Comment 1 for bug 1597842

Since I've been looking at interfaces in support of bcc, I looked into this and agree this should be handled in the interfaces for a proper solution. One way to do this would be to allow the .fstab parsing to allow OS/classic mounts somehow instead of just snap mounts, then interfaces could declare what OS/classic mounts to add instead of hard-coding them in snap-confine.

More concretely, rather than unconditionally bind mounting /var/log in snap-confine, the log-observe interface would add an entry to .fstab on interface connect. In this manner, only the snaps that are connected to log-observe get the additional bind mount, which is a cleaner runtime and easier to maintain. The same could be done with /usr/src.

In the meantime for /usr/src however I plan to add /usr/src to the list of OS mounts in snap-confine to unblock the bcc snap, then circle back around and do the above. As such, assigning this bug to me.