I encountered a similar issue and managed to solve it by creating a simple
filter plugin:
def ip_in_net(list, net):
from netaddr import IPAddress, IPNetwork
return [ip for ip in list if IPAddress(ip) in IPNetwork(net)]
class FilterModule(object):
def filters(self):
return {
'ip_in_net': ip_in_net
}
and then use it like that:
ip: "{{ ansible_all_ipv4_addresses | ip_in_net('172.16.0.0/24') | first }}"
Now this obviously does not work with your data, and requires a 'netaddr'
Python package (apt-get install python-netaddr in my Ubuntu 14.04), but
quite likely you could use the interface provided by that package to suit
your needs exactly, it's very friendly.
2016-10-20 18:02 GMT+02:00 Dayton Jones <[email protected]>:
> Ok, given the following group_vars:
>
>
> iloms:
> - gateway: 10.224.64.1
> mask: 255.255.248.0
> - gateway: 10.85.0.1
> mask: 255.255.254.0
>
>
> and an ip from a lookup:
>
> ilom_ip: "{{ lookup('dig', 'mgmt-' + ansible_local.system_facts.host_serial
> + '.example.com') }}"
>
>
>
> I need to compare ilom_ip to {{ item.gateway }}/{{ item.mask }} and if it
> is in the same subnet, use those values (and if not, test the next, etc)
>
> I know I can concatenate the gw and mask:
> ilom_net = '{{ item.gateway }}/{{ item.mask }}'
>
> with_items: iloms
>
>
> and that I can test if ilom_ip is in the same subnet as ilom_net with:
>
> {{ ilom_ip | ipaddr(ilom_net) }}
>
>
>
> But how do I combine these into a task and reliably get the correct
> gw/mask to use in additional tasks (setting ip/gw/netmask on on ilom)
>
>
>
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