add first version of ui helm chart (#795)

* add first version of ui helm chart
* add postgres versions 12 and 9.5

charts/postgres-operator-ui/values.yaml

@@ -0,0 +1,47 @@
+# Default values for postgres-operator-ui.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+# configure ui image
+image:
+  registry: registry.opensource.zalan.do
+  repository: acid/postgres-operator-ui
+  tag: v1.2.0
+  pullPolicy: "IfNotPresent"
+
+# configure UI pod resources
+resources:
+  limits:
+    cpu: 300m
+    memory: 3000Mi
+  requests:
+    cpu: 100m
+    memory: 100Mi
+
+# configure UI ENVs
+envs:
+  # IMPORTANT: While operator chart and UI chart are idendependent, this is the interface between 
+  # UI and operator API. Insert the service name of the operator API here!
+  operatorApiUrl: "http://postgres-operator:8080"
+  targetNamespace: "default"
+
+# configure UI service
+service:
+  type: "ClusterIP"
+  port: "8080"
+
+# configure UI ingress. If needed: "enabled: true"
+ingress:
+  enabled: false
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: ui.example.org
+      paths: [""]
+  tls: []
+  #  - secretName: ui-tls
+  #    hosts:
+  #      - ui.exmaple.org