Added sessionAffinity to values.yaml (#5448)

helm/templates/service.yaml

@@ -10,7 +10,7 @@ metadata:
     {{- toYaml .Values.coder.service.annotations | nindent 4 }}
 spec:
   type: {{ .Values.coder.service.type }}
-  sessionAffinity: ClientIP
+  sessionAffinity: {{ .Values.coder.service.sessionAffinity }}
   ports:
     - name: "http"
       port: 80

helm/values.yaml

@@ -121,6 +121,11 @@ coder:
     # coder.service.type -- The type of service to expose. See:
     # https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services-service-types
     type: LoadBalancer
+    # coder.service.sessionAffinity -- Must be set to ClientIP or None
+    # AWS ELB does not support session stickiness based on ClientIP, so you must set this to None.
+    # The error message you might see: "Unsupported load balancer affinity: ClientIP"
+    # https://kubernetes.io/docs/reference/networking/virtual-ips/#session-affinity
+    sessionAffinity: ClientIP
     # coder.service.externalTrafficPolicy -- The external traffic policy to use.
     # You may need to change this to "Local" to preserve the source IP address
     # in some situations.