Create nodepool::launcher
Move nodepool-launcher into its own class. This allows us to scale out nodepool-launcher for our feature/zuulv3 effort. Change-Id: I393fa1d8ff080260af772a2f020cca9b9e49b173 Signed-off-by: Paul Belanger <pabelanger@redhat.com>
This commit is contained in:
Paul Belanger
parent
90929f8848
commit
c68c8fcede
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#! /bin/sh
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### BEGIN INIT INFO
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# Provides: nodepool-launcher
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# Required-Start: $remote_fs $syslog
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# Required-Stop: $remote_fs $syslog
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: Nodepool Launcher
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# Description: Trunk gating system
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### END INIT INFO
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# Do NOT "set -e"
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# PATH should only include /usr/* if it runs after the mountnfs.sh script
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PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/bin
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DESC="Nodepool Launcher"
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NAME=nodepool-launcher
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DAEMON=/usr/local/bin/nodepool-launcher
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PIDFILE=/var/run/$NAME/$NAME.pid
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SCRIPTNAME=/etc/init.d/$NAME
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USER=nodepool
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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/$NAME
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# Load the VERBOSE setting and other rcS variables
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. /lib/init/vars.sh
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# Define LSB log_* functions.
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# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
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. /lib/lsb/init-functions
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#
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# Function that starts the daemon/service
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#
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do_start()
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{
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# Return
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# 0 if daemon has been started
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# 1 if daemon was already running
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# 2 if daemon could not be started
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mkdir -p /var/run/$NAME
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chown $USER /var/run/$NAME
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ulimit -n 8192
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start-stop-daemon --start --quiet --pidfile $PIDFILE -c $USER --exec $DAEMON --test > /dev/null \
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|| return 1
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start-stop-daemon --start --quiet --pidfile $PIDFILE -c $USER --exec $DAEMON -- \
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$DAEMON_ARGS -p $PIDFILE \
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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 --signal 9 --pidfile $PIDFILE
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RETVAL="$?"
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[ "$RETVAL" = 2 ] && return 2
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rm -f /var/run/$NAME/*
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return "$RETVAL"
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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_graceful_stop()
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{
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PID=`cat $PIDFILE`
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kill -INT $PID
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# Old nodepoold used USR1
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# New nodepoold ignores it while INT is being handled
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kill -USR1 $PID
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# wait until really stopped
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if [ -n "${PID:-}" ]; then
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i=0
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while kill -0 "${PID:-}" 2> /dev/null; do
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if [ $i -eq '0' ]; then
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echo -n " ... waiting "
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else
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echo -n "."
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fi
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i=$(($i+1))
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sleep 1
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done
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fi
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rm -f /var/run/$NAME/*
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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)
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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_graceful_stop
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do_start
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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: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
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exit 3
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;;
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esac
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:
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@ -0,0 +1,78 @@
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# Copyright 2015 2015 IBM
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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# == Class: nodepool::launcher
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#
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class nodepool::launcher(
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$statsd_host = undef,
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$nodepool_ssh_public_key = undef,
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$launcher_logging_conf_template = 'nodepool/nodepool-launcher.logging.conf.erb',
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) {
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if ! defined(File['/home/nodepool/.ssh']) {
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file { '/home/nodepool/.ssh':
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ensure => directory,
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mode => '0500',
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owner => 'nodepool',
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group => 'nodepool',
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require => User['nodepool'],
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}
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}
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if ($nodepool_ssh_public_key != undef) {
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file { '/home/nodepool/.ssh/id_rsa.pub':
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ensure => present,
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content => $nodepool_ssh_public_key,
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mode => '0644',
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owner => 'nodepool',
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group => 'nodepool',
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require => File['/home/nodepool/.ssh'],
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}
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}
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file { '/etc/init.d/nodepool-launcher':
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ensure => present,
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mode => '0555',
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owner => 'root',
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group => 'root',
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source => 'puppet:///modules/nodepool/nodepool-launcherv3.init',
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}
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file { '/etc/default/nodepool-launcher':
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ensure => present,
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content => template('nodepool/nodepool-launcherv3.default.erb'),
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mode => '0444',
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owner => 'root',
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group => 'root',
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}
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file { '/etc/nodepool/launcher-logging.conf':
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ensure => present,
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mode => '0444',
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owner => 'root',
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group => 'root',
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content => template($launcher_logging_conf_template),
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}
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service { 'nodepool-launcher':
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name => 'nodepool-launcher',
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enable => true,
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hasrestart => true,
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require => [
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File['/etc/init.d/nodepool-launcher'],
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File['/etc/default/nodepool-launcher'],
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File['/etc/nodepool/launcher-logging.conf'],
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],
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}
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}
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@ -0,0 +1,5 @@
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<% if @statsd_host != nil && @statsd_host != "" -%>
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export STATSD_HOST=<%= @statsd_host %>
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export STATSD_PORT=8125
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<% end -%>
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DAEMON_ARGS="-c /etc/nodepool/nodepool.yaml -l /etc/nodepool/launcher-logging.conf"
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