Remove init script in favor of having a default user and password

[se7entyse7en]

Currently, the installation of the sandbox requires running an init script first in order to set user and password. We could remove this step in favor of using a default one.

See context here.

[smacker]

one note: this is still unapproved by product. It makes sense to implement but maybe not merge yet.

[smacker]

Taking into account that sandbox is meant to be used locally we can disable authorization completely.
The user still must be created but we can change auth type and always use admin user.
Here is an example of how to do that:

diff --git a/srcd/superset/superset_config.py b/srcd/superset/superset_config.py
index 2de6b700..1ccb1c1a 100644
--- a/srcd/superset/superset_config.py
+++ b/srcd/superset/superset_config.py
@@ -1,6 +1,7 @@
 import os

 from werkzeug.contrib.cache import RedisCache
+from flask_appbuilder.security.manager import AUTH_REMOTE_USER


 # Helper functions
@@ -17,6 +18,21 @@ def get_env_variable(var_name, default=None):
                         .format(var_name)
             raise EnvironmentError(error_msg)

+# Disable authorization by always using admin user
+
+AUTH_TYPE = AUTH_REMOTE_USER
+
+class RemoteUserMiddleware(object):
+    def __init__(self, app):
+        self.app = app
+
+    def __call__(self, environ, start_response):
+        environ['REMOTE_USER'] = 'admin'
+        return self.app(environ, start_response)
+
+
+ADDITIONAL_MIDDLEWARE = [RemoteUserMiddleware, ]
+
 # Branding

 APP_NAME = 'Source{d}'