I've got a PEX generated by Pants, which is getting periodically launched by a launcher of some description, and appears to be bootstrapping itself into a new directory in

/tmp

on every launch. When do PEXes get extracted into

/tmp

, and is there a way to reuse the bootstrap across multiple launches?

I think you can define a fixed location using

PEX_ROOT

https://pex.readthedocs.io/en/v2.1.155/api/vars.html#PEX_ROOT

And if PEX root isn't set, it uses tmp instead of ~/.pex?

You might also need to set

PEX_VENV

To reuse PEX_ROOT https://pex.readthedocs.io/en/v2.1.155/api/vars.html#PEX_ROOT

No, it's a cron job running in a docker container for various reasons

I think it falls back to a temporary directory if the default

~/.pex

path (or whatever it is) isn't writeable. It may log some info about this, although you may need to set

PEX_VERBOSE=1

or something higher to see it

Right. I think I can debug that