feat: add redis ssl support (#65)

api/extensions/ext_redis.py

@@ -1,18 +1,23 @@
 import redis
-
+from redis.connection import SSLConnection, Connection
 
 redis_client = redis.Redis()
 
 
 def init_app(app):
+    connection_class = Connection
+    if app.config.get('REDIS_USE_SSL', False):
+        connection_class = SSLConnection
+
     redis_client.connection_pool = redis.ConnectionPool(**{
         'host': app.config.get('REDIS_HOST', 'localhost'),
         'port': app.config.get('REDIS_PORT', 6379),
+        'username': app.config.get('REDIS_USERNAME', None),
         'password': app.config.get('REDIS_PASSWORD', None),
         'db': app.config.get('REDIS_DB', 0),
         'encoding': 'utf-8',
         'encoding_errors': 'strict',
         'decode_responses': False
-    })
+    }, connection_class=connection_class)
 
     app.extensions['redis'] = redis_client