# RHEL 7.4+ specific:
# Unexpected "Device or resource busy" error when removing a directory
# see https://access.redhat.com/articles/3128691 for details
fs.may_detach_mounts=1

# RHEL 7.4+ (and LXD) specific:
# A configuration change was made in the 7.4 release, the default number of user
# namespaces is set to zero, see https://access.redhat.com/solutions/3188102 for
# details. For details about LXD side, see
# https://discuss.linuxcontainers.org/t/lxd-on-centos-7/1250
user.max_user_namespaces=15000