GHA: Pass Docker Hub credentials as input to custom action

Author: srstsavage

.github/actions/publish_docker_image/action.yml

@@ -1,5 +1,12 @@
 name: Publish Docker images
 description: Publish Docker images to Docker Hub
+inputs:
+  DOCKER_USERNAME:
+    description: Docker Hub username
+    required: true
+  DOCKER_TOKEN:
+    description: Docker Hub token
+    required: true
 runs:
   using: composite
   steps:
@@ -19,8 +26,8 @@ runs:
     - name: Login to Docker Hub
       uses: docker/login-action@v3
       with:
-        username: ${{ secrets.DOCKER_USERNAME }}
-        password: ${{ secrets.DOCKER_PASSWORD }}
+        username: ${{ inputs.DOCKER_USERNAME }}
+        password: ${{ inputs.DOCKER_TOKEN }}
 
     - name: Push to Docker Hub
       uses: docker/build-push-action@v6

.github/workflows/build_docker_image.yml

@@ -49,3 +49,6 @@ jobs:
         ((github.event_name == 'release' && github.event.action == 'published') || github.ref == 'refs/heads/main')
         && github.repository == 'axiom-data-science/docker-erddap'
       uses: ./.github/actions/publish_docker_image
+      with:
+        DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+        DOCKER_TOKEN: ${{ secrets.DOCKER_PASSWORD }}