When Docker images are used in GitLab CI/CD pipelines and the image name or tag provided in the.gitlab-ci.yml file does not match the name or tag of the image in the Docker registry, "No such container" errors may appear. You can try the following methods to solve this problem:
1- Check Image Name and Tag
Checking the name and tag of the Docker image specified in the.gitlab-ci.yml file is the first stage. Verify that the name and tag of the image match the name and tag of the image in the Docker registry and are spelled correctly.
2- Verify the availability of Docker images
The next step is to confirm that the Docker image is available if the image name and tag are accurate. Make sure the image can be fetched by the GitLab Runner and is listed in the Docker registry. Run the following command to see if the image is still available:
docker pull <image_name>:<tag>
3- Verify Runner Configuration
The runner configuration is the next thing to verify if the image is accessible. 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.
4- Look for errors in the Docker build.
Make sure the build procedure ends successfully and the image is correctly tagged if you are creating the Docker image as part of the pipeline. By going to CI/CD > Pipelines and selecting the desired pipeline, you can examine the build logs in the GitLab web interface.
5- Check for Docker Pull Errors
Make sure the pull procedure succeeds if the Docker image is being pulled during the pipeline. By going to CI/CD > Pipelines and selecting the pipeline you want to examine, you can check the pull logs in the GitLab web interface.
6- Examine the runner logs. 6: Check Runner Logs
You can examine the runner logs for more details if the aforementioned steps are unsuccessful in fixing the problem. The logs can assist in locating the issue's primary source.
Search for any error messages or stack trails that might point to the problem's origin.
In summation, "No such container" errors in GitLab CI/CD pipelines can be brought on by incorrect image name or tag, Docker image availability issues, configuration issues with the runner, Docker build or pull errors, or GitLab Runner issues. You can resolve the problem and guarantee that your pipeline functions properly by carrying out the procedures listed above.
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