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import os
import uuid
from charmhelpers.core.hookenv import (
relation_ids,
relation_get,
related_units,
config
)
from charmhelpers.contrib.openstack.context import (
OSContextGenerator,
context_complete
)
CEILOMETER_DB = 'ceilometer'
class LoggingConfigContext(OSContextGenerator):
def __call__(self):
return {'debug': config('debug'), 'verbose': config('verbose')}
class MongoDBContext(OSContextGenerator):
interfaces = ['mongodb']
def __call__(self):
for relid in relation_ids('shared-db'):
for unit in related_units(relid):
conf = {
"db_host": relation_get('hostname', unit, relid),
"db_port": relation_get('port', unit, relid),
"db_name": CEILOMETER_DB
}
if context_complete(conf):
return conf
return {}
SHARED_SECRET = "/etc/ceilometer/secret.txt"
def get_shared_secret():
secret = None
if not os.path.exists(SHARED_SECRET):
secret = str(uuid.uuid4())
with open(SHARED_SECRET, 'w') as secret_file:
secret_file.write(secret)
else:
with open(SHARED_SECRET, 'r') as secret_file:
secret = secret_file.read().strip()
return secret
CEILOMETER_PORT = 8777
class CeilometerContext(OSContextGenerator):
def __call__(self):
ctxt = {
'port': CEILOMETER_PORT,
'metering_secret': get_shared_secret()
}
return ctxt
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