specify per step node.js container

Author: philipluk

.github/workflows/node_js_containers.yml

@@ -2,6 +2,22 @@ name: Dockerized NodeJs App
 on: push
 
 jobs:
+  docker-steps:
+    # Docker containers can only run on ubuntu, it cannot run on Mac or Windows.
+    runs-on: ubuntu-latest
+    container:
+      image: node:10.18.0-jessie
+    steps:
+      - name: log node version
+        run: node -v
+
+      # This will run the image node:12.14.1-alpine3.10 which runs instead of the other one specified above
+      - name: Step with docker
+        uses: docker://node:12.14.1-alpine3.10
+        with: 
+          entrypoint: '/usr/local/bin/node'
+          args: '-v'
+    
   node-docker:
     runs-on: ubuntu-latest