This is esp. important for the NodeJS (backend) container as Node will
exit on any unhandled error, it is best practice to let the errored
process crash and start a new one in its place. It this case we use
docker to do that for us (`restart: always` policy)
- Configs and automation for deploying backend to GKE
- First steps to adding an optional token check for requests to backend
- First steps frontend sending optional token to backend when configured
