How to use resource-manager ip_allocator in python

[jfloresr]

I have the following python code. I get an allocation that I can see when I do show resource-pools but I am not able to convert the "net" object into a string or ipaddress object.

        pool_name = "LOOPS"

        alloc_name = service.name

        self.log.info("Allocating Loopback IP")

        ip_allocator.net_request(service,

                                "/services/leaf-connectivity:leaf-connectivity[name='%s']" % (service.name),

                                tctx.username,

                                pool_name,

                                alloc_name,

                                32)

        net = ip_allocator.net_read(tctx.username, root, pool_name, alloc_name)

        if not net:

                self.log.info("Alloc not ready")

                return

-->     loopback_net = ipaddress.ip_network(str(net)) <--THIS IS WHERE IT BREAKS

Does anybody have an example?

[gschudel · Accepted solution]

I've found that (in python) using the "ipaddress" module makes many tasks easy.

from the Resource Allocator, i've done this:

import ipaddress

#...skip

        tempip = ipaddress.IPv4Network(unicode(net), strict=True)

        vrtrpubip = tempip.network_address            # e.g. 10.87.163.146

you can find details on all the things "ipaddress" can do here:

https://docs.python.org/3/howto/ipaddress.html

here are a few that i've used... (as another example)

        insideVLN = ipaddress.ip_interface(unicode(inVlannet))

        insideVLNip = insideVLN.ip

        insideVLNnet = insideVLN.network

        insideVLNnetGW = insideVLNnet[1]

hth

gregg

[jfloresr]

Thanks for replying, I actually st got it while trying a few things.

I was using the ipaddress module but was not converting the allocated network to utf-8 while passing it and I was getting an error.

It is working node using the following:

net = ip_allocator.net_read(tctx.username, root, pool_name, alloc_name)

ipaddress.ip_network(unicode(net, "utf-8")

service.leaf_loopback_ip = str(ip)

[berkninan78436]

If you want to get the IP address of whichever interface is used to connect to the network without having to know its name, you can use this:

import socket
def get_ip_address():
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(("8.8.8.8", 80))
return s.getsockname()[0]

You do not have to have a route to 8.8.8.8 to use this. All it is doing is opening a socket, but not sending any data.