【python】openstack管理小工具（增刪查改，批量ping）

工具介紹：

建立虛擬機會使用多線程隊列的方式去控制同時建立的虛擬機數量 若是在建立的虛擬機比較多，會2次建立。第一次會在各個宿主機上建立一臺，其他的會再第一次建立成功後建立。 由於第一次建立須要傳輸鏡像會比較慢，在宿主機上已經有對應的鏡像後，再次建立相同鏡像的虛擬機，再也不須要傳輸相應的鏡像（全部相同鏡像的虛擬機共用同一個後端鏡像，openstack對鏡像管理使用copy on write技術） 查詢和更改主要都是經過查詢數據庫實現。 其它功能自測。

使用幫助：

python openstack_manager.py --help

建立虛擬機：

python openstack_manager.py -c -f vmhost -t nslm

-c, 指定是要進行建立虛擬機 ， -f  指定要建立的虛擬機列表文件 ， -t 指定要給那個項目建立虛擬機

刪除虛擬機：

python openstack_manager.py -d ip1 ip2

-d  指定要刪除的ip ，能夠跟多個

查看某個虛擬機信息

python openstack_manager.py -i ip1 ip2

-i 指定ip，後面能夠跟上多個值

查看宿主機下的虛擬機信息

python openstack_manager.py -n node1 node2

-n 指定node，能夠跟上多個值

更改虛擬機配置：

python openstack_manager.py -u ip -F flavor

-u指定某個ip， -F 指定某個配置

批量ping：

python openstack_manager.py -p -f vmhost

-p指定進行批量ping，-f指定文件

從文件中獲取建立虛擬機的命令

（建立過程當中某個虛擬機出錯，能夠進行查看建立虛擬機命令進行手動建立)

