def update(filename,value):
'''
rrdtool update function
'''
cmd = "%s update %s \
N:%s" %(rrdtool,filename,value)
try:
subprocess.call(cmd, shell=True)
except:
log.error('update rrd file %s failed' %(filename))
def update(filename, value):
'''
rrdtool update function
'''
cmd = "%s update %s \
N:%s" % (rrdtool, filename, value)
try:
subprocess.call(cmd, shell=True)
except:
log.error('update rrd file %s failed' % (filename))
def graph(filename,rrd_file,rrd_ds,rrd_color):
'''
rrdtool graph function
'''
cmd = "%s graph %s \
DEF:v1=%s:%s:AVERAGE \
AREA:v1#%s" %(rrdtool,filename,rrd_file,rrd_ds,rrd_color)
try:
subprocess.call(cmd, shell=True)
except:
log.error('graph rrd file %s failed' %(filename))
def ngyaml(filename):
'''
解析yaml配置文件
'''
d = {}
try:
f = open(filename)
d = yaml.safe_load(f)
except:
log.error('can\'t open the yaml file %s' %(filename))
return d
def graph(filename, rrd_file, rrd_ds, rrd_color):
'''
rrdtool graph function
'''
cmd = "%s graph %s \
DEF:v1=%s:%s:AVERAGE \
AREA:v1#%s" % (rrdtool, filename, rrd_file, rrd_ds,
rrd_color)
try:
subprocess.call(cmd, shell=True)
except:
log.error('graph rrd file %s failed' % (filename))
def daemonize(self):
"""
do the UNIX double-fork magic, see Stevens' "Advanced
Programming in the UNIX Environment" for details (ISBN 0201563177)
http://www.erlenstar.demon.co.uk/unix/faq_2.html#SEC16
"""
try:
pid = os.fork()
if pid > 0:
# exit first parent
sys.exit(0)
except OSError, e:
log.error("fork #1 failed: %d (%s)\n" % (e.errno, e.strerror))
sys.exit(1)
def daemonize(self):
"""
do the UNIX double-fork magic, see Stevens' "Advanced
Programming in the UNIX Environment" for details (ISBN 0201563177)
http://www.erlenstar.demon.co.uk/unix/faq_2.html#SEC16
"""
try:
pid = os.fork()
if pid > 0:
# exit first parent
sys.exit(0)
except OSError, e:
log.error("fork #1 failed: %d (%s)\n" % (e.errno, e.strerror))
sys.exit(1)
def create(filename,rrd_ds,rrd_dst,interval):
'''
rrdtool create in python
'''
start = int(time.time()) - 86400
step = interval * 60
cmd = "%s create %s \
--start %s --step %s \
DS:%s:%s:600:0:U \
RRA:LAST:0.5:1:600 RRA:LAST:0.5:6:700 RRA:LAST:0.5:24:775 RRA:LAST:0.5:288:797 \
RRA:AVERAGE:0.5:1:600 RRA:AVERAGE:0.5:6:700 RRA:AVERAGE:0.5:24:775 RRA:AVERAGE:0.5:288:797\
RRA:MAX:0.5:1:600 RRA:MAX:0.5:6:700 RRA:MAX:0.5:24:775 RRA:MAX:0.5:444:797 \
RRA:MIN:0.5:1:600 RRA:MIN:0.5:6:700 RRA:MIN:0.5:24:775 RRA:MIN:0.5:444:797 " %(rrdtool,filename,start,step,rrd_ds,rrd_dst)
try:
subprocess.call(cmd, shell=True)
except:
log.error('create rrd file %s failed' %(filename))
def create(filename, rrd_ds, rrd_dst, interval):
'''
rrdtool create in python
'''
start = int(time.time()) - 86400
step = interval * 60
cmd = "%s create %s \
--start %s --step %s \
DS:%s:%s:600:0:U \
RRA:LAST:0.5:1:600 RRA:LAST:0.5:6:700 RRA:LAST:0.5:24:775 RRA:LAST:0.5:288:797 \
RRA:AVERAGE:0.5:1:600 RRA:AVERAGE:0.5:6:700 RRA:AVERAGE:0.5:24:775 RRA:AVERAGE:0.5:288:797\
RRA:MAX:0.5:1:600 RRA:MAX:0.5:6:700 RRA:MAX:0.5:24:775 RRA:MAX:0.5:444:797 \
RRA:MIN:0.5:1:600 RRA:MIN:0.5:6:700 RRA:MIN:0.5:24:775 RRA:MIN:0.5:444:797 " % (
rrdtool, filename, start, step, rrd_ds, rrd_dst)
try:
subprocess.call(cmd, shell=True)
except:
log.error('create rrd file %s failed' % (filename))
def report_mysql(data):
"""
report collect data to mysql .
