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#
# Copyright 2012 Canonical Ltd.
#
# Authors:
# James Page <james.page@canonical.com>
# Paul Collins <paul.collins@canonical.com>
#
import json
import subprocess
import time
import utils
import os
QUORUM = ['leader', 'peon']
def is_quorum():
asok = "/var/run/ceph/ceph-mon.{}.asok".format(utils.get_unit_hostname())
cmd = [
"ceph",
"--admin-daemon",
asok,
"mon_status"
]
if os.path.exists(asok):
try:
result = json.loads(subprocess.check_output(cmd))
except subprocess.CalledProcessError:
return False
except ValueError:
# Non JSON response from mon_status
return False
if result['state'] in QUORUM:
return True
else:
return False
else:
return False
def wait_for_quorum():
while not is_quorum():
time.sleep(3)
def add_bootstrap_hint(peer):
asok = "/var/run/ceph/ceph-mon.{}.asok".format(utils.get_unit_hostname())
cmd = [
"ceph",
"--admin-daemon",
asok,
"add_bootstrap_peer_hint",
peer
]
if os.path.exists(asok):
# Ignore any errors for this call
subprocess.call(cmd)
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