OpenRC

::sysinit:/sbin/openrc sysinit
::sysinit:/sbin/openrc boot
::wait:/sbin/openrc default

# Set up a couple of getty's
tty1::respawn:/sbin/getty 38400 tty1
tty2::respawn:/sbin/getty 38400 tty2
tty3::respawn:/sbin/getty 38400 tty3
tty4::respawn:/sbin/getty 38400 tty4
tty5::respawn:/sbin/getty 38400 tty5
tty6::respawn:/sbin/getty 38400 tty6

# Put a getty on the serial port
#ttyS0::respawn:/sbin/getty -L ttyS0 115200 vt100

# Stuff to do for the 3-finger salute
::ctrlaltdel:/sbin/reboot

# Stuff to do before rebooting
::shutdown:/sbin/openrc shutdown

#!/sbin/openrc-run

command="/usr/sbin/ntpd"
pidfile="/run/${RC_SVCNAME}.pid"
command_args="-p ${pidfile}"

command_args_background="--daemon"
# start-stop-daemon --make-pidfile
command_background=true

command_user="user:group"
# ^cap_chown,!cap_setpcap
capabilities="cap-list"
procname="cancd"

# 定义依赖
depend() {
  need net
  use dns logger netmount
  want coolservice
  # provide
}

extra_started_commands="reload"

extra_commands="checkconfig"
checkconfig() {
  #
}

reload() {
  checkconfig || return $?
  ebegin "Reloading ${RC_SVCNAME}"
  start-stop-daemon --signal HUP --pidfile "${pidfile}"
  eend $?
}

# 启动停止检查配置
start_pre() {
  if [ "${RC_CMD}" != "restart" ]; then
    checkconfig || return $?
  fi
}

stop_pre() {
  if [ "${RC_CMD}" = "restart" ]; then
    checkconfig || return $?
  fi
}

start-stop-daemon --start \
  --exec $command \
  ${chroot:+--chroot} $chroot \
  ${directory:+--chdir} $directory \
  ${output_log+--stdout} $output_log \
  ${error_log+--stderr} $error_log \
  ${output_logger:+--stdout-logger \"$output_logger\"} \
  ${error_logger:+--stderr-logger \"$error_logger\"} \
  ${capabilities+--capabilities} "$capabilities" \
  ${secbits:+--secbits} "$secbits" \
  ${no_new_privs:+--no-new-privs} \
  ${procname:+--name} $procname \
  ${pidfile:+--pidfile} $pidfile \
  ${command_user+--user} $command_user \
  ${umask+--umask} $umask \
  $_background $start_stop_daemon_args \
  -- $command_args $command_args_background

supervise-daemon "${RC_SVCNAME}" --start \
  ${retry:+--retry} $retry \
  ${directory:+--chdir} $directory \
  ${chroot:+--chroot} $chroot \
  ${output_log+--stdout} ${output_log} \
  ${error_log+--stderr} $error_log \
  ${output_logger:+--stdout-logger \"$output_logger\"} \
  ${error_logger:+--stderr-logger \"$error_logger\"} \
  ${pidfile:+--pidfile} $pidfile \
  ${respawn_delay:+--respawn-delay} $respawn_delay \
  ${respawn_max:+--respawn-max} $respawn_max \
  ${respawn_period:+--respawn-period} $respawn_period \
  ${healthcheck_delay:+--healthcheck-delay} $healthcheck_delay \
  ${healthcheck_timer:+--healthcheck-timer} $healthcheck_timer \
  ${capabilities+--capabilities} "$capabilities" \
  ${secbits:+--secbits} "$secbits" \
  ${no_new_privs:+--no-new-privs} \
  ${command_user+--user} $command_user \
  ${umask+--umask} $umask \
  ${supervise_daemon_args-${start_stop_daemon_args}} \
  $command \
  -- $command_args $command_args_foreground

for svc in $BOOT_SERVICES; do ln -fs /etc/init.d/$svc /etc/runlevels/boot; done

# 默认 0
respawn_delay=5
# 默认 10
respawn_max=0

# 默认 SIGTERM/5
retry="${TINC_RETRY:-TERM/60/KILL/10}"