Fix incorrect logging of Ca

[tinaselenge]

Type of change

Select the type of your PR and delete the other items

• Bugfix

Description

Ca is logged incorrectly:

2026-08-18 09:32:40 INFO  KafkaRoller:446 - Reconciliation #124(timer) Kafka(default/my-cluster): Rolling Pod my-cluster-dual-role-0/0 due to [Pod has old io.strimzi.operator.common.ca.InternalCa@55880336 certificate generation, io.strimzi.operator.common.ca.InternalCa@55880336 certificate renewal, Pod has old revision, Kafka broker TLS certificates updated]

Add toString() on Ca to return caRole.caName(), so that when Ca gets logged, we should see "Cluster CA" or "Clients CA" rather than raw object reference.

2026-08-18 10:02:20 INFO  KafkaRoller:446 - Reconciliation #4(timer) Kafka(default/my-cluster): Rolling Pod my-cluster-dual-role-0/0 due to [Pod has old Cluster CA certificate generation, Cluster CA certificate renewal, Pod has old revision, Kafka broker TLS certificates updated]

Checklist

Please go through this checklist and make sure all applicable tasks have been done

• Update documentation
• Update CHANGELOG.md (if present)
• Reference relevant issue(s) and close them after merging
• Write tests
• Make sure all tests pass
• Try your changes inside a Kubernetes cluster, not just from unit tests
• AI assistance was used to create this PR (see the Strimzi AI policy)

[snyk-io]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues
✅	Licenses	0	0	0	0	0 issues
✅	Code Security	0	0	0	0	0 issues

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[katheris]

Thanks @tinaselenge

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 80.31%. Comparing base (88e86e0) to head (b44f488).

Files with missing lines	Patch %	Lines
...rc/main/java/io/strimzi/operator/common/ca/Ca.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #13070      +/-   ##
============================================
- Coverage     80.33%   80.31%   -0.02%     
+ Complexity     6522     6521       -1     
============================================
  Files           343      343              
  Lines         22695    22696       +1     
  Branches       3079     3079              
============================================
- Hits          18231    18229       -2     
- Misses         3250     3251       +1     
- Partials       1214     1216       +2     

Files with missing lines	Coverage Δ
...rc/main/java/io/strimzi/operator/common/ca/Ca.java	71.77% <0.00%> (-0.59%)	⬇️

... and 2 files with indirect coverage changes

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[scholzj]

/gha run pipeline=regression

[github-actions]

⏳ System test verification started: link

The following 6 job(s) will be executed:

• regression-brokers-and-security-amd64 (cncf-ubuntu-8-32-x86)
• regression-operators-amd64 (cncf-ubuntu-8-32-x86)
• regression-operands-amd64 (cncf-ubuntu-8-32-x86)
• regression-brokers-and-security-arm64 (cncf-ubuntu-8-32-arm)
• regression-operators-arm64 (cncf-ubuntu-8-32-arm)
• regression-operands-arm64 (cncf-ubuntu-8-32-arm)

Tests will start after successful build completion.

[github-actions]

❌ System test verification failed: link