ELK集群之logstash（5）

Logstash工作原理

 

Logstash事件处理有三个阶段：inputs → filters → outputs。是一个接收，处理，转发日志的工具。支持系统日志，webserver日志，错误日志，应用日志，总之包括所有可以抛出来的日志类型。

如上图，Logstash的数据处理过程主要包括：Inputs,Filters,Outputs 三部分，另外在Inputs和Outputs中可以使用Codecs对数据格式进行处理。这四个部分均以插件形式存在，用户通过定义pipeline配置文件，设置需要使用的input,filter,output,codec插件，以实现特定的数据采集，数据处理，数据输出等功能 。

Inputs：用于从数据源获取数据，常见的插件如file, syslog, redis, beats 等
Filters：用于处理数据如格式转换，数据派生等，常见的插件如grok, mutate, drop, clone, geoip等
Outputs：用于数据输出，常见的插件如elastcisearch，file, graphite, statsd等
Codecs：Codecs(编码插件)不是一个单独的流程，而是在输入和输出等插件中用于数据转换的模块，用于对数据进行编码处理，常见的插件如json，multiline。Logstash不只是一个input | filter | output 的数据流，而是一个 input | decode | filter | encode | output 的数据流！codec 就是用来 decode、encode 事件的。

Input：输入数据到logstash。

一些常用的输入为：

file：从文件系统的文件中读取，类似于tial -f命令

syslog：在514端口上监听系统日志消息，并根据RFC3164标准进行解析

redis：从redis service中读取

beats：从filebeat中读取

Filters：数据中间处理，对数据进行操作。

一些常用的过滤器为：

grok：解析任意文本数据，Grok 是 Logstash 最重要的插件。它的主要作用就是将文本格式的字符串，转换成为具体的结构化的数据，配合正则表达式使用。内置120多个解析语法。

官方提供的grok表达式：https://github.com/logstash-plugins/logstash-patterns-core/tree/master/patterns
grok在线调试：https://grokdebug.herokuapp.com/

mutate：对字段进行转换。例如对字段进行删除、替换、修改、重命名等。

drop：丢弃一部分events不进行处理。

clone：拷贝 event，这个过程中也可以添加或移除字段。

geoip：添加地理信息(为前台kibana图形化展示使用)

Outputs：outputs是logstash处理管道的最末端组件。一个event可以在处理过程中经过多重输出，但是一旦所有的outputs都执行结束，这个event也就完成生命周期。

一些常见的outputs为：

elasticsearch：可以高效的保存数据，并且能够方便和简单的进行查询。

file：将event数据保存到文件中。

graphite：将event数据发送到图形化组件中，一个很流行的开源存储图形化展示的组件。

Codecs：codecs 是基于数据流的过滤器，它可以作为input，output的一部分配置。Codecs可以帮助你轻松的分割发送过来已经被序列化的数据。

一些常见的codecs：

json：使用json格式对数据进行编码/解码。

multiline：将汇多个事件中数据汇总为一个单一的行。比如：java异常信息和堆栈信息。

logstash安装

Logstash功能
  Logstash主要对日志进行过滤处理，也能用来做日志收集。但日志采集一般不用logstash
  输入支持： 标准输入、文本日志输入等
  输出支持： 标准输出、输出到es等
Logstash的安装
  yum install java-1.8.0-openjdk java-1.8.0-openjdk-devel -y
  yum localinstall logstash-7.6.2.rpm

Logstash的JVM配置文件更新jvm.options 
  -Xms200M
  -Xmx200M

Logstash最简单配置/etc/logstash/conf.d/logstash.conf
input{
  stdin{}
}
output{
  stdout{
    codec=>rubydebug
  }
}

Logstash的启动和测试
  /usr/share/logstash/bin/logstash -f /etc/logstash/conf.d/logstash.conf
  输入字符，查看输出
安装
Logstash读日志文件实战
安装nginx来提供日志输入
  yum install nginx -y

编辑nginx的systemctl配置文件/usr/lib/systemd/system/nginx.service，删除底下
KillSignal=SIGQUIT
TimeoutStopSec=5
KillMode=process
PrivateTmp=true

Logstash收集日志注意点
  默认logstash用logstash用户启动，日志需要给logstash用户读权限
  需要有新日志产生，刚启动老的日志默认不读取

