Docker自动化双主-02自动化脚本制作镜像启动
基于 DOCKER MySQL 主从搭建: 一、根据 Linux 系统版本号安装 dockerEG:Centos 7:1.shell>sudo yum update2.添加 dockeryum$[dockerrepo] name=Docker Repository baseurl=https://yum.dockerproject.org/repo/main/centos/7/ enabled=1gpgcheck=1 gpgkey=https://yum.dockerproject.org/gpg EOF 3.安装 docker 的包shell>sudo yum install docker-engine4.将 docker 加到服务里面shell>sudo systemctl enable docker.service 5.启动 dockershell> sudo systemctl start docker二、将 docker 镜像导入 linux: 镜像文件上传到/opt/dtstack 目录下: 1.载入镜像:Shell>cd /opt/dtstackShell>docker load < mysql-5.6-x86_64.tar[root@centos7 docker]# docker load < mysql-5.6-x86_64.tarc411e76031a4: Loading layer [==================================================>] 201.9 MB/201.9 MBabd40b5d012f: Loading layer [==================================================>] 60.97 MB/60.97 MB7d082aa6bb0c: Loading layer [==================================================>] 263.3 MB/263.3 MB173e11cd6be1: Loading layer [==================================================>] 6.656 kB/6.656 kBbdb04743768e: Loading layer [==================================================>]sudotee /etc/yum.repos.d/docker.repo <<-'EOF'3.072 kB/3.072 kB9da6836b8f64: Loading layer [==================================================>] 4.872 MB/4.872 MBd47abb872b5c: Loading layer [==================================================>] 20.3 MB/20.3 MB008419e2fbfc: Loading layer [==================================================>] 108.9 MB/108.9 MB95d9d0bff849: Loading layer [==================================================>] 23.04 kB/23.04 kB71405897d961: Loading layer [==================================================>] 1.68 MB/1.68 MB58b14b6eb7df: Loading layer [==================================================>] 49.48 MB/49.48 MBfffc1c2170a5: Loading layer [==================================================>] 94.12 MB/94.12 MB9d60f33d82f1: Loading layer [==================================================>] 23.7 MB/23.7 MB2b9b1be70303: Loading layer [==================================================>] 6.656 kB/6.656 kBa2018f6089d9: Loading layer [==================================================>] 1.122 GB/1.122 GB9e274ef73e1d: Loading layer [==================================================>] 13.82 kB/13.82 kBd0ca45b2e986: Loading layer [==================================================>] 6.144 kB/6.144 kBLoaded image: dtstack_db_01:5.62.列出本地已有镜像:Shell> docker images REPOSITORY TAG SIZEdtstack_db_01 5.6 1.92 GB3.传参脚本说明: #!/bin/bash APP_NAME=db_01DOCKER_IMAGE=dtstack_db_01:5.6docker_run(){docker run -dt \--restart=always --name $APP_NAME \IMAGE ID 26e6aa6ed6c2CREATED 22 hours ago -p 3306:3306 #映射的端口号-v /etc/localtime:/etc/localtime:ro \-v /data/mysql/my3306:/data/mysql \/data/mysql 目录必须存在-e "dbport=3306" #dbport-e "db_root_password=root123" -e "db_master_ip=172.16.1.65" -e "db_slave_ip=172.16.1.86" \ 宿主机目录挂载到/data/mysql/myxxx 下， -e "db_tag=master" -e "db_instance=4" \实例...-i $DOCKER_IMAGE} docker_run4.运行 mysql_docker.sh 脚本 Shell>./mysql_docker.sh db 角色 选择性部署多实例。EG:单实例 db_instance=1, 3 则是 3 个 5.检查容器运行状态: Shell>docker ps –a CONTAINER IDSTATUSIMAGE PORTSCOMMAND"/bin/sh -c '/home..." 34 seconds agoNAMESCREATED dd47a290ae94Up 34 secondsdtstack_db_01:5.60.0.0.0:3306->3306/tcp, 3307-3311/tcp db_01 6.进行观察日志信息是否搭建成功:Shell>docker logs dd47a290ae94170317 19:31:09 mysqld_safe Logging to '/data/mysql/log/alert.log'.170317 19:31:09 mysqld_safe Starting mysqld daemon with databases from /data/mysql/data create replicaiton logmaster change master toupdate root password logSLAVE: 同上述操作: 1.需要更改的: #!/bin/bash APP_NAME=db_01DOCKER_IMAGE=dtstack_db_01:5.6docker_run(){ docker run -dt \ --restart=always \--name $APP_NAME \-p 3306:3306 \-v /etc/localtime:/etc/localtime:ro \-v /data/mysql/my3306:/data/mysql \-e "dbport=3306" \-e "db_root_password=root123" \-e "db_master_ip=172.16.1.69" \-e "db_slave_ip=172.16.1.86" \-e "db_tag=slave" #将 tag 标签转换为 slave，其他不需要修改 -e "db_instance=4" \-i $DOCKER_IMAGE}2.启动 mysql_slave.sh 脚本: Shell>./mysql_docker.sh [root@localhost docker]# docker ps -aCONTAINER ID CREATED NAMES fb45654c2eda Up 6 minutes docker_runIMAGE STATUSdtstack_db_01:5.6 0.0.0.0:3306->3306/tcp, 3307-3311/tcpCOMMAND PORTS6 minutes agodb_01"/bin/sh -c '/home..."三、通过外部连接 mysql:检查主从是否正常:1.SLAVE:Shell>mysql -h172.16.1.86 -uroot -proot123 -P3306 -e "start slave;show slave statusG" | grep _Running | awk 'NR!=3'Warning: Using a password on the command line interface can be insecure.2.master:[root@centos7 docker]# mysql -h172.16.1.65 -uroot -proot123 -P3306 -e "start slave;show slave statusG" | grep _Running | awk 'NR!=3' Slave_IO_Running: Yes Slave_SQL_Running: Yes Slave_IO_Running: Yes
