anchor.diff:  The configuration file `/var/lib/killbill/kpm.yml` specifies the Kill Bill version (and its plugins) running on the instance. After updating this file with the new version(s), simply execute `$KPM_INSTALL_KB_CMD`, delete the cached directory `/var/lib/tomcat/webapps/ROOT` and restart the instance.
   
   A similar process can be used for Kaui: update `/var/lib/kaui/kpm.yml`, run `$KPM_INSTALL_KAUI_CMD`, delete the cached directory `/var/lib/tomcat/webapps2/ROOT` and restart the instance.
  +
   
   == Installation via CloudFormation
   
  
positive.code: 
  This is also where you can change the default Kill Bill admin credentials: specify `org.killbill.security.shiroResourcePath=/var/lib/killbill/config/shiro.ini` and create the `shiro.ini` file accordingly (see our https://docs.killbill.io/latest/user_management.html[RBAC guide] for more details).
  
  === Upgrade steps
  
  Note: you must switch to the `tomcat` user first in order to upgrade Kill Bill or Kaui (`sudo su - tomcat`).
  
negative.code: Upon success, once the instance is running, Kill Bill is running on port 8443 and Kaui on port 443.
  
  
  You can log-in to Kaui by going to https://<INSTANCE_IP_>:443 (make sure your IP address can address this port, or add it to the security group as needed). Default credentials are: *admin/password*. The first few requests might be a bit slow as Kill Bill initializes itself.
  
  Take a look at our http://docs.killbill.io/latest/getting_started.html#_using_kill_bill_with_kaui[Getting Started] guide for an introduction to Kaui.
  