输入读取nginx日志
input {
  file {
    path => "/var/log/nginx/access.log"
  }
}
output{
  stdout{
    codec=>rubydebug
  }
}

Logstash的启动
  systemctl enable logstash
  systemctl restart logstash
  观察日志：/var/log/messages
logstash读取nginx日志
input {
  file {
    path => "/var/log/nginx/access.log"
  }
}
output {
  elasticsearch {
    hosts => ["http://xxx:9200", "http://xxx:9200"]
    user => "elastic"
    password => "sjgpwd"
    index => "sjgnginx-%{+YYYY.MM.dd}"
  }
}

Logstash配置重载，重启Logstash慢
kill -1 pid
logstash将日志输出到es
模拟Nginx日志产生
while true;do 
  curl 127.0.0.1/sjgsjg
  curl 192.168.238.90/sjg666
  sleep 5
done

        Logstash正则提取Nginx日志
为什么需要提取？使用一整行日志无法分析，需要提取单独的字段
  分析哪个IP访问量大
  分析Nginx的响应状态码

Nginx日志格式
  192.168.238.90 - - [01/Aug/2020:14:53:35 +0800] "GET /sjg666 HTTP/1.1" 404 3650 "-" "Chrome xxx" "-"

Nginx日志格式配置
  log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
$remote_addr 访问请求地址
$remote_user nginx登录的用户
$time_local 访问时间
$request 请求的动作 目录 协议
$status 返回状态
$body_bytes_sent 当前请求的字节数
$http_referer 页面的head信息从哪个页面发送的请求
$http_user_agent 使用的代理软件 
$http_x_forwarded_for http真实请求头
nginx日志格式详解

filter glok正则



Nginx日志格式
  192.168.238.90 - - [01/Aug/2020:14:53:35 +0800] "GET /sjg666 HTTP/1.1" 404 3650 "-" "Chrome xxx" "-"



Grok提取利器，需要掌握正则表达式。借助Kibana的Grok工具验证提取
  自写正则提取(建议)
  内置规则提取（简化）：/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-patterns-core-4.1.2/patterns/grok-patterns

Grok自写正则提取语法：(?<字段名>自写正则表达式)
(?<remote_addr>d+.d+.d+.d+)

内置正则提取语法：%{内置正则表达式:字段名}
%{IP:remote_addr} - (%{WORD:remote_user}|-) [%{HTTPDATE:time_local}] "%{WORD:method} %{NOTSPACE:request} HTTP/%{NUMBER}" %{NUMBER:status} %{NUMBER:body_bytes_sent} %{QS} %{QS:http_user_agent}

混合语法提取
(?<remote_addr>d+.d+.d+.d+) - (%{WORD:remote_user}|-) [%{HTTPDATE:time_local}]

普通正则表达式符号
  . 表示任意一个字符，* 表示前面一个字符出现0次或者多次
  [abc]表示中括号内任意一个字符，[^abc]表示非中括号内的字符
  [0-9]表示数字，[a-z]表示小写字母，[A-Z]表示大写字母，[a-zA-Z]表示所有字母，[a-zA-Z0-9]表示所有字母+数字
  [^0-9]表示非数字
  ^xx表示以xx开头，xx$表示以xx结尾
  s表示空白字符，S表示非空白字符，d表示数字

扩展正则表达式，在普通正则基础上再进行扩展
  ?表示前面字符出现0或者1次，+前面字符出现1或者多次
  {a}表示前面字符匹配a次，{a,b}表示前面字符匹配a到b次
  {,b}表示前面字符匹配0次到b次，{a,}前面字符匹配a或a+次
  string1|string2表示匹配string1或者string2








USERNAME [a-zA-Z0-9._-]+
USER %{USERNAME}
EMAILLOCALPART [a-zA-Z][a-zA-Z0-9_.+-=:]+
EMAILADDRESS %{EMAILLOCALPART}@%{HOSTNAME}
INT (?:[+-]?(?:[0-9]+))
BASE10NUM (?<![0-9.+-])(?>[+-]?(?:(?:[0-9]+(?:.[0-9]+)?)|(?:.[0-9]+)))
NUMBER (?:%{BASE10NUM})
BASE16NUM (?<![0-9A-Fa-f])(?:[+-]?(?:0x)?(?:[0-9A-Fa-f]+))
BASE16FLOAT (?<![0-9A-Fa-f.])(?:[+-]?(?:0x)?(?:(?:[0-9A-Fa-f]+(?:.[0-9A-Fa-f]*)?)|(?:.[0-9A-Fa-f]+)))

