centos8启动docker-mysql8容器

【README】

本文记录了 centos8 安装，启动mysql8的docker容器的步骤；

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【1】安装mysql8 docker容器

步骤1， 查看mysql8 docker镜像版本 ；

最简单的方式是上  Docker Hubhttps://hub.docker.com/直接搜索mysql，查看其 tag，如下：

   步骤2，下载 mysql:8.0.26 版本镜像；

# 查看本地所有镜像
[root@centos204 ~]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED       SIZE
tomcat        latest    4ce9babdd885   2 days ago    680MB
hello-world   latest    feb5d9fea6a5   3 weeks ago   13.3kB

# 下载 mysql 8.0.26 镜像 
[root@centos204 ~]# docker pull mysql:8.0.26
8.0.26: Pulling from library/mysql
b380bbd43752: Pull complete 
f23cbf2ecc5d: Pull complete 
30cfc6c29c0a: Pull complete 
b38609286cbe: Pull complete 
8211d9e66cd6: Pull complete 
2313f9eeca4a: Pull complete 
7eb487d00da0: Pull complete 
a5d2b117a938: Pull complete 
1f6cb474cd1c: Pull complete 
896b3fd2ab07: Pull complete 
532e67ebb376: Pull complete 
233c7958b33f: Pull complete 
Digest: sha256:5d52dc010398db422949f079c76e98f6b62230e5b59c0bf7582409d2c85abacb
Status: Downloaded newer image for mysql:8.0.26
docker.io/library/mysql:8.0.26

# 查看本地所有镜像 
[root@centos204 ~]# 
[root@centos204 ~]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED       SIZE
tomcat        latest    4ce9babdd885   2 days ago    680MB
mysql         8.0.26    9da615fced53   2 days ago    514MB
hello-world   latest    feb5d9fea6a5   3 weeks ago   13.3kB
[root@centos204 ~]# 

步骤3，启动mysql容器

# 启动mysql容器
[root@centos204 ~]# docker run -d --name mysql01 mysql:8.0.26
9c44ea82b1507e6bce54b69a786066ae56cb95c36411efa1cee4695e6c39525f

# 查看容器列表 ，exited 表示启动失败；或未启动
[root@centos204 ~]# docker ps -a
CONTAINER ID   IMAGE          COMMAND                  CREATED          STATUS                       PORTS                                       NAMES
9c44ea82b150   mysql:8.0.26   "docker-entrypoint.s…"   12 seconds ago   Exited (1) 4 seconds ago                                                 mysql01
99e3813639c8   tomcat         "catalina.sh run"        11 hours ago     Exited (255) 2 minutes ago   0.0.0.0:8886->8080/tcp, :::8886->8080/tcp   naughty_maxwell
e7f01a261ee8   tomcat         "catalina.sh run"        11 hours ago     Exited (255) 2 minutes ago   0.0.0.0:8887->8080/tcp, :::8887->8080/tcp   beautiful_proskuriakova
0b1be1a3dcd2   tomcat         "catalina.sh run"        11 hours ago     Exited (255) 2 minutes ago   0.0.0.0:8888->8080/tcp, :::8888->8080/tcp   modest_heyrovsky
0a5b713c0021   hello-world    "/hello"                 35 hours ago     Exited (0) 35 hours ago                                                  frosty_turing

# 查看mysql容器日志 
[root@centos204 ~]# docker logs 9c44ea82b150
2021-10-16 01:33:47+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 8.0.26-1debian10 started.
2021-10-16 01:33:51+00:00 [Note] [Entrypoint]: Switching to dedicated user 'mysql'
2021-10-16 01:33:51+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 8.0.26-1debian10 started.
# 报错原因 
2021-10-16 01:33:51+00:00 [ERROR] [Entrypoint]: Database is uninitialized and password option is not specified
    You need to specify one of the following:
    - MYSQL_ROOT_PASSWORD
    - MYSQL_ALLOW_EMPTY_PASSWORD
    - MYSQL_RANDOM_ROOT_PASSWORD
[root@centos204 ~]# 

