Cloud Foundry is an open source application platform (PaaS) that was migrated from VMware to OpenStack infrastructure in under an hour with less than 30 minutes of downtime. The migration was done to reduce costs by moving from a hosted VMware platform to a self-hosted OpenStack infrastructure, which doubled monthly resources for half the price. Preparation took a week while execution and downtime were brief, and apps and services continued running on the new infrastructure without issue.