config-change hook failed with embedded webserver

[Narinder Gupta]

After install the opnfv bundle with latest ceph-radodgw charm we found out that the config-change hooked failed at

2016-03-04 19:46:57 INFO config-changed IOError: [Errno 2] No such file or directory: '/etc/apache2/sites-available/rgw'

complete logs are mentioned below.

016-03-04 19:46:57 INFO worker.uniter.jujuc server.go:172 running hook tool "juju-log" ["-l" "INFO" "Rendering from template: rgw"]
2016-03-04 19:46:57 DEBUG worker.uniter.jujuc server.go:173 hook context id "ceph-radosgw/0-config-changed-7999162656312434035"; dir "/var/lib/juju/agents/unit-ceph-radosgw-0/charm"
2016-03-04 19:46:57 INFO juju-log Rendering from template: rgw
2016-03-04 19:46:57 INFO config-changed Traceback (most recent call last):
2016-03-04 19:46:57 INFO config-changed File "/var/lib/juju/agents/unit-ceph-radosgw-0/charm/hooks/config-changed", line 435, in <module>
2016-03-04 19:46:57 INFO config-changed hooks.execute(sys.argv)
2016-03-04 19:46:57 INFO config-changed File "/var/lib/juju/agents/unit-ceph-radosgw-0/charm/hooks/charmhelpers/core/hookenv.py", line 717, in execute
2016-03-04 19:46:57 INFO config-changed self._hooks[hook_name]()
2016-03-04 19:46:57 INFO config-changed File "/var/lib/juju/agents/unit-ceph-radosgw-0/charm/hooks/charmhelpers/core/host.py", line 435, in wrapped_f
2016-03-04 19:46:57 INFO config-changed f(*args, **kwargs)
2016-03-04 19:46:57 INFO config-changed File "/var/lib/juju/agents/unit-ceph-radosgw-0/charm/hooks/config-changed", line 256, in config_changed
2016-03-04 19:46:57 INFO config-changed CONFIGS.write_all()
2016-03-04 19:46:57 INFO config-changed File "/var/lib/juju/agents/unit-ceph-radosgw-0/charm/hooks/charmhelpers/contrib/openstack/templating.py", line 278, in write_all
2016-03-04 19:46:57 INFO config-changed [self.write(k) for k in six.iterkeys(self.templates)]
2016-03-04 19:46:57 INFO config-changed File "/var/lib/juju/agents/unit-ceph-radosgw-0/charm/hooks/charmhelpers/contrib/openstack/templating.py", line 269, in write
2016-03-04 19:46:57 INFO config-changed with open(config_file, 'wb') as out:
2016-03-04 19:46:57 INFO config-changed IOError: [Errno 2] No such file or directory: '/etc/apache2/sites-available/rgw'
2016-03-04 19:46:57 INFO juju.worker.uniter.context context.go:579 handling reboot
2016-03-04 19:46:57 ERROR juju.worker.uniter.operation runhook.go:107 hook "config-changed" failed: exit status 1
2016-03-04 19:46:57 DEBUG juju.worker.uniter modes.go:31 [AGENT-STATUS] failed: clear resolved flag and run config-changed hook
2016-03-04 19:46:58 DEBUG juju.worker.uniter modes.go:31 [AGENT-STATUS] error: hook failed: "config-changed"

http://paste.ubuntu.com/15284374/