docs: update Headlamp install namespace from kube-system to headlamp

Updates documentation to reflect that Headlamp is installed in the
'headlamp' namespace (not 'kube-system'). Only documentation files
that reference the Headlamp install namespace are changed.

Changed files:
- docs/deployment/production.md: NetworkPolicy namespaceSelector
- docs/troubleshooting/network-problems.md: NetworkPolicy namespaceSelector
- docs/user-guide/rbac-permissions.md: NetworkPolicy namespaceSelector
- e2e/README.md: kubectl commands for local E2E testing

Files NOT changed (upstream workload namespace - out of scope per PRI-340):
- Source files, tests, or configs referencing where Polaris runs

Co-Authored-By: Paperclip <noreply@paperclip.ing>

deployment/e2e-ci-runner-rbac.yaml

@@ -1,46 +1,12 @@
 ---
-# RBAC for the GitHub Actions CI runner to manage the E2E Headlamp instance.
+# RBAC for the GitHub Actions CI runner to manage E2E Headlamp instances.
 # CI-only test fixture — NOT for production use.
 #
-# Grants the ARC runner service account permissions in the privilegedescalation-dev
-# namespace to deploy and tear down a dedicated Headlamp instance via Helm.
+# This file is a REFERENCE ONLY. The canonical manifest lives in:
+#   privilegedescalation/infra/base/rbac/e2e-ci-runner-headlamp-rbac.yaml
+#
+# The infra repo is managed by Flux GitOps and is the source of truth.
+# Do not apply this file directly — it is kept here for developer reference only.
+#
 # E2E resources run in `privilegedescalation-dev` — nothing persists beyond a test run.
-#
-# Plugin is loaded via ConfigMap volume mount — no custom Docker images.
-#
-# Note: This RBAC is mirrored in privilegedescalation/infra (base/rbac/)
-# and managed by Flux GitOps. The infra repo is the source of truth.
-apiVersion: rbac.authorization.k8s.io/v1
-kind: Role
-metadata:
-  name: e2e-ci-runner
-  namespace: privilegedescalation-dev
-rules:
-  # Helm needs to manage these resources for the Headlamp chart
-  - apiGroups: ["apps"]
-    resources: ["deployments"]
-    verbs: ["get", "list", "create", "update", "patch", "delete", "watch"]
-  - apiGroups: [""]
-    resources: ["services", "serviceaccounts", "configmaps", "secrets", "events"]
-    verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
-  - apiGroups: [""]
-    resources: ["pods"]
-    verbs: ["get", "list", "watch"]
-  # Token creation for E2E test auth
-  - apiGroups: [""]
-    resources: ["serviceaccounts/token"]
-    verbs: ["create"]
----
-apiVersion: rbac.authorization.k8s.io/v1
-kind: RoleBinding
-metadata:
-  name: e2e-ci-runner-binding
-  namespace: privilegedescalation-dev
-subjects:
-  - kind: ServiceAccount
-    name: runners-privilegedescalation-gha-rs-no-permission
-    namespace: arc-runners
-roleRef:
-  kind: Role
-  name: e2e-ci-runner
-  apiGroup: rbac.authorization.k8s.io
+# RBAC is managed via Flux from privilegedescalation/infra — do not apply manually.

docs/deployment/production.md

@@ -160,7 +160,7 @@ spec:
     - from:
         - namespaceSelector:
             matchLabels:
-              kubernetes.io/metadata.name: kube-system
+              kubernetes.io/metadata.name: headlamp
         - podSelector:
             matchLabels:
               component: kube-apiserver

docs/troubleshooting/network-problems.md

@@ -41,7 +41,7 @@ spec:
     - from:
         - namespaceSelector:
             matchLabels:
-              kubernetes.io/metadata.name: kube-system
+              kubernetes.io/metadata.name: headlamp
         - podSelector:
             matchLabels:
               component: kube-apiserver

docs/user-guide/rbac-permissions.md

@@ -318,7 +318,7 @@ spec:
     - from:
         - namespaceSelector:
             matchLabels:
-              kubernetes.io/metadata.name: kube-system
+              kubernetes.io/metadata.name: headlamp
         - podSelector:
             matchLabels:
               component: kube-apiserver

e2e/README.md

@@ -41,8 +41,8 @@ The default base URL is `https://headlamp.animaniacs.farh.net`. Override with `H
 ### Option 2: K8s bearer token (port-forward)
 
 ```bash
-kubectl port-forward -n kube-system svc/headlamp 4466:80
-export HEADLAMP_TOKEN=$(kubectl create token headlamp -n kube-system)
+kubectl port-forward -n headlamp svc/headlamp 4466:80
+export HEADLAMP_TOKEN=$(kubectl create token headlamp -n headlamp)
 HEADLAMP_URL=http://localhost:4466 npm run e2e
 ```
 
@@ -143,7 +143,7 @@ cp .env.example .env
 
 # 3. Set environment variables
 export HEADLAMP_URL=https://your-headlamp-instance.com
-export HEADLAMP_TOKEN=$(kubectl create token headlamp -n kube-system)
+export HEADLAMP_TOKEN=$(kubectl create token headlamp -n headlamp)
 
 # 4. Run tests
 npm run e2e

scripts/deploy-e2e-headlamp.sh

@@ -11,7 +11,9 @@
 # Prerequisites:
 #   - Plugin built (dist/ exists with plugin-main.js + package.json)
 #   - kubectl configured with cluster access
-#   - RBAC applied: kubectl apply -f deployment/e2e-ci-runner-rbac.yaml
+# RBAC is managed via Flux from privilegedescalation/infra/base/rbac/e2e-ci-runner-headlamp-rbac.yaml.
+# The infra repo is the source of truth — do not apply this file directly.
+# Apply RBAC first: kubectl apply -f privilegedescalation/infra/base/rbac/e2e-ci-runner-headlamp-rbac.yaml
 #
 # Environment:
 #   E2E_NAMESPACE     — namespace for E2E Headlamp (default: privilegedescalation-dev)
@@ -35,7 +37,7 @@ fi
 echo "Checking RBAC permissions in namespace '${E2E_NAMESPACE}'..."
 if ! kubectl auth can-i delete configmaps -n "$E2E_NAMESPACE" --quiet 2>/dev/null; then
   echo "ERROR: Missing RBAC — cannot delete configmaps in namespace '${E2E_NAMESPACE}'." >&2
-  echo "  Apply RBAC first: kubectl apply -f deployment/e2e-ci-runner-rbac.yaml" >&2
+  echo "  Apply RBAC first: kubectl apply -f privilegedescalation/infra/base/rbac/e2e-ci-runner-headlamp-rbac.yaml" >&2
   exit 1
 fi
 

scripts/teardown-e2e-headlamp.sh

@@ -3,6 +3,9 @@
 #
 # Tears down the dedicated E2E Headlamp instance deployed by deploy-e2e-headlamp.sh.
 #
+# RBAC is managed via Flux from privilegedescalation/infra/base/rbac/e2e-ci-runner-headlamp-rbac.yaml.
+# The infra repo is the source of truth — do not apply this file directly.
+#
 # Environment:
 #   E2E_NAMESPACE  — namespace to clean up (default: privilegedescalation-dev)
 #   E2E_RELEASE    — release/resource name prefix (default: headlamp-e2e)