Properly reference the variables for real

.github/workflows/docker-image.yml

@@ -48,9 +48,9 @@ jobs:
         echo "Building ${{env.CERBERUS_IMAGE_ID}}"
         cd src/cerberus
         make -f Makefile_docker release
-        docker tag cerberus:release $CERBERUS_IMAGE_ID
+        docker tag cerberus:release ${{env.CERBERUS_IMAGE_ID}}
     - name: Push the Docker image
-      run: docker push $CERBERUS_IMAGE_ID
+      run: docker push ${{env.CERBERUS_IMAGE_ID}}
     - name: Log out
       run: docker logout
 
@@ -69,7 +69,9 @@ jobs:
         password: ${{ secrets.VERSE_OPENSUT_ACCESS_TOKEN }}
     - name: Build the Docker image
       run: |
-        echo "Building $OPENSUT_BASE_IMAGE_ID"
-        docker build . --file Dockerfile --tag $OPENSUT_BASE_IMAGE_ID
+        echo "Building ${{env.OPENSUT_BASE_IMAGE_ID}}"
+        docker build . --file Dockerfile --tag ${{env.OPENSUT_BASE_IMAGE_ID}}
     - name: Push the Docker image
-      run: docker push $OPENSUT_BASE_IMAGE_ID
+      run: docker push ${{env.OPENSUT_BASE_IMAGE_ID}}
+    - name: Log out
+      run: docker logout