安装方法：
- yum 配置仓库安装
- rpm 包安装
- 使用docker官方提供的自动化脚本
这里以 yum 配置仓库安装为例。
确认操作系统版本
确认操作系统是否是 CentOS 7 及以上版本。
cat /etc/os-release
卸载旧版本
sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
yum安装gcc相关
yum -y install gcc
yum -y install gcc-c++
安装需要的软件包
yum install -y yum-utils
设置stable镜像仓库
#yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
更新yum软件包索引
yum makecache fast
安装DOCKER CE
sudo yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
启动Docker
sudo systemctl start docker
测试
[email protected] 15:37:36 [pwd:/home/dmdba/dmdbms/data/DMDB]# docker version
Client: Docker Engine - Community
Version: 24.0.6
API version: 1.43
Go version: go1.20.7
Git commit: ed223bc
Built: Mon Sep 4 12:33:07 2023
OS/Arch: linux/amd64
Context: default
Server: Docker Engine - Community
Engine:
Version: 24.0.6
API version: 1.43 (minimum version 1.12)
Go version: go1.20.7
Git commit: 1a79695
Built: Mon Sep 4 12:32:10 2023
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.6.22
GitCommit: 8165feabfdfe38c65b599c4993d227328c231fca
runc:
Version: 1.1.8
GitCommit: v1.1.8-0-g82f18fe
docker-init:
Version: 0.19.0
GitCommit: de40ad0
[email protected] 15:39:43 [pwd:/home/dmdba/dmdbms/data/DMDB]# docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
719385e32844: Pull complete
Digest: sha256:4f53e2564790c8e7856ec08e384732aa38dc43c52f02952483e3f003afbf23db
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/
卸载
systemctl stop docker
yum remove docker-ce docker-ce-cli containerd.io
rm -rf /var/lib/docker
rm -rf /var/lib/containerd
配置阿里云镜像加速器
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<- 'EOF'
{
"registry-mirrors": ["https://aa25.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker