add support for server side apply

Author: abikouo

dynamic/client.py

@@ -149,6 +149,20 @@ def patch(self, resource, body=None, name=None, namespace=None, **kwargs):
 
         return self.request('patch', path, body=body, content_type=content_type, **kwargs)
 
+    def server_side_apply(self, resource, body=None, name=None, namespace=None, force_conflicts=None, **kwargs):
+        body = self.serialize_body(body)
+        name = name or body.get('metadata', {}).get('name')
+        if not name:
+            raise ValueError("name is required to patch {}.{}".format(resource.group_version, resource.kind))
+        if resource.namespaced:
+            namespace = self.ensure_namespace(resource, namespace, body)
+
+        # force content type to 'application/apply-patch+yaml'
+        kwargs.update({'content_type': 'application/apply-patch+yaml'})
+        path = resource.path(name=name, namespace=namespace)
+
+        return self.request('patch', path, body=body, force_conflicts=force_conflicts, **kwargs)
+
     def watch(self, resource, namespace=None, name=None, label_selector=None, field_selector=None, resource_version=None, timeout=None, watcher=None):
         """
         Stream events for a resource from the Kubernetes API
@@ -227,6 +241,10 @@ def request(self, method, path, body=None, **params):
             query_params.append(('orphanDependents', params['orphan_dependents']))
         if params.get('dry_run') is not None:
             query_params.append(('dryRun', params['dry_run']))
+        if params.get('field_manager') is not None:
+            query_params.append(('fieldManager', params['field_manager']))
+        if params.get('force_conflicts') is not None:
+            query_params.append(('force', params['force_conflicts']))
 
         header_params = params.get('header_params', {})
         form_params = []

dynamic/test_client.py

@@ -15,6 +15,7 @@
 import time
 import unittest
 import uuid
+import json
 
 from kubernetes.e2e_test import base
 from kubernetes.client import api_client
@@ -394,6 +395,29 @@ def test_node_apis_partial_object_metadata(self):
         self.assertEqual('PartialObjectMetadataList', resp.kind)
         self.assertEqual('meta.k8s.io/v1', resp.apiVersion)
 
+    def test_server_side_apply_api(self):
+        client = DynamicClient(api_client.ApiClient(configuration=self.config))
+        api = client.resources.get(
+            api_version='v1', kind='Pod')
+
+        name = 'pod-' + short_uuid()
+        pod_manifest = {
+                'apiVersion': 'v1',
+                'kind': 'Pod',
+                'metadata': {'labels': {'name': name},
+                            'name': name},
+                'spec': {'containers': [{
+                            'image': 'nginx',
+                            'name': 'nginx',
+                            'ports': [{'containerPort': 80,
+                                            'protocol': 'TCP'}]}]}}
+
+        body = json.dumps(pod_manifest).encode()
+        resp = api.server_side_apply(
+            name=name, namespace='default', body=body,
+            field_manager='kubernetes-unittests', dry_run="All")
+        self.assertEqual('kubernetes-unittests', resp.metadata.managedFields[0].manager)
+
 
 class TestDynamicClientSerialization(unittest.TestCase):