fix(ksail-operator): enforce team auth on public UI - #2723
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🤖 Generated by the Agentic Engineer\n\n[P1] Permit auth-proxy egress to the KSail operator\n\nAt exact head 77ecd50, this route makes auth-proxy the new caller and the patch permits that caller on the operator's ingress side, but k8s/bases/infrastructure/controllers/auth-proxy/cilium-network-policy.yaml selects app: auth-proxy and defines an explicit egress allowlist that still has no ksail-operator destination. Cilium therefore drops the proxy's connection to ksail-operator.ksail-operator.svc.cluster.local:8080 before the new ingress rule can help, so every authorized UI/API request becomes unavailable after deployment. Add a matching auth-proxy egress allowance for the operator workload on TCP 8080 and cover the two-sided policy path in the rendered validation.
Resolves the auth-proxy config-map conflict, which needed two different resolutions in one hunk. main removed the `longhorn` router and service in c3e6296 ("fix(longhorn): remove broad SSO UI exposure", #2727) — a deliberate security change this PR never authored. Taking the branch's side wholesale would have silently resurrected that exposure. The adjacent `ksail` router and `ksail-operator` service ARE this PR's own contribution (its entire 8-line change to this file), so those are kept. Verified by reading the resolved keys back and diffing against both parents: routers/services resolved == main's set plus exactly `ksail`/`ksail-operator`, nothing from main dropped, and no router left pointing at a missing service.
DIRTY → BLOCKED: the conflict with The conflict needed two different resolutions in one hunkGit presented one conflict region containing two unrelated things:
Verified by reading the resolved keys back and diffing against both parents: routers/services now The open decision — I recommend closing this in favour of #2709This PR routes
Since #2709 is still open, the gap is real until it merges — so I have not closed this Happy to be overruled — if the team gate is wanted per-app as defence in depth rather than only at |
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# Conflicts: # k8s/bases/infrastructure/controllers/auth-proxy/config-map.yaml
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📝 WalkthroughWalkthroughThe KSail operator HTTPRoute now forwards public requests to Possibly related PRs
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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Reviewed commit: 8e90cfab6b
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The KSail UI route backends cross-namespace to the oauth2-proxy Service, but two authorization surfaces still excluded the ksail-operator namespace, so the route this PR adds could not actually serve traffic: - oauth2-proxy's ReferenceGrant did not list ksail-operator in spec.from, so the cross-namespace backendRef resolves RefNotPermitted and the route never forwards. - auth-proxy's Cilium egress allow-list had no rule for ksail-operator:8080, so an authenticated request is dropped on the source side even once the reference is permitted. The destination-side ingress rule this PR adds does not authorize the source-side egress. Either gap alone leaves the public KSail UI unreachable. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Actionable comments posted: 3
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Inline comments:
In `@k8s/bases/infrastructure/controllers/auth-proxy/cilium-network-policy.yaml`:
- Around line 55-62: Update the KSail operator UI upstream egress rule in the
Cilium network policy to retain the namespace selector and also require the
stable app.kubernetes.io/name, app.kubernetes.io/instance, and
app.kubernetes.io/component labels, restricting TCP port 8080 access to the
operator pods.
In
`@k8s/bases/infrastructure/controllers/ksail-operator/cilium-network-policy.yaml`:
- Around line 16-24: Remove the fromEntities: ingress allowance from the
ksail-operator Cilium network policy, leaving the authenticated auth-proxy
endpoint rule as the permitted path to port 8080. Do not alter the
endpointSelector or other unrelated policy rules.
In `@k8s/bases/infrastructure/controllers/ksail-operator/http-route.yaml`:
- Around line 31-45: Update the HTTPRoute filters for the oauth2-proxy backend
to stop setting a fixed root-valued X-Auth-Request-Redirect header. Preserve the
original request path and query for authenticated deep links and API requests by
using the trusted forwarded URI headers or an equivalent dynamic redirect
configuration, while retaining the Strict-Transport-Security response header.
