feat: Add TLS support for jumpstarter-telemetry with the operator

[bkhizgiy]

Add TLS support to the telemetry deployment when cert-manager is enabled.
Include the telemetry CA certificate in the controller ConfigMap so exporters can verify TLS connections.
Add test coverage for the this functionality

[coderabbitai]

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Reviewing files that changed from the base of the PR and between e8c0e76 and 2e9587d.

📒 Files selected for processing (3)

• controller/deploy/operator/internal/controller/jumpstarter/jumpstarter_controller.go
• controller/deploy/operator/internal/controller/jumpstarter/telemetry.go
• controller/deploy/operator/internal/controller/jumpstarter/telemetry_test.go

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📝 Walkthrough

Walkthrough

Telemetry configuration now supports gRPC TLS with cert-manager or a manually configured Secret. The controller resolves CA certificates, tracks TLS Secret changes, mounts credentials into telemetry deployments, and retries while self-signed CA data is unavailable.

Changes

Telemetry TLS support

Layer / File(s)	Summary
Telemetry TLS configuration contract controller/deploy/operator/api/v1alpha1/jumpstarter_types.go, controller/deploy/operator/api/v1alpha1/zz_generated.deepcopy.go, controller/deploy/operator/config/crd/bases/operator.jumpstarter.dev_jumpstarters.yaml, controller/deploy/operator/internal/controller/jumpstarter/telemetry_test.go	TelemetryConfig now includes gRPC TLS settings. The CRD and deepcopy methods expose the new configuration. Tests cover certificate sources, omission rules, and missing CA Secrets.
Telemetry certificate resolution and retry handling controller/deploy/operator/internal/controller/jumpstarter/jumpstarter_controller.go, controller/deploy/operator/internal/controller/jumpstarter/certificates.go, controller/deploy/operator/internal/controller/jumpstarter/telemetry.go, controller/deploy/operator/internal/controller/jumpstarter/telemetry_test.go	The controller resolves CA and TLS Secret data. It logs unavailable CA data, continues reconciliation, retries self-signed CA convergence, and indexes cert-manager or manually configured TLS Secrets.
Telemetry deployment and Secret renewal handling controller/deploy/operator/internal/controller/jumpstarter/telemetry.go, controller/deploy/operator/internal/controller/jumpstarter/hash_annotations_test.go, controller/deploy/operator/internal/controller/jumpstarter/telemetry_test.go	Telemetry deployments mount TLS credentials, set certificate environment variables, and add a TLS Secret hash annotation. Tests cover Secret naming, hashing, mounts, annotations, and disabled TLS behavior.

Estimated code review effort: 3 (Moderate) | ~25 minutes

Merge Risk: 🟡 Moderate · up to 2e958

Telemetry TLS configuration still does not provide exporters with the CA bundle required to verify the server certificate, so telemetry connections may fail or operate without certificate verification. This bounded integration issue should be addressed or explicitly accepted before merging.

Sequence Diagram(s)

sequenceDiagram
  participant JumpstarterController
  participant CASecret
  participant TLSSecret
  participant TelemetryDeployment
  participant TelemetryPod
  JumpstarterController->>CASecret: resolve telemetry CA certificate
  CASecret-->>JumpstarterController: certificate or unavailable result
  JumpstarterController->>TLSSecret: resolve TLS Secret and data hash
  JumpstarterController->>TelemetryDeployment: set TLS configuration and hash annotation
  TelemetryDeployment->>TelemetryPod: set TLS environment variables and Secret mount
  TelemetryPod->>TLSSecret: read TLS credentials

Loading

Poem

A rabbit checks the TLS trail

Secrets refresh the pod detail
CA data guides the flow
Hashes tell deployments when to go
Hoppy tests confirm the route

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the primary change: adding TLS support for jumpstarter-telemetry through the operator.
Description check	✅ Passed	The description directly covers telemetry TLS support, CA certificate configuration, and test coverage included in the changeset.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 7 files.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[mangelajo]

Looking good, but we need to fix some gaps compared to router/controller certs.

[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In `@controller/deploy/operator/api/v1alpha1/jumpstarter_types.go`:
- Around line 320-325: Add a manual CA reference to TelemetryGRPCConfig and
update buildConfig to read its PEM content into config.Telemetry.Certificate
when cert-manager is disabled, while preserving automatic cert-manager behavior.
Extend the envtest coverage for manual TLS to verify the generated ConfigMap
contains the configured CA certificate.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: b2387e62-3463-4326-8620-34c4df7edc4f

📥 Commits

Reviewing files that changed from the base of the PR and between 71d5132 and e8c0e76.

📒 Files selected for processing (8)

• controller/deploy/operator/api/v1alpha1/jumpstarter_types.go
• controller/deploy/operator/api/v1alpha1/zz_generated.deepcopy.go
• controller/deploy/operator/config/crd/bases/operator.jumpstarter.dev_jumpstarters.yaml
• controller/deploy/operator/internal/controller/jumpstarter/certificates.go
• controller/deploy/operator/internal/controller/jumpstarter/hash_annotations_test.go
• controller/deploy/operator/internal/controller/jumpstarter/jumpstarter_controller.go
• controller/deploy/operator/internal/controller/jumpstarter/telemetry.go
• controller/deploy/operator/internal/controller/jumpstarter/telemetry_test.go

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[mangelajo]

@bkhizgiy have an eye at the comment in https://github.com/jumpstarter-dev/jumpstarter/pull/1023/changes#diff-55b7b5cfeb5b2fcd9f1d83431b263d743cfa0b0ea3c778db2395e81984e6ee60R1327 (that's the important one)

[bkhizgiy]

@mangelajo can you please take another look when you have a moment:)