【docker-基础】ubuntu16.04安装docker

一、经过docker源安装最新版本

依次输入如下命令

$ sudo apt-get install apt-transport-https
$ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys     36A1D7869245C8950F966E92D8576A8BA88D21E9
$ sudo bash -c "echo deb https://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list"
$ sudo apt-get update
$ sudo apt-get install lxc-docker

二、安装以后启动docker服务

$ sudo service docker start
$ sudo docker daemon &  #让daemon运行在后台

三、经过以下脚本检查docker安装是否成功

$ sudo docker run hello-world
INFO[7172] POST /v1.21/containers/create                
INFO[7172] POST /v1.21/containers/16489b236709f52d2ca5cdc7c08ca4625cc6e48574c37a746ed4140baadb891b/attach?stderr=1&stdout=1&stream=1 
INFO[7172] POST /v1.21/containers/16489b236709f52d2ca5cdc7c08ca4625cc6e48574c37a746ed4140baadb891b/start 
INFO[7172] No non-localhost DNS nameservers are left in resolv.conf. Using default external servers : [nameserver 8.8.8.8 nameserver 8.8.4.4] 
INFO[7172] IPv6 enabled; Adding default IPv6 external servers : [nameserver 2001:4860:4860::8888 nameserver 2001:4860:4860::8844] 
WARN[7172] Your kernel does not support OOM notifications: open /sys/fs/cgroup/memory/init.scope/system.slice/docker-16489b236709f52d2ca5cdc7c08ca4625cc6e48574c37a746ed4140baadb891b.scope/memory.oom_control: no such file or directory 

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.
    (amd64)
 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/

INFO[7172] POST /v1.21/containers/16489b236709f52d2ca5cdc7c08ca4625cc6e48574c37a746ed4140baadb891b/wait

看见Hello from Docker!就说明安装成功了

四、解除每次运行docker使用sudo权限

$ sudo usermod -aG docker <yourname>

重启后生效，再次执行docker的指令，直接输入docker CMD就能够不用加sudo了。