[Backport v1.30] [TON-742] Support managed DatadogAgent creation and removal - #3341
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Harden lifecycle readiness prerequisites Add EKS add-on lifecycle handling Generalize lifecycle ownership metadata Rename managed Agent installation support Fix managed installation lint failures Generalize managed Agent installation flow Harden managed Agent installation handoff Simplify managed Agent installation coordination Limit managed installation integration scope Preserve installation acknowledgement during uninstall Separate managed installation from Remote Config fix managed installation task arbitration harden managed Agent installation handling Improve managed installation test coverage Preserve updates when managed install is disabled Simplify managed installation flow Fix managed Windows profile validation Align managed installation namespace Harden managed installation recovery Use operator namespace for managed installs Modernize owner reference pointers Fix managed installation task recovery Harden managed installation recovery Fix managed installation cleanup retrigger ci Co-authored-by: swang392 <sarah.wang@datadoghq.com> (cherry picked from commit bf9fb87)
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Backport bf9fb87 from #3268.
What does this PR do?
Adds opt-in support for managed DatadogAgent creation and removal. The Operator reads lifecycle requests from a ConfigMap, creates or removes the DatadogAgent and Windows AgentProfile resources, and reports progress and completion through Remote Config.
The new flow coordinates with existing Fleet configuration updates so the two operations do not overwrite each other's state.
Motivation
After the EKS instrumenter installs the Operator EKS add-on, it needs a reliable way to create the DatadogAgent and confirm that removal has completed before removing the add-on.
Additional Notes
The feature is disabled by default. EKS is the first supported provider, while the managed-DatadogAgent flow remains provider-neutral and extensible. Existing DatadogAgent and DatadogAgentInternal reconciliation behavior is unchanged.
Minimum Agent Versions
Describe your test plan
CGO_ENABLED=0 go test ./cmd ./pkg/config ./pkg/fleet ./pkg/remoteconfigCGO_ENABLED=0 make lintChecklist
bug,enhancement,refactoring,documentation,tooling, and/ordependenciesqa/skip-qalabel