dockers部署

• epel源和centos8源安装

[root@localhost ~]# cat /etc/redhat-release 
//查看系统版本

[root@localhost ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
//安装8版本的技术源

[root@localhost ~]# sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
//云相关的删了

dnf clean all  //清缓存防止有之前的包安装
[root@localhost ~]# yum install -y https://mirrors.aliyun.com/epel/epel-release-latest-8.noarch.rpm
//安装epel源
[root@localhost ~]# sed -i 's|^#baseurl=https://download.example/pub|baseurl=https://mirrors.aliyun.com|' /etc/yum.repos.d/epel* 
//地址还是国外的，把地址改查国内的，在epel.repo文件里
[root@localhost ~]# sed -i 's|^metalink|#metalink|' /etc/yum.repos.d/epel*
[root@localhost ~]# dnf clean all
[root@localhost ~]# dnf makecache 
[root@localhost ~]# dnf list all|grep docker
//看本机有没有8版本的docker
//

• ###docker安装

[root@localhost yum.repos.d]# wget http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
--2022-04-24 17:55:08--  http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
正在解析主机 mirrors.aliyun.com (mirrors.aliyun.com)... 119.36.224.206, 119.36.224.208, 119.36.224.213, ...
正在连接 mirrors.aliyun.com (mirrors.aliyun.com)|119.36.224.206|:80... 已连接。
[root@localhost yum.repos.d]# ls
CentOS-Base.repo   epel.repo                  redhat.repo
docker-ce.repo     epel-testing-modular.repo
epel-modular.repo  epel-testing.repo
[root@localhost yum.repos.d]# vim docker-ce.repo 
[root@localhost yum.repos.d]# cd
[root@localhost ~]# dnf makecache 
[root@localhost ~]# dnf list all|grep docker
containerd.io.x86_64                                              1.5.11-3.1.el8                                         docker-ce-stable
docker-ce.x86_64                                                  3:20.10.14-3.el8                                       
[root@localhost ~]# dnf -y install docker-ce
[root@localhost ~]# dnf -y install docker-ce --allowerasing

• docker加速

[root@localhost ~]# ls /etc/docker
ls: 无法访问'/etc/docker': 没有那个文件或目录
[root@localhost ~]# systemctl start --now docker
[root@localhost ~]# systemctl enable --now docker
Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /usr/lib/systemd/system/docker.service.
[root@localhost ~]# systemctl status docker
● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; enab>
   Active: active (running) since Sun 2022-04-24 19:37:21 CST; >
     Docs: https://docs.docker.com
 Main PID: 465381 (dockerd)
    Tasks: 9
   Memory: 30.7M
   CGroup: /system.slice/docker.service
           └─465381 /usr/bin/dockerd -H fd:// --containerd=/run>

4月 24 19:37:18 localhost.localdomain dockerd[465381]: time="20>
4月 24 19:37:18 localhost.localdomain dockerd[465381]: time="20>

[root@localhost ~]# ls /etc/docker/
key.json
[root@localhost ~]# 
//打开docker服务

平时是用阿里云的加速器

[root@localhost ~]# cd /etc/docker/
[root@localhost docker]# ls
key.json
[root@localhost docker]# vim daemon.json //加入这在阿里云复制的码
{
          "registry-mirrors": ["https://2rdng78w.mirror.aliyuncs.com"]
}
~                   
[root@localhost docker]# systemctl daemon-reload // 加载
[root@localhost docker]# systemctl restart docker // 重启
[root@localhost docker]# cd
[root@localhost ~]# docker info

看到这个说明加速器成功了

docker常用操作
docker version 看版本号

docker event state