I&#x27;ll pile on!<p>Cloud Foundry is another opensource PaaS: <a href="https:&#x2F;&#x2F;www.cloudfoundry.org&#x2F;learn&#x2F;features&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.cloudfoundry.org&#x2F;learn&#x2F;features&#x2F;</a><p>(Disclaimer: I work for Pivotal, which donates the majority of engineering effort to Cloud Foundry)