feat: add optional histogram or percentiles for http_server_requests metrics

[YellowFlora]

Adds configuration parameter to enable the output of a histogram or percentiles for the http_server_requests metrics

[YellowFlora]

implements the idea #4166

[github-actions]

Next minor release will be 8.2.0, Show Release Notes

8.2.0 (2026-01-07)

Features

• server-prometheus: add configurable options for histogramm and percentiles for the http_server_requests metrics in the PrometheusBundle (375ce50)
• starter: add PrometheusBundle configuration to SdaPlatformBundle and into SdaPlatformConfiguration (5198b25)

Bug Fixes

• add additional application/json accept header to issuer client (36e0970)

[github-actions]

Test Results

1 208 files  +12  1 208 suites  +12   41m 1s ⏱️ + 1m 56s
1 596 tests + 1  1 582 ✅ + 1  14 💤 ±0  0 ❌ ±0 
6 748 runs  +20  6 686 ✅ +20  62 💤 ±0  0 ❌ ±0 

Results for commit 2dbdca3. ± Comparison against base commit 36e0970.

This pull request removes 4 and adds 5 tests. Note that renamed tests count towards both.

org.sdase.commons.server.dropwizard.metadata.MetadataContextMergeIntegrationTest ‑ [4] {processes=[p-c1, p-c2], tenant-id=[t-c]}, {processes=[p-n3, p-n4], tenant-id=[]}, EXTEND, {processes=[p-c1, p-c2, p-n3, p-n4], tenant-id=[t-c]}
org.sdase.commons.server.dropwizard.metadata.MetadataContextMergeIntegrationTest ‑ [5] {tenant-id=[t-c]}, {processes=[p-n]}, EXTEND, {processes=[p-n], tenant-id=[t-c]}
org.sdase.commons.server.dropwizard.metadata.MetadataContextMergeIntegrationTest ‑ [8] {tenant-id=[t-c]}, {processes=[p-n], tenant-id=[t-n]}, KEEP, {processes=[p-n], tenant-id=[t-c]}
org.sdase.commons.server.dropwizard.metadata.MetadataContextMergeIntegrationTest ‑ [9] {processes=[p-c], tenant-id=[t-c]}, {tenant-id=[t-n]}, REPLACE, {processes=[p-c], tenant-id=[t-n]}

org.sdase.commons.server.prometheus.PrometheusBundleWithRequestHistogramIT ‑ shouldTrackRequestsAndAddHistogram()
org.sdase.commons.server.prometheus.PrometheusBundleWithSpecificRequestPercentilesIT ‑ shouldTrackRequestsAndAddQuantile()
org.sdase.commons.starter.PrometheusBuilderTest ‑ withCustomPrometheusConfiguration()
org.sdase.commons.starter.PrometheusBuilderTest ‑ withDefaultPrometheusConfiguration()
org.sdase.commons.starter.PrometheusBuilderTest ‑ withDefaultPrometheusConfigurationWithoutConfiguration()

♻️ This comment has been updated with latest results.

[JoergSiebahn]

Just some comments.

[YellowFlora]

Hello @ahoeing,

the feature is now implemented so far. Could you also take a last look if that is usable for you like this?

[sonarqubecloud]

Quality Gate passed

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
93.4% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[SDABot]

🎉 This PR is included in version 8.2.0 🎉

The release is available on GitHub release

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