examples/extensibility/tasks/custom_task.py

#
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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
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#
#   http://www.apache.org/licenses/LICENSE-2.0
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from airflow.operators.bash import BashOperator

from liminal.runners.airflow.model import task


class CustomTask(task.Task):
    def custom_task_logic(self):
        hello_world = BashOperator(
            task_id='hello_world',
            bash_command='echo "hello from liminal custom task"',
        )

        if self.parent:
            self.parent.set_downstream(hello_world)

        return hello_world