Masterminds
feat(crypto): add uuidv5
This pull request adds a new UUID function: uuidv5
UUIDv5 is different from the already implemented UUIDv4 functions because it is pseudo-random and deterministic. It takes into input a "namespace", which we could call a seed of some sort. It then takes a "name" and outputs a UUID.
This feature is extremely useful for tools like Helm which depend on Sprig because of the determinism.
There are usecases where Helm Charts need to generate random IDs, but uuidv4 doesn't survive upgrades because they get regenerated.
Having one single manually generated source of randomness (the namespace) and then using it everywhere in templates by specifying different "names" makes the UUID generation random for each template but also deterministic (it will survive through upgrades).
Considering the amount of questions on stackoverflow involving idempotence for randomly generated values, I think this function would be pretty useful.
@mattfarina considering you're a Helm maintainer, do you have a particular opinion on this matter?
Hey @mattfarina, just paging you to know if you guys need help with maintaining this project? It's an elementary dependency of many projects and keeping it active would be beneficial for everybody. I see there was a lack of activity for almost 2 years until now, I can volunteer to keep it going.
@mattfarina Hi, I'm sorry to insist but I think UUIDv5 would be great for stable randomness in a lot of Helm charts.