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|
#!/bin/bash
#
# check if puppet is running
#
PATH="$PATH:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin"
PID="/var/run/puppet/<%= agent_name %>.pid"
INIT="/etc/init.d/puppet"
LOCKFILE="/var/run/puppet/check-puppetd.pid"
function puppet_start {
sleep `echo $RANDOM/2000*60 | bc`
$INIT start
}
function puppet_restart {
$INIT stop
puppet_start
}
function set_lockfile {
if [ ! -z "$LOCKFILE" ]; then
mkdir -p `dirname $LOCKFILE`
if ( set -o noclobber; echo "$$" > "$LOCKFILE" ) &> /dev/null; then
trap 'unset_lockfile' INT TERM EXIT
else
echo "Could not create lockfile $LOCKFILE, exiting"
exit 1
fi
fi
}
function unset_lockfile {
if [ ! -z "$LOCKFILE" ]; then
rm -f $LOCKFILE || echo "Could not remove lockfile $LOCKFILE"
fi
}
function check_lockfile {
local pid process
if [ ! -z "$LOCKFILE" ] && [ -f "$LOCKFILE" ]; then
pid="`cat $LOCKFILE 2> /dev/null`"
process="`ps --no-headers -o comm $pid`"
# Check lockfile again
if [ -f "$LOCKFILE" ]; then
if [ "$?" == "0" ] && [ "`ps --no-headers -o comm $$`" == "$process" ]; then
echo "Another backup is running for $LOCKFILE, skipping run"
exit
else
echo "Found old lockfile $LOCKFILE, removing it"
unset_lockfile
fi
fi
fi
}
check_lockfile
set_lockfile
if [ "$1" == "restart" ]; then
puppet_restart
elif [ ! -f "$PID" ]; then
puppet_start
else
running="$(ps $(cat $PID) &> /dev/null)"
if [ "$?" != "0" ]; then
puppet_start
fi
fi
unset_lockfile
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