POSINT (?:[1-9][0-9]*)
NONNEGINT (?:[0-9]+)
WORD w+
NOTSPACE S+
SPACE s*
DATA .*?
GREEDYDATA .*
QUOTEDSTRING (?>(?<!\)(?>"(?>\.|[^\"]+)+"|""|(?>'(?>\.|[^\']+)+')|''|(?>`(?>\.|[^\`]+)+`)|``))
UUID [A-Fa-f0-9]{8}-(?:[A-Fa-f0-9]{4}-){3}[A-Fa-f0-9]{12}
# URN, allowing use of RFC 2141 section 2.3 reserved characters
URN urn:[0-9A-Za-z][0-9A-Za-z-]{0,31}:(?:%[0-9a-fA-F]{2}|[0-9A-Za-z()+,.:=@;$_!*'/?#-])+

# Networking
MAC (?:%{CISCOMAC}|%{WINDOWSMAC}|%{COMMONMAC})
CISCOMAC (?:(?:[A-Fa-f0-9]{4}.){2}[A-Fa-f0-9]{4})
WINDOWSMAC (?:(?:[A-Fa-f0-9]{2}-){5}[A-Fa-f0-9]{2})
COMMONMAC (?:(?:[A-Fa-f0-9]{2}:){5}[A-Fa-f0-9]{2})
IPV4 (?<![0-9])(?:(?:[0-1]?[0-9]{1,2}|2[0-4][0-9]|25[0-5])[.](?:[0-1]?[0-9]{1,2}|2[0-4][0-9]|25[0-5])[.](?:[0-1]?[0-9]{1,2}|2[0-4][0-9]|25[0-5])[.](?:[0-1]?[0-9]{1,2}|2[0-4][0-9]|25[0-5]))(?![0-9])
IP (?:%{IPV6}|%{IPV4})
HOSTNAME (?:[0-9A-Za-z][0-9A-Za-z-]{0,62})(?:.(?:[0-9A-Za-z][0-9A-Za-z-]{0,62}))*(.?|)
IPORHOST (?:%{IP}|%{HOSTNAME})
HOSTPORT %{IPORHOST}:%{POSINT}

# paths
PATH (?:%{UNIXPATH}|%{WINPATH})
UNIXPATH (/([w_%!$@:.,+~-]+|\.)*)+
TTY (?:/dev/(pts|tty([pq])?)(w+)?/?(?:[0-9]+))
WINPATH (?>[A-Za-z]+:|\)(?:\[^\?*]*)+
URIPROTO [A-Za-z]([A-Za-z0-9+-.]+)+
URIHOST %{IPORHOST}(?::%{POSINT:port})?
# uripath comes loosely from RFC1738, but mostly from what Firefox
# doesn't turn into %XX
URIPATH (?:/[A-Za-z0-9$.+!*'(){},~:;=@#%&_-]*)+
#URIPARAM ?(?:[A-Za-z0-9]+(?:=(?:[^&]*))?(?:&(?:[A-Za-z0-9]+(?:=(?:[^&]*))?)?)*)?
URIPARAM ?[A-Za-z0-9$.+!*'|(){},~@#%&/=:;_?-[]<>]*
URIPATHPARAM %{URIPATH}(?:%{URIPARAM})?
URI %{URIPROTO}://(?:%{USER}(?::[^@]*)?@)?(?:%{URIHOST})?(?:%{URIPATHPARAM})?

# Months: January, Feb, 3, 03, 12, December
MONTH (?:[Jj]an(?:uary|uar)?|[Ff]eb(?:ruary|ruar)?|[Mm](?:a|ä)?r(?:ch|z)?|[Aa]pr(?:il)?|[Mm]a(?:y|i)?|[Jj]un(?:e|i)?|[Jj]ul(?:y)?|[Aa]ug(?:ust)?|[Ss]ep(?:tember)?|[Oo](?:c|k)?t(?:ober)?|[Nn]ov(?:ember)?|[Dd]e(?:c|z)(?:ember)?)
MONTHNUM (?:0?[1-9]|1[0-2])
MONTHNUM2 (?:0[1-9]|1[0-2])
MONTHDAY (?:(?:0[1-9])|(?:[12][0-9])|(?:3[01])|[1-9])

# Days: Monday, Tue, Thu, etc...
DAY (?:Mon(?:day)?|Tue(?:sday)?|Wed(?:nesday)?|Thu(?:rsday)?|Fri(?:day)?|Sat(?:urday)?|Sun(?:day)?)

