from f5.bigip import ManagementRoot
import sys
from random import randrange
from pprint import pprint
This module will read all the Virtual Servers from the bigip unit and create a dictionary e.g;
VIP-name, IP address and Traffic-Group assigned
VIPs_dict = { 'vs-client1.company.com-http':'['192.168.12.100','Traffic-group-1'],
'vs-consumer.company.com-https':'['192.168.12.200','Traffic-group-1'],
....
}
Contributor : mshoaib@paciolan.com
Environment
Python : 3.6
F5 SDK : 3.0.20
LTM : 12.1.2 HF2
Requirements :
1. Create a folder name "data" in the same directory where this script will run. It will be used to save the current config
2. Update the Variables section below according to your environment
def save_traffic_group_config(traffic_group_config):
'''
This function will save the current traffic groups config to a file
'''
This will create a file name "traffic_group_config_"
new_file = open("data/traffic_group_conifg_"+str(randrange(1000)),'w')
new_file.write("\n{}\t{}\t{}".format('Virtual','IP','Traffic Group'))
for key in traffic_group_config.keys():
new_file.write("\n{}\t{}\t{}".format(key,traffic_group_config[key][0],traffic_group_config[key][1]))
new_file.close()
print ("\nCurrent Virtual Addresses Traffic Group config have been saved ....")
------
def modify_traffic_group(virtual_server_name,virtual_address,bigip_mgmt):
'''
This function will take a name of virtual server and switch its traffic group from 1 to 2 OR 2 to 1
Assumption : You have two traffic group named a) traffic-group-1 b) traffic-group-2
'''
Load a Virtual Address
virt_address_info = bigip_mgmt.tm.ltm.virtual_address_s.virtual_address.load(name=virtual_address, partition='Common')
print ("{} traffic group is {}".format(virtual_server_name,virt_address_info.trafficGroup))
response = input("Type Y or yes to Change or to Skip ... ")
User Input to proceed
if response.lower() == 'yes' or response.lower() == 'y':
print (" Traffic Group Changed ")
else:
print (" No Change ")
return
if virt_address_info.trafficGroup == "/Common/traffic-group-1":
new_TG = "/Common/traffic-group-2"
else:
new_TG = "/Common/traffic-group-1"
Update the Traffic Group for that particular virtual server name / virtual address
virt_address_info.modify(trafficGroup=new_TG)
Variable Section
BigIP = "BigIP"
BigIP_username = "admin"
BigIP_password = "admin"
cur_virtuals_info = {} Empty dict to collect Virtual Server Name, IP address & Traffic Group
tmp_virtual_address = [] it will store the IP of Virtual Addresses and help to avoid duplicates
Connect to BigIP
f5_mgmt = ManagementRoot(BigIP, BigIP_username, BigIP_password)
Gather Virtual Address and Virtual Server info
virt_addrs = f5_mgmt.tm.ltm.virtual_address_s.get_collection()
virt_srvs = f5_mgmt.tm.ltm.virtuals.get_collection()
Fill up the Current Virtuals info
for v_s in virt_srvs:
for v_a in virt_addrs:
Compare Virtual Server IP and Virtual Address ( also an IP ) and if same then grab the traffic group and feed into the dict
if v_a.name == v_s.destination.split('/')[2].split(':')[0]: Match the IP address
if len (cur_virtuals_info) == 0:
Enter the first value in as is
cur_virtuals_info[v_s.name] = [v_s.destination.split('/')[2].split(':')[0],v_a.trafficGroup.split('/')[2]]
save the virtual address in tmp list to compare and avoid duplicates
tmp_virtual_address.append(v_s.destination.split('/')[2].split(':')[0])
continue
else:
Check if virtual address already exisit, if yes then skip
if v_s.destination.split('/')[2].split(':')[0] in tmp_virtual_address:
Virtual address already inserted, skip insertion
continue
else:
Insert the Virtual Server / Address into the dict and in the temp list for comparison
cur_virtuals_info[v_s.name] = [v_s.destination.split('/')[2].split(':')[0],v_a.trafficGroup.split('/')[2]]
tmp_virtual_address.append(v_s.destination.split('/')[2].split(':')[0])
continue
Save the current Config
save_traffic_group_config(cur_virtuals_info)
for k in cur_virtuals_info.keys():
modify_traffic_group(k,cur_virtuals_info[k][0],f5_mgmt)
Nimbostratus