2015-07-24 06:22:58 INFO config-changed Traceback (most recent call last):
2015-07-24 06:22:58 INFO config-changed   File "/var/lib/juju/agents/unit-etcd-0/charm/hooks/config-changed", line 157, in <module>
2015-07-24 06:22:58 INFO config-changed     hooks.execute(sys.argv)
2015-07-24 06:22:58 INFO config-changed   File "/usr/local/lib/python2.7/dist-packages/charmhelpers/core/hookenv.py", line 592, in execute
2015-07-24 06:22:58 INFO config-changed     self._hooks[hook_name]()
2015-07-24 06:22:58 INFO config-changed   File "/var/lib/juju/agents/unit-etcd-0/charm/hooks/config-changed", line 28, in config_changed
2015-07-24 06:22:58 INFO config-changed     install_etcd()
2015-07-24 06:22:58 INFO config-changed   File "/var/lib/juju/agents/unit-etcd-0/charm/hooks/config-changed", line 136, in install_etcd
2015-07-24 06:22:58 INFO config-changed     unpack = fetch.install_remote(source, 'fetched', sha)
2015-07-24 06:22:58 INFO config-changed   File "/usr/local/lib/python2.7/dist-packages/charmhelpers/fetch/__init__.py", line 376, in install_remote
2015-07-24 06:22:58 INFO config-changed     raise UnhandledSource("No handler found for source {}".format(source))
2015-07-24 06:22:58 INFO config-changed charmhelpers.fetch.UnhandledSource: No handler found for source cloud:trusty-updates/juno