Enhancement for alarms

[pixelsoccupied]

This enhancement talks about re-architecting the Alarm server as specified in InfrastructureMonitoring Service API o-ran spec.

Notable changes include:

• Data returned from API calls follow closely to what's defined by o-ran
• Dynamically checking and gathering cluster resources during init such as PrometheuseRule
• Combining servers into the same code base
• Introducing persistence storage via Postgres

This enhancement includes all the code tested during spike, the k8s resources needed to deploy through operator and other libraries/tool that can be used to quickly develop this.

co-authored with @browsell and @Jennifer-chen-rh

[openshift-ci]

Skipping CI for Draft Pull Request.
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[Jennifer-chen-rh]

General question about DB serial number. It will increase with the entry of DB rows or increase with DB row update?

[pixelsoccupied]

@Jennifer-chen-rh on entry. More on SERIAL datatypes https://www.postgresql.org/docs/current/datatype-numeric.html#DATATYPE-SERIAL. But we can have custom type which be incremented on insertion or update.

[Jennifer-chen-rh]

@pixelsoccupied aha, I felt something missing in PR. Now I figured out that the section we discussed about history table entry age out not here.

[openshift-ci]

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[Jennifer-chen-rh]

@pixelsoccupied

1. the datastructures are still public
2. Missing the the alarm notification event object structure