7、Varnish 配置重载脚本
# vim /usr/local/varnish/sbin/varnish_reload_vcl
#!/bin/bash
#
# reload vcl revisited
# A script that loads new vcl based on data from /usr/local/varnish/etc/varnish.conf
# Ingvar Hagelund <ingvar@redpill-linpro.com>
#
# This is free software, distributed under the standard 2 clause BSD license,
# see the LICENSE file in the Varnish documentation directory
#
# The following environment variables have to be set:
# RELOAD_VCL, VARNISH_VCL_CONF, VARNISH_ADMIN_LISTEN_PORT
# The following are optional:
# VARNISH_SECRET_FILE, VARNISH_ADMIN_LISTEN_ADDRESS
#
# Requires GNU bash and GNU date
#
debug=false
missing() {
echo "Missing configuration variable: $1"
exit 2
}
print_debug() {
echo "
Parsed configuration:
RELOAD_VCL=\"$RELOAD_VCL\"
VARNISH_VCL_CONF=\"$VARNISH_VCL_CONF\"
VARNISH_ADMIN_LISTEN_ADDRESS=\"$VARNISH_ADMIN_LISTEN_ADDRESS\"
VARNISH_ADMIN_LISTEN_PORT=\"$VARNISH_ADMIN_LISTEN_PORT\"
VARNISH_SECRET_FILE=\"$VARNISH_SECRET_FILE\"
"
}
# Read configuration
. /usr/local/varnish/etc/varnish.conf
$debug && print_debug
# Check configuration
if [ ! "$RELOAD_VCL" = "1" ]; then
echo "Error: RELOAD_VCL is not set to 1"
exit 2
elif [ -z "$VARNISH_VCL_CONF" ]; then
echo "Error: VARNISH_VCL_CONF is not set"
exit 2
elif [ ! -s "$VARNISH_VCL_CONF" ]; then
echo "Eror: VCL config $VARNISH_VCL_CONF is unreadable or empty"
exit 2
elif [ -z "$VARNISH_ADMIN_LISTEN_ADDRESS" ]; then
echo "Warning: VARNISH_ADMIN_LISTEN_ADDRESS is not set, using 127.0.0.1"
VARNISH_ADMIN_LISTEN_ADDRESS="127.0.0.1"
elif [ -z "$VARNISH_ADMIN_LISTEN_PORT" ]; then
echo "Error: VARNISH_ADMIN_LISTEN_PORT is not set"
exit 2
#elif [ -z "$VARNISH_SECRET_FILE" ]; then
# echo "Warning: VARNISH_SECRET_FILE is not set"
# secret=""
#elif [ ! -s "$VARNISH_SECRET_FILE" ]; then
# echo "Error: varnish secret file $VARNISH_SECRET_FILE is unreadable or empty"
# exit 2
else
# secret="-S $VARNISH_SECRET_FILE"
echo
fi
# Done parsing, set up command
#VARNISHADM="varnishadm $secret -T $VARNISH_ADMIN_LISTEN_ADDRESS:$VARNISH_ADMIN_LISTEN_PORT"
VARNISHADM="/usr/local/varnish/bin/varnishadm -T $VARNISH_ADMIN_LISTEN_ADDRESS:$VARNISH_ADMIN_LISTEN_PORT"
# Now do the real work
new_config="reload_$(date +%FT%H:%M:%S)"
# Check if we are able to connect at all
if $VARNISHADM vcl.list > /dev/null; then
$debug && echo vcl.list succeeded
else
echo "Unable to run $VARNISHADM vcl.list"
exit 1
fi
if $VARNISHADM vcl.list | awk ' { print $3 } ' | grep -q $new_config; then
echo Trying to use new config $new_config, but that is already in use
exit 2
fi
current_config=$( $VARNISHADM vcl.list | awk ' /^active/ { print $3 } ' )
echo "Loading vcl from $VARNISH_VCL_CONF"
echo "Current running config name is $current_config"
echo "Using new config name $new_config"
if $VARNISHADM vcl.load $new_config $VARNISH_VCL_CONF; then
$debug && echo "$VARNISHADM vcl.load succeded"
else
echo "$VARNISHADM vcl.load failed"
exit 1
fi
if $VARNISHADM vcl.use $new_config; then
$debug && echo "$VARNISHADM vcl.use succeded"
else
echo "$VARNISHADM vcl.use failed"
exit 1
fi
$VARNISHADM vcl.list
echo Done
exit 0
-----------------------------------------------------------------------------------------------------------------------------------------------
8、Varnish启动脚本
# vim /etc/init.d/varnishd
#!/bin/bash
#
# varnish Control the Varnish Cache
#
# chkconfig: - 90 10
# description: Varnish is a high-perfomance HTTP accelerator
# processname: varnishd
# config: /usr/local/varnish/etc/varnish.conf
# PIDFILE: /var/run/varnishd.pid
#
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
BINFILE="/usr/local/varnish/sbin/varnishd"
PROG="varnishd"
RETVAL=0
GFILE="/usr/local/varnish/etc/varnish.conf"
PIDFILE="/var/run/varnish.pid"
LOCKFILE="/var/lock/varnish.lock"
RELOAD_EXEC="/usr/local/varnish/sbin/varnish_reload_vcl"
[[ -e ${GFILE} ]] && . ${GFILE}
start() {
IS_EXIST=`ps -A -oppid,pid,cmd | grep sbin/${PROG} | grep -v grep`
[[ -n "${IS_EXIST}" ]] && echo "The process of ${PROG} has been running." && exit 1
[[ ! -x ${BINFILE} ]] && echo ${BINFILE} has no found && exit 5
[[ ! -f ${GFILE} ]] && echo ${GFILE} has no found && exit 6
echo -n "Starting Varnish Cache......"