python openstack_manager.py -g -f vmhost -t

-g指定要進行獲取命令，-f指定文件，-t指定項目

-f 指定文件的文件格式：

批量ping是檢查ip虛擬機是否存在，指定的文件也是參照此格式

nodename instance_ip　flavor

一行一個虛擬機

其它使用信息：

腳本中的flavor對應的flavor id，項目賬號密碼和鏡像ID，數據庫賬號等替換成本身生產環境中的信息

#!/usr/bin/python
#coding:utf8
#Auth by lust
import sys,commands,os,MySQLdb
import Queue, threading,time
from fabric.colors import *
from optparse import OptionParser
class vmListAnaly():
    def __init__(self,vmlist_file):
        self.f_handle = open(vmlist_file)
        self.vmlist = {}
        while True:
            self.file_tmp = self.f_handle.readline()
            if self.file_tmp:
                if self.vmlist.has_key(self.file_tmp.split()[0]):      
                    self.vmlist[self.file_tmp.split()[0]].append((self.file_tmp.split()[1],self.file_tmp.split()[2]))
                else:
                    self.vmlist[self.file_tmp.split()[0]] = []
                    self.vmlist[self.file_tmp.split()[0]].append((self.file_tmp.split()[1],self.file_tmp.split()[2]))
            else:
                break
    def getAllIps(self):
        ips = []
        for __host in self.vmlist:
            for i in self.vmlist[__host]:
                ips.append(i[0])
        return ips
    def getFirstIps(self):
        ips = []
        for __host in self.vmlist:
            ips.append(self.vmlist[__host][0][0])
        return ips
    def getSecondIps(self):
        ips = []
        for __host in self.vmlist:
            del self.vmlist[__host][0]
        for __host in self.vmlist:
            for i in self.vmlist[__host]:
                ips.append(i[0])
        return ips
    def getAllCreInfo(self):
        return self.vmlist
    def getFirstCreInfo(self):
        results = []
        for __host in self.vmlist:
            self.vmlist[__host] = [self.vmlist[__host][0]]
        return self.vmlist
    def getSecondCreInfo(self):
        for __host in self.vmlist:
            del self.vmlist[__host][0]
        return self.vmlist
    def __del__(self):
        self.f_handle.close()
class getCmd():
    def __init__(self,project,vminfo,flavor,mysql_host,mysql_user,mysql_passwd):
        self.mysql_user = mysql_user
        self.mysql_host = mysql_host
        self.mysql_passwd = mysql_passwd
        self.project = project
        self.vminfo = vminfo
        self.flavor = flavor
        self.create_cmd = []
    def get_cmd(self):
        quantum_obj = mysqlEng(host=self.mysql_host,user=self.mysql_user,passwd=self.mysql_passwd)
        for __host in self.vminfo:
            if self.vminfo[__host]:
                for i in self.vminfo[__host]:
                    __ip = i[0]
                    __flavor = i[1]
                    __network_id = quantum_obj.getNetworkID(__ip)
                    __tmp = "nova --os-username %s --os-password %s --os-tenant-name %s boot --security-groups %s --flavor %s --p_w_picpath %s --nic net-id=%s,v4-fixed-ip=%s --meta lan=%s --availability-zone nova:%s %s" % (self.project['OS_USERNAME'],self.project['OS_PASSWORD'],self.project['OS_TENANT_NAME'],self.project['SECURITY_GROUPS'],flavor[__flavor],self.project['IMAGE_ID'],__network_id,__ip,__ip,__host,__ip)
                    self.create_cmd.append(__tmp)
        return self.create_cmd
class mysqlEng():
    def __init__(self,host='127.0.0.1',user='root',passwd='',port='3306'):
        self.conn = MySQLdb.connect(host=host,user=user,passwd=passwd,port=3306)
        self.cur = self.conn.cursor()
    def getNetworkID(self,ip):
        self.conn.select_db('quantum')
        net = "%s.%s.%s.0/24"%(ip.split('.')[0],ip.split('.')[1],ip.split('.')[2])
        __sql = "select network_id from subnets where name='%s'" % net
        self.cur.execute(__sql)
        ret = self.cur.fetchall()
        return ret[0][0]
    def getVmstate(self,ip):
        self.conn.select_db('nova')
        __sql = "select instances.uuid,instance_metadata.value,instances.host,instances.vm_state from instance_metadata,instances where instances.uuid = instance_metadata.instance_uuid and instance_metadata.value = %s and instances.vm_state not in ('error','deleted');"
        self.cur.execute(__sql,ip)
        ret = self.cur.fetchall()
        return ret[0][3]
    def getActNum(self,ips):
        self.conn.select_db('nova')
        __sql = "select count(*) from instance_metadata,instances where instances.uuid = instance_metadata.instance_uuid and instance_metadata.value in ('%s') and instances.vm_state = 'active';" % "','".join(ips)
        self.cur.execute(__sql)
        ret = self.cur.fetchall()
        return ret[0][0]
    def updateInstanceFlavor(self,ip,flavor):
        self.conn.select_db('nova')
        __get_flavor_info_sql="select id,memory_mb,vcpus from instance_types where flavorid = '%s' and deleted = 0;" % flavor
        self.cur.execute(__get_flavor_info_sql)
        __flavor_info = self.cur.fetchall()
        __flavor_id = __flavor_info[0][0]
        __mem = __flavor_info[0][1]
        __vcpus = __flavor_info[0][2]
        __update_flavor_info_sql="update instances set instance_type_id='%d',vcpus='%d',memory_mb='%d' where hostname='%s' AND vm_state != 'deleted' AND vm_state != 'error';" % (__flavor_id,__vcpus,__mem,ip)
