webtry: Add logserver to serve /tmp/glog.
This setup and runs a logserver, like the one being used by skiaperf, to serve the directory /tmp/glog, so we don't need to ssh into the instance to see the logs of the webtry application. This is a follow up to suggestion made in codereview.chromium.org/655323002. BUG=None R=jcgregorio@google.com Review URL: https://codereview.chromium.org/643903003
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@ -40,5 +40,6 @@ git checkout master
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cd experimental/webtry
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go get -u skia.googlesource.com/buildbot.git/perf/go/logserver
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go get -d
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./build
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159
experimental/webtry/setup/sys/logserver_init
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159
experimental/webtry/setup/sys/logserver_init
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@ -0,0 +1,159 @@
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#! /bin/sh
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### BEGIN INIT INFO
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# Provides: logserver
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# Required-Start: $remote_fs $syslog
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# Required-Stop: $remote_fs $syslog
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: Start logserver.
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# Description: Serves the log file directory via HTTP.
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### END INIT INFO
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# Author: Joe Gregorio <jcgregorio@google.com>
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#
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# Copied from /etc/init.d/skeleton and modified only the following
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# environment variables and updated the start-stop-daemon calls
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# in do_start() to add --make-pidfile, --background, and --chuid.
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# Do NOT "set -e"
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# PATH should only include /usr/* if it runs after the mountnfs.sh script
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PATH=/sbin:/usr/sbin:/bin:/usr/bin
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DESC="The Skia WebTry log server application."
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NAME=logserver
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DAEMON=/home/webtry/golib/bin/$NAME
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DAEMON_ARGS="--log_dir=/tmp/glog"
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PIDFILE=/var/run/$NAME.pid
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SCRIPTNAME=/etc/init.d/$NAME
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# Exit if the package is not installed
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[ -x "$DAEMON" ] || exit 0
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# Read configuration variable file if it is present
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[ -r /etc/default/$NAME ] && . /etc/default/$NAME
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# Load the VERBOSE setting and other rcS variables
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. /lib/init/vars.sh
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# Define LSB log_* functions.
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# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
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# and status_of_proc is working.
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. /lib/lsb/init-functions
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#
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# Function that starts the daemon/service
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#
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do_start()
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{
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# Return
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# 0 if daemon has been started
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# 1 if daemon was already running
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# 2 if daemon could not be started
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start-stop-daemon --start --pidfile $PIDFILE --exec $DAEMON --make-pidfile --background --chuid webtry --test > /dev/null \
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|| return 1
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start-stop-daemon --start --pidfile $PIDFILE --exec $DAEMON --make-pidfile --background --chuid webtry --exec $DAEMON -- \
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$DAEMON_ARGS \
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|| return 2
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# Add code here, if necessary, that waits for the process to be ready
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# to handle requests from services started subsequently which depend
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# on this one. As a last resort, sleep for some time.
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}
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#
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# Function that stops the daemon/service
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#
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do_stop()
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{
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# Return
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# 0 if daemon has been stopped
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# 1 if daemon was already stopped
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# 2 if daemon could not be stopped
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# other if a failure occurred
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start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
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RETVAL="$?"
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[ "$RETVAL" = 2 ] && return 2
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# Wait for children to finish too if this is a daemon that forks
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# and if the daemon is only ever run from this initscript.
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# If the above conditions are not satisfied then add some other code
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# that waits for the process to drop all resources that could be
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# needed by services started subsequently. A last resort is to
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# sleep for some time.
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start-stop-daemon --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
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[ "$?" = 2 ] && return 2
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# Many daemons don't delete their pidfiles when they exit.
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rm -f $PIDFILE
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return "$RETVAL"
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}
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#
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# Function that sends a SIGHUP to the daemon/service
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#
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do_reload() {
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#
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# If the daemon can reload its configuration without
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# restarting (for example, when it is sent a SIGHUP),
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# then implement that here.
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#
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start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE --name $NAME
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return 0
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}
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case "$1" in
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start)
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[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
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do_start
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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stop)
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[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
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do_stop
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case "$?" in
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0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
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2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
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esac
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;;
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status)
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status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
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;;
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#reload|force-reload)
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#
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# If do_reload() is not implemented then leave this commented out
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# and leave 'force-reload' as an alias for 'restart'.
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#
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#log_daemon_msg "Reloading $DESC" "$NAME"
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#do_reload
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#log_end_msg $?
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#;;
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restart|force-reload)
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#
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# If the "reload" option is implemented then remove the
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# 'force-reload' alias
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#
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log_daemon_msg "Restarting $DESC" "$NAME"
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do_stop
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case "$?" in
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0|1)
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do_start
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case "$?" in
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0) log_end_msg 0 ;;
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1) log_end_msg 1 ;; # Old process is still running
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*) log_end_msg 1 ;; # Failed to start
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esac
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;;
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*)
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# Failed to stop
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log_end_msg 1
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;;
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esac
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;;
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*)
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#echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
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echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
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exit 3
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;;
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esac
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:
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@ -2,6 +2,10 @@ check process webtry with pidfile /var/run/webtry.pid
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start program = "/etc/init.d/webtry start"
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stop program = "/etc/init.d/webtry stop"
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check process logserver with pidfile /var/run/logserver.pid
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start program = "/etc/init.d/logserver start"
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stop program = "/etc/init.d/logserver stop"
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check process squid3 with pidfile /var/run/squid3.pid
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start program = "/etc/init.d/squid3 start"
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stop program = "/etc/init.d/squid3 stop"
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@ -69,9 +69,11 @@ sudo su - webtry -c /home/webtry/continue_install.sh
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banner "Setting up system initialization scripts"
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sudo cp sys/webtry_init /etc/init.d/webtry
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sudo cp sys/logserver_init /etc/init.d/logserver
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sudo cp sys/webtry_monit /etc/monit/conf.d/webtry
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sudo cp sys/webtry_squid /etc/squid3/squid.conf
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sudo chmod 744 /etc/init.d/webtry
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sudo chmod 744 /etc/init.d/logserver
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# Confirm that monit is happy.
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sudo monit -t
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@ -80,5 +82,6 @@ sudo monit reload
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banner "Restarting webtry server"
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sudo /etc/init.d/webtry restart
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sudo /etc/init.d/logserver restart
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banner "All done!"
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