Fix OKE demo Prometheus upgrade

[danish9039]

Fixes #8179.

Problem

The scheduled OKE demo deployment was upgrading kube-prometheus-stack without pinning a chart version. When the chart moved to 82.10.4, the cluster still had older Prometheus Operator CRDs, so the upgrade failed on Alertmanager.spec.hostNetwork.

Fix

This pins the Prometheus chart to 82.10.4 and enables the chart CRD upgrade path with forced conflict takeover, so the CRDs are updated before the Prometheus resources are upgraded.

Verification

• bash -n examples/oci/deploy-all.sh

[Copilot]

Pull request overview

Pins the OKE demo’s kube-prometheus-stack Helm upgrade to a known-good chart version and enables CRD upgrade handling to prevent Prometheus Operator CRD/schema drift from breaking the scheduled OKE deployment workflow.

Changes:

• Pin prometheus-community/kube-prometheus-stack to 82.10.4 in examples/oci/deploy-all.sh.
• Enable the chart’s CRD upgrade job and force conflict takeover during CRD apply.
• Add a small regression test script for the Helm invocation and a runbook documenting the incident and recovery steps.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
examples/oci/deploy-all.sh	Pins the Prometheus chart version and enables CRD upgrade job with forced conflict resolution.
examples/oci/deploy-all-test.sh	Adds a lightweight regression test that asserts the expected Helm command is invoked.
docs/oke-prometheus-upgrade-runbook.md	Documents the failure mode, recovery steps, and rationale for the pinned/CRD-upgrade fix.

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[github-actions]

CI Summary Report

Metrics Comparison

❌ 72 metric change(s) detected

View changed metrics

metrics_snapshot_cassandras_4.x_v004_v2_auto

metrics_snapshot_cassandras_4.x_v004_v2_manual

metrics_snapshot_cassandras_5.x_v004_v2_auto

metrics_snapshot_cassandras_5.x_v004_v2_manual

metrics_snapshot_elasticsearch_8.x_v2
3 added

• jaeger_storage_latency_seconds
• jaeger_storage_requests
• rpc_server_call_duration_seconds

metrics_snapshot_elasticsearch_9.x_v2
3 removed

• jaeger_storage_latency_seconds
• jaeger_storage_requests
• rpc_server_call_duration_seconds

Code Coverage

✅ Coverage 96.8% (baseline 96.8%)

➡️ View CI run | View publish logs
2026-03-15 22:28:28 UTC

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.66%. Comparing base (6bf0ed8) to head (3f3c82c).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8183   +/-   ##
=======================================
  Coverage   95.66%   95.66%           
=======================================
  Files         317      317           
  Lines       16747    16747           
=======================================
  Hits        16021    16021           
  Misses        572      572           
  Partials      154      154           

Flag	Coverage Δ
badger_v1	9.05% <ø> (ø)
badger_v2	1.04% <ø> (ø)
cassandra-4.x-v1-manual	13.25% <ø> (ø)
cassandra-4.x-v2-auto	1.03% <ø> (ø)
cassandra-4.x-v2-manual	1.03% <ø> (ø)
cassandra-5.x-v1-manual	13.25% <ø> (ø)
cassandra-5.x-v2-auto	1.03% <ø> (ø)
cassandra-5.x-v2-manual	1.03% <ø> (ø)
clickhouse	1.16% <ø> (ø)
elasticsearch-6.x-v1	16.83% <ø> (ø)
elasticsearch-7.x-v1	16.86% <ø> (ø)
elasticsearch-8.x-v1	17.01% <ø> (ø)
elasticsearch-8.x-v2	1.04% <ø> (-0.05%)	⬇️
elasticsearch-9.x-v2	1.09% <ø> (+0.04%)	⬆️
grpc_v1	7.79% <ø> (ø)
grpc_v2	1.04% <ø> (ø)
kafka-3.x-v2	1.04% <ø> (ø)
memory_v2	1.04% <ø> (ø)
opensearch-1.x-v1	16.91% <ø> (ø)
opensearch-2.x-v1	16.91% <ø> (ø)
opensearch-2.x-v2	1.04% <ø> (ø)
opensearch-3.x-v2	1.04% <ø> (ø)
query	1.04% <ø> (ø)
tailsampling-processor	0.52% <ø> (ø)
unittests	94.35% <ø> (ø)

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