kaxil commented on a change in pull request #6863: [AIRFLOW-XXX] add docs 
showing usage of `Connection.get_uri`
URL: https://github.com/apache/airflow/pull/6863#discussion_r360819202
 
 

 ##########
 File path: docs/howto/connection/index.rst
 ##########
 @@ -61,29 +59,167 @@ to the connection you wish to edit in the connection list.
 Modify the connection properties and click the ``Save`` button to save your
 changes.
 
-Creating a Connection with Environment Variables
+Storing a Connection in Environment Variables
 ------------------------------------------------
 
-Connections in Airflow pipelines can be created using environment variables.
-The environment variable needs to have a prefix of ``AIRFLOW_CONN_`` for
-Airflow with the value in a URI format to use the connection properly.
+The environment variable naming convention is ``AIRFLOW_CONN_<conn_id>``, all 
uppercase.
+
+So if your connection id is ``my_prod_db`` then the variable name should be 
``AIRFLOW_CONN_MY_PROD_DB``.
+
+.. note::
+
+    There is only one underscore surrounding ``CONN``.  This is in contrast 
with the way ``airflow.cfg``
+    parameters are stored, where two underscores surround the config section 
name.
+
+The value of this environment variable must use airflow's URI format for 
connections.  See the section
+:ref:`Generating a Connection URI <generating_connection_uri>` for more 
details.
+
+Using .bashrc (or similar)
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+If storing the environment variable in something like ``~/.bashrc``, you would 
add it ike so:
 
 Review comment:
   ```suggestion
   If storing the environment variable in something like ``~/.bashrc``, add it 
as follow:
   ```

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