Sync helm chart affinity examples

Author: aledbf

charts/ingress-nginx/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: ingress-nginx
-version: 2.12.0
+version: 2.12.1
 appVersion: 0.34.1
 home: https://github.com/kubernetes/ingress-nginx
 description: Ingress controller for Kubernetes using NGINX as a reverse proxy and load balancer

charts/ingress-nginx/values.yaml

@@ -168,21 +168,37 @@ controller:
     #     podAffinityTerm:
     #       labelSelector:
     #         matchExpressions:
-    #         - key: app
+    #         - key: app.kubernetes.io/name
     #           operator: In
     #           values:
     #           - ingress-nginx
+    #         - key: app.kubernetes.io/instance
+    #           operator: In
+    #           values:
+    #           - ingress-nginx
+    #         - key: app.kubernetes.io/component
+    #           operator: In
+    #           values:
+    #           - controller
     #       topologyKey: kubernetes.io/hostname
 
     # # An example of required pod anti-affinity
     # podAntiAffinity:
     #   requiredDuringSchedulingIgnoredDuringExecution:
     #   - labelSelector:
     #       matchExpressions:
-    #       - key: app
+    #       - key: app.kubernetes.io/name
     #         operator: In
     #         values:
     #         - ingress-nginx
+    #       - key: app.kubernetes.io/instance
+    #         operator: In
+    #         values:
+    #         - ingress-nginx
+    #       - key: app.kubernetes.io/component
+    #         operator: In
+    #         values:
+    #         - controller
     #     topologyKey: "kubernetes.io/hostname"
 
   ## terminationGracePeriodSeconds