• ELK 处理分析日志(nginx,syslog)


    ELK 处理分析日志(nginx,syslog)

    官方网站:

    环境:
    CentOS 7.1 x64
    elasticsearch-2.3.2
    logstash-2.3.2(或logstash-all-plugins-2.3.1)
    kibana-4.5.0
    nginx-1.10.0
    redis-3.0.7

    elasticsearch 192.168.8.101-103
    logstash,nginx 192.168.8.105
    kibana,redis 192.168.8.254

    Elasticsearch集群


    Logstash收集日志
    ELK <wbr>处理分析日志(nginx,syslog)
    mkdir -p /opt/logstash-2.3.2/{config,logs}
    cat >/opt/logstash-2.3.2/config/first-pipeline.conf <<HERE

    input {

        file {

            path => "/var/log/nginx/*_access"

            start_position => beginning

        }

    }

    filter {

        grok {

            match => { "message" => "%{COMBINEDAPACHELOG}"}

        }

        date {

            match => [ "timestamp" , "dd/MMM/yyyy:HH:mm:ss Z" ]

     

       

        geoip {

            source => "clientip"

        }

    }

    output {

        elasticsearch {

            hosts => ["192.168.8.10:9200"]

            index => "nginx-%{+YYYY.MM.DD}"

        }

    }

    HERE

    screen -dmS logstash /opt/logstash-2.3.2/bin/logstash agent -f /opt/logstash-2.3.2/config/first-pipeline.conf -l /opt/logstash-2.3.2/logs/logstash.log

    提示: screen比nohup功能强大得多,有兴趣的朋友可以参看终端多窗口管理神器 ------tmux byobu screen terminator谁与争锋之screen篇



    Kibana
    mv /opt/kibana-4.5.0-linux-x64/config/kibana.yml{,.default}
    cat  >/opt/kibana-4.5.0-linux-x64/config/kibana.yml <<HERE

    server.port: 5601

    server.host: "192.168.8.254"

    elasticsearch.url: "http://192.168.8.10:9200"

    kibana.index: ".kibana"

    HERE
    kibana默认监听在所有接口的5601端口,可以设置指定值来指定,最主要的两个参数是
    elasticsearch.url #合法的elasticsearch主机查询URL
    kibana.index #kibana中的检索主键
    http://192.168.8.254:5061
    ELK <wbr>处理分析日志(nginx,syslog)

    ELK <wbr>处理分析日志(nginx,syslog)

    Discover pannel是专门过滤字段的,这里选中agent,和clientip,右边会将检索到的记录高亮显示
    ELK <wbr>处理分析日志(nginx,syslog)

    日志字段检索重排
    ELK <wbr>处理分析日志(nginx,syslog)


    示例二:redis日志流中转
    Nginx日志格式定制

    log_format logstash '$http_host $server_addr $remote_addr [$time_local] "$request" '

                        '$request_body $status $body_bytes_sent "$http_referer" "$http_user_agent" '

                        '$request_time $upstream_response_time';


    access_log  /var/log/nginx/www.jlive.com_access  logstash;



    Logstash agent将日志导入到redis

    cat >/opt/logstash-2.3.2/config/logstash_agent.conf <<HERE

    input {

            file {

                    type => "nginx_access"

                    path => ["/var/log/nginx/www.jlive.com_access"]

                    start_position => beginning

            }

    }

    output {

            redis {

                    host => "192.168.8.254"

                    data_type => "list"

                    key => "logstash:redis"

            }

     

    }

    HERE

     

    screen -dmS logstash /opt/logstash-2.3.2/bin/logstash -f /opt/logstash-2.3.2/config/logstash_agent.conf -l /opt/logstash-2.3.2/logs/logstash_agent.log



    Logstash indexer将日志从redis传送到elasticsearch主机组

    cat >/opt/logstash-2.3.2/config/logstash_indexer.conf <<HERE

    input {

            redis {

                    host => "192.168.8.254"

                    data_type => "list"

                    key => "logstash:redis"

                    type => "redis-input"

            }

    }

    filter {

        grok {

            match => { "message" => "%{WORD:http_host} %{URIHOST:api_domain} %{IP:inner_ip} %{IP:lvs_ip} [%{HTTPDATE:timestamp}] "%{WORD:http_verb} %{URIPATH:baseurl}(?:?%{NOTSPACE:request}|) HTTP/%{NUMBER:http_version}" (?:-|%{NOTSPACE:request}) %{NUMBER:http_status_code} (?:%{NUMBER:bytes_read}|-) %{QS:referrer} %{QS:agent} %{NUMBER:time_duration:float} (?:%{NUMBER:time_backend_response:float}|-)"}

        }

        geoip {

            source => "clientip"

        }

        kv {

            prefix => "request."

            field_split => "&"

            source => "request"

        }

        urldecode {

            all_fields => true

        }

    }

    output {

            elasticsearch {

                    hosts => ["192.168.8.10:9200"]

                    index => "nginx-%{+YYYY.MM.DD}"

            } 

    } 

    HERE

    /opt/logstash-2.3.2/bin/logstash -f /opt/logstash-2.3.2/config/logstash_indexer.conf -l /opt/logstash-2.3.2/logs/logstash_indexer.log




