Centos 8 / TencentOS Server 3.1 安装 docker-ce

目录

• 前言
• [安装 docker-ce](#安装 docker-ce)
• [设置Docker Hub 镜像缓存](#设置Docker Hub 镜像缓存)
• 参考

前言

• TencentOS Server 3.1(与 CentOS 8用户态完全兼容，配套基于社区5.4 LTS 内核深度优化的 tkernel4版本)

安装 docker-ce

1. 先卸载老版本，没有老版本的跳过

   yum remove docker \
              docker-client \
              docker-client-latest \
              docker-common \
              docker-latest \
              docker-latest-logrotate \
              docker-logrotate \
              docker-engine

2. 安装 yum-utils

   yum install -y yum-utils

3. 添加docker-ce.repo

   yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

   PS：更换 Docker CE 仓库镜像 （也可以不更换）
   

4. 安装最新版本

   yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

5. 查看版本

   docker -v

6. 启动docker

   systemctl start docker

7. 运行 hello-world 镜像

   docker run hello-world

设置Docker Hub 镜像缓存

1. 设置 Docker Hub 镜像缓存

   对于使用 systemd 的系统（Ubuntu 16.04+、Debian 8+、CentOS 7）， 在配置文件 /etc/docker/daemon.json 中加入：

   {
     "registry-mirrors": ["https://docker.mirrors.ustc.edu.cn/"]
   }

   重新启动 dockerd：

   systemctl restart docker

2. 检查Docker Hub 镜像缓存是否生效

   如果从结果中看到了如下内容，说明配置成功。

   shell> docker info
   Client: Docker Engine - Community
   Version: 24.0.4
   Context: default
   Debug Mode: false
   Plugins:
   buildx: Docker Buildx (Docker Inc.)
   Version: v0.11.1
   Path: /usr/libexec/docker/cli-plugins/docker-buildx
   compose: Docker Compose (Docker Inc.)
   Version: v2.19.1
   Path: /usr/libexec/docker/cli-plugins/docker-compose
   scan: Docker Scan (Docker Inc.)
   Version: v0.21.0
   Path: /usr/libexec/docker/cli-plugins/docker-scan

   Server:
   Containers: 1
   Running: 0
   Paused: 0
   Stopped: 1
   Images: 2
   Server Version: 24.0.4
   Storage Driver: overlay2
   Backing Filesystem: extfs
   Supports d_type: true
   Using metacopy: false
   Native Overlay Diff: true
   userxattr: false
   Logging Driver: json-file
   Cgroup Driver: cgroupfs
   Cgroup Version: 1
   Plugins:
   Volume: local
   Network: bridge host ipvlan macvlan null overlay
   Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
   Swarm: inactive
   Runtimes: io.containerd.runc.v2 runc
   Default Runtime: runc
   Init Binary: docker-init
   containerd version: 3dce8eb055cbb6872793272b4f20ed16117344f8
   runc version: v1.1.7-0-g860f061
   init version: de40ad0
   Security Options:
   seccomp
   Profile: builtin
   Kernel Version: 5.4.119-19-0009.11
   Operating System: TencentOS Server 3.1 (Final)
   OSType: linux
   Architecture: x86_64
   CPUs: 2
   Total Memory: 7.393GiB
   Name: VM-32-4-tencentos
   ID: ec17c509-a153-4e2f-945e-22dcf02d5732
   Docker Root Dir: /var/lib/docker
   Debug Mode: false
   Experimental: false
   Insecure Registries:
   127.0.0.0/8
   Registry Mirrors:
   https://docker.mirrors.ustc.edu.cn/
   Live Restore Enabled: false

3. 是

参考

https://docs.docker.com/engine/install/centos/

https://mirrors.ustc.edu.cn/help/dockerhub.html

https://mirrors.ustc.edu.cn/