import itertools import os import unittest from collections import Counter from datetime import datetime, timezone from test.podman_testcase import PodmanTestCase import podman from podman import FoldedString class TestImages(PodmanTestCase): @classmethod def setUpClass(cls): super().setUpClass() @classmethod def tearDownClass(cls): super().tearDownClass() def setUp(self): self.tmpdir = os.environ['TMPDIR'] self.host = os.environ['PODMAN_HOST'] self.pclient = podman.Client(self.host) self.images = self.loadCache() def tearDown(self): pass def loadCache(self): with podman.Client(self.host) as pclient: self.images = list(pclient.images.list()) self.alpine_image = next( iter([ i for i in self.images if 'docker.io/library/alpine:latest' in i['repoTags'] ] or []), None) return self.images def test_list(self): actual = self.loadCache() self.assertGreaterEqual(len(actual), 2) self.assertIsNotNone(self.alpine_image) @unittest.skip('TODO: missing buildah json file') def test_build(self): path = os.path.join(self.tmpdir, 'ctnr', 'Dockerfile') img, logs = self.pclient.images.build( dockerfile=[path], tags=['alpine-unittest'], ) self.assertIsNotNone(img) self.assertIn('localhost/alpine-unittest:latest', img.repoTags) self.assertLess( podman.datetime_parse(img.created), datetime.now(timezone.utc)) self.assertTrue(logs) def test_create(self): img_details = self.alpine_image.inspect() actual = self.alpine_image.container(command=['sleep', '1h']) self.assertIsNotNone(actual) self.assertEqual(FoldedString(actual.status), 'configured') ctnr = actual.start() self.assertEqual(FoldedString(ctnr.status), 'running') ctnr_details = ctnr.inspect() for e in img_details.config['env']: self.assertIn(e, ctnr_details.config['env']) def test_export(self): path = os.path.join(self.tmpdir, 'alpine_export.tar') target = 'oci-archive:{}:latest'.format(path) actual = self.alpine_image.export(target, False) self.assertTrue(actual) self.assertTrue(os.path.isfile(path)) def test_get(self): actual = self.pclient.images.get(self.alpine_image.id) self.assertEqual(actual, self.alpine_image) def test_history(self): records = [] bucket = Counter() for record in self.alpine_image.history(): self.assertIn(record.id, (self.alpine_image.id, '')) bucket[record.id] += 1 records.append(record) self.assertGreater(bucket[self.alpine_image.id], 0) self.assertEqual(sum(bucket.values()), len(records)) def test_inspect(self): actual = self.alpine_image.inspect() self.assertEqual(actual.id, self.alpine_image.id) def test_push(self): path = '{}/alpine_push'.format(self.tmpdir) target = 'dir:{}'.format(path) self.alpine_image.push(target, tlsverify=False) self.assertTrue(os.path.isfile(os.path.join(path, 'manifest.json'))) self.assertTrue(os.path.isfile(os.path.join(path, 'version'))) def test_tag(self): self.assertEqual(self.alpine_image.id, self.alpine_image.tag('alpine:fubar')) self.loadCache() self.assertIn('localhost/alpine:fubar', self.alpine_image.repoTags) def test_remove(self): before = self.loadCache() # assertRaises doesn't follow the import name :( with self.assertRaises(podman.ErrorOccurred): self.alpine_image.remove() actual = self.alpine_image.remove(force=True) self.assertEqual(self.alpine_image.id, actual) after = self.loadCache() self.assertLess(len(after), len(before)) TestImages.setUpClass() self.loadCache() def test_import_delete_unused(self): before = self.loadCache() # create unused image, so we have something to delete source = os.path.join(self.tmpdir, 'alpine_gold.tar') new_img = self.pclient.images.import_image( source, 'alpine2:latest', 'unittest.test_import', ) after = self.loadCache() self.assertEqual(len(before) + 1, len(after)) self.assertIsNotNone( next(iter([i for i in after if new_img in i['id']] or []), None)) actual = self.pclient.images.delete_unused() self.assertIn(new_img, actual) after = self.loadCache() self.assertGreaterEqual(len(before), len(after)) TestImages.setUpClass() self.loadCache() def test_pull(self): before = self.loadCache() actual = self.pclient.images.pull('prom/busybox:latest') after = self.loadCache() self.assertEqual(len(before) + 1, len(after)) self.assertIsNotNone( next(iter([i for i in after if actual in i['id']] or []), None)) def test_search(self): actual = self.pclient.images.search('alpine', 25) names, length = itertools.tee(actual) for img in names: self.assertIn('alpine', img.name) self.assertTrue(0 < len(list(length)) <= 25) if __name__ == '__main__': unittest.main()