Question

我有两个问题：

：nginx -s reload和pkill -HUP -F nginx.pid
观看Nginx配置文件的最简单方法是什么，在更改时测试配置文件（nginx -t），以及它是否通过重新加载Nginx。可以使用runit还是像Supervisor这样的流程管理器来完成？

Answer 1

至少在Unix上，由于声明代码，“重载”动作和HUP信号都被视为一个

ngx_signal_t  signals[] = {
    { ngx_signal_value(NGX_RECONFIGURE_SIGNAL),
      "SIG" ngx_value(NGX_RECONFIGURE_SIGNAL),
      "reload",
      ngx_signal_handler },

src/os/unix/ngx_process.c中的

。在ngx_signal_handler()中使用相同的comnmon代码

    case ngx_signal_value(NGX_RECONFIGURE_SIGNAL):
        ngx_reconfigure = 1;
        action = ", reconfiguring";
        break;

执行

，准备进行常见的重新配置。

要在修改文件时触发操作，您可以制作crontab并确定检查周期，也可以使用inotifywait。

要确定nginx -t是否出错，请检查bash文件中的返回代码$?

nginx -t
if [ $? -eq 0 ] then;
    nginx -s reload
fi

注意：您也可以使用service nginx reload

（参见返回代码检查示例here）

Answer 2

#!/bin/bash

# NGINX WATCH DAEMON
#
# Author: Devonte
#
# Place file in root of nginx folder: /etc/nginx
# This will test your nginx config on any change and
# if there are no problems it will reload your configuration
# USAGE: sh nginx-watch.sh

# Set NGINX directory
# tar command already has the leading /
dir='etc/nginx'

# Get initial checksum values
checksum_initial=$(tar --strip-components=2 -C / -cf - $dir | md5sum | awk '{print $1}')
checksum_now=$checksum_initial

# Start nginx
nginx

# Daemon that checks the md5 sum of the directory
# ff the sums are different ( a file changed / added / deleted)
# the nginx configuration is tested and reloaded on success
while true
do
    checksum_now=$(tar --strip-components=2 -C / -cf - $dir | md5sum | awk '{print $1}')

    if [ $checksum_initial != $checksum_now ]; then
        echo '[ NGINX ] A configuration file changed. Reloading...'
        nginx -t && nginx -s reload;
    fi

    checksum_initial=$checksum_now

    sleep 2
done

你如何正确地观看和重新加载Nginx conf？

2 个答案: