nginx log grok pattenr code example

Example: nginx logstash grok

input {
  beats {
    port => 5044
    host => "0.0.0.0"
  }
}
filter {
  if [fileset][module] == "nginx" {
    if [fileset][name] == "access" {
      grok {
        match => { "message" => ["%{IPORHOST:[nginx][access][remote_ip]} - %{DATA:[nginx][access][user_name]} \[%{HTTPDATE:[nginx][access][time]}\] \"%{WORD:[nginx][access][method]} %{DATA:[nginx][access][url]} HTTP/%{NUMBER:[nginx][access][http_version]}\" %{NUMBER:[nginx][access][response_code]} %{NUMBER:[nginx][access][body_sent][bytes]} \"%{DATA:[nginx][access][referrer]}\" \"%{DATA:[nginx][access][agent]}\""] }
        remove_field => "message"
      }
      mutate {
        add_field => { "read_timestamp" => "%{@timestamp}" }
      }
      date {
        match => [ "[nginx][access][time]", "dd/MMM/YYYY:H:m:s Z" ]
        remove_field => "[nginx][access][time]"
      }
      useragent {
        source => "[nginx][access][agent]"
        target => "[nginx][access][user_agent]"
        remove_field => "[nginx][access][agent]"
      }
      geoip {
        source => "[nginx][access][remote_ip]"
        target => "[nginx][access][geoip]"
      }
    }
    else if [fileset][name] == "error" {
      grok {
        match => { "message" => ["%{DATA:[nginx][error][time]} \[%{DATA:[nginx][error][level]}\] %{NUMBER:[nginx][error][pid]}#%{NUMBER:[nginx][error][tid]}: (\*%{NUMBER:[nginx][error][connection_id]} )?%{GREEDYDATA:[nginx][error][message]}"] }
        remove_field => "message"
      }
      mutate {
        rename => { "@timestamp" => "read_timestamp" }
      }
      date {
        match => [ "[nginx][error][time]", "YYYY/MM/dd H:m:s" ]
        remove_field => "[nginx][error][time]"
      }
    }
  }
}
output {
  elasticsearch {
    hosts => localhost
    manage_template => false
    index => "%{[@metadata][beat]}-%{[@metadata][version]}-%{+YYYY.MM.dd}"
  }
}