Ideally, an Fn function
should be “hot”. With a hot function, the function
container is started and kept alive to process a series of function
invocations. Hot functions are great because there’s a cost to
starting a container — the Fn server has to pull the image from a
repository if the image isn’t cached locally, start the container,
and typically boot the language runtime inside the container before
it can even start handling function calls. With a hot function you
only...
