Installer: pihole + root-ca-server + fix bitwarden cert issuer name
diff --git a/charts/pihole/templates/oauth2-proxy.yaml b/charts/pihole/templates/oauth2-proxy.yaml
new file mode 100644
index 0000000..8f4541b
--- /dev/null
+++ b/charts/pihole/templates/oauth2-proxy.yaml
@@ -0,0 +1,88 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: pihole-oauth2-proxy
+  namespace: {{ .Release.Namespace }}
+spec:
+  type: ClusterIP
+  selector:
+    app: pihole-oauth2-proxy
+  ports:
+  - name: http
+    port: 80
+    targetPort: http
+    protocol: TCP
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: ingress
+  namespace: {{ .Release.Namespace }}
+  annotations:
+    cert-manager.io/cluster-issuer: "{{ .Values.certificateIssuer }}"
+    acme.cert-manager.io/http01-edit-in-place: "true"
+spec:
+  ingressClassName: {{ .Values.ingressClassName }}
+  tls:
+  - hosts:
+    - pihole.{{ .Values.domain }}
+    secretName: cert-pihole.{{ .Values.domain }}
+  rules:
+  - host: pihole.{{ .Values.domain }}
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: pihole-oauth2-proxy
+            port:
+              name: http
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: pihole-oauth2-proxy
+  namespace: {{ .Release.Namespace }}
+spec:
+  selector:
+    matchLabels:
+      app: pihole-oauth2-proxy
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: pihole-oauth2-proxy
+    spec:
+      volumes:
+      - name: config
+        configMap:
+          name: {{ .Values.oauth2.configName }}
+      containers:
+      - name: pihole-oauth2-proxy
+        image: quay.io/oauth2-proxy/oauth2-proxy:v7.2.0-arm64
+        imagePullPolicy: Always
+        ports:
+        - name: http
+          containerPort: 8080
+          protocol: TCP
+        command:
+        - oauth2-proxy
+        - --config=/etc/oauth2-proxy/oauth2-proxy.cfg
+        volumeMounts:
+        - name: config
+          mountPath: /etc/oauth2-proxy
+          readOnly: true
+        resources:
+          requests:
+            memory: "10Mi"
+            cpu: "10m"
+          limits:
+            memory: "20Mi"
+            cpu: "100m"
+      tolerations:
+      - key: "pcloud"
+        operator: "Equal"
+        value: "role"
+        effect: "NoSchedule"