Fix docker stop error on Dependabot PRs by handling missing container gracefully

[Copilot]

Problem

The Docker Build & Test workflow was failing on Dependabot PRs with the following error:

Run docker stop education-app
Error response from daemon: No such container: education-app
Error: Process completed with exit code 1.

This occurred in the cleanup step when the workflow attempted to stop a Docker container that didn't exist. The container could be missing for various reasons:

• The container failed to start due to dependency issues
• Build failures prevented container creation
• Previous steps failed before the container was created

Solution

Modified .github/workflows/docker-test.yml to gracefully handle missing containers during cleanup:

1. Added || true to docker stop command (line 158)

   • Ensures the command succeeds even when the container doesn't exist
   • Prevents workflow failure during cleanup

2. Added docker rm cleanup step (lines 160-162)

   • Properly removes containers after stopping them
   • Also uses || true to handle missing containers gracefully

Both cleanup steps use if: always() to ensure they run regardless of whether previous steps succeeded or failed.

Testing

Verified that the fix works correctly by:

• Validating YAML syntax with PyYAML
• Testing that docker stop nonexistent-container || true returns exit code 0
• Confirming no other workflows have similar issues

This minimal change ensures Dependabot PRs won't fail due to cleanup errors while maintaining proper container cleanup when containers do exist.

Original prompt

this happens on the dependabot PRs - please fix it Run docker stop education-app
Error response from daemon: No such container: education-app
Error: Process completed with exit code 1.

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[github-actions]

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[github-actions]

🚨 Missing Open Issue Link

This pull request does not reference any open GitHub issue via the Development section.

PRs must be linked to an open issue using GitHub’s "Development" section (on the right sidebar).

How to fix this:

• Go to the PR page.
• Use the "Link issue" option in the Development section.
• Select an appropriate open issue.

This PR will be automatically closed. You can reopen it after linking an open issue.

Thank you!