The list returned depends on which repositories are enabled, and is specific to your version of CentOS (indicated by the.el7 suffix in this example). Install a specific version by its fully qualified package name, which is the package name (docker-ce) plus the version string (2nd column) starting at the first colon (:), up to the first hyphen, separated by a hyphen (-). After that, you can install Docker again using the apt command below. Apt install docker-ce docker-ce-cli containerd.io. Type ' y ' and press ' Enter ' to confirm the installation. If the installation is complete, execute the following command to verify the installation. Check whether the service is enabled or not. GitLab CE Docker image. To install the Community Edition, replace ee with ce in the commands on this page. The following information will help if you encounter problems using Omnibus GitLab and Docker. Diagnose potential problems. Read container logs. Install Docker Engine. Update the apt package index, and install the latest version of Docker Engine and containerd, or go to the next step to install a specific version: $ sudo apt-get update $ sudo apt-get install docker-ce docker-ce-cli containerd.io.
Docker is an open-source platform for developing, testing, and running applications. Docker allows to package and run an application in container. A container is an isolated environment which contains everything needed for application to run.
This tutorial explains how to install Docker Community Edition (CE) on Ubuntu 20.04.
Update the package lists using the following command:
Install package which allows to use a repository accessed via the HTTP:
Install Docker CE
Download GPG key and add to a specified directory:
Add the Docker CE repository:
Install the Docker CE:
By default, root and user with sudo privileges can use Docker. During installation
docker group is created. So if you want to allow to use Docker for non-root users, you can add user to the
Add current user to
To make changes to take effect, logout and login to your machine. After you’re reconnected, check Docker version:
We can use the following command to determine if Docker service is running:
We can also stop, start and restart the Docker service:
Testing Docker CE
To test that Docker successfully installed, you can run the
The command downloads a test image, runs it in a container, prints message, and exits.
Uninstall Docker CE
If you decided to completely remove Docker CE and related dependencies, run the following command:
When it finished, remove the
docker0 network interface is installed. You can remove it with command:
Remove GPG key and repository:
You can also remove Docker configuration, images, containers, and other related directories:
Docker CE is not officially supported on RHEL but if you're in a pinch, you can get the latest Docker CE installed on it.
I’ll admit, I’m not a RedHat expert. I’ve been using Debian based distros since the beginning but recently I was in a position where I had to get Docker CE installed on RedHat 7.2.
It wasn’t my position to question or attempt to persuade anyone into changing. My only task was “get the latest version of Docker CE installed on RHEL 7.x”.
If you follow the CentOS instructions for Docker CE , chances are you got the dreaded
Requires: container-selinux >= 2.9 error when trying to install CE on RedHat 7.x.
Here’s what I eventually ended up doing which worked:
This just installs a more recent version of
container-selinx before installing Docker.
Docker Ce Install Windows
One thing to note is the long
mirror.centos.org command. You’ll want to check the list of extra packages for the latest version of
container-selinux. At the time of writing this article it was
You can check by going to http://mirror.centos.org/centos/7/extras/x86_64/Packages/. Just copy the link address for the latest
container-selinux and replace mine from above.
Is it safe in production?
Docker Ce Install Mac
That’s for you and your organization to decide. It’s safe in the sense that you are pulling things down from an official CentOS repository. However…
Docker Ce Install Windows
Since you’re pulling in a CentOS repository, that will void all support from RHEL which kind of defeats the purpose of being a RHEL subscriber, but sometimes you get handed a problem with no alternative solution.