docker-compose.yml样例（mysql主从+mycat读写分离）

services:

  m1:

    build: ./master

    container_name: m1

    volumes:

      - /home/ssab/config/mysql-master/:/etc/mysql/:ro

      - /etc/localtime:/etc/localtime:ro

      - /home/ssab/config/hosts:/etc/hosts:ro

    ports:

      - "3309:3306"#暴露mysql的端口

    networks:

      mysql:

        ipv4_address:172.18.0.2

    ulimits:

      nproc:65535

    hostname: m1

    mem_limit:1024m

    restart: always

    environment:

      MYSQL_ROOT_PASSWORD: m1test

  s1:

      build: ./s1

      container_name: s1

      volumes:

        - /home/ssab/config/mysql-s1/:/etc/mysql/:ro

        - /etc/localtime:/etc/localtime:ro

        - /home/ssab/config/hosts:/etc/hosts:ro

      ports:

        - "3307:3306"

      networks:

        mysql:

          ipv4_address:172.18.0.3

      links:

        - m1

     ulimits:

        nproc:65535

      hostname: s1

      mem_limit:1024m

      restart: always

      environment:

        MYSQL_ROOT_PASSWORD: s1test

  s2:

    build: ./s2

    container_name: s2

    volumes:

      - /home/ssab/config/mysql-s2/:/etc/mysql/:ro

      - /etc/localtime:/etc/localtime:ro

      - /home/ssab/config/hosts:/etc/hosts:ro

    ports:

      - "3308:3306"

    links:

      - m1

    networks:

      mysql:

        ipv4_address:172.18.0.4

    ulimits:

      nproc:65535

    hostname: s2

    mem_limit:1024m

    restart: always

    environment:

      MYSQL_ROOT_PASSWORD: s2test

  mycat:# 设置mycat

    build: ./mycat

    container_name: mycat

    volumes:

      - /home/ssab/config/mycat/:/mycat/conf/:ro# mycat配置文件

      - /home/ssab/config/mycat-logs/:/mycat/logs/:rw# mycat日志文件

      - /etc/localtime:/etc/localtime:ro

      - /home/ssab/config/hosts:/etc/hosts:ro

    ports:

      - "8066:8066"# 暴露mycat服务端口

      - "9066:9066"# 暴露mycat管理端口

    links:# mycat可以连接m1 s1 s2

      - m1

      - s1

      - s2

    networks:

      mysql:

        ipv4_address:172.18.0.5

    ulimits:

      nproc:65535

    hostname: mycat

    mem_limit:1024m

    restart: always

networks:

  mysql:

    driver: bridge

    ipam:

      driver: default

      config:

      - subnet:172.18.0.0/24

        gateway:172.18.0.1

mysql的Dockerfile样例：

FROMmysql:5.7.17

MAINTAINER <ssabwork_wjj@163.com>

EXPOSE 3306

CMD ["mysqld"]

mycat的Dockerfile样例：

FROM java:8-jre

MAINTAINER <ssab work_wjj@163.com>

LABEL Description="使用mycat做mysql数据库的读写分离"

ENV mycat-version Mycat-server-1.6-RELEASE-20161028204710-linux.tar.gz

USER root

COPY ./Mycat-server-1.6-RELEASE-20161028204710-linux.tar.gz /

RUN tar -zxf /Mycat-server-1.6-RELEASE-20161028204710-linux.tar.gz

ENV MYCAT_HOME=/mycat

ENV PATH=$PATH:$MYCAT_HOME/bin

WORKDIR $MYCAT_HOME/bin

RUN chmod u+x ./mycat

EXPOSE 80669066

CMD ["./mycat","console"]

docker-compose.yml样例（mysql主从+mycat读写分离）

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