summaryrefslogtreecommitdiff
path: root/test/python/docker/compat/test_containers.py
blob: d14c09fc1b0a596a05cc2def682b7a97f8a5b0a3 (plain)
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
import io
import subprocess
import sys
import time
import unittest
from typing import IO, Optional, List

from docker import DockerClient, errors
from docker.models.containers import Container
from docker.models.images import Image
from docker.models.volumes import Volume
from docker.types import Mount

from test.python.docker import Podman
from test.python.docker.compat import common, constant

import tarfile


class TestContainers(unittest.TestCase):
    podman = None  # initialized podman configuration for tests
    service = None  # podman service instance
    topContainerId = ""

    def setUp(self):
        super().setUp()
        self.client = DockerClient(base_url="tcp://127.0.0.1:8080", timeout=15)
        TestContainers.podman.restore_image_from_cache(self.client)
        TestContainers.topContainerId = common.run_top_container(self.client)
        self.assertIsNotNone(TestContainers.topContainerId)

    def tearDown(self):
        common.remove_all_containers(self.client)
        common.remove_all_images(self.client)
        self.client.close()
        return super().tearDown()

    @classmethod
    def setUpClass(cls):
        super().setUpClass()
        TestContainers.podman = Podman()
        TestContainers.service = TestContainers.podman.open(
            "system", "service", "tcp:127.0.0.1:8080", "--time=0"
        )
        # give the service some time to be ready...
        time.sleep(2)

        rc = TestContainers.service.poll()
        if rc is not None:
            raise subprocess.CalledProcessError(rc, "podman system service")

    @classmethod
    def tearDownClass(cls):
        TestContainers.service.terminate()
        stdout, stderr = TestContainers.service.communicate(timeout=0.5)
        if stdout:
            sys.stdout.write("\nContainers Service Stdout:\n" + stdout.decode("utf-8"))
        if stderr:
            sys.stderr.write("\nContainers Service Stderr:\n" + stderr.decode("utf-8"))

        TestContainers.podman.tear_down()
        return super().tearDownClass()

    def test_create_container(self):
        # Run a container with detach mode
        self.client.containers.create(image="alpine", detach=True)
        self.assertEqual(len(self.client.containers.list(all=True)), 2)

    def test_create_network(self):
        net = self.client.networks.create("testNetwork", driver="bridge")
        ctnr = self.client.containers.create(image="alpine", detach=True)

        #  TODO fix when ready
        # This test will not work until all connect|disconnect
        # code is fixed.
        # net.connect(ctnr)

        # nets = self.client.networks.list(greedy=True)
        # self.assertGreaterEqual(len(nets), 1)

        # TODO fix endpoint to include containers
        # for n in nets:
        #     if n.id == "testNetwork":
        #         self.assertEqual(ctnr.id, n.containers)
        # self.assertTrue(False, "testNetwork not found")

    def test_start_container(self):
        # Podman docs says it should give a 304 but returns with no response
        # # Start a already started container should return 304
        # response = self.client.api.start(container=TestContainers.topContainerId)
        # self.assertEqual(error.exception.response.status_code, 304)

        # Create a new container and validate the count
        self.client.containers.create(image=constant.ALPINE, name="container2")
        containers = self.client.containers.list(all=True)
        self.assertEqual(len(containers), 2)

    def test_start_container_with_random_port_bind(self):
        container = self.client.containers.create(
            image=constant.ALPINE,
            name="containerWithRandomBind",
            ports={"1234/tcp": None},
        )
        containers = self.client.containers.list(all=True)
        self.assertTrue(container in containers)

    def test_stop_container(self):
        top = self.client.containers.get(TestContainers.topContainerId)
        self.assertEqual(top.status, "running")

        # Stop a running container and validate the state
        top.stop()
        top.reload()
        self.assertIn(top.status, ("stopped", "exited"))

    def test_kill_container(self):
        top = self.client.containers.get(TestContainers.topContainerId)
        self.assertEqual(top.status, "running")

        # Kill a running container and validate the state
        top.kill()
        top.reload()
        self.assertIn(top.status, ("stopped", "exited"))

    def test_restart_container(self):
        # Validate the container state
        top = self.client.containers.get(TestContainers.topContainerId)
        top.stop()
        top.reload()
        self.assertIn(top.status, ("stopped", "exited"))

        # restart a running container and validate the state
        top.restart()
        top.reload()
        self.assertEqual(top.status, "running")

    def test_remove_container(self):
        # Remove container by ID with force
        top = self.client.containers.get(TestContainers.topContainerId)
        top.remove(force=True)
        self.assertEqual(len(self.client.containers.list()), 0)

    def test_remove_container_without_force(self):
        # Validate current container count
        self.assertEqual(len(self.client.containers.list()), 1)

        # Remove running container should throw error
        top = self.client.containers.get(TestContainers.topContainerId)
        with self.assertRaises(errors.APIError) as error:
            top.remove()
        self.assertEqual(error.exception.response.status_code, 500)

        # Remove container by ID without force
        top.stop()
        top.remove()
        self.assertEqual(len(self.client.containers.list()), 0)

    def test_pause_container(self):
        # Validate the container state
        top = self.client.containers.get(TestContainers.topContainerId)
        self.assertEqual(top.status, "running")

