ubuntu install docker

Step 1: Update Software Repositories It’s a good idea to update the local database of software to make sure you’ve got access to the latest revisions.

Open a terminal window and type:

sudo apt-get update

Allow the operation to complete.

Step 2: Uninstall Old Versions of Docker Next, it’s recommended to uninstall any old Docker software before proceeding.

Use the command:

sudo apt-get remove docker docker-engine docker.io

Step 3: Install Docker on Ubuntu 18.04 To install Docker on Ubuntu, in the terminal window enter the command:

sudo apt install docker.io

Step 4: Start and Automate Docker The Docker service needs to be setup to run at startup. To do so, type in each command followed by enter:

sudo systemctl start docker
sudo systemctl enable docker

管理员需要取得hub的账户密码。

sudo useradd -m -d /home/username username
sudo passwd username

管理员需要获取 hub 中 docker 的使用权限。

sudo usermod -aG docker username
sudo chmod 666 /var/run/docker.sock