ObjectStoragePath should be template-able

[fritz-astronomer]

Description

ObjectStoragePath should be able to handle Jinja Templates

Use case/motivation

If I have an operator, that has an ObjectStoragePath argument

class MyOperator(BaseOperator):
  template_fields = ('path',)

  def __init__(path, **kwargs):
    self.path = path
    super().__init__(**kwargs)

and am using it in a DAG, with templating

MyOperator(
  ...,
  path=ObjectStoragePath(
    "s3://my_bucket/foo/{{ ds_nodash }}/file.csv",
    conn_id="s3"
  )
)

Templating didn't seem to work

Related issues

No response

Are you willing to submit a PR?

• [ ] Yes I am willing to submit a PR!

Code of Conduct

• [X] I agree to follow this project's Code of Conduct

[fritz-astronomer]

acc'd to this https://airflow.apache.org/docs/apache-airflow/stable/core-concepts/operators.html#jinja-templating it looks like ObjectStoragePath doesn't have template_fields =

I tried a few things:

ObjectStoragePath.template_fields = (...) doesn't work, because the init field is *args (I tried with args)

I can't do render_template(...) in my operator, I think, because ObjectStoragePath is read-only

[gyli]

The current render_template does not handle the case when value is ObjectStoragePath, and I think it can be added.

As a workaround before it's added, I think you can override render_template in your operator to render and rebuild the path.