        # Pause a running container and validate the state
        top.pause()
        top.reload()
        self.assertEqual(top.status, "paused")

    def test_pause_stopped_container(self):
        # Stop the container
        top = self.client.containers.get(TestContainers.topContainerId)
        top.stop()

        # Pause exited container should throw error
        with self.assertRaises(errors.APIError) as error:
            top.pause()
        self.assertEqual(error.exception.response.status_code, 500)

    def test_unpause_container(self):
        top = self.client.containers.get(TestContainers.topContainerId)

        # Validate the container state
        top.pause()
        top.reload()
        self.assertEqual(top.status, "paused")

        # Pause a running container and validate the state
        top.unpause()
        top.reload()
        self.assertEqual(top.status, "running")

    def test_list_container(self):
        # Add container and validate the count
        self.client.containers.create(image="alpine", detach=True)
        containers = self.client.containers.list(all=True)
        self.assertEqual(len(containers), 2)

    def test_filters(self):
        self.skipTest("TODO Endpoint does not yet support filters")

        # List container with filter by id
        filters = {"id": TestContainers.topContainerId}
        ctnrs = self.client.containers.list(all=True, filters=filters)
        self.assertEqual(len(ctnrs), 1)

        # List container with filter by name
        filters = {"name": "top"}
        ctnrs = self.client.containers.list(all=True, filters=filters)
        self.assertEqual(len(ctnrs), 1)

    def test_copy_to_container(self):
        ctr: Optional[Container] = None
        vol: Optional[Volume] = None
        try:
            test_file_content = b"Hello World!"
            vol = self.client.volumes.create("test-volume")
            ctr = self.client.containers.create(image="alpine",
                                                detach=True,
                                                command="top",
                                                volumes=["test-volume:/test-volume-read-only:ro"])
            ctr.start()

            buff: IO[bytes] = io.BytesIO()
            with tarfile.open(fileobj=buff, mode="w:") as tf:
                ti: tarfile.TarInfo = tarfile.TarInfo()
                ti.uid = 1042
                ti.gid = 1043
                ti.name = "a.txt"
                ti.path = "a.txt"
                ti.mode = 0o644
                ti.type = tarfile.REGTYPE
                ti.size = len(test_file_content)
                tf.addfile(ti, fileobj=io.BytesIO(test_file_content))

            buff.seek(0)
            ctr.put_archive("/tmp/", buff)
            ret, out = ctr.exec_run(["stat", "-c", "%u:%g", "/tmp/a.txt"])

            self.assertEqual(ret, 0)
            self.assertEqual(out.rstrip(), b'1042:1043', "UID/GID of copied file")

            ret, out = ctr.exec_run(["cat", "/tmp/a.txt"])
            self.assertEqual(ret, 0)
            self.assertEqual(out.rstrip(), test_file_content, "Content of copied file")

            buff.seek(0)
            with self.assertRaises(errors.APIError):
                ctr.put_archive("/test-volume-read-only/", buff)
        finally:
            if ctr is not None:
                ctr.stop()
                ctr.remove()
            if vol is not None:
                vol.remove(force=True)

    def test_mount_preexisting_dir(self):
        dockerfile = (B'FROM quay.io/libpod/alpine:latest\n'
                      B'USER root\n'
                      B'RUN mkdir -p /workspace\n'
                      B'RUN chown 1042:1043 /workspace')
        img: Image
        img, out = self.client.images.build(fileobj=io.BytesIO(dockerfile))
        ctr: Container = self.client.containers.create(image=img.id, detach=True, command="top",
                                                       volumes=["test_mount_preexisting_dir_vol:/workspace"])
        ctr.start()
        ret, out = ctr.exec_run(["stat", "-c", "%u:%g", "/workspace"])
        self.assertEqual(out.rstrip(), b'1042:1043', "UID/GID set in dockerfile")


    def test_non_existant_workdir(self):
        dockerfile = (B'FROM quay.io/libpod/alpine:latest\n'
                      B'USER root\n'
                      B'WORKDIR /workspace/scratch\n'
                      B'RUN touch test')
        img: Image
        img, out = self.client.images.build(fileobj=io.BytesIO(dockerfile))
        ctr: Container = self.client.containers.create(image=img.id, detach=True, command="top",
                                                       volumes=["test_non_existant_workdir:/workspace"])
        ctr.start()
        ret, out = ctr.exec_run(["stat", "/workspace/scratch/test"])
        self.assertEqual(ret, 0, "Working directory created if it doesn't exist")

    def test_mount_rw_by_default(self):
        ctr: Optional[Container] = None
        vol: Optional[Volume] = None
        try:
            vol = self.client.volumes.create("test-volume")
            ctr = self.client.containers.create(image="alpine",
                                                detach=True,
                                                command="top",
                                                mounts=[Mount(target="/vol-mnt",
                                                              source="test-volume",
                                                              type='volume',
                                                              read_only=False)])
            ctr_inspect = self.client.api.inspect_container(ctr.id)
            binds: List[str] = ctr_inspect["HostConfig"]["Binds"]
            self.assertEqual(len(binds), 1)
            self.assertEqual(binds[0], 'test-volume:/vol-mnt:rw,rprivate,nosuid,nodev,rbind')
        finally:
            if ctr is not None:
                ctr.remove()
            if vol is not None:
                vol.remove(force=True)