如何从nginx生成JSON日志? [英] How to generate a JSON log from nginx?

问题描述

我正在尝试从nginx生成JSON日志.

I'm trying to generate a JSON log from nginx.

我知道类似这，但是我要记录的某些字段包括用户生成的输入(例如HTTP标头)，需要正确进行转义.

I'm aware of solutions like this one but some of the fields I want to log include user generated input (like HTTP headers) which need to be escaped properly.

我知道2011年10月至2008年5月的Nginx变更日志条目说:

I'm aware of the nginx changelog entries from Oct 2011 and May 2008 that say:

*) Change: now the 0x7F-0x1F characters are escaped as \xXX in an
   access_log.
*) Change: now the 0x00-0x1F, '"' and '\' characters are escaped as \xXX
   in an access_log.

，但这仍然无济于事，因为\xXX在JSON字符串中无效".

but this still doesn't help since \xXX is invalid in a JSON string.

我还查看了具有set_quote_json_str指令的HttpSetMiscModule 模块，但这仅仅是似乎在没有帮助的字符串周围添加\x22.

I've also looked at the HttpSetMiscModule module which has a set_quote_json_str directive, but this just seems to add \x22 around the strings which doesn't help.

是否有其他解决方案可以从nginx以JSON格式登录的想法?

Any idea for other solutions to log in JSON format from nginx?

推荐答案

最后，看来我们可以使用没有任何模块的纯正nginx做到这一点.只需定义:

Finally it looks like we have good way to do this with vanilla nginx without any modules. Just define:

log_format json_combined escape=json
  '{'
    '"time_local":"$time_local",'
    '"remote_addr":"$remote_addr",'
    '"remote_user":"$remote_user",'
    '"request":"$request",'
    '"status": "$status",'
    '"body_bytes_sent":"$body_bytes_sent",'
    '"request_time":"$request_time",'
    '"http_referrer":"$http_referer",'
    '"http_user_agent":"$http_user_agent"'
  '}';

请注意，在Nginx 1.11.8中添加了 escape = json . http://nginx.org/en/docs/http/ngx_http_log_module.html#log_format

Note that escape=json was added in nginx 1.11.8. http://nginx.org/en/docs/http/ngx_http_log_module.html#log_format

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