[memcached] Allow to configure additional service parameters

Use the following structure in values to define addtional service
parameters:

Values: network:
    memcached:
      service:
        type: loadBalancer
        loadBalancerIP: 1.1.1.1
Change-Id: I94c87e530d90f603949ccacbf0602273feec741a

memcached/Chart.yaml

@@ -15,6 +15,6 @@ apiVersion: v1
 appVersion: v1.5.5
 description: OpenStack-Helm Memcached
 name: memcached
-version: 0.1.14
+version: 0.1.15
 home: https://github.com/memcached/memcached
 ...

memcached/templates/service.yaml

@@ -30,4 +30,5 @@ spec:
 {{- end }}
   selector:
 {{ tuple $envAll "memcached" "server" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
+{{ .Values.network.memcached | include "helm-toolkit.snippets.service_params" | indent 2 }}
 {{- end }}

memcached/values.yaml

@@ -103,6 +103,9 @@ endpoints:
         default: 53
         protocol: UDP
 
+network:
+  memcached: {}
+
 network_policy:
   memcached:
     ingress:

releasenotes/notes/memcached.yaml

@@ -15,4 +15,5 @@ memcached:
   - 0.1.12 Added OCI registry authentication
   - 0.1.13 Replace node-role.kubernetes.io/master with control-plane
   - 0.1.14 Use quay.io/airshipit/kubernetes-entrypoint:latest-ubuntu_focal by default
+  - 0.1.15 Allow to pass additional service parameters
 ...