apparmor: allow receiving of signals from 'podman kill'
In newer kernels, AppArmor will reject attempts to send signals to a
container because the signal originated from outside of that AppArmor
profile. Correct this by allowing all unconfined signals to be received.
@@ -17,6 +17,12 @@ profile {{.Name}} flags=(attach_disconnected,mediate_deleted) {
file,
umount,
+{{if ge .Version 208096}}
+ # Allow signals from privileged profiles and from within the same profile
+ signal (receive) peer=unconfined,
+ signal (send,receive) peer={{.Name}},
+{{end}}
+
deny @{PROC}/* w, # deny write for all files directly in /proc (not in a subdir)
# deny write to files not in /proc/<number>/** or /proc/sys/**
deny @{PROC}/{[^1-9],[^1-9][^0-9],[^1-9s][^0-9y][^0-9s],[^1-9][^0-9][^0-9][^0-9]*}/** w,
