Docker容器内应用服务自启动的方法示例

#!/bin/bash
#
# 
#
# chkconfig: 345 98 30
# description: tomcat program.
# processname: tomcat
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
#. /etc/sysconfig/network


prog="tomcat"

checkprocess()
{
  chkret=`ps -ef |grep $prog |grep -v "grep" |wc -l`
    return $chkret
}

start()
{
    cd /usr/local/tomcat/bin/
   ./startup.sh
  echo "Service $prog started!"
}

#/usr/sbin/nscd &
/usr/sbin/sshd -D &
while [ true ]
do
        DNSIP=172.18.3.179
          ping=`ping -c 3 $DNSIP|awk 'NR==7 {print $4}'`
        if [[ $ping -eq "3" ]]
        then
            break
        fi
    sleep 3
done

while [ true ]
do
    checkprocess
     if [[ $chkret -eq "0" ]]
        then
              start
     #nscd -i hosts
        else 
          echo "Service $prog is running."

        fi
    sleep 60
done
exit 0

FROM tomcat

MAINTAINER liu "350142639@qq.com"

ADD dockerd /etc/rc.d/init.d/
RUN chmod 777 /etc/rc.d/init.d/dockerd

ENV JAVA_HOME /usr/local/jdk1.6.0_30
ENV PATH   $JAVA_HOME/bin:$PATH
ENV CLASSPATH  .:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

CMD /etc/rc.d/init.d/dockerd