Comment 14 for bug 2025978

We've hit this problem as well on the current stable branch, and will be trying to work around it by deploying landscape and dependencies to a separate "landscape" model where we can set the legacy-style proxy settings with limited impact to other apps.

Also, it's worth noting that this issue is kind of "hidden". What I mean is: the charm is effectively broken once the add-apt-repository call fails, yet that just causes a blocked status and it's not until several hooks later that things "really" break. We happened to check "juju show-status-log $unit" and could find the root cause there.