Docker自动化双主

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1.载入镜像:

Shell>cd /opt/dtstack

Shell>docker load < mysql-5.6-x86_64.tar

[root@centos7 docker]# docker load < mysql-5.6-x86_64.tar

c411e715031a4: Loading layer [==================================================>] 201.9 MB/201.9 MB

abd40b5d012f: Loading layer [==================================================>] 150.97 MB/150.97 MB

7d082aa6bb0c: Loading layer [==================================================>] 263.3 MB/263.3 MB

173e11cd6be1: Loading layer [==================================================>] 6.656 kB/6.656 kB

bdb04743768e: Loading layer [==================================================>]

sudo

tee /etc/yum.repos.d/docker.repo <<-'EOF'

3.072 kB/3.072 kB

9da6836b8f64: Loading layer [==================================================>] 4.872 MB/4.872 MB

d47abb872b5c: Loading layer [==================================================>] 20.3 MB/20.3 MB

008419e2fbfc: Loading layer [==================================================>] 108.9 MB/108.9 MB

95d9d0bff849: Loading layer [==================================================>] 23.04 kB/23.04 kB

71405897d961: Loading layer [==================================================>] 1.68 MB/1.68 MB

58b14b6eb7df: Loading layer [==================================================>] 49.48 MB/49.48 MB

fffc1c2170a5: Loading layer [==================================================>] 94.12 MB/94.12 MB

9d150f33d82f1: Loading layer [==================================================>] 23.7 MB/23.7 MB

2b9b1be701503: Loading layer [==================================================>] 6.656 kB/6.656 kB

a2018f15089d9: Loading layer [==================================================>] 1.122 GB/1.122 GB

9e274ef73e1d: Loading layer [==================================================>] 13.82 kB/13.82 kB

d0ca45b2e986: Loading layer [==================================================>] 6.144 kB/6.144 kB

Loaded image: dtstack_db_01:5.6

2.列出本地已有镜像:

Shell> docker images REPOSITORY TAG SIZE

dtstack_db_01 5.6 1.92 GB

3.传参脚本说明: #!/bin/bash APP_NAME=db_01

DOCKER_IMAGE=dtstack_db_01:5.6

docker_run(){

docker run -dt \

--restart=always --name $APP_NAME \

IMAGE ID 26e6aa6ed6c2

CREATED 22 hours ago

一、根据 Linux 系统版本号安装 docker

EG:

Centos 7:

1.shell>sudo yum update

2.加带 dockeryum

$

[dockerrepo] name=Docker Repository baseurl=https://yum.dockerproject.org/repo/main/centos/7/ enabled=1

gpgcheck=1 gpgkey=https://yum.dockerproject.org/gpg EOF 3.安装 docker 的包

shell>sudo yum install docker-engine

4.将 docker 加到服务后面

shell>sudo systemctl enable docker.service 5.启动 docker

shell> sudo systemctl start docker

二、将 docker 镜像导入 linux:

5.检查容器运行清况 : Shell>docker ps –a CONTAINER ID

STATUS

IMAGE PORTS

COMMAND

"/bin/sh -c '/home..." 34 seconds ago

NAMES

CREATED

dd47a290ae94

Up 34 seconds

dtstack_db_01:5.6

0.0.0.0:31506->31506/tcp, 31507-3311/tcp db_01

6.进行观察日志信息是否搭建成功:

Shell>docker logs dd47a290ae94

170317 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 log

master change master to

update root password log

SLAVE: 同上述操作: 1.时要更改的: #!/bin/bash APP_NAME=db_01

DOCKER_IMAGE=dtstack_db_01:5.6

docker_run(){ docker run -dt \

基于 DOCKER MySQL 主从搭建:

-p 31506:31506 #映射的端口号

-v /etc/localtime:/etc/localtime:ro \

-v /data/mysql/my31506:/data/mysql \

/data/mysql 目录时要占据

-e "dbport=31506" #dbport

-e "db_root_password=root123" -e "db_master_ip=172.16.1.65" -e "db_slave_ip=172.16.1.86" \

-e "db_tag=master" -e "db_instance=4" \

实例...

-i $DOCKER_IMAGE

} docker_run

4.运行 mysql_docker.sh 脚本 Shell>./mysql_docker.sh

--restart=always \

--name $APP_NAME \

-p 31506:31506 \

-v /etc/localtime:/etc/localtime:ro \

-v /data/mysql/my31506:/data/mysql \

-e "dbport=31506" \

-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,一点不时要修改 -e "db_instance=4" \

-i $DOCKER_IMAGE

}

2.启动 mysql_slave.sh 脚本: Shell>./mysql_docker.sh [root@localhost docker]# docker ps -a

CONTAINER ID CREATED NAMES fb45654c2eda Up 6 minutes docker_run

IMAGE STATUS

dtstack_db_01:5.6 0.0.0.0:31506->31506/tcp, 31507-3311/tcp

COMMAND PORTS

6 minutes ago

db_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 -P31506 -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 -P31506 -e "start slave;show slave statusG" | grep _Running | awk 'NR!=3'

Slave_IO_Running: Yes

Slave_SQL_Running: Yes

Slave_IO_Running: Yes