Updating github actions to use DockerHub

Author: Bryan Sieber

.github/workflows/build-image.yaml

@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: prepare
     environment:
-        name: dev
+        name: cloudops
     outputs:
       BUILD_TAG: ${{ steps.build-push.outputs.build-tag }}
 
@@ -44,17 +44,22 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
 
-      - name: Login to GCR
+      - name: Login to Docker Hub
         uses: docker/login-action@v1
         with:
-          registry: gcr.io
-          username: _json_key
-          password: ${{ secrets.GCP_CREDENTIALS }}
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_ACCESS_TOKEN }}
 
-      - name: Build and push to GCR
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: $GITHUB_REPOSITORY
+
+
+      - name: Build and push to Docker Hub
         id: build-push
         env:
-          GCR_REGISTRY: gcr.io/${{ secrets.GCP_PROJECT_ID }}/${{ secrets.GCP_APP_NAME }}/${{ secrets.GCP_GCR_REPO }}
           IMAGE_TAG: ${{ needs.prepare.outputs.FULL_IMAGE_TAG }}
         run: |
           printf '{\n    "commit": "%s",\n    "version": "%s",\n    "image_tag": "%s",\n    "source": "%s",\n    "build": "%s"\n}\n' \
@@ -63,9 +68,9 @@ jobs:
             "$IMAGE_TAG" \
             "$GITHUB_SERVER_URL/$GITHUB_REPOSITORY" \
             "$GITHUB_SERVER_URL/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID" > ./version.json
-          docker build --file infra/Dockerfile -t $GCR_REGISTRY:$IMAGE_TAG .
-          docker image tag $GCR_REGISTRY:$IMAGE_TAG $GCR_REGISTRY:latest
-          docker push $GCR_REGISTRY:$IMAGE_TAG
-          docker push $GCR_REGISTRY:latest
+          docker build --file infra/Dockerfile -t $GITHUB_REPOSITORY:$IMAGE_TAG .
+          docker image tag $GITHUB_REPOSITORY:$IMAGE_TAG $GITHUB_REPOSITORY:latest
+          docker push $GITHUB_REPOSITORY:$IMAGE_TAG
+          docker push $GITHUB_REPOSITORY:latest
           echo "::set-output name=build-tag::$IMAGE_TAG"
           echo "::debug::Set the build-tag output as $IMAGE_TAG"