Use registry.datadoghq.com for Agent image defaults

[AliDatadog]

What

Change the Operator Agent image default registry from gcr.io/datadoghq to registry.datadoghq.com by pointing DefaultImageRegistry at the existing DatadogContainerRegistry constant.

This also updates generated DatadogAgent registry descriptions in CRD and bundle artifacts so the documented default matches the runtime default. GCR remains listed as the Google Container Registry option for explicit overrides.

Why

The public container registry guidance recommends registry.datadoghq.com as the simple/default Datadog registry while preserving cloud-provider registries for users who explicitly choose them. The Operator should generate default Agent, Cluster Agent, and DDOT image references from the same default registry.

Validation

• make manifests
• make bundle VERSION=1.27.0 refreshed the bundle registry descriptions before hack/patch-bundle.sh exited locally on an unbound LATEST_VERSION; unrelated generated bundle churn was pruned from the final diff.
• go test ./internal/controller/datadogagent ./internal/controller/datadogagent/defaults ./pkg/images

[datadog-official]

 

✨ Fix all issues with BitsAI

⚠️ Warnings

🚦 3 Pipeline jobs failed

DataDog/datadog-operator | generate_code     

pull request linter | Check Milestone     

pull request linter | build     

ℹ️ Info

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 44.10% (+0.11%)

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_{This comment will be updated automatically if new data arrives.
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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 43.77%. Comparing base (39d6bd3) to head (57fc535).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3098      +/-   ##
==========================================
+ Coverage   43.66%   43.77%   +0.11%     
==========================================
  Files         352      352              
  Lines       30115    30234     +119     
==========================================
+ Hits        13149    13235      +86     
- Misses      16094    16127      +33     
  Partials      872      872              

Flag	Coverage Δ
unittests	43.77% <ø> (+0.11%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
pkg/images/images.go	97.34% <ø> (ø)

... and 3 files with indirect coverage changes

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