test_set/cvp-sanity/tests/test_single_vip.py

import utils
import json
import pytest


@pytest.mark.smoke
def test_single_vip_exists(local_salt_client):
    """Test checks that there is only one VIP address
       within one group of nodes (where applicable).
       Steps:
       1. Get IP addresses for nodes via salt cmd.run 'ip a | grep /32'
       2. Check that exactly 1 node responds with something.
    """
    groups = utils.calculate_groups()

    keywords_to_exclude_interfaces = ["flannel.1"]
    exclude_from_grep =  " | grep -v {}".format('\|'.join(keywords_to_exclude_interfaces)) \
                        if len(keywords_to_exclude_interfaces) > 0 \
                        else ""
    no_vip = {}
    for group in groups:
        if group in ['cmp', 'cfg', 'kvm', 'cmn', 'osd', 'gtw', 'dns', 'apt']:
            continue
        nodes_list = local_salt_client.cmd(
            tgt="L@" + ','.join(groups[group]),
            fun='cmd.run',
            param='ip a | grep /32 ' + exclude_from_grep,
            expr_form='compound')
        result = [x for x in list(nodes_list.values()) if x]
        if len(result) != 1:
            if len(result) == 0:
                no_vip[group] = 'No vip found'
            else:
                no_vip[group] = nodes_list
    assert len(no_vip) < 1, (
        "The following group(s) of nodes have problem with vip:\n{}".format(
            json.dumps(no_vip, indent=4))
    )