filebeat采集多个日志

在使用ELK做日志分析的时候，有时需要一个filebeat采集多个日志，送给ES，或者给logstash做解析。下面举例演示以下filebeat采集messages日志，secure日志，以及nginx日志送给ES或者送给logstash做解析的正确配置方法。

一、filebeat采集日志发送给ES：

1.1、filebeat.yml 配置如下：

filebeat.inputs:
- type: log
  tail_files: true
  scan_frequency: 5s
  backoff: 1s
  max_backoff: 10s
  paths:
      - /usr/local/apache-tomcat-8.0.39/logs/catalina.out
      - /usr/local/apache-tomcat-8.0.39/logs/*.txt
  fields:
    type: tomcat
    ip: 172.16.3.226
  fields_under_root: true

- type: log
  tail_files: true
  scan_frequency: 5s
  backoff: 1s
  max_backoff: 10s
  paths:
      - /var/log/nginx/access.log
  fields:
    type: nginx
    ip: 172.16.3.226
  fields_under_root: true

output.elasticsearch:
  hosts: ["172.16.3.227:9200"]

二、filebeat采集日志发送给logstash（不解析）：

2.1、filebeat.yml 配置如下：

filebeat.inputs:
- type: log
  tail_files: true
  scan_frequency: 5s
  backoff: 1s
  max_backoff: 10s
  paths:
      - /usr/local/apache-tomcat-8.0.39/logs/catalina.out
      - /usr/local/apache-tomcat-8.0.39/logs/*.txt
  fields:
    type: tomcat
    ip: 172.16.3.226
  fields_under_root: true

- type: log
  tail_files: true
  scan_frequency: 5s
  backoff: 1s
  max_backoff: 10s
  paths:
      - /var/log/nginx/access.log
  fields:
    type: nginx
    ip: 172.16.3.226
  fields_under_root: true

output.logstash:
  hosts: ["172.16.3.227:5044"]

2.2、logstash.conf 配置如下（不解析）：

input {
        beats {
                host => '0.0.0.0'
                port => 5044 
        }
}

output{
  if [type] == "tomcat" {
    elasticsearch {
      hosts => ["http://172.16.3.225:9200","http://172.16.3.226:9200"，"http://172.16.3.227:9200"]
      index => "tomcat_log-%{+YYYY.MM.dd}"
    }
  }
  else if [type] == "nginx" {
    elasticsearch {
      hosts => ["http://172.16.3.225:9200","http://172.16.3.226:9200"，"http://172.16.3.227:9200"]
      index => "nginx_log_-%{+YYYY.MM.dd}"
    }
  }

三、filebeat采集日志发送给logstash（解析）：

3.1、filebeat.yml 配置如下：

filebeat.inputs:
- type: log
  tail_files: true
  scan_frequency: 5s
  backoff: 1s
  max_backoff: 10s
  paths:
    - /usr/local/apache-tomcat-8.0.39/logs/catalina.out
    - /usr/local/apache-tomcat-8.0.39/logs/*.txt
  fields:
    type: tomcat
    ip: 172.16.3.226
  fields_under_root: true

- type: log
  tail_files: true
  scan_frequency: 5s
  backoff: 1s
  max_backoff: 10s
  paths:
      - /var/log/nginx/access.log
  fields:
    type: nginx
    ip: 172.16.3.226
  fields_under_root: true

output.logstash:
  hosts: ["172.16.3.227:5044"]

3.2、logstash.conf 配置如下（解析）：

input {
        beats {
                host => '0.0.0.0'
                port => 5044 
        }
}

filter {
 if [type] == "access" {
    grok {
        match => {
            "message" => '(?<clientip>[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}) - (?<user>\S+) \[(?<timestamp>[^ ]+ \+[0-9]+)\] "(?<requesttype>[A-Z]+) (?<requesturl>[^
 ]+) HTTP/\d.\d" (?<status>\d+) (?<bodysize>\d+) "(?<url>\S+)" "[^"]+"'}
#移除不需要的字段
       remove_field => ["message","@version","path"] 
    }
    date {
        match => ["requesttime", "dd/MMM/yyyy:HH:mm:ss Z"]
        target => "@timestamp"
    }
  }
}

output{
  if [type] == "nginx" {
    elasticsearch {
      hosts => ["http://172.16.3.225:9200","http://172.16.3.226:9200"，"http://172.16.3.227:9200"]
      index => "nginx_log-%{+YYYY.MM.dd}"
    }
  }
  else if [type] == "tomcat" {
    elasticsearch {
      hosts => ["http://172.16.3.225:9200","http://172.16.3.226:9200"，"http://172.16.3.227:9200"]
      index => "tomcat_log-%{+YYYY.MM.dd}"
    }
  }
  else if [type] == "access" {
    elasticsearch {
      hosts => ["http://172.16.3.225:9200","http://172.16.3.226:9200"，"http://172.16.3.227:9200"]
      index => "access-%{+YYYY.MM.dd}"
    }
  }
}