步骤4，指定mysql密码为 root，账号默认为root；

# 重新启动mysql docker容器，设置端口映射，密码
[root@centos204 ~]# docker run --name mysql01 -p 3306:3306  -e MYSQL_ROOT_PASSWORD=root -d mysql:8.0.26  
720f23458abfdfafa93707e83f1cbb2ff085eb47d68c91d43088b0da7db97923

# 查看所有docker容器
[root@centos204 ~]# docker ps -a
CONTAINER ID   IMAGE          COMMAND                  CREATED          STATUS                        PORTS                                                  NAMES
720f23458abf   mysql:8.0.26   "docker-entrypoint.s…"   49 seconds ago   Up 45 seconds                 0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp   mysql01
99e3813639c8   tomcat         "catalina.sh run"        11 hours ago     Exited (255) 17 minutes ago   0.0.0.0:8886->8080/tcp, :::8886->8080/tcp              naughty_maxwell
e7f01a261ee8   tomcat         "catalina.sh run"        11 hours ago     Exited (255) 17 minutes ago   0.0.0.0:8887->8080/tcp, :::8887->8080/tcp              beautiful_proskuriakova
0b1be1a3dcd2   tomcat         "catalina.sh run"        12 hours ago     Exited (255) 17 minutes ago   0.0.0.0:8888->8080/tcp, :::8888->8080/tcp              modest_heyrovsky
0a5b713c0021   hello-world    "/hello"                 35 hours ago     Exited (0) 35 hours ago                                                              frosty_turing
[root@centos204 ~]# 

步骤5，开放3306防火墙访问端口

# 开放3306防火墙访问端口
[root@centos204 ~]# firewall-cmd --zone=public --add-port=3306/tcp --permanent    
success
[root@centos204 ~]# firewall-cmd --reload
success
[root@centos204 ~]# firewall-cmd --zone=public --list-ports
8888/tcp 8887/tcp 8886/tcp 3306/tcp

步骤6， 通过dbeaver连接 192.168.163.204:3306

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【2】 启动多个mysql-docker容器

步骤1，开启2个mysql-docker容器，端口为3302 3303；

并设置mysql服务器参数， 参考了 https://hub.docker.com/_/mysql?tab=description

[root@centos204 ~]# docker run --name mysql02 -p 3302:3306  -e MYSQL_ROOT_PASSWORD=root -d mysql:8.0.26 --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci  
3d4caede6869e33e6cd1d267ed80cbc4f89faab8288b64c4b17d5ef40005e91d
[root@centos204 ~]# docker run --name mysql03 -p 3303:3306  -e MYSQL_ROOT_PASSWORD=root -d mysql:8.0.26 --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci  
13132c9e47f35aeaf9e6cc9567a72f9d41850ad42deeb294c4a98ef2e9094034

# 查看所有mysql-docker容器
[root@centos204 ~]# docker ps -a
CONTAINER ID   IMAGE          COMMAND                  CREATED          STATUS                        PORTS                                                  NAMES
13132c9e47f3   mysql:8.0.26   "docker-entrypoint.s…"   2 minutes ago    Up About a minute             33060/tcp, 0.0.0.0:3303->3306/tcp, :::3303->3306/tcp   mysql03
3d4caede6869   mysql:8.0.26   "docker-entrypoint.s…"   3 minutes ago    Up 3 minutes                  33060/tcp, 0.0.0.0:3302->3306/tcp, :::3302->3306/tcp   mysql02
720f23458abf   mysql:8.0.26   "docker-entrypoint.s…"   39 minutes ago   Up 39 minutes                 0.0.0.0:3306->3306/tcp, :::3306->3306/tcp, 33060/tcp   mysql01

步骤2， 开通3302 3303 防火墙网络权限 ；

# 开通3302 3303 端口
[root@centos204 ~]# firewall-cmd --zone=public --add-port=3302/tcp --permanent     
success
[root@centos204 ~]# firewall-cmd --zone=public --add-port=3303/tcp --permanent     
success

[root@centos204 ~]# firewall-cmd --reload
success
[root@centos204 ~]# firewall-cmd --zone=public --list-ports
8888/tcp 8887/tcp 8886/tcp 3306/tcp 3302/tcp 3303/tcp
[root@centos204 ~]# 

步骤3， win10的dbeaver 测试结果；

【补充】

更多mysql-docker容器启动参数，refer2 Docker Hub