import subprocess import sys import time import unittest from docker import DockerClient, errors from test.python.docker import Podman, common, constant 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_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.assertTrue(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)