Pipelining speeds up the playbook execution. It _can_ have some negative
effects on 'sudo' execution, and specifically requires `requiretty` not
enabled in the sudoers file.
Since this seems (by default) to be the case on debian distributions, I
am trying to switch to pipelining for the time being.
Instead of having the file statically (and plain-text) in the repo
itself, we simply query `pass` for it instead.
Slightly cumbersome syntax since ansible (afaik) does not allow a
similar easy variable-enabled lookup as for become passwords, so we also
whipped it into a justfile to not have to type it each time.
The command line uses cat to receive the password as a 'file' on stdin.