Make example node.js Dockerfile more declarative (#519)
Make example node.js Dockerfile more declarative (#519)

* Make example node.js Dockerfile more declarative

Include dependency install in node.js example Dockerfile to make need of multistage build more clear.

* Make node example install command ci/cd friendly
istio/distroless,istio/distroless,GoogleContainerTools/distroless,GoogleContainerTools/distroless,GoogleContainerTools/distroless,istio/distroless