steps to follow
Docker has become an essential tool for DevOps engineers to streamline the software development and deployment process. Docker is a platform that allows you to build, ship, and run applications in containers. In this blog post, we will guide you through the steps to install Docker in Linux.
Step 1: Update the package list Before we start installing Docker, let's update the package list. Open your terminal and run the following command:
sqlCopy codesudo apt-get update
Step 2: Install Docker To install Docker on Linux, we need to download the Docker package from the Docker website. To do this, run the following command:
csharpCopy codesudo apt-get install docker.io
This command will download and install the latest version of Docker on your system.
Step 3: Verify the installation To verify that Docker is installed correctly, run the following command:
cssCopy codesudo docker --version
This command will display the version of Docker that you just installed.
Step 4: Manage Docker as a non-root user By default, Docker requires root privileges to run. However, it is not recommended to run Docker as the root user. Therefore, we need to create a Docker group and add our user to that group. To do this, run the following commands:
bashCopy codesudo groupadd docker
sudo usermod -aG docker $USER
Note: Replace $USER with your username.
After running these commands, you need to log out and log in again to apply the changes.
Step 5: Test Docker To test that Docker is installed correctly and that you have permission to run it, run the following command:
Copy codedocker run hello-world
This command will download and run a test Docker image. If everything is working correctly, you should see a "Hello from Docker!" message.
Congratulations! You have successfully installed Docker on your Linux machine.
In conclusion, Docker is a powerful tool for DevOps engineers to streamline the software development and deployment process. By following these simple steps, you can easily install Docker on your Linux machine and start using it to build and ship your applications in containers.