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from cloudinit import helpers
from cloudinit.sources import DataSourceOpenNebula as ds
from cloudinit import util
from ..helpers import TestCase, populate_dir
from base64 import b64encode
import os
import pwd
import shutil
import tempfile
import unittest
def b64(source):
# In Python 3, b64encode only accepts bytes and returns bytes.
if not isinstance(source, bytes):
source = source.encode('utf-8')
return b64encode(source).decode('us-ascii')
TEST_VARS = {
'VAR1': 'single',
'VAR2': 'double word',
'VAR3': 'multi\nline\n',
'VAR4': "'single'",
'VAR5': "'double word'",
'VAR6': "'multi\nline\n'",
'VAR7': 'single\\t',
'VAR8': 'double\\tword',
'VAR9': 'multi\\t\nline\n',
'VAR10': '\\', # expect \
'VAR11': '\'', # expect '
'VAR12': '$', # expect $
}
INVALID_CONTEXT = ';'
USER_DATA = '#cloud-config\napt_upgrade: true'
SSH_KEY = 'ssh-rsa AAAAB3NzaC1....sIkJhq8wdX+4I3A4cYbYP ubuntu@server-460-%i'
HOSTNAME = 'foo.example.com'
PUBLIC_IP = '10.0.0.3'
CMD_IP_OUT = '''\
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether 02:00:0a:12:01:01 brd ff:ff:ff:ff:ff:ff
'''
class TestOpenNebulaDataSource(TestCase):
parsed_user = None
def setUp(self):
super(TestOpenNebulaDataSource, self).setUp()
self.tmp = tempfile.mkdtemp()
self.addCleanup(shutil.rmtree, self.tmp)
self.paths = helpers.Paths({'cloud_dir': self.tmp})
# defaults for few tests
self.ds = ds.DataSourceOpenNebula
self.seed_dir = os.path.join(self.paths.seed_dir, "opennebula")
self.sys_cfg = {'datasource': {'OpenNebula': {'dsmode': 'local'}}}
# we don't want 'sudo' called in tests. so we patch switch_user_cmd
def my_switch_user_cmd(user):
self.parsed_user = user
return []
self.switch_user_cmd_real = ds.switch_user_cmd
ds.switch_user_cmd = my_switch_user_cmd
def tearDown(self):
ds.switch_user_cmd = self.switch_user_cmd_real
super(TestOpenNebulaDataSource, self).tearDown()
def test_get_data_non_contextdisk(self):
orig_find_devs_with = util.find_devs_with
try:
# dont' try to lookup for CDs
util.find_devs_with = lambda n: []
dsrc = self.ds(sys_cfg=self.sys_cfg, distro=None, paths=self.paths)
ret = dsrc.get_data()
self.assertFalse(ret)
finally:
util.find_devs_with = orig_find_devs_with
def test_get_data_broken_contextdisk(self):
orig_find_devs_with = util.find_devs_with
try:
# dont' try to lookup for CDs
util.find_devs_with = lambda n: []
populate_dir(self.seed_dir, {'context.sh': INVALID_CONTEXT})
dsrc = self.ds(sys_cfg=self.sys_cfg, distro=None, paths=self.paths)
self.assertRaises(ds.BrokenContextDiskDir, dsrc.get_data)
finally:
util.find_devs_with = orig_find_devs_with
def test_get_data_invalid_identity(self):
orig_find_devs_with = util.find_devs_with
try:
# generate non-existing system user name
sys_cfg = self.sys_cfg
invalid_user = 'invalid'
while not sys_cfg['datasource']['OpenNebula'].get('parseuser'):
try:
pwd.getpwnam(invalid_user)
invalid_user += 'X'
except KeyError:
sys_cfg['datasource']['OpenNebula']['parseuser'] = \
invalid_user
# dont' try to lookup for CDs
util.find_devs_with = lambda n: []
populate_context_dir(self.seed_dir, {'KEY1': 'val1'})
dsrc = self.ds(sys_cfg=sys_cfg, distro=None, paths=self.paths)
self.assertRaises(ds.BrokenContextDiskDir, dsrc.get_data)
finally:
util.find_devs_with = orig_find_devs_with
def test_get_data(self):
orig_find_devs_with = util.find_devs_with
try:
# dont' try to lookup for CDs
util.find_devs_with = lambda n: []
populate_context_dir(self.seed_dir, {'KEY1': 'val1'})
dsrc = self.ds(sys_cfg=self.sys_cfg, distro=None, paths=self.paths)
ret = dsrc.get_data()
self.assertTrue(ret)
finally:
util.find_devs_with = orig_find_devs_with
def test_seed_dir_non_contextdisk(self):
self.assertRaises(ds.NonContextDiskDir, ds.read_context_disk_dir,
self.seed_dir)
def test_seed_dir_empty1_context(self):
populate_dir(self.seed_dir, {'context.sh': ''})
results = ds.read_context_disk_dir(self.seed_dir)
self.assertEqual(results['userdata'], None)
self.assertEqual(results['metadata'], {})
def test_seed_dir_empty2_context(self):
populate_context_dir(self.seed_dir, {})
results = ds.read_context_disk_dir(self.seed_dir)
self.assertEqual(results['userdata'], None)
self.assertEqual(results['metadata'], {})
def test_seed_dir_broken_context(self):
