logstash配置白名单决定去哪个index

input {
        kafka {
        bootstrap_servers => "127.0.0.1:9092"
        client_id => "log"
        auto_offset_reset => "latest"
        consumer_threads =>
        decorate_events => true
        topics => ["nginx_access_log_test"]
        codec => "json"
        type => "nginx_log"
   }
      }

filter {
        mutate {
                gsub => ["message", "\\x22", '"']
                gsub => ["message", "\\x09", '']
                }
        json {
                source => "message"
                remove_field=>["message","beat","@version"]
             }

        ruby {
                code => '
                        file = File.open("/usr/local/logstash/config/white.txt", "r")
                        text = file.read
                        file.close

                        if !text.include?(event.get("request_uri")) then
                           event.set("es_flag","")
                        else
                            event.set("es_flag","")
                        end
                        '
             }
         }

output {
        if [es_flag] ==""
        {
             elasticsearch
                {
                    hosts => "127.0.0.1:9200"
                    index => "nginx_access_log_test"
                }

        }
        else
        {
             elasticsearch
                {
                    hosts => "127.0.0.1:9200"
                    index => "nginx_access_log_test2"
                }

        }
        stdout {
                codec => rubydebug
        }
 }

复杂点的生产环境配置：

input{
        kafka {
                bootstrap_servers => "127.0.0.1:9092"
                client_id => "nginxaccesslog"
                auto_offset_reset => "latest"
                consumer_threads =>
                decorate_events => true
                topics => ["nginx_access_log"]
                codec => "json"
                type => "nginx_log"
        }
        kafka {
                bootstrap_servers => "127.0.0.1:9092"
                client_id => "database"
                auto_offset_reset => "latest"
                consumer_threads =>
                decorate_events => true
                topics => ["dsideal_db"]
                codec => "json"
                type => "dsideal_db"
        }
        kafka {
                bootstrap_servers => "127.0.0.1:9092"
                client_id => "devops_real"
                auto_offset_reset => "latest"
                consumer_threads =>
                decorate_events => true
                topics => ["devopsrealinfo"]
                codec => "json"
                type => "devopsrealinfo"
        }
        kafka {
                bootstrap_servers => "127.0.0.1:9092"
                client_id => "devops_base"
                auto_offset_reset => "latest"
                consumer_threads =>
                decorate_events => true
                topics => ["devopsbaseinfo"]
                codec => "json"
                type => "devopsbaseinfo"
        }
}
filter{
        mutate {
                gsub => ["message", "\\x22", '"']
                gsub => ["message", "\\x09", '']
    }
    json {
        source => "message"
        remove_field=>["message","beat","@version","@timestamp"]
    }
        if [type] == "nginx_log" {
                ruby {
                        code => '
                                file = File.open("/usr/local/logstash/config/white.txt", "r")
                                text = file.read
                                file.close

                                if !text.include?(event.get("request_uri")) then
                                        event.set("es_flag","")
                                else
                                        event.set("es_flag","")
                                end

                        '
                }
        }

} 

output {
        if [type] == "nginx_log" {
                if [es_flag] =="" {
                        elasticsearch {
                                hosts => "127.0.0.1:9200"
                                index => "nginx-access-log"
                        }
                }
                else {
                        elasticsearch {
                                hosts => "127.0.0.1:9200"
                                index => "nginx-access-log-other"
                        }
                }
        }
        if [type] == "dsideal_db" {
                elasticsearch {
                        hosts => "127.0.0.1:9200"
                        index => "%{table_name}"
                        document_id => "%{id}"
                }
        }
        if [type] == "devopsbaseinfo" {
                elasticsearch {
                        hosts => "127.0.0.1:9200"
                        index => "devopsbaseinfo"
                        document_id => "%{id}"
                }
        }
        if [type] == "devopsrealinfo" {
                elasticsearch {
                        hosts => "127.0.0.1:9200"
                        index => "devopsrealinfo"
                }
        }
}