zookeeper安裝運作(docker)

拉取鏡像

docker pull zookeeper:latest

擷取鏡像基本資訊

docker inspect zookeeper

mkdir /opt/zookeeper -p

vim /opt/zookeeper/Dockerfile

FROM zookeeper:3.5.6
EXPOSE 2181
EXPOSE 2182
EXPOSE 2183
EXPOSE 2888
EXPOSE 3888
EXPOSE 8080      

單機

sudo mkdir -p /var/lib/zookeeper;sudo chmod -R 777 /var/lib/zookeeper

sudo mkdir -p /var/logs/zookeeper;sudo chmod -R 777 /var/logs/zookeeper

vim /opt/zookeeper/conf/zoo.cfg

dataDir=/var/lib/zookeeper
dataLogDir=/var/logs/zookeeper
clientPort=2181
4lw.commands.whitelist=*
tickTime=2000
initLimit=5
syncLimit=2
autopurge.snapRetainCount=3
autopurge.purgeInterval=0
maxClientCnxns=60
standaloneEnabled=true
admin.enableServer=true      

vim /opt/zookeeper/docker-compose.yml

version: '3.6'
services:
  zookeeper:
    image: v-zookeeper
    container_name: zookeeper
    build: 
      context: .
      dockerfile: Dockerfile
    restart: always
    ports:
      - "2181:2181"
      - "28080:8080"
    volumes: 
      - "/var/lib/zookeeper:/var/lib/zookeeper"
      - "/var/logs/zookeeper:/var/logs/zookeeper"      

僞叢集

sudo mkdir -p /var/lib/zookeeper/node1;sudo chmod -R 777 /var/lib/zookeeper/node1

sudo mkdir -p /var/log/zookeeper/node1/version-2;sudo chmod -R 777 /var/log/zookeeper/node1/version-2

mkdir vim /opt/zookeeper/node1/conf -p

vim /opt/zookeeper/node1/conf/zoo.cfg

dataDir=/data
dataLogDir=/datalog
clientPort=2181
4lw.commands.whitelist=*
tickTime=2000
initLimit=5
syncLimit=2
autopurge.snapRetainCount=3
autopurge.purgeInterval=0
maxClientCnxns=60
admin.enableServer=true
server.1=zookeeper1:2888:3888
server.2=zookeeper2:2888:3888
server.3=zookeeper3:2888:3888
quorumListenOnAllIPs=true      

sudo mkdir -p /var/lib/zookeeper/node2;sudo chmod -R 777 /var/lib/zookeeper/node2

sudo mkdir -p /var/log/zookeeper/node2/version-2;sudo chmod -R 777 /var/log/zookeeper/node2/version-2

mkdir vim /opt/zookeeper/node2/conf -p

vim /opt/zookeeper/node2/conf/zoo.cfg

dataDir=/data
dataLogDir=/datalog
clientPort=2181
4lw.commands.whitelist=*
tickTime=2000
initLimit=5
syncLimit=2
autopurge.snapRetainCount=3
autopurge.purgeInterval=0
maxClientCnxns=60
admin.enableServer=true
server.1=zookeeper1:2888:3888
server.2=zookeeper2:2888:3888
server.3=zookeeper3:2888:3888
quorumListenOnAllIPs=true      

 ZOO_SERVERS中的zookeeper為容器名

sudo mkdir -p /var/lib/zookeeper/node3;sudo chmod -R 777 /var/lib/zookeeper/node3

sudo mkdir -p /var/log/zookeeper/node3/version-2;sudo chmod -R 777 /var/log/zookeeper/node3/version-2

mkdir vim /opt/zookeeper/node3/conf -p

vim /opt/zookeeper/node3/conf/zoo.cfg

dataDir=/data
dataLogDir=/datalog
clientPort=2181
4lw.commands.whitelist=*
tickTime=2000
initLimit=5
syncLimit=2
autopurge.snapRetainCount=3
autopurge.purgeInterval=0
maxClientCnxns=60
admin.enableServer=true
server.1=zookeeper1:2888:3888
server.2=zookeeper2:2888:3888
server.3=zookeeper3:2888:3888
quorumListenOnAllIPs=true      

version: '3.6'
services:
  zookeeper1:
    image: v-zookeeper1
    container_name: zookeeper1
    build: 
      context: .
      dockerfile: Dockerfile
    hostname: zookeeper1
    restart: always
    ports:
      - "2181:2181"
      - "18081:8080"
    environment:
      ZOO_MY_ID: 1
    volumes:
      - "./node1/conf/zoo.cfg:/conf/zoo.cfg"
      - "/var/lib/zookeeper/node1:/data"
      - "/var/log/zookeeper/node1/version-2:/datalog/version-2"
  zookeeper2:
    image: v-zookeeper2
    container_name: zookeeper2
    build: 
      context: .
      dockerfile: Dockerfile
    hostname: zookeeper2
    restart: always
    ports:
      - "2182:2181"
      - "18082:8080"
    environment:
      ZOO_MY_ID: 2
    volumes:
      - "./node2/conf/zoo.cfg:/conf/zoo.cfg"
      - "/var/lib/zookeeper/node2:/data"
      - "/var/log/zookeeper/node2/version-2:/datalog/version-2"
  zookeeper3:
    image: v-zookeeper3
    container_name: zookeeper3
    build: 
      context: .
      dockerfile: Dockerfile
    hostname: zookeeper3
    restart: always
    ports:
      - "2183:2181"
      - "18083:8080"
    environment:
      ZOO_MY_ID: 3
    volumes:
      - "./node3/conf/zoo.cfg:/conf/zoo.cfg"
      - "/var/lib/zookeeper/node3:/data"
      - "/var/log/zookeeper/node3/version-2:/datalog/version-2"      

