Is there a way to run a program in a chroot while still having access to stdin/stdout?
My first attempt was a shell script:
/usr/local/bin/real-app: -------- #!/bin/bash chroot /var/lib/app-root /usr/bin/app $*
Then symlinked it where things expect to see it:
ln -s /usr/local/bin/real-app /usr/local/bin/app
But two issues here. First, the program requires root to run. I can deal with that. But second, there no longer seems to be a connection to STDIN/STDOUT which is how the parent process expects to control this application.
Is there a way to make this work? Do I need to have the app modified so it performs the chroot syscall itself?