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a2a3c022b8
The -m/--mount option makes it possible to bind-mount volumes at runtime. The volumes are declared in a local/docker-compose.tmp.yml file. The problem with this approach is when we want to bind-mount a volume to a service which is specific to the dev context. For instance: the "learning" service when the MFE plugin is enabled. In such a case, starting the service triggers a call to `docker-compose stop` in the local context. This call fails because the "learning" service does not exist in the local context. Note that this issue only seems to occur with docker-compose v1. To resolve this issue, we create two additional filters for the dev context, which emulate the behaviour of the local context. With this approach, we convert the -m/--mount arguments right after they are parsed. Because they are parsed just once, we can get rid of the de-duplication logic initially introduced with the COMPOSE_CLI_MOUNTS context. Close #711. Close also https://github.com/overhangio/tutor-mfe/issues/57.
90 lines
3.6 KiB
Python
90 lines
3.6 KiB
Python
import typing as t
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import unittest
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from io import StringIO
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from unittest.mock import patch
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from click.exceptions import ClickException
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from tutor import hooks
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from tutor.commands import compose
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from tutor.commands.local import LocalContext
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class ComposeTests(unittest.TestCase):
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maxDiff = None # Ensure we can see long diffs of YAML files.
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def test_mount_option_parsing(self) -> None:
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param = compose.MountParam()
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self.assertEqual(
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[("lms", "/path/to/edx-platform", "/openedx/edx-platform")],
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param("lms:/path/to/edx-platform:/openedx/edx-platform"),
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)
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self.assertEqual(
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[
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("lms", "/path/to/edx-platform", "/openedx/edx-platform"),
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("cms", "/path/to/edx-platform", "/openedx/edx-platform"),
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],
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param("lms,cms:/path/to/edx-platform:/openedx/edx-platform"),
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)
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self.assertEqual(
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[
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("lms", "/path/to/edx-platform", "/openedx/edx-platform"),
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("cms", "/path/to/edx-platform", "/openedx/edx-platform"),
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],
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param("lms, cms:/path/to/edx-platform:/openedx/edx-platform"),
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)
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self.assertEqual(
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[
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("lms", "/path/to/edx-platform", "/openedx/edx-platform"),
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("lms-worker", "/path/to/edx-platform", "/openedx/edx-platform"),
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],
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param("lms,lms-worker:/path/to/edx-platform:/openedx/edx-platform"),
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)
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with self.assertRaises(ClickException):
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param("lms,:/path/to/edx-platform:/openedx/edx-platform")
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@patch("sys.stdout", new_callable=StringIO)
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def test_compose_local_tmp_generation(self, _mock_stdout: StringIO) -> None:
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"""
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Ensure that docker-compose.tmp.yml is correctly generated.
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"""
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param = compose.MountParam()
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mount_args = (
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# Auto-mounting of edx-platform to lms* and cms*
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param.convert_implicit_form("/path/to/edx-platform"),
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# Manual mounting of some other folder to mfe and lms
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param.convert_explicit_form(
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"mfe,lms:/path/to/something-else:/openedx/something-else"
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),
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)
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# Mount volumes
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compose.mount_tmp_volumes(mount_args, LocalContext(""))
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compose_file: t.Dict[str, t.Any] = hooks.Filters.COMPOSE_LOCAL_TMP.apply({})
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actual_services: t.Dict[str, t.Any] = compose_file["services"]
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expected_services: t.Dict[str, t.Any] = {
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"cms": {"volumes": ["/path/to/edx-platform:/openedx/edx-platform"]},
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"cms-worker": {"volumes": ["/path/to/edx-platform:/openedx/edx-platform"]},
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"lms": {
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"volumes": [
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"/path/to/edx-platform:/openedx/edx-platform",
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"/path/to/something-else:/openedx/something-else",
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]
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},
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"lms-worker": {"volumes": ["/path/to/edx-platform:/openedx/edx-platform"]},
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"mfe": {"volumes": ["/path/to/something-else:/openedx/something-else"]},
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}
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self.assertEqual(actual_services, expected_services)
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compose_jobs_file: t.Dict[
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str, t.Any
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] = hooks.Filters.COMPOSE_LOCAL_JOBS_TMP.apply({})
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actual_jobs_services: t.Dict[str, t.Any] = compose_jobs_file["services"]
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expected_jobs_services: t.Dict[str, t.Any] = {
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"cms-job": {"volumes": ["/path/to/edx-platform:/openedx/edx-platform"]},
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"lms-job": {"volumes": ["/path/to/edx-platform:/openedx/edx-platform"]},
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}
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self.assertEqual(actual_jobs_services, expected_jobs_services)
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