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How to use get_default_volume_dir_mount method in localstack

Best Python code snippet using localstack_python

docker_utils.py

Source:docker_utils.py

...44    return container_id45def inspect_current_container_mounts() -> List[VolumeInfo]:46    return DOCKER_CLIENT.inspect_container_volumes(get_current_container_id())47@functools.lru_cache()48def get_default_volume_dir_mount() -> Optional[VolumeInfo]:49    """50    Returns the volume information of LocalStack's DEFAULT_VOLUME_DIR (/var/lib/localstack), if mounted,51    else it returns None. If we're not currently in docker a VauleError is raised. in a container, a ValueError is52    raised.53    :return: the volume info of the default volume dir or None54    """55    for volume in inspect_current_container_mounts():56        if volume.destination.rstrip("/") == DEFAULT_VOLUME_DIR:57            return volume58    return None59def get_host_path_for_path_in_docker(path):60    """61    Returns the calculated host location for a given subpath of DEFAULT_VOLUME_DIR inside the localstack container.62    The path **has** to be a subdirectory of DEFAULT_VOLUME_DIR (the dir itself *will not* work).63    :param path: Path to be replaced (subpath of DEFAULT_VOLUME_DIR)64    :return: Path on the host65    """66    if config.LEGACY_DIRECTORIES:67        return re.sub(r"^%s/(.*)$" % config.dirs.tmp, r"%s/\1" % config.dirs.functions, path)68    if config.is_in_docker:69        volume = get_default_volume_dir_mount()70        if volume:71            if volume.type != "bind":72                raise ValueError(73                    f"Mount to {DEFAULT_VOLUME_DIR} needs to be a bind mount for mounting to work"74                )75            if not path.startswith(f"{DEFAULT_VOLUME_DIR}/") and path != DEFAULT_VOLUME_DIR:76                # We should be able to replace something here.77                # if this warning is printed, the usage of this function is probably wrong.78                # Please check if the target path is indeed prefixed by /var/lib/localstack79                # if this happens, mounts may fail80                LOG.warning(81                    "Error while performing automatic host path replacement for path '%s' to source '%s'",82                    path,83                    volume.source,...

test_docker_utils.py

Source:test_docker_utils.py

1from unittest import mock2from localstack.utils.container_utils.container_client import VolumeInfo3from localstack.utils.docker_utils import get_host_path_for_path_in_docker4class TestDockerUtils:5    def test_host_path_for_path_in_docker_windows(self):6        with mock.patch(7            "localstack.utils.docker_utils.get_default_volume_dir_mount"8        ) as get_volume, mock.patch("localstack.config.is_in_docker", True):9            get_volume.return_value = VolumeInfo(10                type="bind",11                source=r"C:\Users\localstack\volume\mount",12                destination="/var/lib/localstack",13                mode="rw",14                rw=True,15                propagation="rprivate",16            )17            result = get_host_path_for_path_in_docker("/var/lib/localstack/some/test/file")18            get_volume.assert_called_once()19            # this path style is kinda weird, but windows will accept it - no need for manual conversion of / to \20            assert result == r"C:\Users\localstack\volume\mount/some/test/file"21    def test_host_path_for_path_in_docker_linux(self):22        with mock.patch(23            "localstack.utils.docker_utils.get_default_volume_dir_mount"24        ) as get_volume, mock.patch("localstack.config.is_in_docker", True):25            get_volume.return_value = VolumeInfo(26                type="bind",27                source="/home/some-user/.cache/localstack/volume",28                destination="/var/lib/localstack",29                mode="rw",30                rw=True,31                propagation="rprivate",32            )33            result = get_host_path_for_path_in_docker("/var/lib/localstack/some/test/file")34            get_volume.assert_called_once()35            assert result == "/home/some-user/.cache/localstack/volume/some/test/file"36    def test_host_path_for_path_in_docker_linux_volume_dir(self):37        with mock.patch(38            "localstack.utils.docker_utils.get_default_volume_dir_mount"39        ) as get_volume, mock.patch("localstack.config.is_in_docker", True):40            get_volume.return_value = VolumeInfo(41                type="bind",42                source="/home/some-user/.cache/localstack/volume",43                destination="/var/lib/localstack",44                mode="rw",45                rw=True,46                propagation="rprivate",47            )48            result = get_host_path_for_path_in_docker("/var/lib/localstack")49            get_volume.assert_called_once()50            assert result == "/home/some-user/.cache/localstack/volume"51    def test_host_path_for_path_in_docker_linux_wrong_path(self):52        with mock.patch(53            "localstack.utils.docker_utils.get_default_volume_dir_mount"54        ) as get_volume, mock.patch("localstack.config.is_in_docker", True):55            get_volume.return_value = VolumeInfo(56                type="bind",57                source="/home/some-user/.cache/localstack/volume",58                destination="/var/lib/localstack",59                mode="rw",60                rw=True,61                propagation="rprivate",62            )63            result = get_host_path_for_path_in_docker("/var/lib/localstacktest")64            get_volume.assert_called_once()65            assert result == "/var/lib/localstacktest"66            result = get_host_path_for_path_in_docker("/etc/some/path")...

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