Add CloudWatchRemoteLogIO.from_config and register cloudwatch scheme#69816
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Airflow resolves remote task log handlers through provider dispatch on the remote_base_log_folder URL scheme since apache#67056; providers must expose from_config so core and the Task SDK no longer depend on the hardcoded branches in airflow_local_settings.py. This migrates the cloudwatch scheme.
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Why
#67056 decoupled remote logging from the hardcoded branches in
airflow_local_settings.py: core and the Task SDK now resolve the handler via ProvidersManager dispatch on the[logging] remote_base_log_folderURL scheme, instantiating the provider class through a no-argfrom_config()classmethod. This migrates thecloudwatchscheme.What
CloudWatchRemoteLogIO.from_config(), mirroring the legacyairflow_local_settings.pybranch -- parsinglog_group_arnfrom the URL (with a clearValueErrorwhen no ARN can be derived), merging[logging] remote_task_handler_kwargsIO-kwargs, and applyingexpanduseronbase_log_folder, so behavior is unchanged for existing configs.cloudwatchscheme in the amazon get_provider_info.py.Note
A sibling PR migrates the
s3scheme the same way (#69817); whichever merges second needs a trivial rebase of the newremote-logging:section. Iffrom_configraises on a bad config, the shared factory falls back to the legacy path, so this is not a breaking change.Was generative AI tooling used to co-author this PR?