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May 24, 2019 02:10
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Ubuntu 18.x: jupyterhub init.d script
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| #!/bin/bash | |
| ### BEGIN INIT INFO | |
| # Provides: jupyterhub | |
| # Required-Start: $local_fs $syslog | |
| # Required-Stop: $local_fs $syslog | |
| # Default-Start: 2 3 4 5 | |
| # Default-Stop: 0 1 6 | |
| # Short-Description: Jupyterhub service | |
| # Description: Place the script as /etc/init.d/jupyterhub | |
| # | |
| ### END INIT INFO | |
| PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin:/opt/anaconda3/bin | |
| DESC="Multi-user server for Jupyter notebooks" | |
| NAME=jupyterhub | |
| LAUNCHDIR=/etc/jupyterhub | |
| DAEMON="$LAUNCHDIR"/jupyterhub.sh | |
| PIDFILE="$LAUNCHDIR"/jupyterhub-run.pid | |
| SCRIPTNAME=/etc/init.d/$NAME | |
| # Exit if the package is not installed | |
| [ -x "$DAEMON" ] || exit 0 | |
| # Load the VERBOSE setting and other rcS variables | |
| . /lib/init/vars.sh | |
| # Define LSB log_* functions. | |
| # Depend on lsb-base (>= 3.2-14) to ensure that this file is present | |
| # and status_of_proc is working. | |
| . /lib/lsb/init-functions | |
| # | |
| # Function that starts the daemon/service | |
| # | |
| do_start() | |
| { | |
| # Return | |
| # 0 if daemon has been started | |
| # 1 if daemon was already running | |
| # 2 if daemon could not be started | |
| start-stop-daemon --start --quiet --name $NAME --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \ | |
| || return 1 | |
| start-stop-daemon --start --background --chdir $LAUNCHDIR --exec $DAEMON \ | |
| || return 2 | |
| } | |
| # | |
| # Function that stops the daemon/service | |
| # | |
| do_stop() | |
| { | |
| # Return | |
| # 0 if daemon has been stopped | |
| # 1 if daemon was already stopped | |
| # 2 if daemon could not be stopped | |
| # other if a failure occurred | |
| start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME | |
| RETVAL="$?" | |
| [ "$RETVAL" = 2 ] && return 2 | |
| # Wait for children to finish too if this is a daemon that forks | |
| # and if the daemon is only ever run from this initscript. | |
| # If the above conditions are not satisfied then add some other code | |
| # that waits for the process to drop all resources that could be | |
| # needed by services started subsequently. A last resort is to | |
| # sleep for some time. | |
| start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON | |
| [ "$?" = 2 ] && return 2 | |
| # Many daemons don't delete their pidfiles when they exit. | |
| rm -f $PIDFILE | |
| return "$RETVAL" | |
| } | |
| # | |
| # Function that sends a SIGHUP to the daemon/service | |
| # | |
| do_reload() { | |
| # | |
| # If the daemon can reload its configuration without | |
| # restarting (for example, when it is sent a SIGHUP), | |
| # then implement that here. | |
| # | |
| start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME | |
| return 0 | |
| } | |
| case "$1" in | |
| start) | |
| [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME" | |
| do_start | |
| case "$?" in | |
| 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;; | |
| 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;; | |
| esac | |
| ;; | |
| stop) | |
| [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME" | |
| do_stop | |
| case "$?" in | |
| 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;; | |
| 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;; | |
| esac | |
| ;; | |
| status) | |
| status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $? | |
| ;; | |
| restart|force-reload) | |
| # | |
| # If the "reload" option is implemented then remove the | |
| # 'force-reload' alias | |
| # | |
| log_daemon_msg "Restarting $DESC" "$NAME" | |
| do_stop | |
| case "$?" in | |
| 0|1) | |
| do_start | |
| case "$?" in | |
| 0) log_end_msg 0 ;; | |
| 1) log_end_msg 1 ;; # Old process is still running | |
| *) log_end_msg 1 ;; # Failed to start | |
| esac | |
| ;; | |
| *) | |
| # Failed to stop | |
| log_end_msg 1 | |
| ;; | |
| esac | |
| ;; | |
| *) | |
| #echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2 | |
| echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2 | |
| exit 3 | |
| ;; | |
| esac | |
| : |
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DAEMON="$LAUNCHDIR"/jupyterhub.sh will would be
#!/bin/bash
/opt/anaconda3/bin/jupyterhub -f /etc/jupyterhub/jupyterhub_config.py 1>/etc/jupyterhub/jhub.log 2>&1 &