systemd-rc-local-generator, rc-local.service - Compatibility generator and service to start /etc/rc.local

systemd-rc-local-generator is a generator that checks whether /etc/rc.local exists and is executable, and
       if it is, pulls the rc-local.service unit into the boot process. This unit is responsible for running
       this script during late boot. The script is run after network.target, but in parallel with most other
       regular system services.

       Note that rc-local.service runs with slightly different semantics than the original System V version,
       which was executed "last" in the boot process, which is a concept that does not translate to systemd.

       Also note that rc-local.service is ordered after network.target, which does not mean that the network is
       functional, see systemd.special(7). If the script requires a configured network connection, it may be
       desirable to pull in and order it after network-online.target with a drop-in:

           # /etc/systemd/system/rc-local.service.d/network.conf
           [Unit]
           Wants=network-online.target
           After=network-online.target

       Support for /etc/rc.local is provided for compatibility with specific System V systems only. However, it
       is strongly recommended to avoid using this script today, and instead provide proper unit files with
       appropriate dependencies for any scripts to run during the boot process. Note that the path to the script
       is set at compile time and varies between distributions.

       systemd-rc-local-generator implements systemd.generator(7).

       systemd-rc-local-generator, rc-local.service - Compatibility generator and service to start /etc/rc.local
       during boot

       On systems with SELinux, when creating the file, make sure to set the appropriate context, e.g. with
       "sudorestorecon-v/etc/rc.local".

systemd(1), systemctl(1)

systemd 257.7                                                                      SYSTEMD-RC-LOCAL-GENERATOR(8)

/usr/lib/systemd/system-generators/systemd-rc-local-generator

       rc-local.service