| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| |
| r""" |
| A tutorial example take you to experience pydolphinscheduler resource plugin. |
| |
| Resource plug-ins can be defined in workflows and tasks |
| |
| it will instantiate and run all the task it have. |
| """ |
| import os |
| from pathlib import Path |
| |
| # [start tutorial_resource_plugin] |
| # [start package_import] |
| # Import Workflow object to define your workflow attributes |
| from pydolphinscheduler.core.workflow import Workflow |
| |
| # Import task Shell object cause we would create some shell tasks later |
| from pydolphinscheduler.resources_plugin.local import Local |
| from pydolphinscheduler.tasks.shell import Shell |
| |
| # [end package_import] |
| |
| # [start workflow_declare] |
| with Workflow( |
| name="tutorial_resource_plugin", |
| schedule="0 0 0 * * ? *", |
| start_time="2021-01-01", |
| resource_plugin=Local("/tmp"), |
| ) as workflow: |
| # [end workflow_declare] |
| # [start task_declare] |
| file = "resource.sh" |
| path = Path("/tmp").joinpath(file) |
| with open(str(path), "w") as f: |
| f.write("echo tutorial resource plugin") |
| task_parent = Shell( |
| name="local-resource-example", |
| command=file, |
| ) |
| print(task_parent.task_params) |
| os.remove(path) |
| # [end task_declare] |
| |
| # [start submit_or_run] |
| workflow.run() |
| # [end submit_or_run] |
| # [end tutorial_resource_plugin] |