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Merge pull request #1395 from EmilienMottet/add-auth-provider-cassandra

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add authprovider for cassandra export
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Nicolas Hennion 2019-01-20 10:06:40 +01:00 committed by GitHub
commit 067e1981c2
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2 changed files with 16 additions and 3 deletions
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3
conf/glances.conf
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@ -365,6 +365,9 @@ keyspace=glances
replication_factor=2 replication_factor=2
# If not define, table name is set to host key # If not define, table name is set to host key
table=localhost table=localhost
# If not define, username and password will not be used
#username=cassandra
#password=password
[opentsdb] [opentsdb]
# Configuration for the --export opentsdb option # Configuration for the --export opentsdb option

16
glances/exports/glances_cassandra.py
View File

@ -27,6 +27,7 @@ from glances.logger import logger
from glances.exports.glances_export import GlancesExport from glances.exports.glances_export import GlancesExport
from glances.compat import iteritems from glances.compat import iteritems
from cassandra.auth import PlainTextAuthProvider
from cassandra.cluster import Cluster from cassandra.cluster import Cluster
from cassandra.util import uuid_from_time from cassandra.util import uuid_from_time
from cassandra import InvalidRequest from cassandra import InvalidRequest
@ -47,13 +48,17 @@ class Export(GlancesExport):
self.protocol_version = 3 self.protocol_version = 3
self.replication_factor = 2 self.replication_factor = 2
self.table = None self.table = None
self.username = None
self.password = None
# Load the Cassandra configuration file section # Load the Cassandra configuration file section
self.export_enable = self.load_conf('cassandra', self.export_enable = self.load_conf('cassandra',
mandatories=['host', 'port', 'keyspace'], mandatories=['host', 'port', 'keyspace'],
options=['protocol_version', options=['protocol_version',
'replication_factor', 'replication_factor',
'table']) 'table',
'username',
'password'])
if not self.export_enable: if not self.export_enable:
sys.exit(2) sys.exit(2)
@ -61,15 +66,20 @@ class Export(GlancesExport):
self.cluster, self.session = self.init() self.cluster, self.session = self.init()
def init(self): def init(self):
"""Init the connection to the InfluxDB server.""" """Init the connection to the Cassandra server."""
if not self.export_enable: if not self.export_enable:
return None return None
# if username and/or password are not set the connection will try to connect with no auth
auth_provider = PlainTextAuthProvider(
username=self.username, password=self.password)
# Cluster # Cluster
try: try:
cluster = Cluster([self.host], cluster = Cluster([self.host],
port=int(self.port), port=int(self.port),
protocol_version=int(self.protocol_version)) protocol_version=int(self.protocol_version),
auth_provider=auth_provider)
session = cluster.connect() session = cluster.connect()
except Exception as e: except Exception as e:
logger.critical("Cannot connect to Cassandra cluster '%s:%s' (%s)" % (self.host, self.port, e)) logger.critical("Cannot connect to Cassandra cluster '%s:%s' (%s)" % (self.host, self.port, e))