| 文件名称 | 说明 |
| dockfile | docker镜像构建描述文件 |
| start | ews镜像启动脚本 |
| check | ews镜像健康检查脚本 |
制作zookeeper镜像的dockfile如下：
from registry.acs.aliyun.com/open/java7:3.0.0 COPY zookeeper-3.4.6.tar.gz /acs/user/zookeeper-3.4.6.tar.gz RUN cd /acs/user && tar xzf zookeeper-3.4.6.tar.gz && \ rm -fr zookeeper-3.4.6.tar.gz && mv zookeeper-3.4.6 zookeeper && \ echo "export PATH=$PATH:/acs/user/jdk/bin:/acs/user/zookeeper/bin/" >> /root/.bash_profile echo "export PATH=$PATH:/acs/user/jdk/bin:/acs/user/zookeeper/bin/" >> /acs/user/.bash_profile COPY zoo.cfg /acs/user/zookeeper/conf/zoo.cfg COPY zkServer.sh /acs/user/zookeeper/bin/zkServer.sh COPY start /acs/bin/start COPY check /acs/bin/check
start脚本如下：
#!/bin/bash
env_file=/acs/conf/env.properties
if [ -f $env_file ];then
zoo_cfg_file=`cat $env_file |grep -w zk.cfg.file |sed "s/^zk.cfg.file=//" `
if [ "$zoo_cfg_file" != "" ]; then
wget -O /acs/user/zookeeper/conf/zoo.cfg $zoo_cfg_file
fi
fi
echo "################################### Start Zookeeper ###################################"
if [ ! -d "/acs/log" ];then
mkdir -p /acs/log
fi
if [ ! -d "/acs/data" ];then
mkdir -p /acs/data
fi
sh /acs/user/zookeeper/bin/zkServer.sh start-foreground &
if [ $? != 0 ]; then
echo "Start zookeeper failed"
exit 1
fi
echo "Start zookeeper success"
exit 0
check脚本如下
#!/bin/bash
if [ "`ps aux|grep zookeeper|grep -v grep|wc -l`" -eq 0 ];then
echo "failed"
exit 1
fi
echo "success"
exit 0
zoo.cfg文件如下
tickTime=2000 initLimit=10 syncLimit=5 dataDir=/acs/data/zookeeper dataLogDir=/acs/log/ clientPort=2181
zkServer.sh文件如下
if [ "x$JMXLOCALONLY" = "x" ]
then
JMXLOCALONLY=false
fi
if [ "x$JMXDISABLE" = "x" ]
then
echo "JMX enabled by default" >&2
# for some reason these two options are necessary on jdk6 on Ubuntu
# accord to the docs they are not necessary, but otw jconsole cannot
# do a local attach
ZOOMAIN="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.local.only=$JMXLOCALONLY org.apache.zookeeper.server.quorum.QuorumPeerMain"
else
echo "JMX disabled by user request" >&2
ZOOMAIN="org.apache.zookeeper.server.quorum.QuorumPeerMain"
fi
# use POSTIX interface, symlink is followed automatically
ZOOBIN="${BASH_SOURCE-$0}"
ZOOBIN="$(dirname "${ZOOBIN}")"
ZOOBINDIR="$(cd "${ZOOBIN}"; pwd)"
if [ -e "$ZOOBIN/../libexec/zkEnv.sh" ]; then
. "$ZOOBINDIR/../libexec/zkEnv.sh"
else
. "$ZOOBINDIR/zkEnv.sh"
fi
if [ "x$SERVER_JVMFLAGS" != "x" ]
then
JVMFLAGS="$SERVER_JVMFLAGS $JVMFLAGS"
fi
if [ "x$2" != "x" ]
then
ZOOCFG="$ZOOCFGDIR/$2"
fi
# if we give a more complicated path to the config, don't screw around in $ZOOCFGDIR
if [ "x$(dirname "$ZOOCFG")" != "x$ZOOCFGDIR" ]
then
ZOOCFG="$2"
fi
if $cygwin
then
ZOOCFG=`cygpath -wp "$ZOOCFG"`
# cygwin has a "kill" in the shell itself, gets confused
KILL=/bin/kill
else
KILL=kill
fi
echo "Using config: $ZOOCFG" >&2
if [ -z "$ZOOPIDFILE" ]; then
ZOO_DATADIR="$(grep "^[[:space:]]*dataDir" "$ZOOCFG" | sed -e 's/.*=//')"
if [ ! -d "$ZOO_DATADIR" ]; then
mkdir -p "$ZOO_DATADIR"
fi
ZOOPIDFILE="$ZOO_DATADIR/zookeeper_server.pid"
else
# ensure it exists, otw stop will fail
mkdir -p "$(dirname "$ZOOPIDFILE")"
fi
if [ ! -w "$ZOO_LOG_DIR" ] ; then
mkdir -p "$ZOO_LOG_DIR"
fi
_ZOO_DAEMON_OUT="$ZOO_LOG_DIR/zookeeper.out"
case $1 in
start)
echo -n "Starting zookeeper ... "
if [ -f "$ZOOPIDFILE" ]; then
if kill -0 `cat "$ZOOPIDFILE"` > /dev/null 2>&1; then
echo $command already running as process `cat "$ZOOPIDFILE"`.
