docker

install docker

1. 让apt工作在https模式下

   sudo apt-get update
   sudo apt-get install apt-transport-https ca-certificates

2. 添加gpg key

   sudo apt-key adv \
              --keyserver hkp://ha.pool.sks-keyservers.net:80 \
              --recv-keys 58118E89F3A912897C070ADBF76221572C52609D

3. 添加docker sourcelist（不同Ubuntu版本，对应的source不一样）

   echo "deb https://apt.dockerproject.org/repo ubuntu-xenial main" | sudo tee /etc/apt/sources.list.d/docker.list

4. update source

   sudo apt-get update

5. 验证docker 的 apt源

   apt-cache policy docker-engine

6. 安装docker

   sudo apt-get install docker-engine

7. 将当前用户添加到docker group

   sudo groupadd docker
   sudo usermod -aG docker $USER

8. 运行hello world

   docker run hello-world