I would like to build and submit a package to a launchpad Ubuntu reposiory of mine in a nightly cronjob. To this end, I'll have to
the package which by default requires human interaction since the
gpg key used for signing is protected by a password.
The cronjob then also fails with an error message of the type
cannot open /dev/tty
gpg typically uses for the password challenge.
How would I have to set up the system to work around such issues?