slackbuilder/nix/config/rc.nix
2020-11-30 08:59:41 +01:00

84 lines
1.7 KiB
Nix

#!/bin/sh
# Short-Description: Create lightweight, portable, self-sufficient containers.
# Description:
# Docker is an open-source project to easily create lightweight, portable,
# self-sufficient containers from any application. The same container that a
# developer builds and tests on a laptop can run at scale, in production, on
# VMs, bare metal, OpenStack clusters, public clouds and more.
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin
BASE=nix-daemon
UNSHARE=/usr/bin/unshare
NIX=/usr/bin/$BASE
NIX_PIDFILE=/var/run/$BASE.pid
NIX_LOG=/var/log/nix.log
NIX_OPTS=
if [ -f /etc/default/$BASE ]; then
. /etc/default/$BASE
fi
# Check nix is present
if [ ! -x $NIX ]; then
echo "$NIX not present or not executable"
exit 1
fi
nix_start() {
echo "starting $BASE ..."
if [ -x ${NIX} ]; then
# If there is an old PID file (no nix-daemon running), clean it up:
if [ -r ${NIX_PIDFILE} ]; then
if ! ps axc | grep nix-daemon 1> /dev/null 2> /dev/null ; then
echo "Cleaning up old ${NIX_PIDFILE}."
rm -f ${NIX_PIDFILE}
fi
fi
nohup "${UNSHARE}" -m -- ${NIX} >> ${NIX_LOG} 2>&1 &
echo $! > ${NIX_PIDFILE}
fi
}
# Stop nix:
nix_stop() {
echo "stopping $BASE ..."
# If there is no PID file, ignore this request...
if [ -r ${NIX_PIDFILE} ]; then
kill $(cat ${NIX_PIDFILE})
fi
rm -f ${NIX_PIDFILE}
}
# Restart docker:
nix_restart() {
nix_stop
nix_start
}
case "$1" in
'start')
nix_start
;;
'stop')
nix_stop
;;
'restart')
nix_restart
;;
'status')
if [ -f ${NIX_PIDFILE} ] && ps -o cmd $(cat ${NIX_PIDFILE}) | grep -q $BASE ; then
echo "status of $BASE: running"
else
echo "status of $BASE: stopped"
fi
;;
*)
echo "usage $0 start|stop|restart|status"
esac
exit 0