feat: implement mapping priority

[pehlicd]

Hey,

For our use case we need priority in mappings. For example:

priority	mapping	description
0	general_rules.csv	enrich alerts using specific labels and add environment labels
1	env_specific_rules.csv	enrich alerts using environment labels and add more identifiers
2	alert_specific_rules.csv	do the rest of rulings

I also saw that when a new mapping is created api responses with priority. A simple csv example would be like:

Priority 0

matchers are = source, cluster

source	cluster	environment
prometheus	dev-k8s-1	sandbox
prometheus	prod-k8s-1	prod
sentry	dev-sentry	sandbox
sentry	prod-sentry	prod

Priority 1

matchers are = environment, service

environment	service	owner
sandbox	dev-frontend	frontend-team
sandbox	cart-service	backend-team
sandbox	kube-prometheus	(empty because we dont care alerts coming from this service)
prod	* (match every service)	all
prod	service-1 (for this service override the owner=all)	devops

[talboren]

Closed by mistake

[talboren]

@pehlicd any chance you can checkout #908 to see if it answers your requirements? :)

[pehlicd]

Thanks for rapid support on the issue Tal :). Gonna check it out, one thought that came to my mind, adding regex support would be hard to implement?

[talboren]

Thanks for rapid support on the issue Tal :). Gonna check it out, one thought that came to my mind, adding regex support would be hard to implement?

Not at all. I’ll try to iterate it soon. Let me know if this works as a starter :)

[pehlicd]

As starter it seems perfect 🚀