        self.cur.execute(__update_flavor_info_sql)
        self.conn.commit()
    def getInstanceFlavor(self,ip):
        self.conn.select_db('nova')
        __get_instance_flavor_sql = "select vcpus,memory_mb from instances where hostname='%s' AND vm_state != 'deleted' AND vm_state != 'error';" % ip
        self.cur.execute(__get_instance_flavor_sql)
        ret = self.cur.fetchall()
        results = (ip,ret[0][0],ret[0][1])
        return results
    def getInstanceInfo(self,ips):
        self.conn.select_db('nova')
        __get_instance_info_sql = "select instances.uuid,instance_metadata.value,instances.host,instances.vm_state,memory_mb from instance_metadata,instances where instances.uuid = instance_metadata.instance_uuid and instance_metadata.value in ('%s') and instances.vm_state !='error' and instances.vm_state != 'deleted';" % "','".join(ips)
        self.cur.execute(__get_instance_info_sql)
        ret = self.cur.fetchall()
        return ret
    def getNodeInfo(self,nodes):
        self.conn.select_db('nova')
        __get_node_info_sql = "select instances.uuid,instance_metadata.value,instances.host,instances.vm_state,memory_mb from instance_metadata,instances where instances.uuid = instance_metadata.instance_uuid and instances.host in ('%s') and instances.vm_state !='error' and instances.vm_state != 'deleted';" % "','".join(nodes)
        self.cur.execute(__get_node_info_sql)
        ret = self.cur.fetchall()
        return ret
    def __del__(self):
        self.cur.close()
        self.conn.close()
class checkIps():
    def __init__(self):
        self.ping_queue = Queue.Queue()
        self.up_ip = []
        self.down_ip =[]
    def __check(self,q):
        while q.qsize():
            __ip = q.get()
            __cmd = "ping -c 2 %s" % __ip
            if commands.getstatusoutput(__cmd)[0] == 0:
                self.up_ip.append(__ip)
            else:
                self.down_ip.append(__ip)
            q.task_done()
    def put2q(self,ips):
        for __ip in ips:
            self.ping_queue.put(__ip)
    def checking(self):
        print yellow('Checking ips ...')
        for i in xrange(100):
            __pingd = threading.Thread(target=self.__check,args=(self.ping_queue,))
            __pingd.setDaemon
            __pingd.start()
        self.ping_queue.join()
        return {'up':self.up_ip,'down':self.down_ip}
class createVm():
    def __init__(self,mysql_host,mysql_user,mysql_passwd):
        self.create_queue = Queue.Queue()
        self.mysql_user =  mysql_user
        self.mysql_host = mysql_host
        self.mysql_passwd = mysql_passwd
    def __put2q(self,cmd_list,q):
        while len(cmd_list) > 0:
            while q.qsize() <= 3:
                q.put(cmd_list.pop())
                time.sleep(1)
                if not cmd_list: break
        time.sleep(1)
    def __create(self,q):
        time.sleep(5)
        while q.qsize() > 0:
            __cmd = q.get()
            __ip = __cmd.split()[-1]
            print "Building %s"% __ip
            ret = commands.getstatusoutput(__cmd)
            if ret[0] == 0:
                time.sleep(2)  
                __vm_state = 'building'
                while __vm_state != 'active':
                    time.sleep(5)
                    __vm_state = mysqlEng(host=self.mysql_host,user=self.mysql_user,passwd=self.mysql_passwd).getVmstate(__ip)
                    if __vm_state == 'error':
                        self.error_vms+=1
                        print red("虛擬機建立出錯,IP:%s") % __ip
                        break
                self.ok_vms+=1
                print green("%s 建立成功,這次建立虛擬機總數:%s , 成功的虛擬機:%s ,出錯的虛擬機:%s") % (__ip,self.all_vms,self.ok_vms,self.error_vms)
            else:
                self.error_vms+=1
                print red("執行命令出錯,IP:%s,出錯信息: %s \n")%(__ip,ret[1])
    def creating(self,cmds,ths):
        self.all_vms = len(cmds)
        self.ok_vms = 0
        self.error_vms = 0
        __put_thread = threading.Thread(target=self.__put2q, args=(cmds,self.create_queue,))
        __put_thread.setDaemon
        __put_thread.start()
        for i in xrange(ths):
            __created = threading.Thread(target=self.__create, args=(self.create_queue,))
            __created.setDaemon
            __created.start()
            time.sleep(10)
class createAllvm():
    def __init__(self,vmlist,flavor,mysql_host,mysql_user,mysql_passwd):
        self.vmlist = vmlist
        self.mysql_host = mysql_host
        self.mysql_user = mysql_user
        self.mysql_passwd = mysql_passwd
        self.flavor = flavor
    def start(self):
        create_obj = createVm(mysql_host=self.mysql_host,mysql_user=self.mysql_user,mysql_passwd=self.mysql_passwd)
                                                                                                                                                                                                                                                                                        
