即使与apt-get一起安装也找不到docker命令 [英] docker command not found even though installed with apt-get
问题描述
添加此内容以供他人参考，因为如果存在这样的答案，它可以为我节省10分钟。
Adding this for reference for others because it would have saved me 10 minutes if such an answer existed.
I尝试使用ubuntu 14.0LTS virtualbox安装Docker
I tried installing Docker using ubuntu 14.0LTS virtualbox
sudo apt get install docker
但是，当我尝试运行docker时，出现以下错误
However, when I try running docker it gives me the following error
当前未安装程序 docker。您可以通过键入以下命令进行安装：
sudo apt-get install docker
为什么ubuntu没有看到docker？
Why is ubuntu not seeing docker?
推荐答案
Ubuntu软件包 docker 实际上是指GUI应用程序，而不是受人喜爱的DevOps工具
The Ubuntu package docker actually refers to a GUI application, not the beloved DevOps tool we've come out to look for.
有关docker的说明，可按以下docker页面上的说明进行操作： https://docs.docker.com/engine/install/ubuntu/
The instructions for docker can be followed per instructions on the docker page here: https://docs.docker.com/engine/install/ubuntu/
===更新（感谢@Scott Stensland）===
您现在运行以下安装脚本来获取docker：
You now run the following install script to get docker:
`sudo curl -sSL https://get.docker.com/ | sh`
- 注意：请查看网站上的脚本并确保您具有正确的链接
这将运行安装docker的脚本。请注意脚本的最后一部分：
This will run a script that installs docker. Note the last part of the script:
If you would like to use Docker as a non-root user, you should now consider
adding your user to the "docker" group with something like:
`sudo usermod -aG docker stens`
Remember that you will have to log out and back in for this to take effect!
更新Docker运行：
To update Docker run:
`sudo apt-get update && sudo apt-get upgrade`
有关正在发生的事情的更多详细信息，
参见 docker安装说明文件或@Scott Stensland的回答
For more details on what's going on, See the docker install documentation or @Scott Stensland's answer below
。
===更新：对于那些不喜欢sudo的人| sh ===
在评论中有些提到，将任意脚本作为sudo运行是有风险的。上面的选项是docker提供的便捷脚本，用于简化任务。但是，对于那些注重安全性但又不想阅读脚本的人，可以执行以下操作：
Some in the comments have mentioned that it a risk to run an arbitrary script as sudo. The above option is a convenience script from docker to make the task simple. However, for those that are security-focused but don't want to read the script you can do the following:
- 添加依赖项
sudo apt-get update; \
sudo apt-get install \
apt-transport-https \
ca-certificates \
curl \
gnupg-agent \
software-properties-common
- 添加docker gpg键
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add-
（安全检查，验证密钥指纹 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88
(Security check, verify key fingerprint 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88
$ sudo apt-key fingerprint 0EBFCD88
pub rsa4096 2017-02-22 [SCEA]
9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88
uid [ unknown] Docker Release (CE deb) <docker@docker.com>
sub rsa4096 2017-02-22 [S]
）
- 设置存储库
sudo add-apt-repository \
"deb [arch=amd64] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) \
stable"
- 安装Docker
sudo apt-get update; \
sudo apt-get install docker-ce docker-ce-cli containerd.io
如果需要验证它是否正常运行：
sudo docker hello-world
If you want to verify that it worked run:
sudo docker run hello-world
以下说明了为什么这样命名：
为什么要在ubuntu上安装docker应该是 sudo apt-get install docker.io？
The following explains why it is named like this: Why install docker on ubuntu should be `sudo apt-get install docker.io`?
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