add loadBalancerIP support for proxy service (#421)

Co-authored-by: Abdulhadi Celenlioglu <abdulhadi@intenseye.com>

charts/pulsar/templates/proxy-service.yaml

@@ -32,6 +32,9 @@ metadata:
   {{- end }}
 spec:
   type: {{ .Values.proxy.service.type }}
+  {{- with .Values.proxy.service.loadBalancerIP }}
+  loadBalancerIP: {{ . }}
+  {{- end }}
   ports:
     {{- if or (not .Values.tls.enabled) (not .Values.tls.proxy.enabled) }}
     - name: http

charts/pulsar/values.yaml

@@ -956,6 +956,8 @@ proxy:
   service:
     annotations: {}
     type: LoadBalancer
+    ## Optional. Leave it blank to get next available random IP.
+    loadBalancerIP: ""
   ## Proxy ingress
   ## templates/proxy-ingress.yaml
   ##