Description
We've just introduced a nifty feature into Geth where you can specify configurations in env vars too, not only cli flags. Each flag is mapped to an env var automatically, so it's fairly obvious and easy to understand.
E.g. --state.scheme would be GETH_STATE_SCHEME
Wondering if Lighthouse has a similar feature planned?
The benefit of this is that in many cloud or container provider settings, the usual way to configure stuff is via env vars. Most providers allow you to define env vars in templates, add defaults, docs, etc to them, making these templates easy to redistribute and even check for issues. Although they usually also support passing CLI flags, that's just one mega-mess of a single string containing everything, so it's very brittle.
My assumption is that whatever CLI library you're using already has support for env vars, you just need to tell them which var is mapped to which flag.