# Years?
YEAR (?>dd){1,2}
HOUR (?:2[0123]|[01]?[0-9])
MINUTE (?:[0-5][0-9])
# '60' is a leap second in most time standards and thus is valid.
SECOND (?:(?:[0-5]?[0-9]|60)(?:[:.,][0-9]+)?)
TIME (?!<[0-9])%{HOUR}:%{MINUTE}(?::%{SECOND})(?![0-9])
# datestamp is YYYY/MM/DD-HH:MM:SS.UUUU (or something like it)
DATE_US %{MONTHNUM}[/-]%{MONTHDAY}[/-]%{YEAR}
DATE_EU %{MONTHDAY}[./-]%{MONTHNUM}[./-]%{YEAR}
ISO8601_TIMEZONE (?:Z|[+-]%{HOUR}(?::?%{MINUTE}))
ISO8601_SECOND (?:%{SECOND}|60)
TIMESTAMP_ISO8601 %{YEAR}-%{MONTHNUM}-%{MONTHDAY}[T ]%{HOUR}:?%{MINUTE}(?::?%{SECOND})?%{ISO8601_TIMEZONE}?
DATE %{DATE_US}|%{DATE_EU}
DATESTAMP %{DATE}[- ]%{TIME}
TZ (?:[APMCE][SD]T|UTC)
DATESTAMP_RFC822 %{DAY} %{MONTH} %{MONTHDAY} %{YEAR} %{TIME} %{TZ}
DATESTAMP_RFC2822 %{DAY}, %{MONTHDAY} %{MONTH} %{YEAR} %{TIME} %{ISO8601_TIMEZONE}
DATESTAMP_OTHER %{DAY} %{MONTH} %{MONTHDAY} %{TIME} %{TZ} %{YEAR}
DATESTAMP_EVENTLOG %{YEAR}%{MONTHNUM2}%{MONTHDAY}%{HOUR}%{MINUTE}%{SECOND}

# Syslog Dates: Month Day HH:MM:SS
SYSLOGTIMESTAMP %{MONTH} +%{MONTHDAY} %{TIME}
PROG [x21-x5ax5cx5e-x7e]+
SYSLOGPROG %{PROG:program}(?:[%{POSINT:pid}])?
SYSLOGHOST %{IPORHOST}
SYSLOGFACILITY <%{NONNEGINT:facility}.%{NONNEGINT:priority}>
HTTPDATE %{MONTHDAY}/%{MONTH}/%{YEAR}:%{TIME} %{INT}

# Shortcuts
QS %{QUOTEDSTRING}

# Log formats
SYSLOGBASE %{SYSLOGTIMESTAMP:timestamp} (?:%{SYSLOGFACILITY} )?%{SYSLOGHOST:logsource} %{SYSLOGPROG}:

# Log Levels
LOGLEVEL ([Aa]lert|ALERT|[Tt]race|TRACE|[Dd]ebug|DEBUG|[Nn]otice|NOTICE|[Ii]nfo|INFO|[Ww]arn?(?:ing)?|WARN?(?:ING)?|[Ee]rr?(?:or)?|ERR?(?:OR)?|[Cc]rit?(?:ical)?|CRIT?(?:ICAL)?|[Ff]atal|FATAL|[Ss]evere|SEVERE|EMERG(?:ENCY)?|[Ee]merg(?:ency)?)



grok内置正则






input {
  file {
    path => "/var/log/nginx/access.log"
  }
}
filter {
  grok {
    match => {
      "message" => '%{IP:remote_addr} - (%{WORD:remote_user}|-) [%{HTTPDATE:time_local}] "%{WORD:method} %{NOTSPACE:request} HTTP/%{NUMBER}" %{NUMBER:status} %{NUMBER:body_bytes_sent} %{QS} %{QS:http_user_agent}'
    }
    remove_field => ["message"]
  }
}
output {
  elasticsearch {
    hosts => ["http://192.168.238.90:9200", "http://192.168.238.92:9200"]
    user => "elastic"
    password => "sjgpwd"
    index => "sjgnginx-%{+YYYY.MM.dd}"
  }
}



