|
1
|
|
|
from __future__ import print_function |
|
2
|
|
|
|
|
3
|
|
|
import contextlib |
|
4
|
|
|
import sys |
|
5
|
|
|
|
|
6
|
|
|
import docker |
|
7
|
|
|
|
|
8
|
|
|
import ssg_test_suite |
|
9
|
|
|
from ssg_test_suite.virt import SnapshotStack |
|
10
|
|
|
|
|
11
|
|
|
|
|
12
|
|
|
class TestEnv(object): |
|
13
|
|
|
def __init__(self): |
|
14
|
|
|
self.domain_ip = "" |
|
15
|
|
|
|
|
16
|
|
|
def start(self): |
|
17
|
|
|
pass |
|
18
|
|
|
|
|
19
|
|
|
def finalize(self): |
|
20
|
|
|
pass |
|
21
|
|
|
|
|
22
|
|
|
def _get_snapshot(self, snapshot_name): |
|
23
|
|
|
raise NotImplementedError() |
|
24
|
|
|
|
|
25
|
|
|
def _revert_snapshot(self, snapshot_name): |
|
26
|
|
|
raise NotImplementedError() |
|
27
|
|
|
|
|
28
|
|
|
@contextlib.contextmanager |
|
29
|
|
|
def in_layer(self, snapshot_name, delete=True): |
|
30
|
|
|
snapshot = self._get_snapshot(snapshot_name) |
|
31
|
|
|
exception_to_reraise = None |
|
32
|
|
|
try: |
|
33
|
|
|
yield snapshot |
|
34
|
|
|
except KeyboardInterrupt as exc: |
|
35
|
|
|
print("Hang on for a minute, cleaning up the snapshot '{0}'." |
|
36
|
|
|
.format(snapshot_name), file=sys.stderr) |
|
37
|
|
|
exception_to_reraise = exc |
|
38
|
|
|
finally: |
|
39
|
|
|
try: |
|
40
|
|
|
self._revert_snapshot(snapshot) |
|
41
|
|
|
except KeyboardInterrupt as exc: |
|
42
|
|
|
print("Hang on for a minute, cleaning up the snapshot '{0}'." |
|
43
|
|
|
.format(snapshot_name), file=sys.stderr) |
|
44
|
|
|
self._revert_snapshot(snapshot) |
|
45
|
|
|
finally: |
|
46
|
|
|
if exception_to_reraise: |
|
47
|
|
|
raise exception_to_reraise |
|
48
|
|
|
|
|
49
|
|
|
|
|
50
|
|
|
class VMTestEnv(TestEnv): |
|
51
|
|
|
name = "libvirt-based" |
|
52
|
|
|
|
|
53
|
|
|
def __init__(self, hypervisor, domain_name): |
|
54
|
|
|
super(VMTestEnv, self).__init__() |
|
55
|
|
|
|
|
56
|
|
|
self.hypervisor = hypervisor |
|
57
|
|
|
self.domain_name = domain_name |
|
58
|
|
|
self.snapshot_stack = None |
|
59
|
|
|
|
|
60
|
|
|
def start(self): |
|
61
|
|
|
dom = ssg_test_suite.virt.connect_domain( |
|
62
|
|
|
self.hypervisor, self.domain_name) |
|
63
|
|
|
self.snapshot_stack = SnapshotStack(dom) |
|
64
|
|
|
|
|
65
|
|
|
ssg_test_suite.virt.start_domain(dom) |
|
66
|
|
|
self.domain_ip = ssg_test_suite.virt.determine_ip(dom) |
|
67
|
|
|
|
|
68
|
|
|
def _get_snapshot(self, snapshot_name): |
|
69
|
|
|
return self.snapshot_stack.create(snapshot_name) |
|
70
|
|
|
|
|
71
|
|
|
def _revert_snapshot(self, snapshot): |
|
72
|
|
|
self.snapshot_stack.revert() |
|
73
|
|
|
|
|
74
|
|
|
|
|
75
|
|
|
class DockerTestEnv(TestEnv): |
|
76
|
|
|
name = "container-based" |
|
77
|
|
|
|
|
78
|
|
|
def __init__(self, image_name): |
|
79
|
|
|
super(DockerTestEnv, self).__init__() |
|
80
|
|
|
|
|
81
|
|
|
self._name_stem = "ssg_test" |
|
82
|
|
|
|
|
83
|
|
|
try: |
|
84
|
|
|
self.client = docker.from_env(version="auto") |
|
85
|
|
|
self.client.ping() |
|
86
|
|
|
except Exception as exc: |
|
87
|
|
|
msg = ( |
|
88
|
|
|
"Unable to start the Docker test environment, " |
|
89
|
|
|
"is the Docker service started " |
|
90
|
|
|
"and do you have rights to access it?" |
|
91
|
|
|
.format(str(exc))) |
|
92
|
|
|
raise RuntimeError(msg) |
|
93
|
|
|
self.base_image = image_name |
|
94
|
|
|
self.created_images = [] |
|
95
|
|
|
self.containers = [] |
|
96
|
|
|
|
|
97
|
|
|
@property |
|
98
|
|
|
def current_container(self): |
|
99
|
|
|
if self.containers: |
|
100
|
|
|
return self.containers[-1] |
|
101
|
|
|
return None |
|
102
|
|
|
|
|
103
|
|
|
def _create_new_image(self, from_container, name): |
|
104
|
|
|
new_image_name = "{0}_{1}".format(self.base_image, name) |
|
105
|
|
|
from_container.commit(repository=new_image_name) |
|
106
|
|
|
self.created_images.append(new_image_name) |
|
107
|
|
|
return new_image_name |
|
108
|
|
|
|
|
109
|
|
|
def _new_container(self, name): |
|
110
|
|
|
if self.containers: |
|
111
|
|
|
img = self._create_new_image(self.containers[-1], name) |
|
112
|
|
|
else: |
|
113
|
|
|
img = self.base_image |
|
114
|
|
|
return self.client.containers.run( |
|
115
|
|
|
img, "/usr/sbin/sshd -D", |
|
116
|
|
|
name="{0}_{1}".format(self._name_stem, name), ports={"22": None}, |
|
117
|
|
|
detach=True) |
|
118
|
|
|
|
|
119
|
|
|
def _get_snapshot(self, snapshot_name): |
|
120
|
|
|
new_container = self._new_container(snapshot_name) |
|
121
|
|
|
self.containers.append(new_container) |
|
122
|
|
|
|
|
123
|
|
|
new_container.reload() |
|
124
|
|
|
self.domain_ip = new_container.attrs["NetworkSettings"]["Networks"]["bridge"]["IPAddress"] |
|
125
|
|
|
|
|
126
|
|
|
return new_container |
|
127
|
|
|
|
|
128
|
|
|
def _revert_snapshot(self, snapshot): |
|
129
|
|
|
snapshot.stop() |
|
130
|
|
|
snapshot.remove() |
|
131
|
|
|
|
|
132
|
|
|
assert snapshot == self.containers.pop() |
|
133
|
|
|
|
|
134
|
|
|
if self.created_images: |
|
135
|
|
|
associated_image = self.created_images.pop() |
|
136
|
|
|
self.client.images.remove(associated_image) |
|
137
|
|
|
|
ComplianceAsCode /
content
