CentOS 安装docker
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一、必要条件:64位且内核版本在3.10以上,故选择CentOS 7.2.1511
二、服务器安装
1、到http://mirrors.aliyun.com/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-1511.iso 下载Centos
2、修改yum源
A、wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
B、yum makecache
3、升级到最新 sudo yum update
三、安装docker
1、增加yum源
$ sudo tee /etc/yum.repos.d/docker.repo <<-'EOF'
[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/7/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
2、安装docker
$ sudo yum install docker-engine
3、启动docker服务
$ sudo systemctl enable docker.service
4、启动docker守护
$ sudo systemctl start docker
5、验证
$ sudo docker run --rm hello-world Unable to find image 'hello-world:latest' locally latest: Pulling from library/hello-world c04b14da8d14: Pull complete Digest: sha256:0256e8a36e2070f7bf2d0b0763dbabdd67798512411de4cdcf9431a1feb60fd9 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. 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 Hub account: https://hub.docker.com For more examples and ideas, visit: https://docs.docker.com/engine/userguide/
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