@task
def extract():
    """Get a list of data"""
    logger = prefect.context.get("logger")
    <http://logger.info|logger.info>('An info message')
    return random.sample(range(1, 100), 5)

@task
def transform(data):
    """Multiply the input by 10"""
    logger = prefect.context.get("logger")
    <http://logger.info|logger.info>('Another info message')
    return [i * 10 for i in data]

@task
def load(data):
    """Print the data to indicate it was received"""
    print("Here's your data: {}".format(data))

schedule = IntervalSchedule(
    start_date=datetime.utcnow() + timedelta(seconds=60),
    interval=timedelta(minutes=5),
)

with Flow('ETL') as flow:
    e = extract()
    t = transform(e)
    l = load(t)

flow.schedule = schedule

daskdev/dask

parser = argparse.ArgumentParser()
    parser.add_argument(
        '--flow', type=str, required=True,
        help='Module path which contains the flow.'
    )
    parser.add_argument(
        '--project', type=str, required=True,
        help='Project name in which to register the flow.'
    )
    parser.add_argument(
        '--image_name', type=str, required=True,
        help='Name of the image which is associated with the storage'
    )
    parser.add_argument(
        '--image_tag', type=str, required=True,
        help='Tag of the image which is associated with the storage'
    )
    parser.add_argument(
        '--env_file_path', type=str,
        help='Json file containing environment variables to be stored in the image'
    )
    parser.add_argument(
        '--python_dependencies', type=str,
        help='List of python packages to be pip installed in the image, separated by comma'
    )
    parser.add_argument(
        '--gcp_project_id', type=str, required=True,
        help='GCP Project name'
    )
    parser.add_argument(
        '--release', type=str, required=True,
        help='Name of GKE Cluster'
    )
    parser.add_argument(
        '--dask_scheduler_address', type=str, required=True,
        help='Scheduler Address of Dask Cluster'
    )
    parser.add_argument(
        '--tls_ca', type=str, required=True,
        help='File path of tls certificate file for authorized access to Dask Cluster'
    )
    parser.add_argument(
        '--tls_key', type=str, required=True,
        help='File path of tls key file for authorized access to Dask Cluster'
    )
    parser.add_argument(
        '--dockerfile', type=str, required=True,
        help='Path to dockerfile for building flow container'
    )

    args = parser.parse_args()

    # get env vars
    envs = {}
    if args.env_file_path:
        with open(args.env_file_path) as f:
            envs = json.load(f)

    # get python dependencies
    # to do: list all packages in values.yaml as ell
    python_dependencies = ["google-cloud-storage",
                           "google-cloud-logging",
                           "hvac",
                           "google-api-core",
                           "snowflake-sqlalchemy",
                           "snowflake-connector-python",
                           "SQLAlchemy",
                           "requests",
                           "ravenpackapi",
                           "pandas",
                           "prefect",
                           "lz4",
                           "fsspec"
                           ]

    if args.python_dependencies:
        python_dependencies.append(args.python_dependencies.split(','))

    flows = [importlib.import_module(i).flow for i in args.flow.split(',')]
    print(f'Listing flows: {flows}')

    storage = Docker(
        image_name=args.image_name,
        image_tag=args.image_tag,
        dockerfile=args.dockerfile,
        registry_url=f'<http://gcr.io/{args.gcp_project_id}/|gcr.io/{args.gcp_project_id}/>',
        env_vars=envs,
        python_dependencies=python_dependencies
    )

    security = Security(tls_ca_file=args.tls_ca,
                        tls_client_cert=args.tls_ca,
                        tls_client_key=args.tls_key,
                        require_encryption=True)

    for flow in flows:
        flow.storage = storage
        flow.environment.executor = DaskExecutor(
            address=args.dask_scheduler_address,
            client_kwargs={'security': security}
        )
        path = storage.add_flow(flow)
        print(f'storing flow {flow.name} at {path} at the image.')

    storage = storage.build()

    # run shell script for updating dask workers w/ prefect flow image
    my_env = dict(os.environ)
    my_env['RELEASE'] = args.release
    my_env['GCP_PROJECT_ID'] = args.gcp_project_id
    my_env['IMAGE_NAME'] = args.image_name
    my_env['IMAGE_TAG'] = args.image_tag

    subprocess.Popen(['./deployment/setup_dask.sh'], env=my_env)

    for flow in flows:
        flow.register(project_name=args.project, build=False)

[2020-11-17 07:27:13+0000] INFO - prefect.CloudTaskRunner | Task 'extract': Starting task run...
[2020-11-17 07:27:13+0000] ERROR - prefect.CloudTaskRunner | Task 'extract': Unexpected error while running task: AttributeError("'FunctionTask' object has no attribute task_run_name. Did you call this object within a function that should have beendecorated with @prefect.task?")
Traceback (most recent call last):
  File "/opt/conda/lib/python3.7/site-packages/prefect/engine/task_runner.py", line 273, in run
    self.set_task_run_name(task_inputs=task_inputs)
  File "/opt/conda/lib/python3.7/site-packages/prefect/engine/cloud/task_runner.py", line 342, in set_task_run_name
    task_run_name = self.task.task_run_name
  File "/opt/conda/lib/python3.7/site-packages/prefect/tasks/core/function.py", line 69, in __getattr__
    f"'FunctionTask' object has no attribute {k}."
AttributeError: 'FunctionTask' object has no attribute task_run_name. Did you call this object within a function that should have beendecorated with @prefect.task?

Failed to set task state with error: ConnectionError(MaxRetryError("HTTPConnectionPool(host='host.docker.internal', port=4200): Max retries exceeded with url: /graphql