need MySQL-python module
note that:
host is your mysql server ip or hostname
user is your mysql user
passwd is your mysql password
database is the database store collect data
data is a dict (note:is dict),the key is mysql table's key ,and the
value of the dict is your collect data or other thing
"""
try:
import MySQLdb
except ImportError:
log.error('MySQLdb module is not install in this server !')
sys.exit(200)
sql = 'insert into `' + table + '` ('
keys = []
values = []
try:
conn = MySQLdb.connect(nginit.MYSQL_HOST,nginit.MYSQL_USER,nginit.MYSQL_PASSWD)
conn.select_db(nginit.MYSQL_DATABASE)
cursor = conn.cursor()
except:
log.error('connect mysql server or database error !')
if isinstance(data,dict):
for (key,value) in data.items():
keys.append(key)
values.append(value)
for i in range(len(keys)):
if i < len(keys) - 1 :
sql += '`' + str(keys[i]) + '`' + ','
else:
sql += '`' + str(keys[i]) + '` ) values ('
for j in range(len(values)):
if j < len(values) - 1:
sql += '"' + str(values[j]) + '"' + ','
else:
sql += '"' + str(values[j]) + '" )'
else:
log.error(' input data not a dict')
try:
cursor.execute(sql)
conn.commit()
log.info('report ' + str(data) + ' to ' + host + ' success')
except:
log.error('insert sql '+ sql +' error')
def report_mongo(data):
"""
report collect data to mongodb
need pymongo library
"""
try:
import pymongo
except:
log.error('pymongo library is not installed in this server')
import pymongo
#connect your mongo server
conn = pymongo.MongoClient('mongodb://*****:*****@localhost:27017')
#get or create a new database
db = conn.ng_mini
#check auth
#db.authenticate(nginit.MONGO_USER,nginit.MONGO_PASSWD)
#select a collecton (a table),assume your collection name is monitor
collection = db.monitor
if isinstance(data,dict):
try:
collection.insert(data)
log.info('report ' + str(data) + 'to' + nginit.MONGO_HOST + ' success')
except:
log.error('report ' + str(data) + 'to' + nginit.MONGO_HOST + ' failed')
else:
log.error('data not a dict !')
class Daemon:
"""
A generic daemon class.
Usage: subclass the Daemon class and override the run() method
"""
def __init__(self,
pidfile,
stdin='/dev/null',
stdout='/dev/null',
stderr='/dev/null'):
self.stdin = stdin
self.stdout = stdout
self.stderr = stderr
self.pidfile = pidfile
def daemonize(self):
"""
do the UNIX double-fork magic, see Stevens' "Advanced
Programming in the UNIX Environment" for details (ISBN 0201563177)
http://www.erlenstar.demon.co.uk/unix/faq_2.html#SEC16
"""
try:
pid = os.fork()
if pid > 0:
# exit first parent
sys.exit(0)
except OSError, e:
log.error("fork #1 failed: %d (%s)\n" % (e.errno, e.strerror))
sys.exit(1)
# decouple from parent environment
os.chdir("/")
os.setsid()
os.umask(0)
# do second fork
try:
pid = os.fork()
if pid > 0:
# exit from second parent
sys.exit(0)
except OSError, e:
log.error("fork #2 failed: %d (%s)\n" % (e.errno, e.strerror))
sys.exit(1)
