Set lxc.auto.mount = proc:mixed in unprivilged mode. This ensures that lxc mounts sys and proc/sysrq-trigger as readonly. Signed-off-by: Abin Shahab <ashahab@altiscale.com> (github: ashahab-altiscale) Docker-DCO-1.1-Signed-off-by: Abin Shahab <ashahab@altiscale.com> (github: ashahab-altiscale) Upstream-commit: d821c63e0d5fe2abe10ff885de6298acc4db956e Component: engine