Re-enable Grafana Oncall

Setting redis `nodeSelector` as per [Bitnami
chart](https://github.com/bitnami/charts/blob/main/bitnami/redis/values.yaml)

app-of-apps/templates/apps.yaml

@@ -206,65 +206,69 @@ spec:
     syncOptions:
       - CreateNamespace=true
       - Replace=true
-# ---
-# apiVersion: argoproj.io/v1alpha1
-# kind: Application
-# metadata:
-#   name: grafana-oncall
-#   namespace: argo
-#   finalizers:
-#   - resources-finalizer.argocd.argoproj.io
-# spec:
-#   project: default
+---
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: grafana-oncall
+  namespace: argo
+  finalizers:
+  - resources-finalizer.argocd.argoproj.io
+spec:
+  project: default
 
-#   source:
-#     chart: oncall
-#     repoURL: https://grafana.github.io/helm-charts
-#     targetRevision: "1.3.3"
+  source:
+    chart: oncall
+    repoURL: https://grafana.github.io/helm-charts
+    targetRevision: "1.3.3"
 
-#     helm:
-#       values: |
-#         global:
-#           storage_class: longhorn
+    helm:
+      values: |
+        global:
+          storage_class: longhorn
 
-#         base_url: grafana.avril
-#         externalGrafana:
-#           url: http://grafana.avril
-#         fullnameOverride: "oncall-ovrd" # Without this, there are clashes between resources (ServiceAccounts, Secrets) that are similarly named between Oncall itself and the underlying Grafana templates. Also this needs to b e short otherwise the batch jobs created have names that are too long
+        base_url: grafana.avril
+        externalGrafana:
+          url: http://grafana.avril
+        fullnameOverride: "oncall-ovrd" # Without this, there are clashes between resources (ServiceAccounts, Secrets) that are similarly named between Oncall itself and the underlying Grafana templates. Also this needs to b e short otherwise the batch jobs created have names that are too long
 
-#         cert-manager:
-#           enabled: false
-#         grafana:
-#           enabled: false
-#         ingress:
-#           enabled: false
-#         ingress-nginx:
-#           enabled: false
+        cert-manager:
+          enabled: false
+        grafana:
+          enabled: false
+        ingress:
+          enabled: false
+        ingress-nginx:
+          enabled: false
 
-#         database:
-#           # can be either mysql or postgresql
-#           type: postgresql
-#         mariadb:
-#           enabled: false
-#         postgresql:
-#           enabled: true
+        database:
+          # can be either mysql or postgresql
+          type: postgresql
+        mariadb:
+          enabled: false
+        postgresql:
+          enabled: true
 
-#         engine:
-#           nodeSelector:
-#             kubernetes.io/arch: amd64
-#         celery:
-#           nodeSelector:
-#             kubernetes.io/arch: amd64
+        engine:
+          nodeSelector:
+            kubernetes.io/arch: amd64
+        redis:
+          master:
+            nodeSelector:
+              kubernetes.io/arch: amd64
+          replica:
+            nodeSelector:
+              kubernetes.io/arch: amd64
 
-#   destination:
-#     server: "https://kubernetes.default.svc"
-#     namespace: grafana
+  destination:
+    server: "https://kubernetes.default.svc"
+    namespace: grafana
 
-#   syncPolicy:
-#     automated:
-#       prune: true
-#     syncOptions:
-#     - CreateNamespace=true
+  syncPolicy:
+    automated:
+      prune: true
+    syncOptions:
+    - CreateNamespace=true
 ---
 #apiVersion: argoproj.io/v1alpha1
 #kind: Application