Add docker and relationships plugin

Change-Id: I323599ae2965f081f2061b6791635bbeddb09811
Issue-Id: DCAEGEN2-79
Signed-off-by: Michael Hwang <mhwang@research.att.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/docker/dockerplugin/decorators.py b/docker/dockerplugin/decorators.py
new file mode 100644
index 0000000..089231a
--- /dev/null
+++ b/docker/dockerplugin/decorators.py
@@ -0,0 +1,80 @@
+# ============LICENSE_START=======================================================
+# org.onap.dcae
+# ================================================================================
+# Copyright (c) 2017 AT&T Intellectual Property. All rights reserved.
+# ================================================================================
+# 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.
+# ============LICENSE_END=========================================================
+#
+# ECOMP is a trademark and service mark of AT&T Intellectual Property.
+
+import copy
+from cloudify import ctx
+from cloudify.exceptions import NonRecoverableError, RecoverableError
+from dockering import utils as doc
+from dockerplugin import discovery as dis
+from dockerplugin.exceptions import DockerPluginDeploymentError, \
+    DockerPluginDependencyNotReadyError
+
+
+def monkeypatch_loggers(task_func):
+    """Sets up the dependent loggers"""
+
+    def wrapper(**kwargs):
+        # Ouch! Monkeypatch loggers
+        doc.logger = ctx.logger
+        dis.logger = ctx.logger
+
+        return task_func(**kwargs)
+
+    return wrapper
+
+
+def wrap_error_handling_start(task_start_func):
+    """Wrap error handling for the start operations"""
+
+    def wrapper(**kwargs):
+        try:
+            return task_start_func(**kwargs)
+        except DockerPluginDependencyNotReadyError as e:
+            # You are here because things we need like a working docker host is not
+            # available yet so let Cloudify try again later.
+            raise RecoverableError(e)
+        except DockerPluginDeploymentError as e:
+            # Container failed to come up in the allotted time. This is deemed
+            # non-recoverable.
+            raise NonRecoverableError(e)
+        except Exception as e:
+            ctx.logger.error("Unexpected error while starting container: {0}"
+                    .format(str(e)))
+            raise NonRecoverableError(e)
+
+    return wrapper
+
+
+def merge_inputs_for_start(task_start_func):
+    """Merge all inputs for start operation into one dict"""
+
+    def wrapper (**kwargs):
+        start_inputs = copy.deepcopy(ctx.instance.runtime_properties)
+        start_inputs.update(kwargs)
+
+        # Apparently kwargs contains "ctx" which is cloudify.context.CloudifyContext
+        # This has to be removed and not copied into runtime_properties else you get
+        # JSON serialization errors.
+        if "ctx" in start_inputs:
+            del start_inputs["ctx"]
+
+        return task_start_func(**start_inputs)
+
+    return wrapper