Authored by root

Add emr scanner

... ... @@ -21,7 +21,13 @@ class EMRClusterScanner(object):
self.inventoryFile = '/opt/projects/yoho-ansible-roles/inventories/bigdata/hosts'
self.mailman = mailman()
self.receivers = ['tiexin.yang@yoho.cn']
self.receivers = ['tiexin.yang@yoho.cn','chunhua.zhang@yoho.cn']
self.emrNameMap = {
"emr-rt": "emr-r6bhtb5v",
"emr-ops": "emr-iaeloyc2",
"emr-dw": "emr-r6bhtb5v",
"emr-recom": "emr-ilj72ynu"
}
def EmrDescribeCluster(self,PageNo=1):
... ... @@ -50,13 +56,12 @@ class EMRClusterScanner(object):
result = client.do_query(params,"emr.api.qcloud.com/v2/index.php")
return result
def getCurrentNodes(self):
def getCurrentNodes(self,clusterId):
#获取当前所有EMR集群下的所有节点(不区分节点名称)
clusterList = self.getCurrentEmrs()
#clusterList = self.getCurrentEmrs()
emrNodeIps = []
nodesCnt = 0
PageNo = 1
for clusterId in clusterList:
while True:
print 'Getting nodes from',clusterId,'page',PageNo
result = self.EmrDescribeClusterNode(clusterId,"all",PageNo)
... ... @@ -70,7 +75,6 @@ class EMRClusterScanner(object):
continue
else:
break
PageNo = 1
return emrNodeIps
... ... @@ -94,11 +98,14 @@ class EMRClusterScanner(object):
return emrClusterList
def getHostsInFile(self,data):
def getHostsInFile(self,data,prefix):
#读取当前的Inventory信息,截取emr-recom下的所有ip数据用于和最新采集的ip列表进行匹配
rex = re.compile(r'\[emr-recom\]([\d+\.\d+\.\d+\.\d+\s*]*)',re.S)
hostsEntry = rex.findall(data)[0].strip('\n')
hostsInFile = hostsEntry.split('\n')
print 'prefix:',prefix
rexContent = re.compile(r'(\[{0}\][\d+\.\d+\.\d+\.\d+\s*]*)'.format(prefix),re.S)
rexIp = re.compile(r'(\d+\.\d+\.\d+\.\d+)')
content = rexContent.findall(data)
hostsEntry = content[0].strip('\n')
hostsInFile = rexIp.findall(hostsEntry)
return hostsEntry,hostsInFile
def gitUpdate(self):
... ... @@ -106,22 +113,24 @@ class EMRClusterScanner(object):
os.popen(cmd)
return True
def updateEMRInventory(self):
def updateEMRInventory(self, emrName):
#比对当前与最新的Inventory ip列表,相同则pass不同则更新
today = datetime.date.today().strftime('%Y%m%d')
hostsData = open(self.inventoryFile).read()
hostsEntry,hostsInFile = self.getHostsInFile(hostsData)
currentNodes = self.getCurrentNodes()
hostsEntry,hostsInFile = self.getHostsInFile(hostsData,prefix=emrName)
currentNodes = self.getCurrentNodes(clusterId=self.emrNameMap[emrName])
if set(currentNodes) == set(hostsInFile):
print 'Inventory already up to date'
return 0
else:
print '\n'.join(currentNodes)
N_toAdd = len(set(currentNodes) - set(hostsInFile))
N_toDel = len(set(hostsInFile) - set(currentNodes))
print '{0} to add,{1} to del'.format(N_toAdd,N_toDel)
print 'Taking backup for current inventory file...'
shutil.copyfile(self.inventoryFile,self.inventoryFile+'.'+today)
print 'Replacing inventory file content...'
newInventoryContent = hostsData.replace(hostsEntry,'\n'.join(list(set(currentNodes))))
newInventoryContent = hostsData.replace(hostsEntry,'[{0}]\n'.format(emrName)+'\n'.join(list(set(currentNodes))))
with open(self.inventoryFile,'w') as f:
f.write(newInventoryContent)
f.close()
... ... @@ -133,17 +142,18 @@ class EMRClusterScanner(object):
def start_daemon(self):
#以守护进程的状态运行此EMR扫描程序
while True:
try:
result = self.updateEMRInventory()
for emrName in self.emrNameMap:
#try:
result = self.updateEMRInventory(emrName)
if result:
self.mailman.mail(receivers=self.receivers,Content='EMR大数据Inventory已更新\n{0}\n详见 http://git.yoho.cn/ops/yoho-ansible-roles/blob/master/inventories/bigdata/hosts'.format(result),Title='EMR Inventory 更新结果')
self.mailman.mail(receivers=self.receivers,Content='EMR大数据Inventory [{0}] 已更新\n{1}\n详见 http://git.yoho.cn/ops/yoho-ansible-roles/blob/master/inventories/bigdata/hosts'.format(emrName,result),Title='EMR Inventory 更新结果')
else:
pass
except Exception as e:
print e
self.mailman.mail(receivers=self.receivers,Content='EMR大数据Inventory更新失败\n{0}\n5分钟后重试'.format(str(e)),Title='EMR Inventory 更新结果')
time.sleep(300)
pass
#except Exception as e:
# print e
# self.mailman.mail(receivers=self.receivers,Content='EMR大数据Inventory更新失败\n{0}\n5分钟后重试'.format(str(e)),Title='EMR Inventory 更新结果')
# time.sleep(300)
# pass
time.sleep(self.interval)
... ...