Basic updates of k8s resources

* no new commands/flags implemented - if object already exists,
it will be updated
* only Deployment, ConfigMap, Service can be updated
* if deployment spec was not updated, but related configmaps were,
deployment will be updated
* deployments will be updated with RollingUpdate strategy

Change-Id: If8fe78d6bea95b11d87f243cadc79490736745e7

fuel_ccp/templates.py

@@ -98,7 +98,11 @@ def serialize_daemon_container_spec(container):
                 "command": _get_readiness_cmd(container["name"])
             },
             "timeoutSeconds": 1
-        }
+        },
+        "env": [{
+            "name": "CM_VERSION",
+            "value": container['cm_version']
+        }]
     }
     if container.get("probes", {}).get("liveness"):
         cont_spec["livenessProbe"] = {
@@ -265,6 +269,12 @@ def serialize_deployment(name, spec, affinity):
         },
         "spec": {
             "replicas": 1,
+            "strategy": {
+                "rollingUpdate": {
+                    "maxSurge": 1,
+                    "maxUnavailable": 0
+                }
+            },
             "template": {
                 "metadata": {
                     "annotations": affinity,