一文搞懂Docker的安装
h：ttps://blog.csdn.net/qq_44895681/article/details/105540702
环境
CentOS 7.5
Docker 20.10.2
Mysql 5.7
安装Mysql数据库
1.拉取mysql 5.7镜像
docker pull mysql:5.7
[root@es-node22 ~]# docker pull mysql:5.7
5.7: Pulling from library/mysql
72a69066d2fe: Pull complete
93619dbc5b36: Pull complete
99da31dd6142: Pull complete
626033c43d70: Pull complete
37d5d7efb64e: Pull complete
ac563158d721: Pull complete
d2ba16033dad: Pull complete
0ceb82207cd7: Pull complete
37f2405cae96: Pull complete
e2482e017e53: Pull complete
70deed891d42: Pull complete
Digest: sha256:f2ad209efe9c67104167fc609cca6973c8422939491c9345270175a300419f94
Status: Downloaded newer image for mysql:5.7
2.查看镜像库中mysql 5.7镜像
[root@es-node22 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
mysql 5.7 c20987f18b13 13 days ago 448MB
3.创建并启动mysql容器
[root@es-node22 ~]# docker run -itd -p 3306:3306 --name mysql -v /root/mysql/conf:/etc/mysql/conf.d -v /root/mysql/logs:/logs -v /root/mysql/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=root123 mysql:5.7
...
...
9b4ff256f3cf19a9296ff08ee510e0975311af79731bc49c70471d6793956665
注意：将数据、日志、配置文件映射到宿主机指定的文件夹中，创建并启动容器时会自动创建相关的文件夹！
[root@es-node22 ~]# ls /root/mysql/
conf data logs
-i:以交互模式运行容器，通常与 -t 同时使用；
-t:为容器重新分配一个伪输入终端，通常与 -i 同时使用；
-d:后台运行容器，并返回容器ID
-p:将容器的端口映射到本机的端口
-v:将主机目录挂载到容器的目录
-e:设置参数
4.查看启动的mysql容器并拷贝配置文件
[root@es-node22 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9b4ff256f3cf mysql:5.7 "docker-entrypoint.s…" 23 seconds ago Up 20 seconds 0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp mysql
[root@es-node22 ~]# cd mysql/conf/
[root@es-node22 conf]# docker cp mysql:/etc/mysql/my.cnf .
[root@es-node22 conf]# ls
my.cnf
5.查看/root/mysql/data目录是否有数据文件
[root@es-node22 ~]# cd mysql/data/
[root@es-node22 data]# ls
auto.cnf client-cert.pem ibdata1 ibtmp1 private_key.pem server-key.pem
ca-key.pem client-key.pem ib_logfile0 mysql public_key.pem sys
ca.pem ib_buffer_pool ib_logfile1 performance_schema server-cert.pem
6.以退出不中断容器的方式进入Mysql容器
[root@es-node22 conf]# docker exec -it mysql bash
root@9b4ff256f3cf:/# mysql -uroot -proot123
Server version: 5.7.36 MySQL Community Server (GPL)
Copyright (c) 2000, 2021, 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
mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show tables;
+---------------------------+
| Tables_in_mysql |
+---------------------------+
| columns_priv |
| db |
| engine_cost |
| event |
| func |
| general_log |
| gtid_executed |
| help_category |
| help_keyword |
| help_relation |
| help_topic |
| innodb_index_stats |
| innodb_table_stats |
| ndb_binlog_index |
| plugin |
| proc |
| procs_priv |
| proxies_priv |
| server_cost |
| servers |
| slave_master_info |
| slave_relay_log_info |
| slave_worker_info |
| slow_log |
| tables_priv |
| time_zone |
| time_zone_leap_second |
| time_zone_name |
| time_zone_transition |
| time_zone_transition_type |
| user |
+---------------------------+
31 rows in set (0.01 sec)
...
...
7.使用工具连接Mysql容器
↓↓↓↓↓↓
最近刚申请了个微信公众号，上面也会分享一些运维知识，大家点点发财手关注一波，感谢大家。 【原创公众号】：非著名运维 【福利】：公众号回复 “资料” 送运维自学资料大礼包哦！