how to save gtm's configuration with iControl

Nobody gave me a reply. I have to test by myself, then I found GlobalLB has different behavior with LocalLB in saving configuration:

 

 

http://devcentral.f5.com/Default.aspx?tabid=63&articleType=ArticleView&articleId=164 said

 

"In iControl, we opted to go the route of the command line from an API perspective - this gives you the flexibility to roll back changes that your code has made, or commit them to the hardware so that they are active on the next reboot of your BIG-IP. This means that any changes you make via iControl are applied immediately and are active on the BIG-IP that your code is managing, but if you want them to be a permanent part of the configuration you will have to make an iControl API call to save them. "

 

 

But it does not apply to GlobalLB. I did some test with pycontrol2, the code as below and found the change to topology can be updated to topology.inc imediately withouth save_configuration:

 

 

!/bin/env python

 

 

'''

 

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Software distributed under the License is distributed on an "AS IS"

 

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the License for the specific language governing rights and limitations

 

under the License.

 

 

The Original Code is iControl Code and related documentation

 

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'''

 

import sys

 

import pycontrol.pycontrol as pc

 

import time

 

 

 

Example of how to create a virtual server from pycontrol v.2. This example passes in

 

the 'fromurl' keyword as True (default is False), which tells pycontrol

 

to fetch the WSDL from the remote BigIP. This script creates an http VS

 

with oneconnect (see profile setup/sequence section).

 

 

 

if pc.__version__ == '2.0':

 

pass

 

else:

 

print "Requires pycontrol version 2.x!"

 

sys.exit()

 

 

if len(sys.argv) < 4:

 

print "Usage %s ip_address username password" % sys.argv[0]

 

sys.exit()

 

 

a = sys.argv[1:]

 

 

b = pc.BIGIP(

 

hostname = a[0],

 

username = a[1],

 

password = a[2],

 

fromurl = True,

 

wsdls = ['GlobalLB.Topology'])

 

 

 

Setup a shortcut

 

t = b.GlobalLB.Topology

 

 

create() takes four params:

 

in TopologyRecord[] records, GlobalLB.Topology.TopologyRecord

 

in long[] weights,

 

in long[] orders

 

 

 

Setup types.

 

for i in range(4, 255):

 

print i

 

 

 

top_def = t.typefactory.create('GlobalLB.Topology.TopologyRecord')

 

reg_type = t.typefactory.create('GlobalLB.RegionType')

 

server = t.typefactory.create('GlobalLB.Topology.TopologyEndpoint')

 

server.type = reg_type.REGION_TYPE_CIDR

 

server.content = "125.64.6.%u" % i

 

server.negate = False

 

 

ldns = t.typefactory.create('GlobalLB.Topology.TopologyEndpoint')

 

ldns.type = reg_type.REGION_TYPE_CIDR

 

ldns.content = "1.1.1.%u" % i

 

ldns.negate = False

 

 

top_def.server = [server]

 

top_def.ldns = [ldns]

 

 

try:

 

t.create(

 

records = [top_def],

 

weights=[100],

 

orders=[1]

 

)

 

except Exception, e:

 

print "Error creating topology"

 

print e

 

else:

 

print 'The i for loop is over'

 

s = b.System.ConfigSync

 

s.save_configuration(filename = "", save_flag = 0)

 

 

Didn't know whether it is expected behavior for GlobalLB, but I think it might not be efficient if each topology create will trigger a file saving action.