        first_create_cmd = getCmd(project_info,vmListAnaly(self.vmlist).getFirstCreInfo(),self.flavor,mysql_host=self.mysql_host,mysql_user=self.mysql_user,mysql_passwd=self.mysql_passwd).get_cmd()
        create_obj.creating(first_create_cmd,2)
        first_ips = vmListAnaly('vmhost').getFirstIps()
        while True:
            time.sleep(10)
            if mysqlEng(host=self.mysql_host,user=self.mysql_user,passwd=self.mysql_passwd).getActNum(first_ips) == len(first_ips): break
        print '第一波建立完畢'
        second_create_cmd = getCmd(project_info,vmListAnaly(self.vmlist).getSecondCreInfo(),self.flavor,mysql_host=self.mysql_host,mysql_user=self.mysql_user,mysql_passwd=self.mysql_passwd).get_cmd()
        if not second_create_cmd:
            print green('只有一波了..建立完畢')
            sys.exit()
        create_obj.creating(second_create_cmd,3)
        second_ips = vmListAnaly('vmhost').getSecondIps()
        while True:
            time.sleep(10)
            if mysqlEng(host=self.mysql_host,user=self.mysql_user,passwd=self.mysql_passwd).getActNum(second_ips) == len(second_ips): break
        print '第二波建立完畢'
if __name__ == '__main__':
    #project_name = sys.argv[1]
    #vmlist = sys.argv[2]
    mysql_host = '127.0.0.1'
    mysql_user = 'root'
    mysql_passwd = '123456'
    parser = OptionParser()
    parser.add_option("-c","--create",dest="create",action="store_true",default=False,help="create vm in filename")
    parser.add_option("-u","--update",dest="update",help="update ip to a flavor")
    parser.add_option("-p","--ping",dest="ping",action="store_true",default=False,help="multil threading to ping")
    parser.add_option("-i","--instances",dest="instances",help="query a ip's info")
    parser.add_option("-n","--nodes",dest="nodes",help="query a host's info")
    parser.add_option("-g","--getcmd",dest="getcmd",action="store_true",default=False,help="get build vm commands from a file")
    parser.add_option("-d","--delete",dest="delete",help="delete a instance")
    parser.add_option("-f","--filename",dest="filename",help="Specify a file")
    parser.add_option("-F","--flavor",dest="flavor",help="Specify a flavor")
    parser.add_option("-t","--tenant",dest="tenant",help="Specify a tenant")
    (options,args) = parser.parse_args()
    project_conf={
        'test':{
            'OS_USERNAME':'test',
            'OS_PASSWORD':'test',
            'OS_TENANT_NAME':'test',
            'SECURITY_GROUPS':'default',
            'IMAGE_ID':'25b349f2-a105-4d2d-aabe-89253e8b4eb1',
        },
        'test2':{
            'OS_USERNAME':'test2',
            'OS_PASSWORD':'test2',
            'OS_TENANT_NAME':'test2',
            'SECURITY_GROUPS':'default',
            'IMAGE_ID':'a6955dde-7794-45cc-a468-65ce7d2473c1',  
        },
    }
    flavor={
        '1':'1',
        '2':'2',
        '4':'4',
        '6':'6',
        '8':'8',
        '12':'12',
        '16':'16',
    }
    the_mysql_obj = mysqlEng(host=mysql_host,user=mysql_user,passwd=mysql_passwd)
    if options.create:
        project_info = project_conf[options.tenant]
        vmfile = options.filename
        the_create_obj = createAllvm(vmlist=vmfile,flavor=flavor,mysql_host=mysql_host,mysql_user=mysql_user,mysql_passwd=mysql_passwd)
        the_create_obj.start()
    if options.update:
        ip = options.update
        flavor = options.flavor
        the_mysql_obj.updateInstanceFlavor(ip,flavor)
        print "update ok,now the vm %s is %s cups and %sMB memory" % the_mysql_obj.getInstanceFlavor(ip)
        instance_id = the_mysql_obj.getInstanceInfo([ip])[0][0]
        print red('please command == nova reboot --hard %s == to effect' % instance_id)
    if options.ping:
        filename = options.filename
        allip = vmListAnaly(filename).getAllIps()
        check_obj = checkIps()
        check_obj.put2q(allip)
        check_ret = check_obj.checking()
        if check_ret['up']:
            for ip in check_ret['up']:
                print red("%s is up,please check...") % ip
            sys.exit(9)
        else:
            print green('All ip is check ok...,you can create these vms')
    if options.instances:
        args.append(options.instances)
        ips = args
        instances_info = the_mysql_obj.getInstanceInfo(ips)
        print "id\t\t\t\t\tip\t\tnode\t\t\tstate\tmemory"
        for i in instances_info:
            print "%s\t%s\t%s\t%s\t%s" % i
    if options.nodes:
        args.append(options.nodes)
        nodes = args
        nodes_info = the_mysql_obj.getNodeInfo(nodes)
        print "id\t\t\t\t\tip\t\tnode\t\t\tstate\tmemory"
        for i in nodes_info:
            print "%s\t%s\t%s\t%s\t%s" % i
    if options.getcmd:
        filename = options.filename
        tenant = options.tenant
        project_info = project_conf[tenant]
        result = getCmd(project_info,vmListAnaly(filename).getAllCreInfo(),flavor,mysql_host=mysql_host,mysql_user=mysql_user,mysql_passwd=mysql_passwd).get_cmd()
        for i in result:
            print i
    if options.delete:
        args.append(options.delete)
        ips = args
        instances_ids=[]
        instances_info = the_mysql_obj.getInstanceInfo(ips)
        for i in instances_info:
            instances_ids.append(i[0])
        if not instances_ids:
            print red("no instance found")
            sys.exit(8)
        delete_cmd = "nova delete " + ' '.join(instances_ids)
        result = commands.getstatusoutput(delete_cmd)
        if result[0] == 0:
            print green('OK')
        else:
            print red("error info: %s" % result[1])