Generic Services, external ip & nodeport

Refactor the services to be more generic and sharable. Add the
external vip in case you need that, and allow node port to be
used.

Partially implements: blueprint external-ips

Change-Id: I2f98e01d069a2686dd8023fa1491475d026b97b0

etc/kolla-kubernetes/service_resources.yml

@@ -216,10 +216,20 @@ kolla-kubernetes:
       pv:
       pvc:
       svc:
-      - name: nova-service-compute
-        template: services/nova/nova-service-compute.yml.j2
-      - name: nova-service-metadata
-        template: services/nova/nova-service-metadata.yml.j2
+      - name: nova-api
+        template: services/common/generic-service.yml.j2
+        vars:
+          port_name: nova_api_port
+          service: nova
+          type: api
+          name: nova-api
+      - name: nova-metadata
+        template: services/common/generic-service.yml.j2
+        vars:
+          port_name: nova_metadata_port
+          service: nova
+          type: metadata
+          name: nova-metadata
       bootstrap:
       - name: nova-compute-bootstrap-job
         template: services/nova/nova-compute-bootstrap-job.yml.j2

services/common/generic-service.yml.j2

@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: Service
+spec:
+  ports:
+    - port: {{ global[kolla_kubernetes.template.vars.port_name] }}
+      targetPort: {{ global[kolla_kubernetes.template.vars.port_name] }}
+      name: {{ kolla_kubernetes.template.vars.name }}
+{%- if global[kolla_kubernetes.template.vars.port_name + '_nodeport'] is defined %}
+      nodePort: {{ global[kolla_kubernetes.template.vars.port_name + '_nodeport'] }}
+  type: NodePort
+{%- else %}
+  externalIPs:
+    - {{ kolla_kubernetes_external_vip }}
+{%- endif %}
+  selector:
+    service: {{ kolla_kubernetes.template.vars.service }}
+    type: {{ kolla_kubernetes.template.vars.type }}
+metadata:
+   name: {{ kolla_kubernetes.template.vars.name }}

services/nova/nova-service-compute.yml.j2

@@ -1,11 +0,0 @@
-apiVersion: v1
-kind: Service
-spec:
-  ports:
-    - port: {{ nova_api_port }}
-      name: nova-api
-  selector:
-    service: nova
-    type: api
-metadata:
-   name: nova-api

services/nova/nova-service-metadata.yml.j2

@@ -1,11 +0,0 @@
-apiVersion: v1
-kind: Service
-spec:
-  ports:
-    - port: {{ nova_metadata_port }}
-      name: nova-metadata
-  selector:
-    service: nova
-    type: api
-metadata:
-   name: nova-metadata