Tier Route Tables for Ansible 2+

tier_rtV2.py

from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

import boto
import boto.vpc
import boto.ec2

from ansible.plugins.lookup import LookupBase
from ansible.errors import AnsibleError
from ansible.module_utils.ec2 import *
from sets import Set

class LookupModule(LookupBase):

    def run(self, terms, variables=None, **kwargs):
        if isinstance(terms, basestring):
           terms = [ terms ]

        ret = [] 
        meta_params = dict(tier=None)

        try:
            vpc = boto.vpc.VPCConnection()
        except Exception, e:
            raise AnsibleError('Boto authentication issue: %s' % e)

        for term in terms:
            eligible_subnets = vpc.get_all_subnets(filters={"tag:tier": term})

            for subnet in eligible_subnets:
                for rt in vpc.get_all_route_tables(filters={'association.subnet_id': subnet.id}):
                    ret.append(rt.id)
        return Set(ret)