def test_populate_worker_pod_yaml():
environment = CloudEnvironment()
file_path = os.path.dirname(
prefect.environments.execution.cloud.environment.__file__)
with open(path.join(file_path, "worker_pod.yaml")) as pod_file:
pod = yaml.safe_load(pod_file)
with set_temporary_config({
"cloud.graphql": "gql_test",
"cloud.auth_token": "auth_test"
}):
with prefect.context(flow_run_id="id_test", image="my_image"):
yaml_obj = environment._populate_worker_pod_yaml(yaml_obj=pod)
assert yaml_obj["metadata"]["labels"][
"identifier"] == environment.identifier_label
assert yaml_obj["metadata"]["labels"]["flow_run_id"] == "id_test"
env = yaml_obj["spec"]["containers"][0]["env"]
assert env[0]["value"] == "gql_test"
assert env[1]["value"] == "auth_test"
assert env[2]["value"] == "id_test"
assert yaml_obj["spec"]["containers"][0]["image"] == "my_image"
def test_run_flow(monkeypatch):
environment = CloudEnvironment()
flow_runner = MagicMock()
monkeypatch.setattr(
"prefect.engine.get_default_flow_runner_class",
MagicMock(return_value=flow_runner),
)
monkeypatch.setattr(
"prefect.environments.execution.cloud.environment.sys.exit",
MagicMock())
kube_cluster = MagicMock()
monkeypatch.setattr("dask_kubernetes.KubeCluster", kube_cluster)
with tempfile.TemporaryDirectory() as directory:
with open(os.path.join(directory, "flow_env.prefect"), "w+") as env:
flow = prefect.Flow("test")
flow_path = os.path.join(directory, "flow_env.prefect")
with open(flow_path, "wb") as f:
cloudpickle.dump(flow, f)
with set_temporary_config({"cloud.auth_token": "test"}):
with prefect.context(flow_file_path=os.path.join(
directory, "flow_env.prefect")):
environment.run_flow()
assert flow_runner.call_args[1]["flow"].name == "test"
def test_create_flow_run_job_fails_outside_cluster():
environment = CloudEnvironment()
with pytest.raises(EnvironmentError):
with set_temporary_config({"cloud.auth_token": "test"}):
environment.create_flow_run_job(docker_name="test1/test2:test3",
flow_file_path="test4")
def test_execute(monkeypatch):
environment = CloudEnvironment()
storage = Docker(registry_url="test1", image_name="test2", image_tag="test3")
create_flow_run = MagicMock()
monkeypatch.setattr(
"prefect.environments.CloudEnvironment.create_flow_run_job", create_flow_run
)
environment.execute(storage=storage, flow_location="")
assert create_flow_run.call_args[1]["docker_name"] == "test1/test2:test3"
def test_populate_job_yaml():
environment = CloudEnvironment()
file_path = os.path.dirname(
prefect.environments.execution.cloud.environment.__file__
)
with open(path.join(file_path, "job.yaml")) as job_file:
job = yaml.safe_load(job_file)
with set_temporary_config(
{
"cloud.graphql": "gql_test",
"cloud.log": "log_test",
"cloud.result_handler": "rh_test",
"cloud.auth_token": "auth_test",
}
):
with prefect.context(flow_run_id="id_test", namespace="namespace_test"):
yaml_obj = environment._populate_job_yaml(
yaml_obj=job, docker_name="test1/test2:test3", flow_file_path="test4"
)
assert yaml_obj["metadata"]["name"] == "prefect-dask-job-{}".format(
environment.identifier_label
)
assert yaml_obj["metadata"]["labels"]["identifier"] == environment.identifier_label
assert yaml_obj["metadata"]["labels"]["flow_run_id"] == "id_test"
assert (
yaml_obj["spec"]["template"]["metadata"]["labels"]["identifier"]
== environment.identifier_label
)
env = yaml_obj["spec"]["template"]["spec"]["containers"][0]["env"]
assert env[0]["value"] == "gql_test"
assert env[1]["value"] == "log_test"
assert env[2]["value"] == "rh_test"
assert env[3]["value"] == "auth_test"
assert env[4]["value"] == "id_test"
assert env[5]["value"] == "namespace_test"
assert env[6]["value"] == "test1/test2:test3"
assert env[7]["value"] == "test4"
assert (
yaml_obj["spec"]["template"]["spec"]["containers"][0]["image"]
== "test1/test2:test3"
)
def test_create_flow_run_job(monkeypatch):
environment = CloudEnvironment()
config = MagicMock()
