Logstash：使用环境变量

gpnt7bae 于 2022-12-09 发布在 Logstash

关注(0)|答案(3)|浏览(292)

I have tried to follow the documentation https://www.elastic.co/guide/en/logstash/current/environment-variables.html but it does not seem to work.
I have a bunch of log files to process. Say I have an input file /share/log-2017.09.07.json that I am trying to process with logstash.
An excerpt of my logstash config file is as follows :

input {   file {
     'exclude' => ['*.gz']
     'path' => ["/share/log-${INPUT_DATE}.json"]
     'type' => 'json'
     start_position => "beginning"
     codec  => json
     sincedb_path => "/dev/null"   
  } 
}

I launch logstash as follows :

export INPUT_DATE="2017.09.07"
logstash -f myconfigfile.conf

The logstash does not seem to find the file /share/log-2017.09.03.json. When I replace

'path' => ["/share/log-${INPUT_DATE}.json"]

'path' => ["/share/log-2017.09.07.json"]

it works.
What am I doing wrong ?

logstash

来源：https://stackoverflow.com/questions/46092593/logstash-use-environment-variable

3条答案

按热度按时间

dba5bblo1#

根据https://www.elastic.co/guide/en/logstash/current/environment-variables.html，本文档${var}仅在以下情况下工作。

端口=〉“${TCP端口}”，导出TCP端口=12345
添加标签=〉[“标签1”，“${环境标签}”]，导出环境标签=“标签2”
添加字段=〉{“我的路径”=〉“${HOME}/文件.log”，导出HOME="/路径”

但在您代码中，您在以下位置使用了${var}。'path' =〉["/share/log-${INPUT_DATE}.json”]在此处/log-也必须在变量中。export INPUT_DATE=“log-2017.09.07.json”
根据文档示例，他们将此函数用于少数事件，而不是所有情况。

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ojsjcaue2#

1.[If your logstash is in a docker container]在docker-compose.yml中将变量设置为默认值（仅其名称）：
环境：- 输入日期
1.您需要在同一个命令行会话中运行export INPUT_DATE="2017.09.07"并启动Docker。

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j2datikz3#

未在中定义替换变量INPUT_DATE