檢視狀态docker exec -it zookeeper2 bash ./bin/zkServer.sh status

叢集

叢集模式必須設定clientPort的值

sudo mkdir -p /etc/zookeeper;sudo chmod -R 777 /etc/zookeeper

sudo mkdir -p /var/lib/zookeeper/version-2;sudo chmod -R 777 /var/lib/zookeeper/version-2

sudo mkdir -p /var/log/zookeeper/version-2;sudo chmod -R 777 /var/log/zookeeper/version-2

vim /opt/zookeeper/Dockerfile

FROM zookeeper:3.5.6
EXPOSE 2181
EXPOSE 2888
EXPOSE 3888
EXPOSE 8080      

伺服器1、2、3：

vim /etc/zookeeper/zoo.cfg

dataDir=/data
dataLogDir=/datalog
clientPort=2181
4lw.commands.whitelist=*
tickTime=2000
initLimit=5
syncLimit=2
autopurge.snapRetainCount=3
autopurge.purgeInterval=0
maxClientCnxns=60
admin.enableServer=true
server.1=192.168.1.101:2888:3888
server.2=192.168.1.102:2888:3888
server.3=192.168.1.103:2888:3888
quorumListenOnAllIPs=true      

伺服器1：

version: '3.7'
services:
  zookeeper:
    image: v-zookeeper
    container_name: zookeeper
    build: 
      context: .
      dockerfile: Dockerfile
    restart: always
    privileged: true
    ports:
      - "2181:2181"
      - "2888:2888"
      - "3888:3888"
      - "18080:8080"
    environment: 
      - JAVA_OPTS=-Xms256m -Xmx256m -Xmn100m
      - ZOO_MY_ID=1
    volumes: 
      - "/etc/zookeeper/zoo.cfg:/conf/zoo.cfg"
      - "/var/lib/zookeeper/version-2:/data/version-2"
      - "/var/log/zookeeper/version-2:/datalog/version-2"
    logging:
      driver: "json-file"
      options:
        max-size: "200k"
        max-file: "100"      

伺服器2：

version: '3.7'
services:
  zookeeper:
    image: v-zookeeper
    container_name: zookeeper
    build: 
      context: .
      dockerfile: Dockerfile
    restart: always
    privileged: true
    ports:
      - "2181:2181"
      - "2888:2888"
      - "3888:3888"
      - "18080:8080"
    environment: 
      - JAVA_OPTS=-Xms256m -Xmx256m -Xmn100m
      - ZOO_MY_ID=2
    volumes: 
      - "/etc/zookeeper/zoo.cfg:/conf/zoo.cfg"
      - "/var/lib/zookeeper/version-2:/data/version-2"
      - "/var/log/zookeeper/version-2:/datalog/version-2"
    logging:
      driver: "json-file"
      options:
        max-size: "200k"
        max-file: "100"      

伺服器3：

version: '3.7'
services:
  zookeeper:
    image: v-zookeeper
    container_name: zookeeper
    build: 
      context: .
      dockerfile: Dockerfile
    restart: always
    privileged: true
    ports:
      - "2181:2181"
      - "2888:2888"
      - "3888:3888"
      - "18080:8080"
    environment: 
      - JAVA_OPTS=-Xms256m -Xmx256m -Xmn100m
      - ZOO_MY_ID=3
    volumes: 
      - "/etc/zookeeper/zoo.cfg:/conf/zoo.cfg"
      - "/var/lib/zookeeper/version-2:/data/version-2"
      - "/var/log/zookeeper/version-2:/datalog/version-2"
    logging:
      driver: "json-file"
      options:
        max-size: "200k"
        max-file: "100"      

需要配置quorumListenOnAllIPs=true，用以監聽所有網卡，這個和雲伺服器的一些虛拟技術有關。

啟動

cd /opt/zookeeper

docker-compose build

docker-compose up -d --force-recreate

檢視日志

docker logs --tail="500" zookeeper

備份配置檔案

docker cp zookeeper:/conf/zoo.cfg /opt/zookeeper/conf/zoo_bak.cfg

docker cp zookeeper1:/conf/ /opt/zookeeper/zookeeper1_conf_bak/ 

進入容器

docker exec -it zookeeper /bin/bash

檢查容器狀态

docker exec -it zookeeper1 /bin/bash ./bin/zkServer.sh status