monkeypatch.setattr("kubernetes.config", config)
batchv1 = MagicMock()
monkeypatch.setattr("kubernetes.client",
MagicMock(BatchV1Api=MagicMock(return_value=batchv1)))
with set_temporary_config({"cloud.auth_token": "test"}):
environment.create_flow_run_job(docker_name="test1/test2:test3",
flow_file_path="test4")
assert (batchv1.create_namespaced_job.call_args[1]["body"]["apiVersion"] ==
"batch/v1")
def test_populate_worker_pod_yaml_with_private_registry():
environment = CloudEnvironment(private_registry=True)
file_path = os.path.dirname(
prefect.environments.execution.cloud.environment.__file__)
with open(path.join(file_path, "worker_pod.yaml")) as pod_file:
pod = yaml.safe_load(pod_file)
with set_temporary_config({
"cloud.graphql": "gql_test",
"cloud.auth_token": "auth_test"
}):
with prefect.context(flow_run_id="id_test",
image="my_image",
namespace="foo-man"):
yaml_obj = environment._populate_worker_pod_yaml(yaml_obj=pod)
yaml_obj["spec"]["imagePullSecrets"][0] == dict(name="foo-man-docker")
def test_setup_doesnt_pass_if_private_registry(monkeypatch):
environment = CloudEnvironment(private_registry=True)
config = MagicMock()
monkeypatch.setattr("kubernetes.config", config)
v1 = MagicMock()
v1.list_namespaced_secret.return_value = MagicMock(items=[])
monkeypatch.setattr("kubernetes.client",
MagicMock(CoreV1Api=MagicMock(return_value=v1)))
create_secret = MagicMock()
monkeypatch.setattr(
"prefect.environments.CloudEnvironment._create_namespaced_secret",
create_secret)
with set_temporary_config({"cloud.auth_token": "test"}):
environment.setup(storage=Docker())
assert create_secret.called
def test_create_secret_isnt_called_if_exists(monkeypatch):
environment = CloudEnvironment(private_registry=True)
config = MagicMock()
monkeypatch.setattr("kubernetes.config", config)
secret = MagicMock()
secret.metadata.name = "foo-docker"
v1 = MagicMock()
v1.list_namespaced_secret.return_value = MagicMock(items=[secret])
monkeypatch.setattr("kubernetes.client",
MagicMock(CoreV1Api=MagicMock(return_value=v1)))
create_secret = MagicMock()
monkeypatch.setattr(
"prefect.environments.CloudEnvironment._create_namespaced_secret",
create_secret)
with set_temporary_config({"cloud.auth_token": "test"}):
with prefect.context(namespace="foo"):
environment.setup(storage=Docker())
assert not create_secret.called
def test_run_flow(monkeypatch):
environment = CloudEnvironment()
flow_runner = MagicMock()
monkeypatch.setattr("prefect.engine.FlowRunner", flow_runner)
kube_cluster = MagicMock()
monkeypatch.setattr("dask_kubernetes.KubeCluster", kube_cluster)
with tempfile.TemporaryDirectory() as directory:
with open(os.path.join(directory, "flow_env.prefect"), "w+") as env:
flow = prefect.Flow("test")
flow_path = os.path.join(directory, "flow_env.prefect")
with open(flow_path, "w") as f:
json.dump(flow.serialize(), f)
with set_temporary_config({"cloud.auth_token": "test"}):
with prefect.context(flow_file_path=os.path.join(
directory, "flow_env.prefect")):
environment.run_flow()
assert flow_runner.call_args[1]["flow"].name == "test"
def test_execute_storage_missing_fields():
environment = CloudEnvironment()
with pytest.raises(ValueError):
environment.execute(storage=Docker(), flow_location="")
def test_execute_improper_storage():
environment = CloudEnvironment()
with pytest.raises(TypeError):
environment.execute(storage=Memory(), flow_location="")
def test_setup_cloud_environment_passes():
environment = CloudEnvironment()
environment.setup(storage=Docker())
assert environment
def test_create_cloud_environment_identifier_label():
environment = CloudEnvironment()
assert environment.identifier_label
def test_create_cloud_environment():
environment = CloudEnvironment()
assert environment
assert environment.private_registry is False
assert environment.docker_secret is None
def test_create_cloud_environment():
environment = CloudEnvironment()
assert environment
