1. 前置安裝

   1. 確保你的系統是64位

      $ sudo apt-get install     apt-transport-https     ca-certificates     curl     software-properties-common　　
      

       

2. 添加Docker官方GPG key

   1. $ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
      

      验证key

      $ sudo apt-key fingerprint 0EBFCD88
      

      确保key fingerprint是 ：9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88

3. 安装仓库

   1. $ sudo add-apt-repository    "deb [arch=amd64] https://download.docker.com/linux/ubuntu    $(lsb_release -cs)    stable"
      

       

       

4. 安装Docker

   1. 
      

      $ sudo apt-get update
      $ sudo apt-get install docker-ce

       

5. 测试Doker

   1.  

      $ sudo docker run hello-world
      

      看到如下输出则表示安装成功：

   2. Unable to find image ‘hello-world:latest‘ locally
      latest: Pulling from library/hello-world
      78445dd45222: Pull complete
      Digest: sha256:c5515758d4c5e1e838e9cd307f6c6a0d620b5e07e6f927b07d05f6d12a1ac8d7
      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 ID:
       https://cloud.docker.com/
      
      For more examples and ideas, visit:
       https://docs.docker.com/engine/userguide/
      
      
      

PS：本文适用amd64位的ubuntu系统

Ubuntu 16.04 安裝Docker