TV4Fun opened a new pull request #5169: [AIRFLOW-3143] Support Auto-Zone in DataprocClusterCreateOperator URL: https://github.com/apache/airflow/pull/5169 Allows you to let GCP decide what zone to put your cluster on by setting zone to `None` or a blank string, making the parameter optional. Per the API spec at https://cloud.google.com/dataproc/docs/reference/rest/v1beta2/ClusterConfig#InstanceGroupConfig, this means that all `machineTypeUri`s have to be in short form. Make sure you have checked _all_ steps below. ### Jira - [ X] My PR addresses the following [Airflow Jira](https://issues.apache.org/jira/browse/AIRFLOW/) issues and references them in the PR title. For example, "\[AIRFLOW-XXX\] My Airflow PR" - https://issues.apache.org/jira/browse/AIRFLOW-3143 - In case you are fixing a typo in the documentation you can prepend your commit with \[AIRFLOW-XXX\], code changes always need a Jira issue. - In case you are proposing a fundamental code change, you need to create an Airflow Improvement Proposal ([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvements+Proposals)). - In case you are adding a dependency, check if the license complies with the [ASF 3rd Party License Policy](https://www.apache.org/legal/resolved.html#category-x). ### Description - [ X ] Here are some details about my PR, including screenshots of any UI changes: Allows you to let GCP decide what zone to put your cluster on by setting zone to `None` or a blank string, making the parameter optional. ### Tests - [ X ] My PR adds the following unit tests __OR__ does not need testing for this extremely good reason: Adds `tests.contrib.operators.test_dataproc_operator.DataprocClusterCreateOperatorTest:test_build_cluster_data_with_auto_zone` ### Commits - [ X ] My commits all reference Jira issues in their subject lines, and I have squashed multiple commits if they address the same issue. In addition, my commits follow the guidelines from "[How to write a good git commit message](http://chris.beams.io/posts/git-commit/)": 1. Subject is separated from body by a blank line 1. Subject is limited to 50 characters (not including Jira issue reference) 1. Subject does not end with a period 1. Subject uses the imperative mood ("add", not "adding") 1. Body wraps at 72 characters 1. Body explains "what" and "why", not "how" ### Documentation - [ X ] In case of new functionality, my PR adds documentation that describes how to use it. - All the public functions and the classes in the PR contain docstrings that explain what it does - If you implement backwards incompatible changes, please leave a note in the [Updating.md](https://github.com/apache/airflow/blob/master/UPDATING.md) so we can assign it to a appropriate release Added a note to the docstring explaining that zone is now optional. ### Code Quality - [ X ] Passes `flake8` Lol, make everything else pass `flake8` first.
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