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charts: Remove ClusterRole default
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lines changed

‎charts/headlamp/Chart.yaml‎

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@@ -28,6 +28,11 @@ annotations:
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url: https://keys.openpgp.org/vks/v1/by-fingerprint/2956B7F7167769370C93730C7264DA7B85D08A37
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artifacthub.io/category: monitoring-logging
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artifacthub.io/license: Apache-2.0
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artifacthub.io/changes: |
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- kind: changed
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description: The default ClusterRoleBinding is no longer created by default (ClusterRoleBinding creation is now disabled). Users who want a ClusterRoleBinding must now explicitly enable it and provide a clusterRoleName value, as the default clusterRoleName is now empty.
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- kind: added
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description: Pre-upgrade hook automatically removes old ClusterRoleBinding during upgrades
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artifacthub.io/screenshots: |
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- title: Cluster Overview
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url: https://raw.githubusercontent.com/kubernetes-sigs/headlamp/screenshots/screenshots/cluster_overview.png

‎charts/headlamp/README.md‎

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@@ -53,6 +53,16 @@ $ helm install my-headlamp headlamp/headlamp \
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--set ingress.hosts[0].paths[0].path=/
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```
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## Upgrading
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### Security Improvements
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Starting from version 0.39.0, the chart implements enhanced security by default:
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- **Removed Permissions**: The default ClusterRoleBinding creation has been disabled (`create: false`), removing the previous `cluster-admin` binding.
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**Automatic Migration**: A pre-upgrade hook automatically removes the old `headlamp-admin` ClusterRoleBinding during upgrades to help migrate to the new security configuration. The hook only removes ClusterRoleBindings that were created by Helm, preserving any user-created resources with the same name.
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## Configuration
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### Core Parameters
@@ -148,8 +158,8 @@ config:
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| serviceAccount.create | bool | `true` | Create service account |
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| serviceAccount.name | string | `""` | Service account name |
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| serviceAccount.annotations | object | `{}` | Service account annotations |
151-
| clusterRoleBinding.create | bool | `true` | Create cluster role binding |
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| clusterRoleBinding.clusterRoleName | string | `"cluster-admin"` | Kubernetes ClusterRole name |
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| clusterRoleBinding.create | bool | `false` | Create cluster role binding |
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| clusterRoleBinding.clusterRoleName | string | `""` | Kubernetes ClusterRole name |
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| clusterRoleBinding.annotations | object | `{}` | Cluster role binding annotations |
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| hostUsers | bool | `true` | Run in host uid namespace |
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| podSecurityContext | object | `{}` | Pod security context (e.g., fsGroup: 2000) |

‎charts/headlamp/templates/NOTES.txt‎

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Original file line numberDiff line numberDiff line change
@@ -20,13 +20,15 @@
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echo "Visit http://127.0.0.1:8080 to use your application"
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kubectl --namespace {{ include "headlamp.namespace" . }} port-forward $POD_NAME 8080:$CONTAINER_PORT
2222
{{- end }}
23-
{{- if .Values.clusterRoleBinding.create }}
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{{- if and ( ge .Capabilities.KubeVersion.Major "1" ) ( ge .Capabilities.KubeVersion.Minor "24" ) }}
25-
2. Get the token using
26-
kubectl create token {{ include "headlamp.serviceAccountName" . }} --namespace {{ include "headlamp.namespace" . }}
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2. Create a service account using
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kubectl create serviceaccount {{ include "headlamp.serviceAccountName" . }}-admin --namespace {{ include "headlamp.namespace" . }}
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3. Create a clusterrolebinding using
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kubectl create clusterrolebinding {{ include "headlamp.serviceAccountName" . }}-admin --clusterrole=cluster-admin --serviceaccount={{ include "headlamp.namespace" . }}:{{ include "headlamp.serviceAccountName" . }}-admin
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4. Get the token using
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kubectl create token {{ include "headlamp.serviceAccountName" . }}-admin --namespace {{ include "headlamp.namespace" . }}
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{{- else }}
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2. Get the clusterrolebinding token using
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5. Get the clusterrolebinding token using
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export SECRET=$(kubectl get secrets --namespace {{ include "headlamp.namespace" . }} -o custom-columns=":metadata.name" | grep "{{ include "headlamp.fullname" . }}-token")
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kubectl get secret $SECRET --namespace {{ include "headlamp.namespace" . }} --template=\{\{.data.token\}\} | base64 --decode
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{{- end }}
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{{- end }}

