ci: add Docker Hub authentication to test workflow to avoid rate limits (#10278)

* ci: add Docker Hub login step to CI workflow to avoid rate limits

* Introduced a new step in the Docker CI workflow to log in to Docker Hub using credentials stored in GitHub secrets. This enhances the workflow by ensuring that the build process can push images to Docker Hub securely.

* ci: add Docker Hub credentials to CI workflow for secure image testing

* Updated the CI workflow to include Docker Hub credentials as secrets for the Docker image testing job. This ensures secure access to Docker Hub during the CI process, enhancing the reliability of image builds and tests.

.github/workflows/ci.yml

@@ -338,6 +338,9 @@ jobs:
     name: Test Docker Images
     if: ${{ needs.path-filter.outputs.docker == 'true' && needs.set-ci-condition.outputs.should-run-tests == 'true' }}
     uses: ./.github/workflows/docker_test.yml
+    secrets:
+      DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
+      DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
 
   # https://github.com/langchain-ai/langchain/blob/master/.github/workflows/check_diffs.yml
   ci_success:

.github/workflows/docker_test.yml

@@ -2,6 +2,11 @@ name: Test Docker images
 
 on:
   workflow_call:
+    secrets:
+      DOCKERHUB_USERNAME:
+        required: true
+      DOCKERHUB_TOKEN:
+        required: true
   workflow_dispatch:
 
 env:
@@ -43,6 +48,12 @@ jobs:
           if command -v docker &> /dev/null; then
             docker buildx du || true
           fi
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
       - name: Build image
         run: |
           ${{ env.CONTAINER_RUNTIME }} build -t langflowai/langflow:latest-dev \