exit 0
fi
fi
nohup "$JAVA" "-Duser.timezone=Asia/Shanghai" "-Dzookeeper.log.dir=${ZOO_LOG_DIR}" "-Dzookeeper.root.logger=${ZOO_LOG4J_PROP}" \
-cp "$CLASSPATH" $JVMFLAGS $ZOOMAIN "$ZOOCFG" > "$_ZOO_DAEMON_OUT" 2>&1 < /dev/null &
if [ $? -eq 0 ]
then
if /bin/echo -n $! > "$ZOOPIDFILE"
then
sleep 1
echo STARTED
else
echo FAILED TO WRITE PID
exit 1
fi
else
echo SERVER DID NOT START
exit 1
fi
;;
start-foreground)
ZOO_CMD=(exec "$JAVA")
if [ "${ZOO_NOEXEC}" != "" ]; then
ZOO_CMD=("$JAVA")
fi
"${ZOO_CMD[@]}" "-Duser.timezone=Asia/Shanghai" "-Dzookeeper.log.dir=${ZOO_LOG_DIR}" "-Dzookeeper.root.logger=${ZOO_LOG4J_PROP}" \
-cp "$CLASSPATH" $JVMFLAGS $ZOOMAIN "$ZOOCFG"
;;
print-cmd)
echo "\"$JAVA\" -Dzookeeper.log.dir=\"${ZOO_LOG_DIR}\" -Dzookeeper.root.logger=\"${ZOO_LOG4J_PROP}\" -cp \"$CLASSPATH\" $JVMFLAGS $ZOOMAIN \"$ZOOCFG\" > \"$_ZOO_DAEMON_OUT\" 2>&1 < /dev/null"
;;
stop)
echo -n "Stopping zookeeper ... "
if [ ! -f "$ZOOPIDFILE" ]
then
echo "no zookeeper to stop (could not find file $ZOOPIDFILE)"
else
$KILL -9 $(cat "$ZOOPIDFILE")
rm "$ZOOPIDFILE"
echo STOPPED
fi
exit 0
;;
upgrade)
shift
echo "upgrading the servers to 3.*"
"$JAVA" "-Dzookeeper.log.dir=${ZOO_LOG_DIR}" "-Dzookeeper.root.logger=${ZOO_LOG4J_PROP}" \
-cp "$CLASSPATH" $JVMFLAGS org.apache.zookeeper.server.upgrade.UpgradeMain ${@}
echo "Upgrading ... "
;;
restart)
shift
"$0" stop ${@}
sleep 3
"$0" start ${@}
;;
status)
# -q is necessary on some versions of linux where nc returns too quickly, and no stat result is output
clientPortAddress=`grep "^[[:space:]]*clientPortAddress[^[:alpha:]]" "$ZOOCFG" | sed -e 's/.*=//'`
if ! [ $clientPortAddress ]
then
clientPortAddress="localhost"
fi
clientPort=`grep "^[[:space:]]*clientPort[^[:alpha:]]" "$ZOOCFG" | sed -e 's/.*=//'`
STAT=`"$JAVA" "-Dzookeeper.log.dir=${ZOO_LOG_DIR}" "-Dzookeeper.root.logger=${ZOO_LOG4J_PROP}" \
-cp "$CLASSPATH" $JVMFLAGS org.apache.zookeeper.client.FourLetterWordMain \
$clientPortAddress $clientPort srvr 2> /dev/null \
| grep Mode`
if [ "x$STAT" = "x" ]
then
echo "Error contacting service. It is probably not running."
exit 1
else
echo $STAT
exit 0
fi
;;
*)
echo "Usage: $0 {start|start-foreground|stop|restart|status|upgrade|print-cmd}" >&2
esac
