feat(operator): add TLS/mTLS auto-injection via InfrastructureConfiguration - #13689
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feat(operator): add TLS/mTLS auto-injection via InfrastructureConfiguration#13689walkoss wants to merge 2 commits into
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WalkthroughThe operator adds NATS and TCP TLS fields to ChangesOperator TLS
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: 🟡 Moderate · up to The PR adds platform-level TLS/mTLS environment injection, but its documented Secret-mount example uses filenames that do not match the configured certificate paths, which can make otherwise valid deployments fail to start; a bounded Helm validation gap also remains. Merge should wait for these fixes or explicit owner acceptance. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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Actionable comments posted: 4
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Inline comments:
In `@deploy/operator/internal/dynamo/graph_test.go`:
- Around line 1840-1889: Replace the two paragraph comments preceding the TLS
test-case table and the empty-configuration subtest with t.Log headings that
describe each test step, keeping the existing test logic unchanged.
In `@deploy/operator/internal/dynamo/graph.go`:
- Around line 1593-1652: Add a one-line story comment immediately before the TLS
environment-variable injection block beginning with NATSTLSCAPath, and keep one
blank line separating it from the preceding block.
In
`@docs/fern/pages/developer-guide/knowledge-base/kubernetes/kubernetes-operator/tls.md`:
- Around line 85-92: Update the Kubernetes TLS volume configuration for the
tls-certs Secret so its mounted filenames match the configured
/etc/certs/server/cert.pem and /etc/certs/server/key.pem paths, either by using
the default paths in the TLS configuration or by explicitly mapping tls.crt and
tls.key to cert.pem and key.pem.
In
`@docs/fern/pages/reference/kubernetes-api/additional-resources/api-reference-k8s.md`:
- Around line 3331-3340: Regenerate the Kubernetes API reference from its source
of truth instead of editing generated content directly. Update
docs/fern/pages/reference/kubernetes-api/additional-resources/api-reference-k8s.md
lines 3331-3340 and
docs/fern/pages/reference/kubernetes-api/full-api-reference.mdx lines 4496-4534
through the generator; both sites require regeneration, with no direct page
edits.
🪄 Autofix
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
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📒 Files selected for processing (12)
deploy/helm/charts/platform/components/operator/templates/operator-config.yamldeploy/helm/charts/platform/components/operator/templates/validate-values.yamldeploy/helm/charts/platform/components/operator/values.yamldeploy/operator/api/config/v1alpha1/types.godeploy/operator/api/config/validation/validation.godeploy/operator/internal/dynamo/graph.godeploy/operator/internal/dynamo/graph_test.godocs/fern/index.ymldocs/fern/pages/developer-guide/knowledge-base/kubernetes/kubernetes-operator/tls.mddocs/fern/pages/reference/components/tls-configuration.mdxdocs/fern/pages/reference/kubernetes-api/additional-resources/api-reference-k8s.mddocs/fern/pages/reference/kubernetes-api/full-api-reference.mdx
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…ration Add 10 TLS certificate path fields to InfrastructureConfiguration so the operator injects DYN_TCP_TLS_* and NATS_TLS_* env vars into all DGD pods automatically. This eliminates per-component env var setup for TLS. Fields: natsTLSCAPath, natsTLSClientCertPath, natsTLSClientKeyPath, tcpTLSCertPath, tcpTLSKeyPath, tcpTLSCAPath, tcpTLSClientCertPath, tcpTLSClientKeyPath, tcpTLSClientCAPath, tcpTLSServerName. tcpTLSServerName overrides the TLS SNI hostname for TCP clients dialing by IP, so certs with DNS SANs (e.g. *.svc.cluster.local) verify correctly without per-component env config. The operator's AddStandardEnvVars appends one EnvVar per non-empty path, and the platform Helm chart renders them into the operator ConfigMap. Operator-side validation rejects partial cert/key pairs (both TCP and NATS). Chart-side validation requires natsAddr to use tls:// when any natsTLS* field is set. A unit test (TestAddStandardEnvVars_TLS) verifies each field injects the matching env var and that an empty config injects none. The generated K8s API reference (api-reference-k8s.md + full-api-reference.mdx) is regenerated. Closes ai-dynamo#10809. Signed-off-by: Walid <walid.elbouchikhi@datadoghq.com>
