What is meaning of "sudo usermod -aG docker jenkins"
sudo usermod -aG docker jenkins command adds the user
jenkins to the
docker group. This is often done when you want the Jenkins automation server to have the ability to interact with Docker, such as running Docker containers as part of your CI/CD (Continuous Integration/Continuous Deployment) pipeline.
Here's a breakdown of the command:
sudo: This command is used to run the following command as the superuser or with elevated privileges.
usermod: This command is used to modify user account properties.
-aG: These are options for the
-a: It appends the user to the specified group(s) without removing them from any existing group.
-G: It specifies the group to which the user should be added.
docker: This is the name of the group to which
jenkinswill be added. The
dockergroup typically allows users to run Docker commands without needing to use
jenkins: This is the username of the user being added to the
After running this command, the user
jenkins will have the necessary permissions to run Docker commands without needing to use
sudo. This can be useful if your Jenkins server needs to build and deploy Docker containers as part of your automated CI/CD process. However, keep in mind that adding a user to the
docker group grants them significant privileges, so ensure that this is done with care and for trusted users only.