Adding headless service

Change-Id: Ie4ccbe0633d66468b722af872376e19141514580

doc/source/dsl.rst

@@ -14,6 +14,7 @@ Application definition template
         kind: DaemonSet
         ports:
             - internal-port:external-port
+        headless: true
         hostNetwork: true
         hostPID: true
         antiAffinity: local
@@ -120,6 +121,11 @@ service
      - false
      - boolean
      - false
+   * - headless
+     - Create headless service.
+     - false
+     - boolean
+     - false
    * - hostPID
      - Use the host’s pid namespace.
      - false

fuel_ccp/__init__.py

@@ -17,4 +17,4 @@ import pbr.version
 
 version_info = pbr.version.VersionInfo("fuel_ccp")
 __version__ = version_info.version_string()
-dsl_version = "0.7.0"
+dsl_version = "0.8.0"

fuel_ccp/deploy.py

@@ -248,7 +248,8 @@ def _process_ports(service):
                     service["name"], ingress_host, source_port))
     service_template = templates.serialize_service(
         service["name"], ports,
-        headless=service.get("kind") == "StatefulSet",
+        headless=service.get("kind") == "StatefulSet" or service.get(
+            "headless", False),
         annotations=service.get('annotations', {}).get('service'))
     yield service_template
 

fuel_ccp/validation/service.py

@@ -257,6 +257,9 @@ SERVICE_SCHEMA = {
                 "kind": {
                     "enum": ["Deployment", "DaemonSet", "StatefulSet"]
                 },
+                "headless": {
+                    "type": "boolean"
+                },
                 "hostNetwork": {
                     "type": "boolean"
                 },