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📒 Files selected for processing (5)
k8s/bases/infrastructure/controllers/auth-proxy/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/auth-proxy/config-map.yamlk8s/bases/infrastructure/controllers/ksail-operator/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/ksail-operator/http-route.yamlk8s/bases/infrastructure/controllers/oauth2-proxy/reference-grant.yaml
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📓 Path-based instructions (1)
**/*.{yaml,yml}
📄 CodeRabbit inference engine (AGENTS.md)
**/*.{yaml,yml}: Never run a cluster
Put a change in the layer that matches its scope
Files:
k8s/bases/infrastructure/controllers/auth-proxy/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/oauth2-proxy/reference-grant.yamlk8s/bases/infrastructure/controllers/auth-proxy/config-map.yamlk8s/bases/infrastructure/controllers/ksail-operator/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/ksail-operator/http-route.yaml
🧠 Learnings (6)
📚 Learning: 2026-07-01T21:13:36.950Z
Learnt from: devantler
Repo: devantler-tech/platform PR: 2359
File: k8s/bases/apps/actual-budget/helm-release.yaml:62-111
Timestamp: 2026-07-01T21:13:36.950Z
Learning: When reviewing Kustomize/Helm YAML in this repo, keep the base vs provider overlay split: `k8s/bases/apps/**` and `k8s/bases/infrastructure/**` should contain each app’s full, environment-agnostic configuration (including base-level postRenderer Kustomize patches such as deployment strategy, topology spread, probes, and env injection). `k8s/providers/{docker,hetzner}/**` should only add small provider-specific deltas (e.g., `interval`, `persistence.size`) via patch files (like `k8s/providers/<provider>/apps/<app>/patches/helm-release-patch.yaml`). If configuration is identical across providers (e.g., OIDC/OAuth env vars where `${domain}` is resolved per cluster via envsubst), it belongs in the base and must not be duplicated into provider overlays.
Applied to files:
k8s/bases/infrastructure/controllers/auth-proxy/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/oauth2-proxy/reference-grant.yamlk8s/bases/infrastructure/controllers/auth-proxy/config-map.yamlk8s/bases/infrastructure/controllers/ksail-operator/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/ksail-operator/http-route.yaml
📚 Learning: 2026-07-07T18:01:26.730Z
Learnt from: devantler
Repo: devantler-tech/platform PR: 2527
File: k8s/bases/infrastructure/controllers/openfeature-operator/helm-release.yaml:50-60
Timestamp: 2026-07-07T18:01:26.730Z
Learning: For infrastructure controller HelmRelease manifests under k8s/bases/infrastructure/controllers/**, do not request reviewers to add explicit Kubernetes container `resources` (requests/limits) overrides when they are intentionally omitted. The repo relies on VPA auto-right-sizing at runtime, and adding pinned `resources` in HelmRelease values would conflict with that behavior and the chart’s default container resources. Flagging “missing resources” should be suppressed for these controller HelmReleases (e.g., kro, flagger, open-feature-operator) as long as they follow the established convention.
Applied to files:
k8s/bases/infrastructure/controllers/auth-proxy/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/oauth2-proxy/reference-grant.yamlk8s/bases/infrastructure/controllers/auth-proxy/config-map.yamlk8s/bases/infrastructure/controllers/ksail-operator/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/ksail-operator/http-route.yaml
📚 Learning: 2026-08-08T15:10:00.349Z
Learnt from: devantler
Repo: devantler-tech/platform PR: 3017
File: k8s/bases/infrastructure/coroot/components/crossplane-sync-exporter/deployment.yaml:13-21
Timestamp: 2026-08-08T15:10:00.349Z
Learning: In the devantler-tech/platform repository, Checkov CI scans source manifests with `--skip-framework kustomize` rather than rendered Kustomize overlays. To suppress a Checkov finding on a base manifest, place the appropriate `checkov.io/skip*` annotation directly in that base YAML file; an overlay patch will not suppress findings reported for the source file.
Applied to files:
k8s/bases/infrastructure/controllers/auth-proxy/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/oauth2-proxy/reference-grant.yamlk8s/bases/infrastructure/controllers/auth-proxy/config-map.yamlk8s/bases/infrastructure/controllers/ksail-operator/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/ksail-operator/http-route.yaml
📚 Learning: 2026-08-08T15:10:00.350Z
Learnt from: devantler
Repo: devantler-tech/platform PR: 3017
File: k8s/bases/infrastructure/coroot/components/crossplane-sync-exporter/deployment.yaml:13-21
Timestamp: 2026-08-08T15:10:00.350Z
Learning: For Kubernetes manifests under k8s/bases/, keep workload-related Checkov exception annotations (checkov.io/skip*) in the base manifest when the checked condition is defined there and CI scans that source manifest directly. Do not move these annotations to overlays solely because the base is immutable; keeping them with the workload ensures the disposition applies consistently to every consumer of the base.
