OpenStack in a snap!
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#!/usr/bin/env python
"""
cluster_test.py
This is a test to verify that we can setup a small, two node cluster.
The host running this test must have at least 16GB of RAM, four cpu
cores, a large amount of disk space, and the ability to run multipass
vms.
"""
import json
import os
import sys
import unittest
sys.path.append(os.getcwd())
from tests.framework import Framework, check, check_output, call # noqa E402
os.environ['MULTIPASS'] = 'true' # TODO better way to do this.
class TestCluster(Framework):
def test_cluster(self):
# After the setUp step, we should have a control node running
# in a multipass vm. Let's look up its cluster password and ip
# address.
openstack = '/snap/bin/microstack.openstack'
control_host = self.get_host()
control_host.install()
control_host.init(flag='control')
control_prefix = control_host.prefix
cluster_password = check_output(*control_prefix, 'sudo', 'snap',
'get', 'microstack',
'config.cluster.password')
control_ip = check_output(*control_prefix, 'sudo', 'snap',
'get', 'microstack',
'config.network.control-ip')
self.assertTrue(cluster_password)
self.assertTrue(control_ip)
compute_host = self.add_host()
compute_host.install()
compute_machine = compute_host.machine
compute_prefix = compute_host.prefix
# TODO add the following to args for init
check(*compute_prefix, 'sudo', 'snap', 'set', 'microstack',
'config.network.control-ip={}'.format(control_ip))
check(*compute_prefix, 'sudo', 'microstack.init', '--compute',
'--cluster-password', cluster_password, '--debug')
# Verify that our services look setup properly on compute node.
services = check_output(
*compute_prefix, 'systemctl', 'status', 'snap.microstack.*',
'--no-page')
self.assertTrue('nova-compute' in services)
self.assertFalse('keystone-' in services)
check(*compute_prefix, '/snap/bin/microstack.launch', 'cirros',
'--name', 'breakfast', '--retry',
'--availability-zone', 'nova:{}'.format(compute_machine))
# TODO: verify horizon dashboard on control node.
# Verify endpoints
compute_ip = check_output(*compute_prefix, 'sudo', 'snap',
'get', 'microstack',
'config.network.compute-ip')
self.assertFalse(compute_ip == control_ip)
# Ping the instance
ip = None
servers = check_output(*compute_prefix, openstack,
'server', 'list', '--format', 'json')
servers = json.loads(servers)
for server in servers:
if server['Name'] == 'breakfast':
ip = server['Networks'].split(",")[1].strip()
break
self.assertTrue(ip)
pings = 1
max_pings = 60 # ~1 minutes
# Ping the machine from the control node (we don't have
# networking wired up for the other nodes).
while not call(*control_prefix, 'ping', '-c1', '-w1', ip):
pings += 1
if pings > max_pings:
self.assertFalse(
True,
msg='Max pings reached for instance on {}!'.format(
compute_machine))
self.passed = True
# Compute machine cleanup
check('sudo', 'multipass', 'delete', compute_machine)
if __name__ == '__main__':
# Run our tests, ignoring deprecation warnings and warnings about
# unclosed sockets. (TODO: setup a selenium server so that we can
# move from PhantomJS, which is deprecated, to to Selenium headless.)
unittest.main(warnings='ignore')