如果想把Docker容器内的应用服务随着容器开启时自启动。只需要将服务启动的脚本写在Dockerfile里,然后用Dockerfile重构镜像即可实现:
- 编写应用服务自启动脚本
- 编写Dockerfile
- 重构镜像
- 开启容器
编写服务自启动脚本(dockerd)
(tomcat为例)
#!/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/networkprog="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 3donewhile [ true ]do checkprocess if [[ $chkret -eq "0" ]] then start #nscd -i hosts else echo "Service $prog is running." fi sleep 60doneexit 0
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