CORD-2965 configmap support
Change-Id: I4c6bfe970dc7b466ac3d370e0e056bf0e67dfa1c
diff --git a/xos/synchronizer/steps/sync_configmap.py b/xos/synchronizer/steps/sync_configmap.py
new file mode 100644
index 0000000..e69a392
--- /dev/null
+++ b/xos/synchronizer/steps/sync_configmap.py
@@ -0,0 +1,82 @@
+
+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+ sync_configmap.py
+
+ Synchronize Config Maps.
+"""
+
+import json
+from synchronizers.new_base.syncstep import SyncStep
+from synchronizers.new_base.modelaccessor import KubernetesConfigMap
+
+from xosconfig import Config
+from multistructlog import create_logger
+
+from kubernetes.client.rest import ApiException
+from kubernetes import client as kubernetes_client, config as kubernetes_config
+
+log = create_logger(Config().get('logging'))
+
+class SyncKubernetesConfigMap(SyncStep):
+
+ """
+ SyncKubernetesConfigMap
+
+ Implements sync step for syncing ConfigMaps.
+ """
+
+ provides = [KubernetesConfigMap]
+ observes = KubernetesConfigMap
+ requested_interval = 0
+
+ def __init__(self, *args, **kwargs):
+ super(SyncKubernetesConfigMap, self).__init__(*args, **kwargs)
+ kubernetes_config.load_incluster_config()
+ self.v1 = kubernetes_client.CoreV1Api()
+
+ def get_config_map(self, o):
+ """ Given an XOS KubernetesConfigMap object, read the corresponding ConfigMap from Kubernetes.
+ return None if no ConfigMap exists.
+ """
+ try:
+ config_map = self.v1.read_namespaced_config_map(o.name, o.trust_domain.name)
+ except ApiException, e:
+ if e.status == 404:
+ return None
+ raise
+ return config_map
+
+ def sync_record(self, o):
+ config_map = self.get_config_map(o)
+ if not config_map:
+ config_map = kubernetes_client.V1ConfigMap()
+ config_map.data = json.loads(o.data)
+ config_map.metadata = kubernetes_client.V1ObjectMeta(name=o.name)
+
+ config_map = self.v1.create_namespaced_config_map(o.trust_domain.name, config_map)
+ else:
+ config_map.data = json.loads(o.data)
+ self.v1.patch_namespaced_config_map(o.name, o.trust_domain.name, config_map)
+
+ if (not o.backend_handle):
+ o.backend_handle = config_map.metadata.self_link
+ o.save(update_fields=["backend_handle"])
+
+ def delete_record(self, port):
+ # TODO(smbaker): Implement delete step
+ pass
+