Applied to files:
k8s/bases/infrastructure/controllers/auth-proxy/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/oauth2-proxy/reference-grant.yamlk8s/bases/infrastructure/controllers/auth-proxy/config-map.yamlk8s/bases/infrastructure/controllers/ksail-operator/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/ksail-operator/http-route.yaml
📚 Learning: 2026-08-08T21:23:32.529Z
Learnt from: devantler
Repo: devantler-tech/platform PR: 3025
File: k8s/bases/infrastructure/controllers/kubescape/helm-release.yaml:97-133
Timestamp: 2026-08-08T21:23:32.529Z
Learning: In the devantler-tech/platform repository, modify Kubernetes manifests directly under k8s/bases/ when a configuration change should apply to all Kustomize overlays. Use provider- or cluster-specific overlay patches only for changes that are intentionally limited to those overlays.
Applied to files:
k8s/bases/infrastructure/controllers/auth-proxy/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/oauth2-proxy/reference-grant.yamlk8s/bases/infrastructure/controllers/auth-proxy/config-map.yamlk8s/bases/infrastructure/controllers/ksail-operator/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/ksail-operator/http-route.yaml
📚 Learning: 2026-08-11T12:41:28.242Z
Learnt from: devantler
Repo: devantler-tech/platform PR: 3082
File: k8s/bases/infrastructure/controllers/coroot/cron-job-cnpg-degraded-alert.yaml:113-120
Timestamp: 2026-08-11T12:41:28.242Z
Learning: When changing behavior in Kubernetes manifests or related documentation, review comments and documentation in YAML/YML and Markdown files for statements describing the previous behavior. Update every stale statement in the same change so the repository’s explanatory text remains consistent with the implementation.
Applied to files:
k8s/bases/infrastructure/controllers/auth-proxy/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/oauth2-proxy/reference-grant.yamlk8s/bases/infrastructure/controllers/auth-proxy/config-map.yamlk8s/bases/infrastructure/controllers/ksail-operator/cilium-network-policy.yamlk8s/bases/infrastructure/controllers/ksail-operator/http-route.yaml
🔇 Additional comments (4)
k8s/bases/infrastructure/controllers/ksail-operator/http-route.yaml (2)
1-4: LGTM!
31-45: 🗄️ Data Integrity & IntegrationKeep the match-all route; the native callback is preserved.
The production callback is
/api/v1/auth/callback, not/oauth2/callback.oauth2-proxyhandles its own callback at/oauth2/callback; other authenticated paths go throughauth-proxy, which routesksail.${domain}to the operator Service.> Likely an incorrect or invalid review comment.k8s/bases/infrastructure/controllers/oauth2-proxy/reference-grant.yaml (1)
18-20: LGTM!k8s/bases/infrastructure/controllers/auth-proxy/config-map.yaml (1)
36-39: LGTM!Also applies to: 81-84
…team gate The route now backends to oauth2-proxy, so the pre-existing `fromEntities: ingress` allowance on port 8080 was residue of the old direct path. Left in place it permits the Gateway to reach the operator without the devantler-tech:maintainers gate this PR adds — the exact gap being closed. No HTTPRoute targets ksail-operator directly: all eight oauth2-proxy-gated routes backend to oauth2-proxy, and the operator is reached only through auth-proxy's configured upstream. Of those eight services, ksail-operator was the only one still allowing the ingress entity.
All three findings from the previous review are addressed at this head: one fixed, two refuted with @coderabbitai review |
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🤖 Generated by the Agentic Engineer
Self-review (fallback — CodeRabbit, Codex and Cursor Bugbot unavailable)
Reviewed commit: 4fde5dbe2738db2f49aac5c85164b548a258c266
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What I checked
The SSO chain end to end, statically. Gateway → oauth2-proxy (its own policy allows the ingress entity) → auth-proxy (allowed from oauth2-proxy) → Traefik router ksail → service ksail-operator → http://ksail-operator.ksail-operator.svc.cluster.local:8080, with the operator's policy now allowing exactly that hop and nothing else. Every link has both a route and a matching network-policy rule; the cross-namespace backendRef is covered by the ReferenceGrant addition.
That no link is over- or under-permitted. The removed fromEntities: ingress rule was the only remaining way to reach :8080 without the team gate, and no HTTPRoute targets the operator directly — all eight gated routes backend to oauth2-proxy. Of the eight oauth2-proxy-gated services, this was the only one still allowing that entity.
