Simple healthcheck

[javierspn]

Is your feature request related to a problem? Please describe.
Just add a simple health check to the compose file

Describe the solution you'd like
I have implemented this one:

    healthcheck:
      test:
        - CMD-SHELL
        - >
          wget --spider -q
          --header='Origin: ${BASE_URL}'
          --header='Host: ${HOSTNAME_PUBLIC:-example.domain.com}'
          http://127.0.0.1:$${PORT:-3000} || exit 1

Describe alternatives you've considered
I add here my external domain (I use an http proxy)

Additional context
I just like to do a healthcheck on all of my containers.