H, -host= Daemon socket(s) to connect to config=~/.docker Location of client config files To view all the sub-commands we needed to type the below command $ dockerĬONTAINER ID IMAGE COMMAND CREATED STATUS PORTS ~]# dockerĪ self-sufficient runtime for containers.

Or $ sudo usermond –aG docker username Using the Docker CommandĪs we just installed the Docker installed and working, we needed to learn some command line utility with some sub-command and arguments $ docker We needed to add the current user to the Docker group on the system which was enabled by the installation without that we cannot run the docker command line utility with non root user. We needed to enable the docker to start at the boot time, we needed to run the below command $ sudo systemctl enable docker Adding the Current user to Docker Group To know the docker services running or not we can run the below command $ sudo systemctl status docker Remember that you will have to log out and back in for this to take effect!Īfter the installation has completed, we need to start the Docker daemon with the below command $ sudo systemctl start docker Now run the below command to add the official Docker repository and download the latest version of the dockers and install it. In order to get the latest version, we will install the Dockers from the Dockers Official repository. Docker installation is available in the official CentOS 7 repository which is not the latest version. Installing the Docker on CentOS 7īefore we begin the installation we need CentOS 7 64 bit and need a user who is non root with sudo permissions. Here for demo purpose, we will install on the existing OS. First method is to by installation using the existing OS or spinning the server with a tool called Docker Machine and making the auto installation.

There are two methods of installing Docker on CentOS 7. It works like a virtual machine which are more portable and more resource friendly and more dependent on the host OS. Dockers is a very good tool which runs the application on its own containers. In this article, we will learn how to install Dockers.

Docker centos 7 install