‎charts/headlamp/templates/clusterrolebinding.yaml‎

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Original file line numberDiff line numberDiff line change
@@ -2,7 +2,7 @@
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: {{ include "headlamp.fullname" . }}-admin
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name: {{ include "headlamp.fullname" . }}
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labels:
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{{- include "headlamp.labels" . | nindent 4 }}
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{{- with .Values.clusterRoleBinding.annotations }}
@@ -12,7 +12,7 @@ metadata:
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: {{ .Values.clusterRoleBinding.clusterRoleName }}
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name: {{ required "clusterRoleBinding.clusterRoleName is required when clusterRoleBinding.create is true" .Values.clusterRoleBinding.clusterRoleName }}
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subjects:
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- kind: ServiceAccount
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name: {{ include "headlamp.serviceAccountName" . }}

‎charts/headlamp/templates/pre-upgrade-cleanup.yaml‎

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@@ -0,0 +1,127 @@
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: {{ include "headlamp.fullname" . }}-pre-upgrade
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namespace: {{ include "headlamp.namespace" . }}
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labels:
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{{- include "headlamp.labels" . | nindent 4 }}
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annotations:
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"helm.sh/hook": pre-upgrade
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"helm.sh/hook-weight": "-5"
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"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: {{ include "headlamp.fullname" . }}-pre-upgrade
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labels:
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{{- include "headlamp.labels" . | nindent 4 }}
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annotations:
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"helm.sh/hook": pre-upgrade
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"helm.sh/hook-weight": "-5"
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"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
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rules:
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- apiGroups: ["rbac.authorization.k8s.io"]
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resources: ["clusterrolebindings"]
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verbs: ["get", "delete"]
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: {{ include "headlamp.fullname" . }}-pre-upgrade
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labels:
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{{- include "headlamp.labels" . | nindent 4 }}
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annotations:
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"helm.sh/hook": pre-upgrade
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"helm.sh/hook-weight": "-4"
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"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: {{ include "headlamp.fullname" . }}-pre-upgrade
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subjects:
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- kind: ServiceAccount
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name: {{ include "headlamp.fullname" . }}-pre-upgrade
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namespace: {{ include "headlamp.namespace" . }}
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---
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apiVersion: batch/v1
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kind: Job
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metadata:
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name: {{ include "headlamp.fullname" . }}-pre-upgrade
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namespace: {{ include "headlamp.namespace" . }}
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labels:
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{{- include "headlamp.labels" . | nindent 4 }}
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annotations:
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"helm.sh/hook": pre-upgrade
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"helm.sh/hook-weight": "-3"
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"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
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spec:
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ttlSecondsAfterFinished: 300
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template:
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metadata:
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name: {{ include "headlamp.fullname" . }}-pre-upgrade
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labels:
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{{- include "headlamp.labels" . | nindent 8 }}
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spec:
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serviceAccountName: {{ include "headlamp.fullname" . }}-pre-upgrade
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restartPolicy: Never
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containers:
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- name: pre-upgrade-cleanup
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image: alpine/kubectl:1.35.0@sha256:e7e078c7bb25012141e5957d500834b2a5b266d6de20ecfa862b30d8a892fc7e
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command:
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- /bin/sh
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- -c
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- |
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set -e
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CRB_NAME="{{ include "headlamp.fullname" . }}-admin"
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RELEASE_NAME="{{ .Release.Name }}"
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echo "Checking for old ClusterRoleBinding ${CRB_NAME}..."
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if ! kubectl get clusterrolebinding "${CRB_NAME}" 2>/dev/null; then
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echo "ClusterRoleBinding ${CRB_NAME} not found, nothing to clean up"
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exit 0
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fi
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echo "Found ClusterRoleBinding ${CRB_NAME}, verifying it was created by Helm..."
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# Check if the ClusterRoleBinding has Helm labels indicating it was created by this chart
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MANAGED_BY=$(kubectl get clusterrolebinding "${CRB_NAME}" -o jsonpath='{.metadata.labels.app\.kubernetes\.io/managed-by}' 2>/dev/null || echo "")
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INSTANCE=$(kubectl get clusterrolebinding "${CRB_NAME}" -o jsonpath='{.metadata.labels.app\.kubernetes\.io/instance}' 2>/dev/null || echo "")
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APP_NAME=$(kubectl get clusterrolebinding "${CRB_NAME}" -o jsonpath='{.metadata.labels.app\.kubernetes\.io/name}' 2>/dev/null || echo "")
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if [ "${MANAGED_BY}" = "Helm" ] && [ "${INSTANCE}" = "${RELEASE_NAME}" ] && [ "${APP_NAME}" = "headlamp" ]; then
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echo "Confirmed: ${CRB_NAME} was created by this Helm release (${RELEASE_NAME})"
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echo "Deleting old ClusterRoleBinding..."
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kubectl delete clusterrolebinding "${CRB_NAME}"
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echo "Successfully deleted old ClusterRoleBinding"
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else
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echo "WARNING: ${CRB_NAME} exists but was NOT created by this Helm release"
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echo " managed-by: ${MANAGED_BY} (expected: Helm)"
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echo " instance: ${INSTANCE} (expected: ${RELEASE_NAME})"
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echo " app: ${APP_NAME} (expected: headlamp)"
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echo "Skipping deletion to preserve user-created resource"
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fi
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resources:
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requests:
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cpu: 10m
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memory: 64Mi
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limits:
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cpu: 100m
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memory: 128Mi
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securityContext:
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allowPrivilegeEscalation: false
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runAsNonRoot: true
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capabilities:
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drop:
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- ALL
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seccompProfile:
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type: RuntimeDefault
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volumeMounts:
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- name: tmp
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mountPath: /tmp
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volumes:
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- name: tmp
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emptyDir: {}

