def get_osd_statistics(client=None,
keyring=None,
osd_ids=None,
container_name=None):
osd_dump = get_ceph_osd_dump(client=client,
keyring=keyring,
container_name=container_name)
pg_osds_dump = get_ceph_pg_dump_osds(client=client,
keyring=keyring,
container_name=container_name)
for osd_id in osd_ids:
osd_ref = 'osd.%s' % osd_id
for _osd in osd_dump['osds']:
if _osd['osd'] == osd_id:
osd = _osd
break
else:
msg = 'The OSD ID %s does not exist.' % osd_id
raise maas_common.MaaSException(msg)
key = 'up'
name = '_'.join((osd_ref, key))
maas_common.metric_bool(name, osd[key])
for _osd in pg_osds_dump:
if _osd['osd'] == osd_id:
osd = _osd
break
def get_metrics_lxc_container(container_name):
# Create lxc container object
cont = lxc.Container(container_name)
container_pid = int(cont.init_pid)
if not (container_pid > 1 and cont.running and cont.state == "RUNNING"):
raise maas_common.MaaSException('Container %s not in running state' %
cont.name)
with NsEnter(pid=container_pid, ns_type='net'):
return get_metrics()
def main():
try:
if not args.container:
metrics = get_metrics()
else:
if not lxc_module_active:
raise maas_common.MaaSException('Container monitoring '
'requested but lxc-python '
'pip module not installed.')
metrics = get_metrics_lxc_container(args.container)
except maas_common.MaaSException as e:
maas_common.status_err(str(e), m_name='maas_conntrack')
else:
maas_common.status_ok(m_name='maas_conntrack')
for name, data in metrics.viewitems():
maas_common.metric(name, 'uint32', data['value'])
def get_osd_statistics(report=None, osd_ids=None):
for osd_id in osd_ids:
osd_ref = 'osd.%s' % osd_id
for _osd in report['osdmap']['osds']:
if _osd['osd'] == osd_id:
osd = _osd
break
else:
msg = 'The OSD ID %s does not exist.' % osd_id
raise maas_common.MaaSException(msg)
for key in ('up', 'in'):
name = '_'.join((osd_ref, key))
maas_common.metric_bool(name, osd[key])
for _osd in report['pgmap']['osd_stats']:
if _osd['osd'] == osd_id:
osd = _osd
break
for key in ('kb', 'kb_used', 'kb_avail'):
name = '_'.join((osd_ref, key))
maas_common.metric(name, 'uint64', osd[key])
def get_osd_statistics(client=None, keyring=None, osd_ids=None):
osd_dump = get_ceph_osd_dump(client=client, keyring=keyring)
pg_osds_dump = get_ceph_pg_dump_osds(client=client, keyring=keyring)
for osd_id in osd_ids:
osd_ref = 'osd.%s' % osd_id
for _osd in osd_dump['osds']:
if _osd['osd'] == osd_id:
osd = _osd
break
else:
msg = 'The OSD ID %s does not exist.' % osd_id
raise maas_common.MaaSException(msg)
for key in ('up', 'in'):
name = '_'.join((osd_ref, key))
maas_common.metric_bool(name, osd[key])
for _osd in pg_osds_dump:
if _osd['osd'] == osd_id:
osd = _osd
break
for key in ('kb', 'kb_used', 'kb_avail'):
name = '_'.join((osd_ref, key))
maas_common.metric('ceph_osd', name, osd[key])
def get_metrics_lxc_container(container_name=''):
# Return 0 values if we can't determine current state
# from a container
metrics = {
'nf_conntrack_count': {
'value': 0
},
'nf_conntrack_max': {
'value': 0
}
}
# Create lxc container object
cont = lxc.Container(container_name)
if not (cont.init_pid > 1 and cont.running and cont.state == "RUNNING"):
raise maas_common.MaaSException('Container %s not in running state' %
cont.name)
# Check if container is even running
try:
with tempfile.TemporaryFile() as tmpfile:
# Retrieve root namespace count
if cont.attach_wait(lxc.attach_run_command, [
'cat', '/proc/sys/net/netfilter/nf_conntrack_count',
'/proc/sys/net/netfilter/nf_conntrack_max'
],
stdout=tmpfile,
stderr=tempfile.TemporaryFile()) > -1:
tmpfile.seek(0)
output = tmpfile.read()
metrics = {
'nf_conntrack_count': {
'value': output.split('\n')[0]
},
'nf_conntrack_max': {
'value': output.split('\n')[1]
}
}
# Retrieve conntrack count per namespace
# and report the namespace with the highest count.
# This is necessary to limit the number of metrics to report to MAAS,
# as we can not report a metric per namespace, which by nature are
# also volatile.
with tempfile.TemporaryFile() as nsfile:
if cont.attach_wait(lxc.attach_run_command,
['ls', '-1', '/var/run/netns'],
stdout=nsfile,
stderr=tempfile.TemporaryFile()) > -1:
nsfile.seek(0)
for line in nsfile.readlines():
ns = line.strip(os.linesep)
nscountfile = tempfile.TemporaryFile()
if cont.attach_wait(lxc.attach_run_command, [
'ip', 'netns', 'exec', ns, 'cat',
'/proc/sys/net/netfilter/'
'nf_conntrack_count'
],
stdout=nscountfile,
stderr=tempfile.TemporaryFile()) > -1:
nscountfile.seek(0)
nscount = int(nscountfile.read().strip(os.linesep))
if nscount > metrics['nf_conntrack_count']['value']:
metrics['nf_conntrack_count']['value'] = nscount
return metrics
except maas_common.MaaSException as e:
maas_common.status_err(str(e), m_name='maas_conntrack')