sys.exit(1)
except KeyError:
pass
#get device info
try:
now_device=etcd_client.read('%s%s/external_ip/device'%(docker_etcd_key,local_ip)).value
except KeyError:
now_device='em2:0'
new_device=now_device.split(':')[0]+':'+str(int(now_device.split(':')[1])+1)
key='%s%s/external_ip/device'%(docker_etcd_key,local_ip)
etcd_client.write(key,new_device)
#add new external ip in localhost
if int(external_ip_netmask) == 8:
external_ip_netmask='255.0.0.0'
elif int(external_ip_netmask) == 16:
external_ip_netmask='255.255.0.0'
elif int(external_ip_netmask) == 24:
external_ip_netmask='255.255.255.0'
elif int(external_ip_netmask) == 32:
external_ip_netmask='255.255.255.255'
else:
print 'you input netmask %s i can not calculate'%external_ip_netmask
sys.exit(1)
add_external_ip_status=((subprocess.Popen("/sbin/ifconfig %s %s netmask %s up &>>/dev/null && echo 0 || echo 1"%(new_device,external_ip,external_ip_netmask),shell=True,stdout=subprocess.PIPE)).stdout.readlines()[0]).strip('n')
if add_external_ip_status != "0":
print 'add external ip:%s is fail!'%args.addip
sys.exit(1)
else:
print 'add external ip:%s is success!'%args.addip
key='%s%s/external_ip/%s'%(docker_etcd_key,local_ip,external_ip)
info={'Ip':external_ip,'Netmask':external_ip_netmask,'Container_name':args.container_name,'Device':new_device,'Date':time.strftime('%Y.%m.%d-%T')}
etcd_client.write(key,info)
sys.exit(0)
if args.rmip:
try:
now_ip=eval(etcd_client.read('%s%s/external_ip/%s'%(docker_etcd_key,local_ip,args.rmip)).value)
except KeyError:
print 'This external ip:%s is not use in etcd!'%args.rmip
sys.exit(1)
if now_ip['Container_name'] != args.container_name:
print 'this is external ip:%s is has used by container:%s.if you want to delete it,please input correct container:%s and external ip:%s.'%(args.rmip,now_ip['Container_name'],now_ip['Container_name'],now_ip['Ip'])
sys.exit(1)
#delete use external ip in localhost
delete_external_ip_status=((subprocess.Popen("/sbin/ifconfig %s down &>>/dev/null && echo 0 || echo 1"%(now_ip['Device']),shell=True,stdout=subprocess.PIPE)).stdout.readlines()[0]).strip('n')
if delete_external_ip_status != "0":
print 'delete external ip:%s is fail!'%args.rmip
sys.exit(1)
else:
print 'delete external ip:%s is success!'%args.rmip
key='%s%s/external_ip/%s'%(docker_etcd_key,local_ip,args.rmip)
etcd_client.delete(key)
sys.exit(0)
sys.exit(1)建议根据自己实际环境来修改上面代码，我这个仅是让大家参考我的运行方式，以及可以使用这个东东来解决自己的问题，大家如果有其他的方法也可以使用。
二、运行
1、使用帮助
[root@docker-test3 code]# python modify_docker_container_firewall.py -h
