1. 阿裏雲安裝docker文檔

   官方安裝文檔：

   配置阿裏雲鏡像加速器

   SET UP THE REPOSITORY

   1. Update the apt package index:

      $ sudo apt-get update
      

   2. Install packages to allow apt to use a repository over HTTPS:

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

   3. Add Docker’s official GPG key:

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

      Verify that you now have the key with the fingerprint 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88, by searching for the last 8 characters of the fingerprint.

      $ sudo apt-key fingerprint 0EBFCD88
      
      pub   4096R/0EBFCD88 2017-02-22
            Key fingerprint = 9DC8 5822 9FC7 DD38 854A  E2D8 8D81 803C 0EBF CD88
      uid                  Docker Release (CE deb) <[email protected]>
      sub   4096R/F273FCD8 2017-02-22
       
      

   4. Use the following command to set up the stable repository. You always need the stable repository, even if you want to install builds from the edge or test repositories as well. To add the edge or test repository, add the word edge or test (or both) after the word stable in the commands below.

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

   INSTALL DOCKER CE

   1. Update the apt package index.

      $ sudo apt-get update
      

   2. Install the latest version of Docker CE, or go to the next step to install a specific version:

      $ sudo apt-get install docker-ce
      

      Got multiple Docker repositories?

      If you have multiple Docker repositories enabled, installing or updating without specifying a version in the apt-get install or apt-get update command always installs the highest possible version, which may not be appropriate for your stability needs.

   3. To install a specific version of Docker CE, list the available versions in the repo, then select and install:

      a. List the versions available in your repo:

      $ apt-cache madison docker-ce
      
      docker-ce | 18.03.0~ce-0~ubuntu | https://download.docker.com/linux/ubuntu xenial/stable amd64 Packages
      

      b. Install a specific version by its fully qualified package name, which is package name (docker-ce) “=” version string (2nd column), for example, docker-ce=18.03.0~ce-0~ubuntu.

      $ sudo apt-get install docker-ce=<VERSION>
      

      The Docker daemon starts automatically.

   4. Verify that Docker CE is installed correctly by running the hello-world image.

      $ sudo docker run hello-world

Ubuntu docker 安裝