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The Git folder cannot be cloned by my Runner; why?

Several factors can prevent a GitLab Runner from successfully cloning a Git repository during a CI/CD workflow. You can follow these methods to investigate and resolve this problem:

Step 1: Check Repository URL​

Checking the URL of the Git source listed in the .gitlab-ci.yml file is the first step. Make sure the repository can be accessed and that the URL is accurate.

Step 2: Check Runner Configuration​

The runner configuration is the next thing to verify if the repository URL is accurate. Make sure the program is activated and configured properly. By going to Settings > CI/CD > Runners in the GitLab web interface, you can verify the status of the runner.

Step 3: Check Runner Tags​

Checking the runner tags comes next, if the runner setup is accurate. Make sure the identifiers used by the runner correspond to those listed in the .gitlab-ci.yml file.

Step 4: Check SSH Keys​

Checking the SSH credentials used for authentication comes next if the runner tags are accurate. Make sure the public key is added to the GitLab server and that the SSH key is accurate.

Step 5: Check GitLab Instance Configuration​

The GitLab instance configuration is the next thing to verify if the SSH keys are accurate. Verify that the repository is available and that the GitLab instance is up and running.

Step 6: Check Pipeline Logs​

The pipeline's logs will need to be examined if the aforementioned procedures do not solve the problem. You can determine where and why the pipeline is failing using the records. By going to CI/CD > Pipelines and selecting the desired pipeline, you can examine the logs in the GitLab web interface. On the right side of the screen, the logs will be visible.

Step 7: Retry the Pipeline​

Rerun the process to see if the problem still exists. Retrying the pipeline might be able to fix any problems that were temporarily the source of the failure.

Summary​

In conclusion, problems with the repository URL, runner setup, runner tags, SSH keys, GitLab instance configuration, or other pipeline problems may prevent a GitLab Runner from successfully cloning a Git repository during a CI/CD pipeline. You can troubleshoot and resolve the problem and make sure that your pipeline functions properly by carrying out the methods listed above.