一个container 是基于一个镜像文件来启动的，下载好镜像，然后创建好container，启动，然后进入container
| [root@VM-0-4-centos ~]# docker pull mysql:8 //下载mysql8版本
8: Pulling from library/mysql
Digest: sha256:92d27b8222bbcf53bc42c70ca7cd1010d6c0527efc61f14980ce77c50932bef4
Status: Downloaded newer image for mysql:8
docker.io/library/mysql:8
[root@VM-0-4-centos ~]# docker image ls //显示系统中已经有的镜像文件
REPOSITORY TAG IMAGE ID CREATED SIZE
mysql 8 d1dc36cf8d9e 2 days ago 519MB
mysql latest d1dc36cf8d9e 2 days ago 519MB
[root@VM-0-4-centos ~]# docker create -p 3307:3306 --name mydiarydatabase -e MYSQL_ROOT_PASSWORD=root mysql:8
//3307是宿主机的端口3306是container的 container名称为mydiarydatabase root账号的密码为root 用mysql:8这个镜像创建container 43a89af48886895f821f106aaae4426dab55d8528092a66b63ce00d90d4f62c2
[root@VM-0-4-centos ~]# docker container ls -a //显示全量的container
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
43a89af48886 mysql:8 "docker-entrypoint.s…" 13 seconds ago Created mydiarydatabase
99a9ce1105e8 mysql:latest "docker-entrypoint.s…" About an hour ago Up About an hour 0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp mysqld1
e7353b445a53 mysql:latest "docker-entrypoint.s…" About an hour ago Created mysqld2
[root@VM-0-4-centos ~]# docker start mydiarydatabase //启动container
mydiarydatabase
[root@VM-0-4-centos ~]# docker exec -it mydiarydatabase bash //进入container
root@43a89af48886:/# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.28 MySQL Community Server - GPL Copyright (c) 2000, 2022, Oracle and/or its affiliates. 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 |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.00 sec) |