正则提取nginx日志






Kibana显示感叹号问题处理
  Kibana索引刷新
  Kibana索引的操作并不会影响到数据，删除重建也没问题

        Logstash字段特殊处理-替换或转类型
http_user_agent包含双引号，需要去除
filter {
  grok {
    match => {
      "message" => '%{IP:remote_addr} - (%{WORD:remote_user}|-) [%{HTTPDATE:time_local}] "%{WORD:method} %{NOTSPACE:request} HTTP/%{NUMBER}" %{NUMBER:status} %{NUMBER:body_bytes_sent} %{QS} %{QS:http_user_agent}'
    }
    remove_field => ["message"]
  }
  mutate {
    gsub => [ "http_user_agent",'"',"" ]
  }
}

Logstash字符串转整形
  mutate{
    gsub => [ "http_user_agent",'"',"" ]
    convert => { "status" => "integer" }
    convert => { "body_bytes_sent" => "integer" }
  }



字段替换或转类型处理






Logstash替换时间戳@timestamp
Nginx模拟用户访问
while true;do 
  curl 192.168.238.90/sjg666
  curl 127.0.0.1
  sleep 2
done

场景假设
  假设我们要分析用户昨天的访问日志

Logstash分析所有Nginx日志，发现问题
input {
  file {
    path => "/var/log/nginx/access.log"
    start_position => "beginning"
    sincedb_path => "/dev/null"
  }
}

两种时间
  发送日志时间，无法分析日志
  用户的访问时间在日志里，需要以日志里的为准，分析的结果才准确

以用户访问时间为准，格式为01/Aug/2020:10:34:20 +0800
filter {
  grok {
    match => {
      "message" => '%{IP:remote_addr} - (%{WORD:remote_user}|-) [%{HTTPDATE:time_local}] "%{WORD:method} %{NOTSPACE:request} HTTP/%{NUMBER}" %{NUMBER:status} %{NUMBER:body_bytes_sent} %{QS} %{QS:http_user_agent}'
    }
    remove_field => ["message"]
  }
  date {
    match => ["time_local", "dd/MMM/yyyy:HH:mm:ss Z"]
    target => "@timestamp"
  }
}

日志里如果有不同的时间格式，覆盖的时候格式要对应
20/Feb/2019:14:50:06 -> dd/MMM/yyyy:HH:mm:ss
2016-08-24 18:05:39,830 -> yyyy-MM-dd HH:mm:ss,SSS

手动统计Nginx的请求和网页显示进行对比
cat /var/log/nginx/access.log |awk '{print $4}'|sed 's/:[0-9][0-9]$//g'|sort |uniq -c

时间戳覆盖后删除
  mutate {
    gsub => [ "http_user_agent",'"',"" ]
    convert => { "status" => "integer" }
    convert => { "body_bytes_sent" => "integer" }
    remove_field => ["time_local"]
  }



替换时间戳






        Logstash正则提取异常处理
Logstash改成分析最新日志
input {
  file {
    path => "/var/log/nginx/access.log"
  }
}

正则提取有异常的情况
echo "sjgmethods xxx xxx" >> /var/log/nginx/access.log
tags: _grokparsefailure

设置正则出错提取到另外的索引里
output {
  if "_grokparsefailure" not in [tags] and "_dateparsefailure" not in [tags] {
    elasticsearch {
      hosts => ["http://192.168.238.90:9200", "http://192.168.238.92:9200"]
      user => "elastic"
      password => "sjgpwd"
      index => "sjgnginx-%{+YYYY.MM.dd}"
    }
  }
  else{
    elasticsearch {
      hosts => ["http://192.168.238.90:9200", "http://192.168.238.92:9200"]
      user => "elastic"
      password => "sjgpwd"
      index => "sjgfail-%{+YYYY.MM.dd}"
    }
  }
}

        Kibana图形简单使用
模拟数据
  while true;do 
    curl 192.168.238.90/sjg666; 
    curl 127.0.0.1; 
    sleep 2; 
  done

