We were using netcat to port to check if a service is up, but actually
we can do like Docker / Podman compose and check the status. For now,
I'm using the endpoint status, but maybe we can just check if the object
is "up".
As #182 were not clear, the `depends_on` from a compose file needs, at
this time, to check the port of the dependent service. If the port is
not declared (ports or with label), we need to "fail", not to "warn.
Fixes#182
Common mistake...
- Docker and Podman uses "command" as argument to "entrypoint"
- Kubernetes uses "command" as entrypoint and "args" as argument
So, we needed to use Command and Args in all related objects.
Fixes#163
