Enable new set of Go metrics in Kubernetes

[tosi3k]

What type of PR is this?

/kind feature

What this PR does / why we need it:

This change adds more Golang-related metrics to Kubernetes which are useful when debugging Golang-related problems in Kubernetes.

Which issue(s) this PR fixes:

No issue is opened for that.

Special notes for your reviewer:

Bases on prometheus/client_golang version bump in #112052 which has to be submitted first.

Does this PR introduce a user-facing change?

Add new Golang runtime-related metrics to Kubernetes components:
* go_gc_cycles_automatic_gc_cycles_total
* go_gc_cycles_forced_gc_cycles_total
* go_gc_cycles_total_gc_cycles_total
* go_gc_heap_allocs_by_size_bytes
* go_gc_heap_allocs_bytes_total
* go_gc_heap_allocs_objects_total
* go_gc_heap_frees_by_size_bytes
* go_gc_heap_frees_bytes_total
* go_gc_heap_frees_objects_total
* go_gc_heap_goal_bytes
* go_gc_heap_objects_objects
* go_gc_heap_tiny_allocs_objects_total
* go_gc_pauses_seconds
* go_memory_classes_heap_free_bytes
* go_memory_classes_heap_objects_bytes
* go_memory_classes_heap_released_bytes
* go_memory_classes_heap_stacks_bytes
* go_memory_classes_heap_unused_bytes
* go_memory_classes_metadata_mcache_free_bytes
* go_memory_classes_metadata_mcache_inuse_bytes
* go_memory_classes_metadata_mspan_free_bytes
* go_memory_classes_metadata_mspan_inuse_bytes
* go_memory_classes_metadata_other_bytes
* go_memory_classes_os_stacks_bytes
* go_memory_classes_other_bytes
* go_memory_classes_profiling_buckets_bytes
* go_memory_classes_total_bytes
* go_sched_goroutines_goroutines
* go_sched_latencies_seconds

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[k8s-ci-robot]

Please note that we're already in Test Freeze for the release-1.25 branch. This means every merged PR will be automatically fast-forwarded via the periodic ci-fast-forward job to the release branch of the upcoming v1.25.0 release.

Fast forwards are scheduled to happen every 6 hours, whereas the most recent run was: Thu Aug 18 07:40:11 UTC 2022.

[leilajal]

/cc @liggitt
/triage accepted

[dashpole]

/assign @logicalhan
cc @dgrisonnet
for sig-instrumentation

[dgrisonnet]

For anyone looking into what this new Go package brings compare to the previous one, I would recommand having a look at prometheus/client_golang#955, it is well describe in this PR.

[tosi3k]

/retest

[dgrisonnet]

Looks good to me, leaving approval to @logicalhan since he also wanted to have a look.

[logicalhan]

What are the diff in the metrics? If there is a large delta (i.e. metrics are removed) this could break consumers.

[dgrisonnet]

This implementation adds all these metrics on top of the already exposed one: https://github.com/prometheus/client_golang/blob/main/prometheus/collectors/go_collector_latest_test.go#L92-L120.

No metrics are removed, only new ones are added.

[logicalhan]

This implementation adds all these metrics on top of the already exposed one: https://github.com/prometheus/client_golang/blob/main/prometheus/collectors/go_collector_latest_test.go#L92-L120.

No metrics are removed, only new ones are added.

We should add these to the release note.

[tosi3k]

This implementation adds all these metrics on top of the already exposed one: https://github.com/prometheus/client_golang/blob/main/prometheus/collectors/go_collector_latest_test.go#L92-L120.
No metrics are removed, only new ones are added.

We should add these to the release note.

Done. Let me know if the release notes format in the PR's description suits you.

[logicalhan]

/lgtm
/approve

[liggitt]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: liggitt, logicalhan, tosi3k

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Needs approval from an approver in each of these files:

• staging/src/k8s.io/component-base/metrics/OWNERS [liggitt,logicalhan]
• vendor/OWNERS [liggitt]

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