首页区域
  可以根据时间查看访问量：每分钟访问量
  可以根据某个字段查询
  可以单独看某个字段的统计

Kibana图形有建立，选择terms去查看对应的数据
  饼图的创建 pie_remote_addr
  表的创建 table_remote_addr

Kibana面板的创建sjg_dash
  创建面板
  在面板上添加图形

建议采用Grafana展示



正则替换异常处理






Logstash分析Linux系统日志
默认的日志格式
  Aug  3 18:37:57 sjg1 sshd[1318]: Accepted password for root from xxx port 49205 ssh2
  无年份的字段

系统日志配置/etc/rsyslog.conf，重启rsyslog
$template sjgformat,"%$NOW% %TIMESTAMP:8:15% %hostname% %syslogtag% %msg%
"
$ActionFileDefaultTemplate sjgformat

日志格式
2020-08-03 18:47:34 sjg1 sshd[1522]: Accepted password for root from 58.101.14.103 port 49774 ssh2
%{TIMESTAMP_ISO8601:timestamp} %{NOTSPACE} %{NOTSPACE:procinfo}: (?<secinfo>.*)

只读权限添加
chmod +r secure

提取secure日志，messages等其它日志提取原理类似
input {
  file {
    path => "/var/log/secure"
  }
}
filter {
  grok {
    match => {
      "message" => '%{TIMESTAMP_ISO8601:timestamp} %{NOTSPACE} %{NOTSPACE:procinfo}: (?<secinfo>.*)'
    }
    remove_field => ["message"]
  }
  date {
    match => ["timestamp", "yyyy-MM-dd HH:mm:ss"]
    target => "@timestamp"
  }
  mutate {
    remove_field => ["timestamp"]
  }
}
output {
  elasticsearch {
    hosts => ["http://192.168.238.90:9200", "http://192.168.238.92:9200"]
    user => "elastic"
    password => "sjgpwd"
    index => "sjgsecure-%{+YYYY.MM.dd}"
  }
}



提取ssh日志分析






#input{
#    file {
#    path => "/var/log/nginx/access.log"
#    type => "nginx"
#  }
#    file {
#    path => "/var/log/secure"
#    type => "system"
#input{
#    file {
#    path => "/var/log/nginx/access.log"
#    type => "nginx"
#  }
#    file {
#    path => "/var/log/secure"
#    type => "system"
#  }
#
#}
input {
  beats {
    host => '0.0.0.0'
    port => 5044
  }
}
filter {
  if [type] == "nginx" {
    grok {
      match => {
        "message" => '%{IP:remote_addr} - (%{WORD:remote_user}|-) [%{HTTPDATE:time_local}] "%{WORD:method} %{NOTSPACE:request} HTTP/%{NUMBER}" %{NUMBER:status} %{NUMBER:body_bytes_sent} %{QS} %{QS:http_user_agent}'
      }
      remove_field => ["message"]
    }
    date {
      match => ["time_local", "dd/MMM/yyyy:HH:mm:ss Z"]
      target => "@timestamp"
    }
    mutate {
      gsub => [ "http_user_agent",'"','' ]
      convert => { "status" => "integer" }
      convert => { "body_bytes_sent" => "integer" }
      remove_field => ["time_local"]
    }
  }
   if [type] == "system"{
     grok {
      match => {
        "message" => '%{TIMESTAMP_ISO8601:timestamp} %{NOTSPACE} %{NOTSPACE:procinfo}: (?<secinfo>.*)'
      }
      remove_field => ["message"]
    }
    date {
      match => ["timestamp", "yyyy-MM-dd HH:mm:ss"]
      target => "@timestamp"
    }
    mutate {
      remove_field => ["timestamp"]
    }
  }
}
output {
  if [type] == "nginx"{
    elasticsearch {
      hosts => ["http://172.17.166.217:9200", "http://172.17.166.218:9200","http://172.17.166.219:9200"]
      user => "elastic"
      password => "1.Q1.Q1.Q"
      index => "testnginx-%{+YYYY.MM.dd}"
    }
  }
  if [type] == "system"{
    elasticsearch {
      hosts => ["http://172.17.166.217:9200", "http://172.17.166.218:9200","http://172.17.166.219:9200"]
      user => "elastic"
      password => "1.Q1.Q1.Q"
      index => "testsystem-%{+YYYY.MM.dd}"
    }
  }
}



