Add kratos container

Add Kratos container.

docs/local_dev_remote_kratos.md

@@ -51,7 +51,41 @@ helm get values single-sign-on -n oas > /to/a/path/my_cluster_values.yaml
 helm dep update
 ```
 
-4. Install the single-sign-on helmchart with kratos service
+4. Configure variables
+
+Currently the is a default password configured for postgresql in `values.yaml`.
+It is advised to change this password before installation.
+
+The password can be found at:
+
+```
+postgresql:
+  postgresqlDatabase: kratos
+  postgresqlUsername: kratos
+  postgresqlPassword: ChangeThisPassword
+```
+
+Please make sure it is in sync with the password at
+
+```
+kratos:
+  kratos:
+    config:
+      dsn: postgres://kratos:ChangeThisPassword@single-sign-on-postgresql:5432/kratos
+``` 
+
+Same is true for the SMTP service, this config entry can be found at:
+
+```
+kratos:
+  kratos:
+    config:
+      courier:                                                                   
+        smtp:                                                                    
+          connection_uri: smtps://username:password@smtp.example.com:456/
+```
+
+5. Install the single-sign-on helmchart with kratos service
 
 ```
 cd helmchart/single-sign-on