Zero Downtime Upgrades with Openshift Ansible

OpenShift Ansible’s upgrade process has been designed to leverage the HA capabilities of OpenShift and allow for performing a complete cluster upgrade, without any application outages. Doing so is heavily dependent on the nature of your application as well as the capacity of your cluster. However, this post will cover how we perform upgrades, and demonstrate one without causing downtime for a sample application.
Quelle: OpenShift