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38 lines
989 B
Bash
Executable File
38 lines
989 B
Bash
Executable File
#!/bin/bash
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#./entrypoint.sh -h 127.0.0.1 -p 3306,2379,6379 -c '/im/bin/file_server -flagfile=./xx.conf'
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# 1. 编写一个端口探测函数，端口连接不上则循环等待
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# wait_for 127.0.0.1 3306
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wait_for() {
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while ! nc -z $1 $2
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do
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echo "$2 端口连接失败，休眠等待！";
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sleep 1;
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done
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echo "$1:$2 检测成功！";
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}
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# 2. 对脚本运行参数进行解析，获取到ip，port，command
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declare ip
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declare ports
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declare command
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while getopts "h:p:c:" arg
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do
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case $arg in
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h)
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ip=$OPTARG;;
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p)
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ports=$OPTARG;;
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c)
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command=$OPTARG;;
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esac
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done
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# 3. 通过执行脚本进行端口检测
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# ${port //,/ } 针对port中的内容，以空格替换字符串中的, shell中数组--一种以空格间隔的字符串
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for port in ${ports//,/ }
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do
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wait_for $ip $port
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done
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# 4. 执行command
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# eval 对一个字符串进行二次检测，将其当作命令进行执行
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eval $command |