Task 3: GitLab Runner

Register the First GitLab Runner

With the base infrastructure established, the next step involves deploying a GitLab Runner to prepare for pipeline deployment.

Initial Configuration Steps

Navigate to the project settings and access the CI/CD section. Locate the "Runners" area and expand it to reveal the necessary details.

Disable the "Enable shared runners" option and keep this page accessible. You'll need the GitLab instance URL and registration token for the subsequent registration process.

Register Docker Runner

Return to your Ubuntu server SSH session and execute the registration command:

bash

sudo gitlab-runner register

When prompted, provide the following information:

GitLab coordinator URL: http://198.18.134.28/
Registration token: Use your token from the GitLab interface
Description: Docker (or your preferred identifier)
Tags: docker
Executor type: docker
Default Docker image: alpine:3.16.2

Expected output confirms successful registration with a unique runner ID.

Register Shell Runner

Execute the registration command a second time:

bash

sudo gitlab-runner register

Provide these details:

GitLab coordinator URL: http://198.18.134.28/
Registration token: Use your token from the GitLab interface
Description: Shell (or your preferred identifier)
Tags: shell
Executor type: shell

Verification

Refresh the GitLab CI/CD settings page and expand the "Runners" section. Both runners should now appear with their respective tags ("docker" and "shell") visible.

With two runners successfully registered, you're prepared to deploy your first CI/CD pipeline.