logstash提取多个日志






input {
  beats {
    host => '0.0.0.0'
    port => 5044
  }
}
filter {
  if [type] == "nginx" {
    grok {
      match => {
        "message" => '%{IP:remote_addr} - (%{WORD:remote_user}|-) [%{HTTPDATE:time_local}] "%{WORD:method} %{NOTSPACE:request} HTTP/%{NUMBER}" %{NUMBER:status} %{NUMBER:body_bytes_sent} %{QS} %{QS:http_user_agent}'
      }
      remove_field => ["message"]
    }
    date {
      match => ["time_local", "dd/MMM/yyyy:HH:mm:ss Z"]
      target => "@timestamp"
    }
    mutate {
      gsub => [ "http_user_agent",'"','' ]
      convert => { "status" => "integer" }
      convert => { "body_bytes_sent" => "integer" }
      remove_field => ["time_local"]
    }
  }
   if [type] == "system"{
     grok {
      match => {
        "message" => '%{TIMESTAMP_ISO8601:timestamp} %{NOTSPACE} %{NOTSPACE:procinfo}: (?<secinfo>.*)'
      }
      remove_field => ["message"]
    }
    date {
      match => ["timestamp", "yyyy-MM-dd HH:mm:ss"]
      target => "@timestamp"
    }
    mutate {
      remove_field => ["timestamp"]
    }
  }
   if [type] == "mysql"{
     grok {
      match => {
        }
      remove_field => ["message"]

     }
     date {
       match => ["timestamp", "yyMMdd HH:mm:ss"]
       target => "@timestamp"
     }
     mutate {
       remove_field => ["timestamp"]
     }

   }

   if [type] == "tomcat" {
    grok {
      match => {
        "message" => '(?<timestamp>d+-[a-zA-Z]+-d+ d+:d+:d+.d+) %{NOTSPACE:loglevel} %{NOTSPACE:thread}(?<loginfo>(s+.*)+)'
      }
      remove_field => ["message"]
    }
    date {
      match => ["time_local", "dd-MMM-yyyy HH:mm:ss.SSS"]
      target => "@timestamp"
    }
    mutate {
      remove_field => ["timestamp"]
    }
  }

}
output {
  if [type] == "mysql"{
    elasticsearch {
      hosts => ["http://172.17.166.217:9200", "http://172.17.166.218:9200","http://172.17.166.219:9200"]
      user => "elastic"
      password => "1.Q1.Q1.Q"
      index => "testmysql-%{+YYYY.MM.dd}"
    }
  }
  if [type] == "tomcat"{
    elasticsearch {
      hosts => ["http://172.17.166.217:9200", "http://172.17.166.218:9200","http://172.17.166.219:9200"]
      user => "elastic"
      password => "1.Q1.Q1.Q"
      index => "testtomcat-%{+YYYY.MM.dd}"
    }
  }
  if [type] == "nginx"{
    elasticsearch {
      hosts => ["http://172.17.166.217:9200", "http://172.17.166.218:9200","http://172.17.166.219:9200"]
      user => "elastic"
      password => "1.Q1.Q1.Q"
      index => "testnginx-%{+YYYY.MM.dd}"
    }
  }
  if [type] == "system"{
    elasticsearch {
      hosts => ["http://172.17.166.217:9200", "http://172.17.166.218:9200","http://172.17.166.219:9200"]
      user => "elastic"
      password => "1.Q1.Q1.Q"
      index => "testsystem-%{+YYYY.MM.dd}"
    }
  }
}



logstash接收filebeat多主机日志






input {
  kafka {
    bootstrap_servers => "172.17.166.217:9092,172.17.166.218:9092,172.17.166.219:9092"
    topics => ["sjg"]
    group_id => "sjggroup"
    codec => "json"
  }
}
filter {
  if [type] == "nginx" {
    grok {
      match => {
        "message" => '%{IP:remote_addr} - (%{WORD:remote_user}|-) [%{HTTPDATE:time_local}] "%{WORD:method} %{NOTSPACE:request} HTTP/%{NUMBER}" %{NUMBER:status} %{NUMBER:body_bytes_sent} %{QS} %{QS:http_user_agent}'
      }
      remove_field => ["message"]
    }
    date {
      match => ["time_local", "dd/MMM/yyyy:HH:mm:ss Z"]
      target => "@timestamp"
    }
    mutate {
      gsub => [ "http_user_agent",'"','' ]
      convert => { "status" => "integer" }
      convert => { "body_bytes_sent" => "integer" }
      remove_field => ["time_local"]
    }
  }
   if [type] == "system"{
     grok {
      match => {
        "message" => '%{TIMESTAMP_ISO8601:timestamp} %{NOTSPACE} %{NOTSPACE:procinfo}: (?<secinfo>.*)'
      }
      remove_field => ["message"]
    }
    date {
      match => ["timestamp", "yyyy-MM-dd HH:mm:ss"]
      target => "@timestamp"
    }
    mutate {
      remove_field => ["timestamp"]
    }
  }
   if [type] == "mysql"{
     grok {
      match => {
        }
      remove_field => ["message"]

