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centos 7安装部署docker

1.centos 7

在windows下通过vm虚拟机安装centos 7：

VMware-workstation-full-10.0.3-1895310

centos 7

2.要求

操作系统的内核版本不能低于3.10

查看内核版本：

# uname -r

3.安装

3.1通过yum安装

需要联入互联网

$ dudo yum update

3.1.2加入yum repo

$ sudo tee /etc/yum.repos.d/docker.repo <<-'EOF'
[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/$releasever/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
EOF

3.1.3安装docker软件包

$ sudo yum install docker-engine

3.1.4启动docker守护进程

$ sudo service docker start

3.1.5验证docker是否安装成功，在容器里面运行一个官方的测试镜像（hello-world）

$ sudo docker run hello-world
Unable to find image 'hello-world:latest' locally
    latest: Pulling from hello-world
    a8219747be10: Pull complete
    91c95931e552: Already exists
    hello-world:latest: The image you are pulling has been verified. Important: image verification is a tech preview feature and should not be relied on to provide security.
    Digest: sha256:aa03e5d0d5553b4c3473e89c8619cf79df368babd1.7.1cf5daeb82aab55838d
    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.
            (Assuming it was not already locally available.)
     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

    For more examples and ideas, visit:
     http://docs.docker.com/userguide/

显示上面的结果则表示安装成功。

3.2用curl工具通过shell脚本安装

$ sudo yum update

3.2.1执行docker安装脚本

$ curl -fsSL https://get.docker.com/ | sh

3.2.2启动docker

$ sudo service docker start

3.2.3验证

$ sudo docker run hello-world