Merge pull request #200 from shtripat/sds-detection-fix

Corrected sds detection plugin logic

Author: r0h4n

tendrl/node_agent/discovery/sds/plugins/discover_ceph_sds_details.py

@@ -1,5 +1,6 @@
 import json
 import logging
+import os.path
 import subprocess
 
 from tendrl.node_agent.discovery.sds.discover_sds_plugin \
@@ -39,6 +40,9 @@ def discover_storage_system(self):
             #TODO(shtripat) handle the case of ubuntu
 
             if cfg_file != "":
+                if not os.path.exists(cfg_file):
+                    LOG.info("config file: %s not found" % cfg_file)
+                    return ret_val
                 with open(cfg_file) as f:
                     for line in f:
                         if line.startswith("CLUSTER="):

tendrl/node_agent/manager/__init__.py

@@ -66,11 +66,15 @@ def load_and_execute_sds_discovery_plugins(self):
         for plugin in sds_discovery_manager.get_available_plugins():
             sds_details = plugin.discover_storage_system()
             if sds_details:
-                tendrl_ns.node_agent.objects.DetectedCluster(
-                    detected_cluster_id=sds_details['detected_cluster_id'],
-                    sds_pkg_name=sds_details['pkg_name'],
-                    sds_pkg_version=sds_details['pkg_version'],
-                ).save()
+                try:
+                    tendrl_ns.node_agent.objects.DetectedCluster(
+                        detected_cluster_id=sds_details.get('detected_cluster_id'),
+                        sds_pkg_name=sds_details.get('pkg_name'),
+                        sds_pkg_version=sds_details.get('pkg_version'),
+                    ).save()
+                except etcd.EtcdException as ex:
+                    LOG.error('Failed to update etcd . Error %s' % str(ex))
+                break
 
 
 def main():