Option for rendering non-faulty dags

[BasPH]

Currently a faulty .dag.yaml gives an import error for all dags.

It would be nice to have an option e.g. build_all_airflow_dags(skip_invalid_dags=True) to avoid one bad yaml taking down all DAGs.

[BasPH]

Example:

hello_world_blueprint.py:

from airflow.sdk import TaskGroup

from blueprint import BaseModel, Blueprint
from airflow.providers.standard.operators.python import PythonOperator


class HelloWorldConfig(BaseModel):
    foo: str
    bar: str


class HelloWorldBlueprint(Blueprint[HelloWorldConfig]):

    def render(self, config: HelloWorldConfig) -> TaskGroup:
        with TaskGroup(group_id=self.step_id) as group:
            foo = PythonOperator(task_id="foo", python_callable=lambda: print(config.foo))
            bar = PythonOperator(task_id="bar", python_callable=lambda: print(config.bar))
            foo >> bar
        return group

This template works:

dag_id: example1

steps:
  step1:
    blueprint: hello_world_blueprint
    foo: "Hello"
    bar: "World"

But adding this 2nd template fails, including the first example1 DAG (because missing key bar):

dag_id: example2

steps:
  step1:
    blueprint: hello_world_blueprint
    foo: "Hello"