1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
|
import contextlib
import json
import shutil
import socket
import tarfile
import tempfile
import threading
import pytest
import six
from six.moves import BaseHTTPServer
from six.moves import socketserver
import docker
from ..helpers import requires_api_version
from .base import BaseAPIIntegrationTest, BUSYBOX
class ListImagesTest(BaseAPIIntegrationTest):
def test_images(self):
res1 = self.client.images(all=True)
self.assertIn('Id', res1[0])
res10 = res1[0]
self.assertIn('Created', res10)
self.assertIn('RepoTags', res10)
distinct = []
for img in res1:
if img['Id'] not in distinct:
distinct.append(img['Id'])
self.assertEqual(len(distinct), self.client.info()['Images'])
def test_images_quiet(self):
res1 = self.client.images(quiet=True)
self.assertEqual(type(res1[0]), six.text_type)
class PullImageTest(BaseAPIIntegrationTest):
def test_pull(self):
try:
self.client.remove_image('hello-world')
except docker.errors.APIError:
pass
res = self.client.pull('hello-world', tag='latest')
self.tmp_imgs.append('hello-world')
self.assertEqual(type(res), six.text_type)
self.assertGreaterEqual(
len(self.client.images('hello-world')), 1
)
img_info = self.client.inspect_image('hello-world')
self.assertIn('Id', img_info)
def test_pull_streaming(self):
try:
self.client.remove_image('hello-world')
except docker.errors.APIError:
pass
stream = self.client.pull(
'hello-world', tag='latest', stream=True, decode=True)
self.tmp_imgs.append('hello-world')
for chunk in stream:
assert isinstance(chunk, dict)
self.assertGreaterEqual(
len(self.client.images('hello-world')), 1
)
img_info = self.client.inspect_image('hello-world')
self.assertIn('Id', img_info)
class CommitTest(BaseAPIIntegrationTest):
def test_commit(self):
container = self.client.create_container(BUSYBOX, ['touch', '/test'])
id = container['Id']
self.client.start(id)
self.tmp_containers.append(id)
res = self.client.commit(id)
self.assertIn('Id', res)
img_id = res['Id']
self.tmp_imgs.append(img_id)
img = self.client.inspect_image(img_id)
self.assertIn('Container', img)
self.assertTrue(img['Container'].startswith(id))
self.assertIn('ContainerConfig', img)
self.assertIn('Image', img['ContainerConfig'])
self.assertEqual(BUSYBOX, img['ContainerConfig']['Image'])
busybox_id = self.client.inspect_image(BUSYBOX)['Id']
self.assertIn('Parent', img)
self.assertEqual(img['Parent'], busybox_id)
def test_commit_with_changes(self):
cid = self.client.create_container(BUSYBOX, ['touch', '/test'])
self.tmp_containers.append(cid)
self.client.start(cid)
img_id = self.client.commit(
cid, changes=['EXPOSE 8000', 'CMD ["bash"]']
)
self.tmp_imgs.append(img_id)
img = self.client.inspect_image(img_id)
assert 'Container' in img
assert img['Container'].startswith(cid['Id'])
assert '8000/tcp' in img['Config']['ExposedPorts']
assert img['Config']['Cmd'] == ['bash']
class RemoveImageTest(BaseAPIIntegrationTest):
def test_remove(self):
container = self.client.create_container(BUSYBOX, ['touch', '/test'])
id = container['Id']
self.client.start(id)
self.tmp_containers.append(id)
res = self.client.commit(id)
self.assertIn('Id', res)
img_id = res['Id']
self.tmp_imgs.append(img_id)
self.client.remove_image(img_id, force=True)
images = self.client.images(all=True)
res = [x for x in images if x['Id'].startswith(img_id)]
self.assertEqual(len(res), 0)
class ImportImageTest(BaseAPIIntegrationTest):
'''Base class for `docker import` test cases.'''
TAR_SIZE = 512 * 1024
def write_dummy_tar_content(self, n_bytes, tar_fd):
def extend_file(f, n_bytes):
f.seek(n_bytes - 1)
f.write(bytearray([65]))
f.seek(0)
tar = tarfile.TarFile(fileobj=tar_fd, mode='w')
with tempfile.NamedTemporaryFile() as f:
extend_file(f, n_bytes)
tarinfo = tar.gettarinfo(name=f.name, arcname='testdata')
tar.addfile(tarinfo, fileobj=f)
tar.close()
@contextlib.contextmanager
def dummy_tar_stream(self, n_bytes):
'''Yields a stream that is valid tar data of size n_bytes.'''
with tempfile.NamedTemporaryFile() as tar_file:
self.write_dummy_tar_content(n_bytes, tar_file)
tar_file.seek(0)
yield tar_file
@contextlib.contextmanager
def dummy_tar_file(self, n_bytes):
'''Yields the name of a valid tar file of size n_bytes.'''
