Init from config

[asraa]

Description

I was making enhancements to the root and realized it would be really nice to configure a config that could be used to initialize next roots based on params:

• expiration for each target type
• thresholds
• delegations
• targets (with custom meta)
• signers (either locations of HSM key data or GCP KMS signers)

What are some alternatives to dropping a custom YAML?

[asraa]

cc @haydentherapper @bobcallaway @dlorenc @joshuagl do any of you have good ideas?

[joshuagl]

Would (mustache) templating be a good solution?

https://mustache.github.io/mustache.5.html

[dlorenc]

Do you have a sketch of what this might look like? I'm not sure I understand the idea enough to comment.

[asraa]

Do you have a sketch of what this might look like? I'm not sure I understand the idea enough to comment.

I'll spec it out!

[asraa]

https://docs.google.com/document/d/1rhJEPs2LiCs7CZvZeNf8BIM2NLBjXAot8v-GnfulyQg/edit?resourcekey=0-PqzLxKb99V2ZM0iljWsWEA#

Here it is! I have started working out the implementation just to make sure it works, but my main goal is not to keep adding flags and commands to the scripts.

[asraa]

@dlorenc @joshuagl @bobcallaway do you have any feedback on this? I'd like to get this done in the next week so I can test run v3

[asraa]

Adding here with more feedback: we could and should have config validators.

[asraa]

cc @kommendorkapten