Move operator-level TLS/mTLS auto-injection guidance out of the transport- agnostic TLS reference into a dedicated Operator TLS page under Kubernetes Operator, since it is Kubernetes/operator-specific. Replace the placeholder note in tls-configuration.mdx with a cross-link, add the new page to the fern navigation, and cross-link back to the TLS reference. The Operator TLS page documents the Helm values (with the dynamo-operator. prefix for the platform chart), the --set examples, a volume/mount example for certificate delivery, and a note that NATS TLS requires a tls:// server address. The TLS reference gains an "Enabling TLS on the NATS server" subsection showing the nats.config.nats.tls chart values for one-way TLS and mTLS. Signed-off-by: Walid <walid.elbouchikhi@datadoghq.com>
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Summary
The final PR of the Dynamo TLS/mTLS stack (#10809). With the runtime TLS/mTLS support landed in #10921, #12533, #13096, and #13528, this adds the operator/Helm glue so TLS can be configured once at the platform level and auto-injected into every
DynamoGraphDeploymentpod — instead of settingDYN_TCP_TLS_*/NATS_TLS_*env vars per component.There a few followup that I'll tackle before closing #10809
What this does
Adds 10 TLS certificate path fields to
InfrastructureConfiguration:natsTLSCAPathNATS_TLS_CA_CERT_PATHnatsTLSClientCertPathNATS_TLS_CLIENT_CERT_PATHnatsTLSClientKeyPathNATS_TLS_CLIENT_KEY_PATHtcpTLSCertPathDYN_TCP_TLS_CERT_PATHtcpTLSKeyPathDYN_TCP_TLS_KEY_PATHtcpTLSCAPathDYN_TCP_TLS_CA_CERT_PATHtcpTLSClientCertPathDYN_TCP_TLS_CLIENT_CERT_PATHtcpTLSClientKeyPathDYN_TCP_TLS_CLIENT_KEY_PATHtcpTLSClientCAPathDYN_TCP_TLS_CLIENT_CA_CERT_PATHtcpTLSServerNameDYN_TCP_TLS_SERVER_NAMEtcpTLSServerNameoverrides the TLS SNI hostname for TCP clients dialing by IP, so certs with DNS SANs (e.g.*.svc.cluster.local) verify correctly without per-component env config.The operator's
AddStandardEnvVarsappends oneEnvVarper non-empty path, so every DGD pod the operator creates gets the matching env vars. Per-component env vars inpodTemplatestill take precedence (via the existingMergeEnvsorder).How it works
Operator config type (
deploy/operator/api/config/v1alpha1/types.go): 10 new string fields onInfrastructureConfiguration, withomitemptyjson tags. All plain strings, so the generated deepcopy (*out = *in) is unchanged — no CRD manifest regen needed (this is operator config, not a CRD).Env injection (
deploy/operator/internal/dynamo/graph.go):AddStandardEnvVarsappends acorev1.EnvVarfor each non-empty field, before theMergeEnvs(standard, container.Env)call that letspodTemplateenv override.Validation — operator-side (
validation.go) enforces the full TLS dependency chain so misconfigurations fail at operator startup rather than per-pod at runtime:tcpTLSCAPath(the operator doesn't exposeDYN_TCP_TLS_INSECURE, so without a CA the client stays plaintext while the server is TLS)tcpTLSCAPath,tcpTLSClientCertPath,tcpTLSClientKeyPath) requires server cert/key (since every DGD pod is both TCP client and server, client-side TLS without server-side TLS leaves peer servers plaintext)tcpTLSClientCAPathrequires server cert/keynatsAddressto be non-empty and use thetls://scheme (the runtime fails closed otherwise)Chart-side (
validate-values.yaml) also requiresnatsAddrto usetls://when anynatsTLS*field is set.Helm (
deploy/helm/charts/platform/components/operator/): theoperator-config.yamltemplate renders the new fields into the operator ConfigMap'sinfrastructure:block (gated on non-empty), andvalues.yamlexposes them as empty defaults.Docs: new Operator TLS page under Kubernetes Operator (with
dynamo-operator.value prefix,--setexamples, a volume/mount example, and the NATStls://note), a cross-link from the TLS reference (replacing the "future PR [CONTRIBUTION]: Add opt-in TLS and mTLS support to NATS and TCP transports #10809" placeholder), an "Enabling TLS on the NATS server" subsection showing thenats.config.nats.tlschart values, and a fern nav entry.Generated API reference:
api-reference-k8s.mdandfull-api-reference.mdxregenerated from the Go types.Testing
go build ./...✅go vet ./internal/dynamo/✅go test ./internal/dynamo/ ./api/config/validation/— full suite passes ✅TestAddStandardEnvVars_TLS: table test covering all 10 fields (each injects the matching env var) + an empty-config case (injects none) ✅TestValidateInfrastructure_TLS: 13 subtests covering every valid and invalid TLS configuration combination (cert without key, cert+key without CA, CA without server cert, client cert without CA, client cert without server cert, NATS TLS withoutnatsAddress, NATS TLS withnats://, etc.) ✅controller-gen object(deepcopy regen) — zero diff ✅gen_kubernetes_api.py --check(the CI gate) — "unchanged", exit 0 ✅helm templatewithdiscoveryBackend=kubernetes:infrastructure:block renders all 10 fields, correctly quoted ✅infrastructure:block absent ✅natsAddronly → block renders with justnatsAddress:, pre-existing behavior preserved ✅nats://→ chart validation fails with a clear error ✅tls://→ renders OK ✅helm lintoperator chart → 0 charts failed ✅fern check→ no new errors (28 pre-existing, unrelated) ✅gofmtclean on all changed Go files ✅Not in scope
nats.config.nats.tls). Documented in the TLS reference but not implemented in this PR.rust-testgate.Stack