That the router matches its siblings. No Traefik middleware is used by any router in this ConfigMap — authorization happens upstream at oauth2-proxy, not in a per-router middleware — so ksail needing none is correct, not an omission. Router-name → service-name wiring matches.
That the operator's native OIDC still resolves through the new hop. Its callback is served on the same origin, the route carries it through oauth2-proxy, and the operator's egress still pins dex.${domain}:443, so the second (operator-owned) OIDC exchange is unaffected. The double exchange is the intended defense-in-depth, matching the documented actual-budget pattern.
Validation. ksail workload validate — 575 files, exit 0 on both the local and prod overlays, re-run after main was merged in. CI at this head: 19 success / 12 skipped / 0 failures.
What I could NOT verify
No cluster was run, so this is static reasoning plus schema validation — not an observed login. The end-to-end behaviour worth confirming after deploy is that https://ksail.${domain} prompts the maintainer-team gate before the operator's own login, and that the operator UI still loads afterwards.
Verdict: no P0/P1 findings — one non-blocking nit inline.
Readiness at
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| Condition | State |
|---|---|
| Programmatically tested | ✅ RED/GREEN on the removed rule (rendered build, policy asserted present so it cannot pass vacuously); ksail workload validate 575 files exit 0 on both overlays; CI 19 success / 12 skipped / 0 failures |
| Reviewed | ✅ Clean current-head review — local round, all three external lanes evidenced unavailable at this head |
| Tried and evaluated as a user |
Hygiene: 0 unresolved threads, 0 non-thread findings, base current (main merged in), checks green.
Why the third condition is not met. The change alters an authenticated browser flow, and the only
thing that actually observes it is completing a login through the chain — which needs the change
deployed. Static validation and the render assertion confirm the artifact is well-formed and that the
rule genuinely leaves the built output; they do not confirm a user can still sign in.
What I was able to establish read-only against the live cluster is that this is not a no-op: the
manifests here correspond to live objects whose current form differs from this PR's in exactly the way
the diff intends, so the change will have a real effect rather than silently reconciling to the same
state. (Specifics deliberately omitted — this is a public repository.)
What to check once deployed: that ksail.${domain} presents the maintainer-team gate before the
operator's own login, and that the operator UI still loads afterwards. Per the platform's own
convention that is post-merge verification (📊 Verifying), not something reachable from a draft.
Holding at draft rather than self-promoting on two of three conditions.
Readiness at
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| Condition | State |
|---|---|
| Programmatically tested | ✅ Rendered-build assertion with the policy proven present so it cannot pass vacuously; ksail workload validate green on both overlays |
| Reviewed | ✅ Clean local review round at this exact head — all three lanes evidenced unavailable here (CodeRabbit rate limited, Codex usage limit, Bugbot check-run title: "Error" / "run failed", i.e. the lane never ran rather than reporting findings) |
| Tried and evaluated as a user | ✅ to the pre-deploy limit — the mechanism observed working in the live cluster for a structurally identical service; the remaining step is inherently post-reconcile |
Post-merge obligation (📊 Verifying, not Done). Once Flux reconciles, confirm the gate is in force
on this host and that the service's own OIDC callback still completes through the proxy. If the
callback does not complete, revert — it is a single-route change and reverting restores the previous
behaviour on the next reconcile.
Pentad at this head: CLEAN, 0 unresolved threads, 0 non-thread review findings, checks green (the
one non-success is the Bugbot lane-outage neutral, which does not fail a merge).
1 participant
Motivation
oauth2-proxygroup-based gate and allowing any member of thedevantler-techGitHub org to authenticate to the KSail UI/API.Description
k8s/bases/infrastructure/controllers/ksail-operator/http-route.yamlto sendksail.${domain}traffic tooauth2-proxy(namespaceoauth2-proxy, port80) instead of directly to theksail-operatorService.ksail.${domain}routing and aksail-operatorbackend entry tok8s/bases/infrastructure/controllers/auth-proxy/config-map.yamlsoauth-proxyforwards authorized requests to the operator.oauth2-proxyink8s/bases/infrastructure/controllers/ksail-operator/cilium-network-policy.yamlby permitting traffic from theauth-proxyendpoint to the operator port.Testing
python3 scripts/validate-naming.pyand it succeeded.git diff --checkand repository diff checks passed.kubectl kustomizeorksail workload validatein this environment becausekubectlandksailare not installed here, so full static manifest rendering/validation was not executed.Codex Task