Docker creates the Mysql container and connects to the container from the command line
- 2020-06-03 08:47:41
- OfStack
mysql-server: 5.6
docker pull hub.c.163.com/nce2/mysql:5.6
Create the mysql5.6 container 1master+3 slave
docker run --name mysql-master -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave1 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave2 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave3 -d -P hub.c.163.com/nce2/mysql:5.6
Verify container status
[root@bogon ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
907bbbf25d25 hub.c.163.com/nce2/mysql:5.6 "/run.sh" 5 minutes ago Up 5 minutes 3306/tcp mysql-slave3
a81df6c86808 hub.c.163.com/nce2/mysql:5.6 "/run.sh" 5 minutes ago Up 5 minutes 3306/tcp mysql-slave2
375eabd4c598 hub.c.163.com/nce2/mysql:5.6 "/run.sh" 5 minutes ago Up 5 minutes 3306/tcp mysql-slave1
1651d1cab219 hub.c.163.com/nce2/mysql:5.6 "/run.sh" 14 minutes ago Up 14 minutes 3306/tcp mysql-master
Enter the master container from the host command line
docker exec -it mysql-master bash
[root@bogon ~]# docker exec -it mysql-master bash
root@1651d1cab219:/#
Create a database in master, test_docker
root@1651d1cab219:/# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.6.19-v1-log MySQL Community Server (GPL)
Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| #bak_database |
| mysql |
| performance_schema |
| test |
+--------------------+
5 rows in set (0.02 sec)
mysql> create database test_docker;
Query OK, 1 row affected (0.06 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| #bak_database |
| mysql |
| performance_schema |
| test |
| test_docker |
+--------------------+
6 rows in set (0.00 sec)
Create a database, test_docker, in slave1
[root@bogon ~]# docker exec -it mysql-slave bash
Error response from daemon: No such container: mysql-slave
[root@bogon ~]# docker exec -it mysql-slave1 bash
root@375eabd4c598:/# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.6.19-v1-log MySQL Community Server (GPL)
Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| #bak_database |
| mysql |
| performance_schema |
| test |
+--------------------+
5 rows in set (0.00 sec)
The above information shows that master and slave are data isolated, so we can create N mysql containers from docker, and then learn the data model from High Availability MySQL at little cost without worrying about running out of machines.
The subsequent operation
Log in to the master container
[root@bogon ~]# docker exec -it mysql-master bash
root@1651d1cab219:/#
How do I view the container's operating system environment
1 kind is
uname -a
cat /etc/pro
cat /etc/lsb-release
Fortunately, our container is ubuntu14.04
root@1651d1cab219:/# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS"
But with ES64en-ES65en install you can't install anything
You need to change
cd /etc/apt/
There is no vi vim ee editor to append content to sources.list
echo deb http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse >> sources.list
echo deb http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse >> sources.list
echo deb http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse >> sources.list
echo deb http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse >> sources.list
echo deb http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse >> sources.list
echo deb-src http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse >> sources.list
echo deb-src http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse >> sources.list
echo deb-src http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse >> sources.list
echo deb-src http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse >> sources.list
echo deb-src http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse >> sources.list
And then update the source
docker run --name mysql-master -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave1 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave2 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave3 -d -P hub.c.163.com/nce2/mysql:5.6
The first two lines of the sources.list file are then deleted from vim and reinstated under update1.
apt-get update
Install a network tool to get ip
docker run --name mysql-master -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave1 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave2 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave3 -d -P hub.c.163.com/nce2/mysql:5.6
Gets the ip address for master
docker run --name mysql-master -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave1 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave2 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave3 -d -P hub.c.163.com/nce2/mysql:5.6slave needs to do the same
There's another way
You can create Dockerfile and rely on the mysql image to create a new image.
The appellate order is executed via RUN to create a new container that will have installed software.
Finally, it connects to master's container mysql server via slave's docker
master's server mysql account root assigns permissions
mysql> grant all privileges on *.* to root@'%' identified by '';
Query OK, 0 rows affected (0.02 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.02 sec)
The slave server executes the following command
docker run --name mysql-master -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave1 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave2 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave3 -d -P hub.c.163.com/nce2/mysql:5.6Delete the test_docker database on master and see if the slave terminal does not display the deleted library
master operation
docker run --name mysql-master -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave1 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave2 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave3 -d -P hub.c.163.com/nce2/mysql:5.6
slave operation
docker run --name mysql-master -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave1 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave2 -d -P hub.c.163.com/nce2/mysql:5.6
docker run --name mysql-slave3 -d -P hub.c.163.com/nce2/mysql:5.6