populate_dir(self.seed_dir, {'context.sh': INVALID_CONTEXT})
self.assertRaises(ds.BrokenContextDiskDir,
ds.read_context_disk_dir,
self.seed_dir)
def test_context_parser(self):
populate_context_dir(self.seed_dir, TEST_VARS)
results = ds.read_context_disk_dir(self.seed_dir)
self.assertTrue('metadata' in results)
self.assertEqual(TEST_VARS, results['metadata'])
def test_ssh_key(self):
public_keys = ['first key', 'second key']
for c in range(4):
for k in ('SSH_KEY', 'SSH_PUBLIC_KEY'):
my_d = os.path.join(self.tmp, "%s-%i" % (k, c))
populate_context_dir(my_d, {k: '\n'.join(public_keys)})
results = ds.read_context_disk_dir(my_d)
self.assertTrue('metadata' in results)
self.assertTrue('public-keys' in results['metadata'])
self.assertEqual(public_keys,
results['metadata']['public-keys'])
public_keys.append(SSH_KEY % (c + 1,))
def test_user_data_plain(self):
for k in ('USER_DATA', 'USERDATA'):
my_d = os.path.join(self.tmp, k)
populate_context_dir(my_d, {k: USER_DATA,
'USERDATA_ENCODING': ''})
results = ds.read_context_disk_dir(my_d)
self.assertTrue('userdata' in results)
self.assertEqual(USER_DATA, results['userdata'])
def test_user_data_encoding_required_for_decode(self):
b64userdata = b64(USER_DATA)
for k in ('USER_DATA', 'USERDATA'):
my_d = os.path.join(self.tmp, k)
populate_context_dir(my_d, {k: b64userdata})
results = ds.read_context_disk_dir(my_d)
self.assertTrue('userdata' in results)
self.assertEqual(b64userdata, results['userdata'])
def test_user_data_base64_encoding(self):
for k in ('USER_DATA', 'USERDATA'):
my_d = os.path.join(self.tmp, k)
populate_context_dir(my_d, {k: b64(USER_DATA),
'USERDATA_ENCODING': 'base64'})
results = ds.read_context_disk_dir(my_d)
self.assertTrue('userdata' in results)
self.assertEqual(USER_DATA, results['userdata'])
def test_hostname(self):
for k in ('HOSTNAME', 'PUBLIC_IP', 'IP_PUBLIC', 'ETH0_IP'):
my_d = os.path.join(self.tmp, k)
populate_context_dir(my_d, {k: PUBLIC_IP})
results = ds.read_context_disk_dir(my_d)
self.assertTrue('metadata' in results)
self.assertTrue('local-hostname' in results['metadata'])
self.assertEqual(PUBLIC_IP, results['metadata']['local-hostname'])
def test_network_interfaces(self):
populate_context_dir(self.seed_dir, {'ETH0_IP': '1.2.3.4'})
results = ds.read_context_disk_dir(self.seed_dir)
self.assertTrue('network-interfaces' in results)
def test_find_candidates(self):
def my_devs_with(criteria):
return {
"LABEL=CONTEXT": ["/dev/sdb"],
"LABEL=CDROM": ["/dev/sr0"],
"TYPE=iso9660": ["/dev/vdb"],
}.get(criteria, [])
orig_find_devs_with = util.find_devs_with
try:
util.find_devs_with = my_devs_with
self.assertEqual(["/dev/sdb", "/dev/sr0", "/dev/vdb"],
ds.find_candidate_devs())
finally:
util.find_devs_with = orig_find_devs_with
class TestOpenNebulaNetwork(unittest.TestCase):
def setUp(self):
super(TestOpenNebulaNetwork, self).setUp()
def test_lo(self):
net = ds.OpenNebulaNetwork('', {})
self.assertEqual(net.gen_conf(), u'''\
auto lo
iface lo inet loopback
''')
def test_eth0(self):
net = ds.OpenNebulaNetwork(CMD_IP_OUT, {})
self.assertEqual(net.gen_conf(), u'''\
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 10.18.1.1
network 10.18.1.0
netmask 255.255.255.0
''')
def test_eth0_override(self):
context = {
'DNS': '1.2.3.8',
'ETH0_IP': '1.2.3.4',
'ETH0_NETWORK': '1.2.3.0',
'ETH0_MASK': '255.255.0.0',
'ETH0_GATEWAY': '1.2.3.5',
'ETH0_DOMAIN': 'example.com',
'ETH0_DNS': '1.2.3.6 1.2.3.7'
}
net = ds.OpenNebulaNetwork(CMD_IP_OUT, context)
self.assertEqual(net.gen_conf(), u'''\
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 1.2.3.4
network 1.2.3.0
netmask 255.255.0.0
gateway 1.2.3.5
dns-search example.com
dns-nameservers 1.2.3.8 1.2.3.6 1.2.3.7
''')
class TestParseShellConfig(unittest.TestCase):
def test_no_seconds(self):
cfg = '\n'.join(["foo=bar", "SECONDS=2", "xx=foo"])
# we could test 'sleep 2', but that would make the test run slower.
ret = ds.parse_shell_config(cfg)
self.assertEqual(ret, {"foo": "bar", "xx": "foo"})
def populate_context_dir(path, variables):
data = "# Context variables generated by OpenNebula\n"
for k, v in variables.items():
data += ("%s='%s'\n" % (k.upper(), v.replace(r"'", r"'\''")))
populate_dir(path, {'context.sh': data})
# vi: ts=4 expandtab
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