astronomer-cosmos: Jinja undefined errors when extracting openlineage events

All my cosmos-generated tasks are failing after the dbt run because of Jinja “undefined” errors during lineage processing. I have lineage disabled with OPENLINEAGE_DISABLED=True env var.

I am using Astro runtime 9.1.0 with dbt in a virtualenv as recommended. This is my Dockerfile:

FROM quay.io/astronomer/astro-runtime:9.1.0

# install dbt into a virtual environment
RUN python -m venv dbt_venv && source dbt_venv/bin/activate && \
    pip install --no-cache-dir dbt-snowflake && deactivate

ENV OPENLINEAGE_DISABLED=True

My model is very simple:

{{ config(materialized = 'table') }}

select
  try_to_timestamp('{{ run_started_at }}') as run_started_at

Everything works fine until the Task starts extracting openlineage data.

Here is the task log:

...normal dbt run above
[2023-10-18, 14:49:11 PDT] {subprocess.py:94} INFO - 21:49:11  Done. PASS=1 WARN=0 ERROR=0 SKIP=0 TOTAL=1
[2023-10-18, 14:49:12 PDT] {subprocess.py:98} INFO - Command exited with return code 0
[2023-10-18, 14:49:12 PDT] {taskinstance.py:1935} ERROR - Task failed with exception
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/cosmos/operators/local.py", line 445, in execute
    self.build_and_run_cmd(context=context, cmd_flags=cmd_flags)
  File "/usr/local/lib/python3.11/site-packages/cosmos/operators/local.py", line 357, in build_and_run_cmd
    result = self.run_command(cmd=dbt_cmd, env=env, context=context)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/cosmos/operators/local.py", line 231, in run_command
    self.calculate_openlineage_events_completes(env, Path(tmp_project_dir))
  File "/usr/local/lib/python3.11/site-packages/cosmos/operators/local.py", line 268, in calculate_openlineage_events_completes
    openlineage_processor = DbtLocalArtifactProcessor(
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openlineage/common/provider/dbt/local.py", line 53, in __init__
    dbt_project = self.load_yaml_with_jinja(
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openlineage/common/provider/dbt/local.py", line 133, in load_yaml_with_jinja
    return self.render_values_jinja(
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openlineage/common/provider/dbt/local.py", line 156, in render_values_jinja
    parsed_dict[key] = cls.render_values_jinja(
                       ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openlineage/common/provider/dbt/local.py", line 156, in render_values_jinja
    parsed_dict[key] = cls.render_values_jinja(
                       ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openlineage/common/provider/dbt/local.py", line 156, in render_values_jinja
    parsed_dict[key] = cls.render_values_jinja(
                       ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/openlineage/common/provider/dbt/local.py", line 166, in render_values_jinja
    return environment.from_string(value).render()  # type: ignore
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/jinja2/environment.py", line 1301, in render
    self.environment.handle_exception()
  File "/usr/local/lib/python3.11/site-packages/jinja2/environment.py", line 936, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 1, in top-level template code
jinja2.exceptions.UndefinedError: 'run_started_at' is undefined

What am I doing wrong?