Config file for environment-specific settings

[x80486]

As of version 1.9, it's not possible to provide an external config file, or just augment the default one with a (preferable predefined) key in order to read environment-specific settings.

For instance, when doing callbacks, the hostname will usually change between different environments: test, qa, etc.

If the default config file defines a predefined key (e.g.: application) that we can use for such things, then it would be possible to place any values that we need, maintaining the same (YAML-like structure). Eventually, there has to be a way to read these within the simulations...so that's needed as well 🤣

Something like this:

application: # this is for us, the users ;)
  callbacks:
    - service: foo
      hostname: env.foo.tld
admin: https
host: 1.2.3.4

Actually, that's quite complicated, because the structure for the configuration is not known beforehand, so I'm not sure how to approach this one right away 🤔

[apisim]

Currently there isn't the concept of "environment"/"profile" and configuration values per environment/profile. Some more thinking will have to go into this as far as requirements first...