Add jinja2 template example

dev/dags/example_jinja2_template_dag.py

@@ -0,0 +1,16 @@
+import os
+from pathlib import Path
+
+# The following import is here so Airflow parses this file
+# from airflow import DAG
+import dagfactory
+
+DEFAULT_CONFIG_ROOT_DIR = "/usr/local/airflow/dags/"
+CONFIG_ROOT_DIR = Path(os.getenv("CONFIG_ROOT_DIR", DEFAULT_CONFIG_ROOT_DIR))
+
+config_file = str(CONFIG_ROOT_DIR / "example_jinja2_template_dag.yml")
+example_dag_factory = dagfactory.DagFactory(config_file)
+
+# Creating task dependencies
+example_dag_factory.clean_dags(globals())
+example_dag_factory.generate_dags(globals())

dev/dags/example_jinja2_template_dag.yml

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+example_jinja2_template_dag:
+  default_args:
+    start_date: "2025-01-01"
+  schedule_interval: "@daily"
+  description: "A DAG that uses Airflow's built-in Jinja templates"
+  catchup: false
+  tasks:
+    print_run_id:
+      operator: "airflow.operators.bash.BashOperator"
+      bash_command: "echo 'run-id is {{ run_id }}'"
+
+    print_task:
+      operator: "airflow.operators.bash.BashOperator"
+      bash_command: "echo 'The task is {{ task }}'"
+      dependencies:
+      - print_run_id

docs/configuration/jinja2_template.md

@@ -0,0 +1,9 @@
+# Jinja2 Template
+
+This example shows how to use [Apache Airflow®](https://airflow.apache.org/) built-in Jinja templating within a YAML-based DAG definition using DAG-Factory
+
+## Example DAG
+
+```yaml
+--8<-- "dev/dags/example_jinja2_template_dag.yml"
+```

mkdocs.yml

@@ -53,6 +53,7 @@ nav:
       - configuration/environment_variables.md
       - configuration/defaults.md
       - configuration/params.md
+      - configuration/jinja2_template.md
       - configuration/schedule.md
   - Features:
       - features/dynamic_tasks.md