Listener: Use headless and metrics service

[maltesander]

Description

follow up of #700

This splits the previous metrics internal service into a metrics service with the prometheus scrape label and a headless service for internal communication.

• add headless role group service
• use headless service in tls certs
• add listener service name to tls certs
• move service creation to its own module
• adapt tests to use the correct service

TLS cert now uses listener scope: SAN for internal

#5: ObjectId: 2.5.29.17 Criticality=true
SubjectAlternativeName [
  DNSName: trino-coordinator-default-headless.kuttl-test-obliging-impala.svc.cluster.local
  DNSName: trino-coordinator-default-0.trino-coordinator-default-headless.kuttl-test-obliging-impala.svc.cluster.local
  DNSName: trino-coordinator.kuttl-test-obliging-impala.svc.cluster.local
]

SAN for external

#5: ObjectId: 2.5.29.17 Criticality=true
SubjectAlternativeName [
  DNSName: test-trino-coordinator-default-headless.kuttl-test-valid-mayfly.svc.cluster.local
  DNSName: test-trino-coordinator-default-0.test-trino-coordinator-default-headless.kuttl-test-valid-mayfly.svc.cluster.local
  IPAddress: 172.18.0.2
]

Definition of Done Checklist

• Not all of these items are applicable to all PRs, the author should update this template to only leave the boxes in that are relevant
• Please make sure all these things are done and tick the boxes

Author

• Changes are OpenShift compatible
• CRD changes approved
• CRD documentation for all fields, following the style guide.
• Helm chart can be installed and deployed operator works
• Integration tests passed (for non trivial changes)
• Changes need to be "offline" compatible
• Links to generated (nightly) docs added
• Release note snippet added

Reviewer

• Code contains useful comments
• Code contains useful logging statements
• (Integration-)Test cases added
• Documentation added or updated. Follows the style guide.
• Changelog updated
• Cargo.toml only contains references to git tags (not specific commits or branches)

Acceptance

• Feature Tracker has been updated
• Proper release label has been added
• Links to generated (nightly) docs added
• Release note snippet added
• Add type/deprecation label & add to the deprecation schedule
• Add type/experimental label & add to the experimental features tracker

[Maleware]

LGTM modulo tests. Thanks!

[maltesander]

test https://testing.stackable.tech/view/02%20Operator%20Tests%20(custom)/job/trino-operator-it-custom/40/

[maltesander]

test 2: https://testing.stackable.tech/view/02%20Operator%20Tests%20(custom)/job/trino-operator-it-custom/41/

[NickLarsenNZ]

LGTM

[maltesander]

Release Note

Coordinator Listener classes are now declared at role level spec.coordinators.roleConfig.listenerClass instead of spec.clusterConfig.listenerClass.
Both Coordinators and Workers have two services at role group level, a headless service called <cluster>-<role>-<rolegroup>-headless and a service for metrics called <cluster>-<role>-<rolegroup>-metrics.

Docs

https://docs.stackable.tech/home/nightly/trino/usage-guide/listenerclass/