在Ubuntu 16.04上安装Docker CE

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步骤1:更新所有软件

首先，我们要确保我们使用的是一个干净的系统。运行apt更新。

apt-get update

步骤2:设置存储库

安装包以使apt在HTTPS上使用存储库

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

添加Docker官方的GPG密钥

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

使用下面的命令来设置稳定的存储库。

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

步骤3:安装Docker CE

apt-get update

apt-get install docker-ce

步骤4:创建用户

如果你决定不把Docker作为root用户，你就需要创建一个非root用户。

警告:docker团队授予与root用户等效的特权。

adduser user

usermod -aG docker user

重新启动Docker

systemctl restart docker

第五步:测试Docker

运行Docker hello-world container，以测试安装是否成功完成。

docker run hello-world

您将看到以下输出。

Hello from Docker!

这条消息显示您的安装似乎工作正常。

步骤6:配置Docker以启动

最后，让Docker在你的系统启动时运行。

systemctl enable docker

祝贺你！你已经成功地安装了Docker。