlay service_ov_net  --attachable  --subnet 172.169.0.0/16 --gateway 
/<code>

zookeeper配置 zk.yml 配置說明

• x-logging 配置docker容器的日誌文件大小最大256m 最多3個
• networks 指定網絡為我們上面創建的網絡
• volumes 不需要刻意創建,docker默認會在/var/lib/docker/volume/ 進行創建
• ZOO_MY_ID: 配置各個節點的ID
• ZOO_SERVERS: server.1 配置各個節點的連接地址
• ZOO_AUTOPURGE_PURGEINTERVAL: 配置1個小時清理一下zk日誌
• ZOO_AUTOPURGE_SNAPRETAINCOUNT: 配置最多保留3個zk日誌

zk.yml 源配置

<code>version: '3.4'

x-logging:
  &default-logging
  options:
    max-size: '256m'
    max-file: '3'
  driver: json-file 

  
networks:
  ov_net:
    external:
      name: service_ov_net

volumes:
  zk-1-data:
  zk-2-data:
  zk-3-data:
  zk-1-datalog:
  zk-2-datalog:
  zk-3-datalog:
    
services:
  zk-1:
    image: zookeeper:3.4.14
    logging: *default-logging
    restart: always
    hostname: zk-1 
    ports:
        - "2181:2181"
    volumes:
        - zk-1-data:/data 
        - zk-1-datalog:/datalog 
    environment:
      ZOO_MY_ID: 1
      ZOO_SERVERS: server.1=0.0.0.0:2888:3888 server.2=zk-2:2888:3888 server.3=zk-3:2888:3888
      ZOO_AUTOPURGE_PURGEINTERVAL: 1
      ZOO_AUTOPURGE_SNAPRETAINCOUNT: 3
    networks:
        ov_net:
            ipv4_address: 172.169.11.101
  zk-2:
    image: zookeeper:3.4.14
    logging: *default-logging
    restart: always
    hostname: zk-2 
    volumes:
        - zk-2-data:/data 
        - zk-2-datalog:/datalog
    environment:
      ZOO_MY_ID: 2
      ZOO_SERVERS: server.1=zk-1:2888:3888 server.2=0.0.0.0:2888:3888 server.3=zk-3:2888:3888
      ZOO_AUTOPURGE_PURGEINTERVAL: 1
      ZOO_AUTOPURGE_SNAPRETAINCOUNT: 3
    networks:
        ov_net:
            ipv4_address: 172.169.11.102
  zk-3: 

    image: zookeeper:3.4.14
    logging: *default-logging
    restart: always
    hostname: zk-3 
    volumes:
        - zk-3-data:/data 
        - zk-3-datalog:/datalog
    environment:
      ZOO_MY_ID: 3
      ZOO_SERVERS: server.1=zk-1:2888:3888 server.2=zk-2:2888:3888 server.3=0.0.0.0:2888:3888
      ZOO_AUTOPURGE_PURGEINTERVAL: 1
      ZOO_AUTOPURGE_SNAPRETAINCOUNT: 3
    networks:
        ov_net:
            ipv4_address: 172.169.11.103
/<code>

$ 附帶上自己docker環境下常用到的命令

<code>####docker啟動單個容器
docker start 容器名
####docker停止單個容器
docker stop 容器名
####停止刪除所有容器
docker stop $(docker ps -a -q)  && docker rm   $(docker ps -a -q) -f
####刪除所有鏡像
docker image rm $(docker images -q) -f
####刪除無用的卷
docker volume prune
####查看docker日誌文件大小
ls -lh $(find /var/lib/docker/containers/ -name *-json.log)
####查找大文件
find / -type f -size +100M
####docker-compose方式創建啟動容器
docker-compose -f zk.yml up -d
####docker-compose方式停止銷燬容器
docker-compose -f zk.yml down/<code>

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關鍵字: JSON Docker 集群