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Node to Pool to VIP referencing in IControl
Hello,
Want to know how I gather info where node will reference to pools it's in, and pools assignments to VIP(s) NodeAddressV2.get_metadata supposed to give me this info, but I am getting empty list.
Thanks in advance
3 Replies
- Theo_12742
Cirrus
Unless you're using metadata capable config (MCC) objects, you won't see that information. However, it's easy to build a reverse lookup using API.
Here's an example using python (bigsuds). For simplicity, I'm storing the list of pools and their members locally and using a known node name, but this can easily be iterated.
import bigsuds Node to search for node = '/Common/1.2.3.4' print "Pools using Node "+node Connect to BIG-IP b = bigsuds.BIGIP(hostname, username, password) Get list of pools and pool members pools = b.LocalLB.Pool.get_list() members = b.LocalLB.Pool.get_member_v2(pools) Iterate through pool member list (has a list of members per pool referenced) looking for node for i, pool in enumerate(pool_members): for member in pool: if member['address'] == node: print "\t"+pools[i]and here's the same for Pools to Virtual Servers:
import bigsuds Pool to search for pool = '/Common/my_pool' print "Virtual Servers using Pool "+pool Connect to BIG-IP b = bigsuds.BIGIP(hostname, username, password) Get list of pools and pool members virtual_servers = b.LocalLB.VirtualServer.get_list() vs_pools = b.LocalLB.VirtualServer.get_default_pool_name(virtual_servers) Iterate through pool member list (has a list of members per pool referenced) looking for node for i, vs_pool in enumerate(vs_pools): if pool == vs_pool: print "\t"+virtual_servers[i]- stecino_87658
Nimbostratus
Thanks for the feedback, I was trying to avoid having to do that :) This will be pretty expensive query every time i run it. I may have to cache for some short period of time vip and pool list to make this faster - Theo_12742
Cirrus
I actually offload to a MySQL database and give each property a "cache for" value. Thus it pulls certain data less often. This is just the "magic sauce" behind the program. Happy coding!
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