with tempfile.NamedTemporaryFile(delete=False) as tar_file:
self.write_dummy_tar_content(n_bytes, tar_file)
tar_file.seek(0)
yield tar_file.name
def test_import_from_bytes(self):
with self.dummy_tar_stream(n_bytes=500) as f:
content = f.read()
# The generic import_image() function cannot import in-memory bytes
# data that happens to be represented as a string type, because
# import_image() will try to use it as a filename and usually then
# trigger an exception. So we test the import_image_from_data()
# function instead.
statuses = self.client.import_image_from_data(
content, repository='test/import-from-bytes')
result_text = statuses.splitlines()[-1]
result = json.loads(result_text)
self.assertNotIn('error', result)
img_id = result['status']
self.tmp_imgs.append(img_id)
def test_import_from_file(self):
with self.dummy_tar_file(n_bytes=self.TAR_SIZE) as tar_filename:
# statuses = self.client.import_image(
# src=tar_filename, repository='test/import-from-file')
statuses = self.client.import_image_from_file(
tar_filename, repository='test/import-from-file')
result_text = statuses.splitlines()[-1]
result = json.loads(result_text)
self.assertNotIn('error', result)
self.assertIn('status', result)
img_id = result['status']
self.tmp_imgs.append(img_id)
def test_import_from_stream(self):
with self.dummy_tar_stream(n_bytes=self.TAR_SIZE) as tar_stream:
statuses = self.client.import_image(
src=tar_stream, repository='test/import-from-stream')
# statuses = self.client.import_image_from_stream(
# tar_stream, repository='test/import-from-stream')
result_text = statuses.splitlines()[-1]
result = json.loads(result_text)
self.assertNotIn('error', result)
self.assertIn('status', result)
img_id = result['status']
self.tmp_imgs.append(img_id)
def test_import_image_from_data_with_changes(self):
with self.dummy_tar_stream(n_bytes=500) as f:
content = f.read()
statuses = self.client.import_image_from_data(
content, repository='test/import-from-bytes',
changes=['USER foobar', 'CMD ["echo"]']
)
result_text = statuses.splitlines()[-1]
result = json.loads(result_text)
assert 'error' not in result
img_id = result['status']
self.tmp_imgs.append(img_id)
img_data = self.client.inspect_image(img_id)
assert img_data is not None
assert img_data['Config']['Cmd'] == ['echo']
assert img_data['Config']['User'] == 'foobar'
def test_import_image_with_changes(self):
with self.dummy_tar_file(n_bytes=self.TAR_SIZE) as tar_filename:
statuses = self.client.import_image(
src=tar_filename, repository='test/import-from-file',
changes=['USER foobar', 'CMD ["echo"]']
)
result_text = statuses.splitlines()[-1]
result = json.loads(result_text)
assert 'error' not in result
img_id = result['status']
self.tmp_imgs.append(img_id)
img_data = self.client.inspect_image(img_id)
assert img_data is not None
assert img_data['Config']['Cmd'] == ['echo']
assert img_data['Config']['User'] == 'foobar'
@contextlib.contextmanager
def temporary_http_file_server(self, stream):
'''Serve data from an IO stream over HTTP.'''
class Handler(BaseHTTPServer.BaseHTTPRequestHandler):
def do_GET(self):
self.send_response(200)
self.send_header('Content-Type', 'application/x-tar')
self.end_headers()
shutil.copyfileobj(stream, self.wfile)
server = socketserver.TCPServer(('', 0), Handler)
thread = threading.Thread(target=server.serve_forever)
thread.setDaemon(True)
thread.start()
yield 'http://%s:%s' % (socket.gethostname(), server.server_address[1])
server.shutdown()
@pytest.mark.skipif(True, reason="Doesn't work inside a container - FIXME")
def test_import_from_url(self):
# The crappy test HTTP server doesn't handle large files well, so use
# a small file.
tar_size = 10240
with self.dummy_tar_stream(n_bytes=tar_size) as tar_data:
with self.temporary_http_file_server(tar_data) as url:
statuses = self.client.import_image(
src=url, repository='test/import-from-url')
result_text = statuses.splitlines()[-1]
result = json.loads(result_text)
self.assertNotIn('error', result)
self.assertIn('status', result)
img_id = result['status']
self.tmp_imgs.append(img_id)
@requires_api_version('1.25')
class PruneImagesTest(BaseAPIIntegrationTest):
def test_prune_images(self):
try:
self.client.remove_image('hello-world')
except docker.errors.APIError:
pass
# Ensure busybox does not get pruned
ctnr = self.client.create_container(BUSYBOX, ['sleep', '9999'])
self.tmp_containers.append(ctnr)
self.client.pull('hello-world', tag='latest')
self.tmp_imgs.append('hello-world')
img_id = self.client.inspect_image('hello-world')['Id']
result = self.client.prune_images()
assert img_id not in [
img.get('Deleted') for img in result['ImagesDeleted']
]
result = self.client.prune_images({'dangling': False})
assert result['SpaceReclaimed'] > 0
assert 'hello-world:latest' in [
img.get('Untagged') for img in result['ImagesDeleted']
]
assert img_id in [
img.get('Deleted') for img in result['ImagesDeleted']
]
|
