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from copy import copy
import json
import os
import os.path
import shutil
import tempfile
from unittest import TestCase
from cloudinit.sources import DataSourceConfigDrive as ds
from cloudinit import util
PUBKEY = u'ssh-rsa AAAAB3NzaC1....sIkJhq8wdX+4I3A4cYbYP ubuntu@server-460\n'
EC2_META = {
'ami-id': 'ami-00000001',
'ami-launch-index': 0,
'ami-manifest-path': 'FIXME',
'block-device-mapping': {
'ami': 'sda1',
'ephemeral0': 'sda2',
'root': '/dev/sda1',
'swap': 'sda3'},
'hostname': 'sm-foo-test.novalocal',
'instance-action': 'none',
'instance-id': 'i-00000001',
'instance-type': 'm1.tiny',
'local-hostname': 'sm-foo-test.novalocal',
'local-ipv4': None,
'placement': {'availability-zone': 'nova'},
'public-hostname': 'sm-foo-test.novalocal',
'public-ipv4': '',
'public-keys': {'0': {'openssh-key': PUBKEY}},
'reservation-id': 'r-iru5qm4m',
'security-groups': ['default']
}
USER_DATA = '#!/bin/sh\necho This is user data\n'
OSTACK_META = {
'availability_zone': 'nova',
'files': [{'content_path': '/content/0000', 'path': '/etc/foo.cfg'},
{'content_path': '/content/0001', 'path': '/etc/bar/bar.cfg'}],
'hostname': 'sm-foo-test.novalocal',
'meta': {'dsmode': 'local', 'my-meta': 'my-value'},
'name': 'sm-foo-test',
'public_keys': {'mykey': PUBKEY},
'uuid': 'b0fa911b-69d4-4476-bbe2-1c92bff6535c'}
CONTENT_0 = 'This is contents of /etc/foo.cfg\n'
CONTENT_1 = '# this is /etc/bar/bar.cfg\n'
CFG_DRIVE_FILES_V2 = {
'ec2/2009-04-04/meta-data.json': json.dumps(EC2_META),
'ec2/2009-04-04/user-data': USER_DATA,
'ec2/latest/meta-data.json': json.dumps(EC2_META),
'ec2/latest/user-data': USER_DATA,
'openstack/2012-08-10/meta_data.json': json.dumps(OSTACK_META),
'openstack/2012-08-10/user_data': USER_DATA,
'openstack/content/0000': CONTENT_0,
'openstack/content/0001': CONTENT_1,
'openstack/latest/meta_data.json': json.dumps(OSTACK_META),
'openstack/latest/user_data': USER_DATA}
class TestConfigDriveDataSource(TestCase):
def setUp(self):
super(TestConfigDriveDataSource, self).setUp()
self.tmp = tempfile.mkdtemp()
def tearDown(self):
try:
shutil.rmtree(self.tmp)
except OSError:
pass
def test_dir_valid(self):
"""Verify a dir is read as such."""
populate_dir(self.tmp, CFG_DRIVE_FILES_V2)
found = ds.read_config_drive_dir(self.tmp)
expected_md = copy(OSTACK_META)
expected_md['instance-id'] = expected_md['uuid']
self.assertEqual(USER_DATA, found['userdata'])
self.assertEqual(expected_md, found['metadata'])
self.assertEqual(found['files']['/etc/foo.cfg'], CONTENT_0)
self.assertEqual(found['files']['/etc/bar/bar.cfg'], CONTENT_1)
def test_seed_dir_valid_extra(self):
"""Verify extra files do not affect datasource validity."""
data = copy(CFG_DRIVE_FILES_V2)
data["myfoofile.txt"] = "myfoocontent"
data["openstack/latest/random-file.txt"] = "random-content"
populate_dir(self.tmp, data)
found = ds.read_config_drive_dir(self.tmp)
expected_md = copy(OSTACK_META)
expected_md['instance-id'] = expected_md['uuid']
self.assertEqual(expected_md, found['metadata'])
def test_seed_dir_bad_json_metadata(self):
"""Verify that bad json in metadata raises BrokenConfigDriveDir."""
data = copy(CFG_DRIVE_FILES_V2)
data["openstack/2012-08-10/meta_data.json"] = "non-json garbage {}"
data["openstack/latest/meta_data.json"] = "non-json garbage {}"
populate_dir(self.tmp, data)
self.assertRaises(ds.BrokenConfigDriveDir,
ds.read_config_drive_dir, self.tmp)
def test_seed_dir_no_configdrive(self):
"""Verify that no metadata raises NonConfigDriveDir."""
my_d = os.path.join(self.tmp, "non-configdrive")
data = copy(CFG_DRIVE_FILES_V2)
data["myfoofile.txt"] = "myfoocontent"
data["openstack/latest/random-file.txt"] = "random-content"
data["content/foo"] = "foocontent"
self.assertRaises(ds.NonConfigDriveDir,
ds.read_config_drive_dir, my_d)
def test_seed_dir_missing(self):
"""Verify that missing seed_dir raises NonConfigDriveDir."""
my_d = os.path.join(self.tmp, "nonexistantdirectory")
self.assertRaises(ds.NonConfigDriveDir,
ds.read_config_drive_dir, my_d)
def test_find_candidates(self):
devs_with_answers = {
"TYPE=vfat": [],
"TYPE=iso9660": ["/dev/vdb"],
"LABEL=config-2": ["/dev/vdb"],
}
def my_devs_with(criteria):
return devs_with_answers[criteria]
try:
orig_find_devs_with = util.find_devs_with
util.find_devs_with = my_devs_with
self.assertEqual(["/dev/vdb"], ds.find_candidate_devs())
# add a vfat item
# zdd reverse sorts after vdb, but config-2 label is preferred
devs_with_answers['TYPE=vfat'] = ["/dev/zdd"]
self.assertEqual(["/dev/vdb", "/dev/zdd"],
ds.find_candidate_devs())
# verify that partitions are not considered
devs_with_answers = {"TYPE=vfat": ["/dev/sda1"],
"TYPE=iso9660": [], "LABEL=config-2": ["/dev/vdb3"]}
self.assertEqual([], ds.find_candidate_devs())
finally:
util.find_devs_with = orig_find_devs_with
def populate_dir(seed_dir, files):
for (name, content) in files.iteritems():
path = os.path.join(seed_dir, name)
dirname = os.path.dirname(path)
if not os.path.isdir(dirname):
os.makedirs(dirname)
with open(path, "w") as fp:
fp.write(content)
fp.close()
# vi: ts=4 expandtab
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