Add DummyAuthenticator documentation

docs/source/api/auth.rst

@@ -26,3 +26,8 @@ Module: :mod:`jupyterhub.auth`
 
 .. autoconfigurable:: PAMAuthenticator
 
+:class:`DummyAuthenticator`
+---------------------------
+
+.. autoconfigurable:: DummyAuthenticator
+

docs/source/contributing/setup.rst

@@ -116,9 +116,8 @@ Using DummyAuthenticator & SimpleSpawner
 ========================================
 
 To simplify testing of JupyterHub, it’s helpful to use
-`DummyAuthenticator <https://github.com/jupyterhub/dummyauthenticator>`_ 
-instead of the default JupyterHub authenticator and
-`SimpleSpawner <https://github.com/jupyterhub/simplespawner>`_ 
+:class:`~jupyterhub.auth.DummyAuthenticator` instead of the default JupyterHub
+authenticator and `SimpleSpawner <https://github.com/jupyterhub/simplespawner>`_ 
 instead of the default spawner.
 
 There is a sample configuration file that does this in
@@ -127,7 +126,7 @@ configuration:
 
 .. code:: bash
 
-   pip install jupyterhub-simplespawner jupyterhub-dummyauthenticator
+   pip install jupyterhub-simplespawner
    jupyterhub -f testing/jupyterhub_config.py
 
 The default JupyterHub `authenticator

docs/source/getting-started/authenticators-users-basics.md

@@ -95,5 +95,16 @@ popular services:
 A generic implementation, which you can use for OAuth authentication
 with any provider, is also available.
 
+## Use DummyAuthenticator for testing
+
+The :class:`~jupyterhub.auth.DummyAuthenticator` is a simple authenticator that
+allows for any username/password unless if a global password has been set. If
+set, it will allow for any username as long as the correct password is provided.
+To set a global password, add this to the config file:
+
+```python
+c.DummyAuthenticator.password = "some_password"
+```
+
 [PAM]: https://en.wikipedia.org/wiki/Pluggable_authentication_module
 [OAuthenticator]: https://github.com/jupyterhub/oauthenticator

docs/source/reference/authenticators.md

@@ -5,8 +5,8 @@ Hub and single user notebook servers.
 
 ## The default PAM Authenticator
 
-JupyterHub ships only with the default [PAM][]-based Authenticator,
-for logging in with local user accounts via a username and password.
+JupyterHub ships with the default [PAM][]-based Authenticator, for
+logging in with local user accounts via a username and password.
 
 ## The OAuthenticator
 
@@ -34,6 +34,13 @@ popular services:
 A generic implementation, which you can use for OAuth authentication
 with any provider, is also available.
 
+## The Dummy Authenticator
+
+When testing, it may be helpful to use the
+:class:`~jupyterhub.auth.DummyAuthenticator`. This allows for any username and
+password unless if a global password has been set. Once set, any username will
+still be accepted but the correct password will need to be provided.
+
 ## Additional Authenticators
 
 A partial list of other authenticators is available on the