CentOS 7.9 安装 Docker
一、相关博客
【Docker】002-Docker安装
https://blog.csdn.net/qq_29689343/article/details/115261766
这篇笔记不是 Markdown 写的,改起来不方便,重新开一片记录!
二、安装 Docker
1、安装 device-mapper-persistent-data 和 lvm2 两个依赖
device-mapper-persistent-data
是Linux
下的一个存储驱动,Linux
上的高级存储技术。Lvm
的作用则是创建逻辑磁盘分区。
yum install -y yum-utils device-mapper-persistent-data lvm2
# 更新yum软件包索引
yum makecache fast
2、添加阿里云 Docker 镜像源
sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
3、安装 Docker 社区版
yum install docker-ce -y
4、启动
systemctl start docker
systemctl enable docker
# 查看版本
docker -v
# Docker version 24.0.2, build cb74dfc
5、运行测试
先配置阿里云镜像加速器
docker run hello-world
# 显示“……Hello from Docker!……”代表运行成功!
[root@localhost ~]# docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
2db29710123e: Pull complete
Digest: sha256:2498fce14358aa50ead0cc6c19990fc6ff866ce72aeb5546e1d59caac3d0d60f
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/
三、配置阿里云镜像加速器
https://cr.console.aliyun.com/cn-hangzhou/instances
在 Docker
安装完毕后,之后我们去拉取 docker
镜像时,一般默认会去 docker
官方源拉取镜像。但是国内出海网速实在是太慢,所以选择我们更换为 阿里云镜像仓库
源进行镜像下载加速。
登录阿里云官网,打开 阿里云容器镜像服务。点击左侧菜单最下面的 镜像加速器
,选择 CentOS
(如下图)。按照官网的提示执行命令,即可更换 docker
镜像源地址。文章来源:https://www.toymoban.com/news/detail-497918.html
文章来源地址https://www.toymoban.com/news/detail-497918.html
# CentOS
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://wgsbq2gq.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker
到了这里,关于CentOS 7.9 安装 Docker的文章就介绍完了。如果您还想了解更多内容,请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章,希望大家以后多多支持TOY模板网!