Comment by azurelogic

If you want to self-host FaaS, there's OpenWhisk. The problem that I have seen with the whole concept of self-hosted FaaS though is that you lose some of the key benefits of "serverless": no maintenance of underlying systems and pay for exactly what you use. Self-hosted means you have to maintain the underlying systems and you have to pay to keep those servers running 24/7 with sufficient scale to support your usage model. It may make deployment easier once you adapt to it, but it's not really giving you the full benefit.