在AWS EC2的實例(Ubuntu)裏面安裝docker時,使用一般的安裝步驟docker
:~$ sudo apt-get update
:~$ sudo apt-get install docker
安裝完成以後,查看docker版本時,提示docker命令不存在ubuntu
:~$ sudo docker -v
sudo: docker: command not found
在stack overflow上看人說,使用apt-get 安裝的是一個GUI應用程序,而不是咱們要使用的開發工具。經過運行以下腳原本安裝dockercurl
sudo curl -sSL https://get.docker.com/ | sh
在安裝完成後,要注意下面的提示:工具
WARNING: Adding a user to the "docker" group will grant the ability to run containers which can be used to obtain root privileges on the docker host. Refer to https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface for more information.
而後更新docker run命令開發工具
sudo apt-get update && apt-get upgrade
最後,查看docker版本:ui
:~$ sudo docker --version Docker version 1.13.1, build 092cba3
說明docker已經安裝成功url
替換docker,使用docker.iospa
sudo apt-get install docker.io
參考:code
ubuntu 14.04 - docker command not found even though installed with apt-get - Stack Overflow https://stackoverflow.com/questions/30379381/docker-command-not-found-even-though-installed-with-apt-getorm