Add support for gRPC endpoint

weaviate/templates/weaviateServiceGRPC.yaml

@@ -0,0 +1,32 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Values.grpcService.name }}
+  labels:
+    app.kubernetes.io/name: weaviate
+    app.kubernetes.io/managed-by: helm
+  {{- with .Values.grpcService.annotations }}
+  annotations: {{ toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  type: {{ .Values.grpcService.type }}
+  selector:
+    app: weaviate
+  ports:
+    {{- range .Values.grpcService.ports }}
+    - {{ toYaml . | indent 6 | trim }}
+      targetPort: 50051
+    {{- end }}
+{{ if eq .Values.grpcService.type "ClusterIP" -}}
+  {{ if .Values.grpcService.clusterIP }}
+  clusterIP: {{ .Values.grpcService.clusterIP }}
+  {{ end }}
+{{ end }}
+{{ if eq .Values.grpcService.type "LoadBalancer" -}}
+  {{- if gt (len .Values.grpcService.loadBalancerSourceRanges) 0 }}
+  loadBalancerSourceRanges:
+    {{- range $_, $sourceRange := .Values.grpcService.loadBalancerSourceRanges }}
+    - {{ $sourceRange }}
+    {{ end -}}
+  {{- end -}}
+{{- end }}

weaviate/templates/weaviateStatefulset.yaml

@@ -315,6 +315,9 @@ spec:
             containerPort: 2112
             protocol: TCP
           {{- end }}
+          - name: grpc
+            containerPort: 50051
+            protocol: TCP
         volumeMounts:
           - name: weaviate-config
             mountPath: /weaviate-config

weaviate/values.yaml

@@ -7,7 +7,7 @@ image:
   # of weaviate. In accordance with Infra-as-code, you should pin this value
   # down and only change it if you explicitly want to upgrade the Weaviate
   # version.
-  tag: 1.21.2
+  tag: 1.22.2
   repo: semitechnologies/weaviate
   # Image pull policy: https://kubernetes.io/docs/concepts/containers/images/#image-pull-policy
   pullPolicy: IfNotPresent
@@ -106,6 +106,22 @@ service:
   clusterIP:
   annotations: {}
 
+# The service controls how weaviate gRPC endpoint is exposed to the outside world.
+# If you don't want a public load balancer, you can also choose 'ClusterIP' to make
+# weaviate gRPC port be only accessible within your cluster.
+grpcService:
+  name: weaviate-grpc
+  ports:
+    - name: http
+      protocol: TCP
+      port: 80
+      # Target port is going to be the same for every port
+  type: LoadBalancer
+  loadBalancerSourceRanges: []
+  # optionally set cluster IP if you want to set a static IP
+  clusterIP:
+  annotations: {}
+
 # The service monitor defines prometheus monitoring for a set of services
 # https://github.com/prometheus-operator/prometheus-operator/blob/main/Documentation/api.md#monitoring.coreos.com/v1.ServiceMonitor
 serviceMonitor: