为 Amazon linux AMI 添加服务启动脚本

Adding a service startup script for Amazon linux AMI

提问by user915745

I am using an Amazon Linux AMI and doing some custom modifications(added an axis2server, etc) on it and saving it as a new AMI. Now what I want to do is when the AMI boots up, start up axis2server(ie.axis2server should automatically start when the instance boots up). For that I used a init script like below and ran the following command:

我正在使用 Amazon Linux AMI 并对其进行一些自定义修改（添加了 axis2server 等）并将其保存为新的 AMI。现在我想要做的是当 AMI 启动时，启动axis2server（即实例启动时axis2server 应该自动启动）。为此，我使用了如下所示的 init 脚本并运行了以下命令：

chkconfig --add axisservice

But when I launch a new instance from my image, the axis2server is not getting started.

但是当我从我的图像启动一个新实例时，axis2server 没有启动。

I just only need to execute the script /home/ec2-user/axis2-1.6.1/bin/axis2server.sh at startup. Am I missing anything here?

我只需要在启动时执行脚本 /home/ec2-user/axis2-1.6.1/bin/axis2server.sh 即可。我在这里错过了什么吗？

#! /bin/sh
# Basic support for IRIX style chkconfig
###
# chkconfig: 235 98 55
# description: Manages the services you are controlling with the chkconfig command
###

case "" in
  start)
        echo -n "Starting axisservice"        
        touch ~/temp.txt
        cd /home/ec2-user/axis2-1.6.1/bin
        ./axis2server.sh &
        echo "."
        ;;
  stop)
        echo -n "Stopping axisservice"
        echo "."
        ;;

  *)
        echo "Usage: /sbin/service axisservice {start|stop}"
        exit 1
esac

exit 0

I went through https://help.ubuntu.com/community/CloudInitas well and it provides a mechanism called User-Data Scripts, where a user can execute a script when launching the script.

我也浏览了https://help.ubuntu.com/community/CloudInit，它提供了一种称为用户数据脚本的机制，用户可以在启动脚本时执行脚本。

$ euca-run-instances --key mykey --user-data-file myscript.sh ami-axxxx

This is a command line option and what I want is something like when I launch the instance through the UI, the script should be started.Therefore, I think the above option can not be used in my case. Please correct me if I am wrong.

这是一个命令行选项，我想要的是当我通过 UI 启动实例时，应该启动脚本。因此，我认为在我的情况下不能使用上述选项。如果我错了，请纠正我。

Thanks, H.

谢谢，H。

回答by Till

I bet the environment is not set(up correctly). This means that I am guessing that your shell script tries to start another program and it's not to be found.

我敢打赌环境没有设置（正确设置）。这意味着我猜测您的 shell 脚本试图启动另一个程序并且找不到它。

So at first, I'd adjust the startpart of your script (current):

所以首先，我会调整start你的脚本部分（当前）：

echo -n "Starting axisservice"        
touch ~/temp.txt
cd /home/ec2-user/axis2-1.6.1/bin
./axis2server.sh &
echo "."

Edited:

编辑：

echo -n "Starting axisservice"        
touch ~/temp.txt
cd /home/ec2-user/axis2-1.6.1/bin
./axis2server.sh
RETVAL=$?
[ $RETVAL -eq 0 ] && echo Success
[ $RETVAL -ne 0 ] && echo Failure
echo "."

So what did I do?

那我做了什么？

• removed &so script waits for your shell script (axis2server.sh) to complete
• checked the return status ($?) of your shell script

• 已删除，&因此脚本等待您的 shell 脚本 (axis2server.sh) 完成
• 检查$?shell 脚本的返回状态 ( )

Further debugging:

进一步调试：

Add set -xto your scripts to enable tracing and log both stderrand stdout.

添加set -x到您的脚本以启用跟踪并记录stderr和stdout.

Questions:

问题：

1. Are you are aware that stop(in your service script) doesn't do anything?
2. touch ~/temp.txtis that supposed to create /root/temp.txt? (I'm guessingroot runs this script.)
3. If none of my suggestions work, can you share axis2server.shand paste stderrand stdout?

1. 您是否知道stop（在您的服务脚本中）不执行任何操作？
2. touch ~/temp.txt那应该创造/root/temp.txt吗？（我猜root 运行这个脚本。）
3. 如果没有我的建议工作，你可以分享axis2server.sh并粘贴stderr和stdout？