May 23, 2024

How to install and configure Docker on CentOS 7:

1. Update your system:

sudo yum update

2. Install required dependencies:

sudo yum install -y yum-utils device-mapper-persistent-data lvm2

3. Add the Docker repository:

sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

4. Install Docker CE (Community Edition):

sudo yum install docker-ce docker-ce-cli containerd.io

5. Start the Docker service:

sudo systemctl start docker

6. Enable Docker to start on boot:

sudo systemctl enable docker

7. Verify that Docker is installed and running:

sudo docker --version sudo docker info

8. Manage Docker without sudo (optional): If you don’t want to use sudo every time you run Docker commands, add your user to the docker group:

sudo usermod -aG docker $USER

You’ll need to log out and log back in for the changes to take effect.

9. Test Docker with a simple container:

docker run hello-world

This command downloads a small test image and runs a container based on it. If everything is set up correctly, you’ll see a “Hello from Docker!” message.

That’s it! Docker is now installed and configured on your CentOS 7 system. You can start using Docker to run and manage containers.

Vedant Kumar

Currently I'm working as an Implementation Engineer, Started my career as an System Administrator - Linux. Additionally loves to explore new technologies and research about new open-source software that ease the development cycle.

View all posts by Vedant Kumar →

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