‎charts/headlamp/tests/expected_templates/azure-oidc-with-validators.yaml‎

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Original file line numberDiff line numberDiff line change
@@ -12,26 +12,6 @@ metadata:
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app.kubernetes.io/version: "0.39.0"
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app.kubernetes.io/managed-by: Helm
1414
---
15-
# Source: headlamp/templates/clusterrolebinding.yaml
16-
apiVersion: rbac.authorization.k8s.io/v1
17-
kind: ClusterRoleBinding
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metadata:
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name: headlamp-admin
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labels:
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helm.sh/chart: headlamp-0.39.0
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app.kubernetes.io/name: headlamp
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app.kubernetes.io/instance: headlamp
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app.kubernetes.io/version: "0.39.0"
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app.kubernetes.io/managed-by: Helm
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: cluster-admin
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subjects:
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- kind: ServiceAccount
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name: headlamp
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namespace: default
34-
---
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# Source: headlamp/templates/service.yaml
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apiVersion: v1
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kind: Service
@@ -142,3 +122,154 @@ spec:
142122
port: http
143123
resources:
144124
{}
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---
126+
# Source: headlamp/templates/pre-upgrade-cleanup.yaml
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: headlamp-pre-upgrade
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namespace: default
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labels:
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helm.sh/chart: headlamp-0.39.0
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app.kubernetes.io/name: headlamp
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app.kubernetes.io/instance: headlamp
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app.kubernetes.io/version: "0.39.0"
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app.kubernetes.io/managed-by: Helm
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annotations:
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"helm.sh/hook": pre-upgrade
140+
"helm.sh/hook-weight": "-5"
141+
"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
142+
---
143+
# Source: headlamp/templates/pre-upgrade-cleanup.yaml
144+
apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: headlamp-pre-upgrade
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labels:
149+
helm.sh/chart: headlamp-0.39.0
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app.kubernetes.io/name: headlamp
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app.kubernetes.io/instance: headlamp
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app.kubernetes.io/version: "0.39.0"
153+
app.kubernetes.io/managed-by: Helm
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annotations:
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"helm.sh/hook": pre-upgrade
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"helm.sh/hook-weight": "-5"
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"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
158+
rules:
159+
- apiGroups: ["rbac.authorization.k8s.io"]
160+
resources: ["clusterrolebindings"]
161+
verbs: ["get", "delete"]
162+
---
163+
# Source: headlamp/templates/pre-upgrade-cleanup.yaml
164+
