Configure Apache Airflow

Switch to virtual environment where Apache Airflow was installed at Install Apache Airflow and Astronomer Cosmos
```
source airflow_env/bin/activate
```
Configure the listed environment variables to activate the test connection button, preventing the loading of sample DAGs and default connections in Airflow UI.
```
export AIRFLOW__CORE__TEST_CONNECTION=Enabled
export AIRFLOW__CORE__LOAD_EXAMPLES=false
export AIRFLOW__CORE_LOAD_DEFAULT_CONNECTIONS=false
```
Define the path of jaffle_shop project as an environment variable dbt_project_home_dir.
```
export dbt_project_home_dir=$AIRFLOW_HOME/dags/dbt/jaffle_shop
```
Define the path to the virtual environment where dbt-teradata was installed as an environment variable dbt_venv_dir.
```
export dbt_venv_dir=/../../dbt_env/bin/dbt
```
!!! note You might need to change /../../ to the specific path where the dbt_env virtual environment is located.