ulimit -n ${NFILES:-131072}
ulimit -l ${MEMLOCK:-82000}
ulimit -u ${NPROCS:-unlimited}
if [[ "${DAEMON_OPTS}X" == "X" ]]; then
echo -n "Please setting DAEMON_OPTS options in ${GFILE}"
RETVAL=6
else
VARNISH_CACHE_DIR=`dirname $VARNISH_STORAGE_FILE`
RETVAL=`grep -w '^VARNISH_STORAGE' ${GFILE} | grep malloc`
if [[ "${RETVAL}X" = "X" ]]; then
mkdir -p ${VARNISH_CACHE_DIR} && chown -R nobody:nogroup ${VARNISH_CACHE_DIR}
else
[[ -e ${VARNISH_CACHE_DIR} ]] && rm -rf ${VARNISH_CACHE_DIR}
fi
${BINFILE} -P ${PIDFILE} $DAEMON_OPTS >/dev/null 2>&1
RETVAL=$?
echo
[[ $RETVAL -eq 0 ]] && touch ${LOCKFILE}
fi
return $RETVAL
}
stop() {
echo -n "Stopping Varnish Cache......"
/sbin/killproc -QUIT ${PROG}
RETVAL=$?
echo
[[ $RETVAL -eq 0 ]] && rm -f ${LOCKFILE}
return $RETVAL
}
restart() {
stop
sleep 1
start
}
reload() {
[[ "$RELOAD_VCL" = "1" ]] && $RELOAD_EXEC || restart
RETVAL=$?
echo
return $RETVAL
}
configtest() {
if [[ -f ${GFILE} ]]; then
${BINFILE} -f ${GFILE} -C -n /tmp >/dev/null 2>&1
RETVAL=$?
[[ $? -eq 0 ]] && echo "The syntax is ok." || echo "The syntax is error."
else
RETVAL=$?
echo "The config file: ${GFILE} is no exists."
fi
return $RETVAL
}
case "$1" in
start|stop|restart|reload|configtest)
$1
;;
*)
echo "Usage: $0 {start|stop|restart|reload|configtest}"
exit 2
esac
exit $RETVAL
# chmod +x /etc/init.d/varnishd
# chkconfig --add varnishd
-----------------------------------------------------------------------------------------------------------------------------------------------
9、Varnish服务健康检查脚本
# vim /usr/local/varnish/sbin/check_varnish_health.sh
#!/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin
## varnish启动参数配置文件
VARNISH_CONFIG="/usr/local/varnish/etc/varnish.conf"
IS_DEBUG=false
[[ -e ${VARNISH_CONFIG} ]] && . ${VARNISH_CONFIG}
${IS_DEBUG} && echo "监听地址：${VARNISH_LISTEN_ADDRESS} 监听端口：${VARNISH_LISTEN_PORT}"
LAN_IPADDR=`/sbin/ifconfig eth1 | awk -F ':' '/inet addr/{print $2}' | sed 's/[a-zA-Z ]//g'`
RETVAL=`nmap --system-dns -sT -p ${VARNISH_LISTEN_PORT} ${LAN_IPADDR} | grep open`
[[ -z ${RETVAL} ]] && /sbin/service varnishd restart >/dev/null 2>&1
# crontab -e
*/5 * * * * /usr/local/varnish/sbin/check_varnish_health.sh >/dev/null 2>&1