     }
     date {
       match => ["timestamp", "yyMMdd HH:mm:ss"]
       target => "@timestamp"
     }
     mutate {
       remove_field => ["timestamp"]
     }

   }

   if [type] == "tomcat" {
    grok {
      match => {
        "message" => '(?<timestamp>d+-[a-zA-Z]+-d+ d+:d+:d+.d+) %{NOTSPACE:loglevel} %{NOTSPACE:thread}(?<loginfo>(s+.*)+)'
      }
      remove_field => ["message"]
    }
    date {
      match => ["time_local", "dd-MMM-yyyy HH:mm:ss.SSS"]
      target => "@timestamp"
    }
    mutate {
      remove_field => ["timestamp"]
    }
  }

}
output {
  if [type] == "mysql"{
    elasticsearch {
      hosts => ["http://172.17.166.217:9200", "http://172.17.166.218:9200","http://172.17.166.219:9200"]
      user => "elastic"
      password => "1.Q1.Q1.Q"
      index => "testmysql-%{+YYYY.MM.dd}"
    }
  }
  if [type] == "tomcat"{
    elasticsearch {
      hosts => ["http://172.17.166.217:9200", "http://172.17.166.218:9200","http://172.17.166.219:9200"]
      user => "elastic"
      password => "1.Q1.Q1.Q"
      index => "testtomcat-%{+YYYY.MM.dd}"
    }
  }
  if [type] == "nginx"{
    elasticsearch {
      hosts => ["http://172.17.166.217:9200", "http://172.17.166.218:9200","http://172.17.166.219:9200"]
      user => "elastic"
      password => "1.Q1.Q1.Q"
      index => "testnginx-%{+YYYY.MM.dd}"
    }
  }
  if [type] == "system"{
    elasticsearch {
      hosts => ["http://172.17.166.217:9200", "http://172.17.166.218:9200","http://172.17.166.219:9200"]
      user => "elastic"
      password => "1.Q1.Q1.Q"
      index => "testsystem-%{+YYYY.MM.dd}"
    }
  }
}



logstash提取kafka队列日志信息






input {
  kafka {
    bootstrap_servers => "172.17.166.217:9092,172.17.166.218:9092,172.17.166.219:9092"
    topics => ["test2"]
    group_id => "test2group"
    codec => "json"
  }
}
filter {
  mutate {
    remove_field => ["agent","ecs","log","input","[host][os]"]
  }
}
#output {
#  elasticsearch {
#    hosts => ["http://172.17.166.217:9200", "http://172.17.166.218:9200", "http://172.17.166.219:9200"]
#    user => "elastic"
#    password => "1.Q1.Q1.Q"
#    index => "testmetric-%{+YYYY.MM.dd}"
#  }
#}
output {
  if [service][type] == "mysql" {
    elasticsearch {
      hosts => ["http://192.168.238.90:9200", "http://192.168.238.92:9200"]
      user => "elastic"
      password => "sjgpwd"
      index => "sjgmysql-%{+YYYY.MM.dd}"
    }
  }
  else if [service][type] == "redis" {
    elasticsearch {
      hosts => ["http://192.168.238.90:9200", "http://192.168.238.92:9200"]
      user => "elastic"
      password => "sjgpwd"
      index => "sjgredis-%{+YYYY.MM.dd}"
    }
  }
  else {
    elasticsearch {
      hosts => ["http://192.168.238.90:9200", "http://192.168.238.92:9200"]
      user => "elastic"
      password => "sjgpwd"
      index => "sjgother-%{+YYYY.MM.dd}"
    }
  }
}



logstash提取metricbeat日志发送到不同es分类索引











        

	      

	    

	  

	  

	    
      
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          原文地址：https://www.cnblogs.com/dahuige/p/15067379.html