/etc/libvirt/lxc.conf is in libvirt-daemon-system 4.0.0-1ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | # Master configuration file for the LXC driver.
# All settings described here are optional - if omitted, sensible
# defaults are used.
# By default, log messages generated by the lxc controller go to the
# container logfile. It is also possible to accumulate log messages
# from all lxc controllers along with libvirtd's log outputs. In this
# case, the lxc controller will honor either LIBVIRT_LOG_OUTPUTS or
# log_outputs from libvirtd.conf.
#
# This is disabled by default, uncomment below to enable it.
#
#log_with_libvirtd = 1
# The default security driver is SELinux. If SELinux is disabled
# on the host, then the security driver will automatically disable
# itself. If you wish to disable LXC SELinux security driver while
# leaving SELinux enabled for the host in general, then set this
# to 'none' instead.
#
#security_driver = "selinux"
# If set to non-zero, then the default security labeling
# will make guests confined. If set to zero, then guests
# will be unconfined by default. Defaults to 0.
#security_default_confined = 1
# If set to non-zero, then attempts to create unconfined
# guests will be blocked. Defaults to 0.
#security_require_confined = 1
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