apiVersion: rbac.authorization.k8s.io/v1
165+
kind: ClusterRoleBinding
166+
metadata:
167+
name: headlamp-pre-upgrade
168+
labels:
169+
helm.sh/chart: headlamp-0.39.0
170+
app.kubernetes.io/name: headlamp
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app.kubernetes.io/instance: headlamp
172+
app.kubernetes.io/version: "0.39.0"
173+
app.kubernetes.io/managed-by: Helm
174+
annotations:
175+
"helm.sh/hook": pre-upgrade
176+
"helm.sh/hook-weight": "-4"
177+
"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
178+
roleRef:
179+
apiGroup: rbac.authorization.k8s.io
180+
kind: ClusterRole
181+
name: headlamp-pre-upgrade
182+
subjects:
183+
- kind: ServiceAccount
184+
name: headlamp-pre-upgrade
185+
namespace: default
186+
---
187+
# Source: headlamp/templates/pre-upgrade-cleanup.yaml
188+
apiVersion: batch/v1
189+
kind: Job
190+
metadata:
191+
name: headlamp-pre-upgrade
192+
namespace: default
193+
labels:
194+
helm.sh/chart: headlamp-0.39.0
195+
app.kubernetes.io/name: headlamp
196+
app.kubernetes.io/instance: headlamp
197+
app.kubernetes.io/version: "0.39.0"
198+
app.kubernetes.io/managed-by: Helm
199+
annotations:
200+
"helm.sh/hook": pre-upgrade
201+
"helm.sh/hook-weight": "-3"
202+
"helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
203+
spec:
204+
ttlSecondsAfterFinished: 300
205+
template:
206+
metadata:
207+
name: headlamp-pre-upgrade
208+
labels:
209+
helm.sh/chart: headlamp-0.39.0
210+
app.kubernetes.io/name: headlamp
211+
app.kubernetes.io/instance: headlamp
212+
app.kubernetes.io/version: "0.39.0"
213+
app.kubernetes.io/managed-by: Helm
214+
spec:
215+
serviceAccountName: headlamp-pre-upgrade
216+
restartPolicy: Never
217+
containers:
218+
- name: pre-upgrade-cleanup
219+
image: alpine/kubectl:1.35.0@sha256:e7e078c7bb25012141e5957d500834b2a5b266d6de20ecfa862b30d8a892fc7e
220+
command:
221+
- /bin/sh
222+
- -c
223+
- |
224+
set -e
225+
CRB_NAME="headlamp-admin"
226+
RELEASE_NAME="headlamp"
227+
228+
echo "Checking for old ClusterRoleBinding ${CRB_NAME}..."
229+
230+
if ! kubectl get clusterrolebinding "${CRB_NAME}" 2>/dev/null; then
231+
echo "ClusterRoleBinding ${CRB_NAME} not found, nothing to clean up"
232+
exit 0
233+
fi
234+
235+
echo "Found ClusterRoleBinding ${CRB_NAME}, verifying it was created by Helm..."
236+
237+
# Check if the ClusterRoleBinding has Helm labels indicating it was created by this chart
238+
MANAGED_BY=$(kubectl get clusterrolebinding "${CRB_NAME}" -o jsonpath='{.metadata.labels.app\.kubernetes\.io/managed-by}' 2>/dev/null || echo "")
239+
INSTANCE=$(kubectl get clusterrolebinding "${CRB_NAME}" -o jsonpath='{.metadata.labels.app\.kubernetes\.io/instance}' 2>/dev/null || echo "")
240+
APP_NAME=$(kubectl get clusterrolebinding "${CRB_NAME}" -o jsonpath='{.metadata.labels.app\.kubernetes\.io/name}' 2>/dev/null || echo "")
241+
242+
if [ "${MANAGED_BY}" = "Helm" ] && [ "${INSTANCE}" = "${RELEASE_NAME}" ] && [ "${APP_NAME}" = "headlamp" ]; then
243+
echo "Confirmed: ${CRB_NAME} was created by this Helm release (${RELEASE_NAME})"
244+
echo "Deleting old ClusterRoleBinding..."
245+
kubectl delete clusterrolebinding "${CRB_NAME}"
246+
echo "Successfully deleted old ClusterRoleBinding"
247+
else
248+
echo "WARNING: ${CRB_NAME} exists but was NOT created by this Helm release"
249+
echo " managed-by: ${MANAGED_BY} (expected: Helm)"
250+
echo " instance: ${INSTANCE} (expected: ${RELEASE_NAME})"
251+
echo " app: ${APP_NAME} (expected: headlamp)"
252+
echo "Skipping deletion to preserve user-created resource"
253+
fi
254+
resources:
255+
requests:
256+
cpu: 10m
257+
memory: 64Mi
258+
limits:
259+
cpu: 100m
260+
memory: 128Mi
261+
262+
securityContext:
263+
allowPrivilegeEscalation: false
264+
runAsNonRoot: true
265+
capabilities:
266+
drop:
267+
- ALL
268+
seccompProfile:
269+
type: RuntimeDefault
270+
volumeMounts:
271+
- name: tmp
272+
mountPath: /tmp
273+
volumes:
274+
- name: tmp
275+
emptyDir: {}

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