Adding ability to export created k8s objects

--export-dir parameter was added to deploy command.
k8s objects will be created inside of this directory
with names <object_name>-<object_kind>.yaml.
Configmap objects will be created under subdirectory
"configmaps"

Objects can be created with kubectl in default namespace:
kubectl create -f <dir>/configmaps/ -f <dir>/
And removed:
kubectl delete -f <dir>/configmaps/ -f <dir>/

To create in another namespace:
kubectl create namespace <ns>
kubectl create -f <dir>/configmaps/ -f <dir>/ --namespace <ns>
kubectl delete -f <dir>/configmaps/ -f <dir>/ --namespace <ns>

Change-Id: I0d33e928526954c7a068118fe6af82a5a0ce4af6

fuel_ccp/config/cli.py

@@ -18,6 +18,8 @@ def add_parsers(subparsers):
                                action='store_true',
                                help="Print k8s objects definitions without"
                                     "actual creation")
+    deploy_action.add_argument('--export-dir',
+                               help='Directory to export created k8s objects')
 
     fetch_action = subparsers.add_parser('fetch')
     fetch_action.add_argument('-c', '--components',

fuel_ccp/deploy.py

@@ -344,6 +344,8 @@ def _create_openrc(config, namespace):
 def deploy_components(components=None):
     if components is None:
         components = CONF.repositories.names
+    if CONF.action.export_dir:
+        os.makedirs(os.path.join(CONF.action.export_dir, 'configmaps'))
 
     config = utils.get_global_parameters("configs", "nodes", "roles")
     config["topology"] = _make_topology(config.get("nodes"),

fuel_ccp/kubernetes.py

@@ -1,3 +1,4 @@
+import os
 import yaml
 
 from k8sclient.client import api_client
@@ -30,9 +31,22 @@ def get_client(kube_apiserver=None, key_file=None, cert_file=None,
 def create_object_from_definition(object_dict, namespace=None, client=None):
     LOG.info("Deploying %s: \"%s\"",
              object_dict["kind"], object_dict["metadata"]["name"])
+    if CONF.action.export_dir:
+        file_name = '%s-%s.yaml' % (
+            object_dict['metadata']['name'], object_dict['kind'].lower())
+        if object_dict['kind'] == 'ConfigMap':
+            file_path = os.path.join(
+                CONF.action.export_dir, 'configmaps', file_name)
+        else:
+            file_path = os.path.join(CONF.action.export_dir, file_name)
+        with open(file_path, 'w') as object_file:
+            object_file.write(yaml.dump(
+                object_dict, default_flow_style=False))
+
     if CONF.action.dry_run:
         LOG.info(yaml.dump(object_dict, default_flow_style=False))
         return
+
     namespace = namespace or CONF.kubernetes.namespace
     client = client or get_client()
     if object_dict['kind'] == 'Deployment':

fuel_ccp/tests/test_kubernetes.py

@@ -37,6 +37,7 @@ class TestKubernetes(base.TestCase):
         'k8sclient.client.apis.apisextensionsvbeta_api.ApisextensionsvbetaApi')
     def test_create_deployment(self, api_beta):
         CONF.action.dry_run = False
+        CONF.action.export_dir = False
         api = mock.Mock()
         api.create_namespaced_deployment = mock.Mock()
         api_beta.return_value = api
@@ -50,6 +51,7 @@ class TestKubernetes(base.TestCase):
     @mock.patch('k8sclient.client.apis.apiv_api.ApivApi')
     def test_create_service(self, api_v1):
         CONF.action.dry_run = False
+        CONF.action.export_dir = False
         api = mock.Mock()
         api.create_namespaced_service = mock.Mock()
         api_v1.return_value = api