Add redis session store

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

support/manifest.yaml

@@ -20,6 +20,9 @@ spec:
           "/etc/glyph/log4rs.yml",
         ]
 
+    - name: redis
+      image: docker.io/library/redis:latest
+
     - name: authelia
       image: docker.io/authelia/authelia:latest
       volumeMounts:
@@ -90,6 +93,10 @@ data:
     authelia:
       user_database: /etc/authelia/users/users.yml
 
+    redis:
+      host: redis
+      port: 6379
+
   log4rs.yml: |
     appenders:
       stdout: