Forum Discussion
Query to retrieve VIP name from Node IP input
- Jun 06, 2018
This should do it, though it is fairly resource-intensive if you have a lot of virtual servers / pools / nodes:
!/usr/bin/env python3 from f5.bigip import ManagementRoot from getpass import getpass from pprint import pprint hostname = 'my.f5.ltm.net' username = 'foo' node_ips = ['192.168.1.1', 192.168.1.2', '192.168.1.3'] mgmt = ManagmentRoot(hostname, username, getpass()) Get node names that have IPs in the list nodes = [] for node in mgmt.tm.ltm.nodes.get_collection(): if node.address in node_ips: fullPath is /PARTITION/NAME nodes.append(node.fullPath) Get pool names which nodes in list belong pools = [] for pool in mgmt.tm.ltm.pools.get_collection(): members = pool.members_s.get_collection() for member in members: Member fullpath is '/PARTITION/NODENAME:SERVICE_PORT' if member.fullPath.split(':')[0] in nodes: pools.append(pool.fullPath) break Get virtual server names which pools in list belong virtuals = [] for virtual in mgmt.tm.ltm.virtuals.get_collection(): if hasattr(virtual, 'pool') and virtual.pool in pools: virtuals.append(virtual.fullPath) pprint(virtuals)
This should do it, though it is fairly resource-intensive if you have a lot of virtual servers / pools / nodes:
!/usr/bin/env python3
from f5.bigip import ManagementRoot
from getpass import getpass
from pprint import pprint
hostname = 'my.f5.ltm.net'
username = 'foo'
node_ips = ['192.168.1.1', 192.168.1.2', '192.168.1.3']
mgmt = ManagmentRoot(hostname, username, getpass())
Get node names that have IPs in the list
nodes = []
for node in mgmt.tm.ltm.nodes.get_collection():
if node.address in node_ips:
fullPath is /PARTITION/NAME
nodes.append(node.fullPath)
Get pool names which nodes in list belong
pools = []
for pool in mgmt.tm.ltm.pools.get_collection():
members = pool.members_s.get_collection()
for member in members:
Member fullpath is '/PARTITION/NODENAME:SERVICE_PORT'
if member.fullPath.split(':')[0] in nodes:
pools.append(pool.fullPath)
break
Get virtual server names which pools in list belong
virtuals = []
for virtual in mgmt.tm.ltm.virtuals.get_collection():
if hasattr(virtual, 'pool') and virtual.pool in pools:
virtuals.append(virtual.fullPath)
pprint(virtuals)
- paul_dawson_258Jun 08, 2018Nimbostratus
Thanks Jason, how can I output them on one line i.e. [node_ip, node, pool, virtual].
I'm not strong on Python.
- Jason_NanceJun 11, 2018Nimbostratus
Give this version a try. It will print the same virtual server / pool multiple times - one for each member (node) with an IP in the list. Please make sure to spot check this before relying on its data as it was done quickly and I could have easily overlooked some detail.
!/usr/bin/env python3 from f5.bigip import ManagementRoot from getpass import getpass from pprint import pprint hostname = 'my.f5.ltm.net' username = 'foo' node_ips = ['192.168.1.1', '192.168.1.2', '192.168.1.3'] mgmt = ManagmentRoot(hostname, username, getpass()) Get node names that have IPs in the list nodes = {} for node in mgmt.tm.ltm.nodes.get_collection(): if node.address in node_ips: fullPath is /PARTITION/NAME (or /PARTITION/SUB_PATH/NAME) nodes[node.fullPath] = node.address Get pool names which nodes in list belong pools = {} for pool in mgmt.tm.ltm.pools.get_collection(): members = pool.members_s.get_collection() for member in members: Member fullpath is /PARTITION/NODENAME:SERVICE_PORT (or /PARTITION/SUB_PATH/NODENAME:SERVER_PORT) if member.fullPath.split(':')[0] in nodes: if pool.fullPath in pools: pools[pool.fullPath].append(member.fullPath.split(':')[0]) else: pools[pool.fullPath] = [member.fullPath.split(':')[0]] Get virtual server names which pools in list belong virtuals = {} for virtual in mgmt.tm.ltm.virtuals.get_collection(): if hasattr(virtual, 'pool') and virtual.pool in pools: virtuals[virtual.fullPath] = virtual.pool Print CSV print('Node IP,Node,Pool,Virtual') Use iteritems() instead of items() with Python 2.x for virtual, pool in virtuals.items(): for node in pools[pool]: print('{},{},{},{}'.format( nodes[node], node, pool, virtual, ))
- paul_dawson_258Jun 14, 2018Nimbostratus
Thanks Jason this is extremely helpful and working. I just have one last question. As we are using route domains and there is a % in the node_ip, we have to put the route domain in for the script to find the associated Pools/VIPs etc. Is there any way to query the DB without having to include the partition in the node_ip?
Thanks again for your help.
- Jason_NanceJun 14, 2018Nimbostratus
That notation (
) is called a route domain. There's a couple ways to deal with it depending on your situation but it can be a bit iffy if you have duplicate IPs in use on a different route domains (one of the primary reasons to use route domains).w.x.y.z%something
The easy/cheesy option is to use a little script to generate the
list for you with the route domains included:node_ips
!/usr/bin/env python3 from f5.bigip import ManagementRoot from getpass import getpass from pprint import pprint hostname = 'my.f5.ltm.net' username = 'foo' Node IPs without route domain node_ips_wo_rd = ['192.168.1.1', '192.168.1.2', '192.168.1.3'] node_ips = [] mgmt = ManagmentRoot(hostname, username, getpass()) Pull back all nodes that have an IP in the list (regardless of route domain) and print out a list with the route domain included This will be slow for LTMs with lots of nodes for node in mgmt.tm.ltm.nodes.get_collection(): if node.address.split('%')[0] in node_ips_wo_rd: node_ips.append(node.address) print('node_ips = [{}]'.format(', '.join(["'{}'".format(x) for x in node_ips])))
That will print out something like:
node_ips = ['192.168.1.1%400', '192.168.1.2%300', '192.168.1.2%301', '192.168.1.3']
...which you can clean up (such as if you have duplicate IPs on different route domains and don't want them all) and then copy/paste into the other script.
If that doesn't fit the need let me know what's up and we can come up with a different option.
- paul_dawson_258Jul 03, 2018Nimbostratus
Jason this works like a charm. May I request an additional feature? Is it possible ti include the VIP IP address? Last request!
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