    示例三: syslog

    https://www.elastic.co/guide/en/logstash/current/config-examples.html



    cat >/opt/logstash-2.3.2/config/logstash_rsyslog.conf <<HERE

    input {

        tcp {

            port => 514

            type => syslog

        }

        udp {

            port => 514

            type => syslog

        }

    }


    filter {

        if [type] == "syslog" {

            grok {

                match => { "message" => "%{SYSLOGTIMESTAMP:syslog_timestamp} %{SYSLOGHOST:syslog_hostname} %{DATA:syslog_program}(?:[%{POSINT:syslog_pid}])?: %{GREEDYDATA:syslog_message}" }

                add_field => [ "received_at", "%{@timestamp}" ]

                add_field => [ "received_from", "%{host}" ]

            }

            date {

                match => [ "syslog_timestamp", "MMM  d HH:mm:ss", "MMM dd HH:mm:ss" ]

            }

        }

    }


    output {

        elasticsearch { 

        hosts => ["localhost:9200"] 

        index => "rsyslog-%{+YYYY.MM.DD}"

        }

        stdout { codec => rubydebug }

     

    }

    HERE

    root@jlive:~#netstat -tunlp|grep 514

    tcp6           0 :::514                  :::*                    LISTEN      10314/java          

    udp6           0 :::514                  :::*                                10314/java 

    启动logstash后会监听在tcp/udp514端口,模拟系统日志

    telnet localhost 514

    复制如下内容


    
    Dec 23 12:11:43 louis postfix/smtpd[31499]: connect from unknown[95.75.93.154]
    Dec 23 14:42:56 louis named[16000]: client 199.48.164.7#64817: query (cache) 'amsterdamboothuren.com/MX/IN' denied
    Dec 23 14:30:01 louis CRON[619]: (www-data) CMD (php /usr/share/cacti/site/poller.php >/dev/null 2>/var/log/cacti/poller-error.log)
    Dec 22 18:28:06 louis rsyslogd: [origin software="rsyslogd" swVersion="4.2.0" x-pid="2253" x-info="http://www.rsyslog.com"] rsyslogd was HUPed, type 'lightweight'.
    

     

    
    

      root@jlive:~#/opt/logstash-2.3.2/bin/logstash -f /opt/logstash-2.3.2/config/logstash_rsyslog.conf 

    Settings: Default pipeline workers: 4

    Pipeline main started

    {

                 "message" => "Dec 23 12:11:43 louis postfix/smtpd[31499]: connect from unknown[95.75.93.154] ",

                "@version" => "1",

              "@timestamp" => "2016-12-23T04:11:43.000Z",

                    "host" => "0:0:0:0:0:0:0:1",

                    "port" => 60655,

                    "type" => "syslog",

        "syslog_timestamp" => "Dec 23 12:11:43",

         "syslog_hostname" => "louis",

          "syslog_program" => "postfix/smtpd",

              "syslog_pid" => "31499",

          "syslog_message" => "connect from unknown[95.75.93.154] ",

             "received_at" => "2016-05-11T09:15:58.159Z",

           "received_from" => "0:0:0:0:0:0:0:1"

    }

    {

                 "message" => "Dec 23 14:42:56 louis named[16000]: client 199.48.164.7#64817: query (cache) 'amsterdamboothuren.com/MX/IN' denied ",

                "@version" => "1",

              "@timestamp" => "2016-12-23T06:42:56.000Z",

                    "host" => "0:0:0:0:0:0:0:1",

                    "port" => 60655,

                    "type" => "syslog",

        "syslog_timestamp" => "Dec 23 14:42:56",

         "syslog_hostname" => "louis",

          "syslog_program" => "named",

              "syslog_pid" => "16000",

          "syslog_message" => "client 199.48.164.7#64817: query (cache) 'amsterdamboothuren.com/MX/IN' denied ",

             "received_at" => "2016-05-11T09:15:58.160Z",

           "received_from" => "0:0:0:0:0:0:0:1"

    }

    {

                 "message" => "Dec 23 14:30:01 louis CRON[619]: (www-data) CMD (php /usr/share/cacti/site/poller.php >/dev/null 2>/var/log/cacti/poller-error.log) ",

                "@version" => "1",

              "@timestamp" => "2016-12-23T06:30:01.000Z",

                    "host" => "0:0:0:0:0:0:0:1",

                    "port" => 60655,

                    "type" => "syslog",

        "syslog_timestamp" => "Dec 23 14:30:01",

         "syslog_hostname" => "louis",

          "syslog_program" => "CRON",

              "syslog_pid" => "619",

          "syslog_message" => "(www-data) CMD (php /usr/share/cacti/site/poller.php >/dev/null 2>/var/log/cacti/poller-error.log) ",

             "received_at" => "2016-05-11T09:15:58.161Z",

           "received_from" => "0:0:0:0:0:0:0:1"

    }

    {

                 "message" => "Dec 22 18:28:06 louis rsyslogd: [origin software="rsyslogd" swVersion="4.2.0" x-pid="2253" x-info="http://www.rsyslog.com"] rsyslogd was HUPed, type 'lightweight'. ",

                "@version" => "1",

              "@timestamp" => "2016-12-22T10:28:06.000Z",

                    "host" => "0:0:0:0:0:0:0:1",

                    "port" => 60655,

                    "type" => "syslog",

        "syslog_timestamp" => "Dec 22 18:28:06",

         "syslog_hostname" => "louis",

          "syslog_program" => "rsyslogd",

          "syslog_message" => "[origin software="rsyslogd" swVersion="4.2.0" x-pid="2253" x-info="http://www.rsyslog.com"] rsyslogd was HUPed, type 'lightweight'. ",

             "received_at" => "2016-05-11T09:15:59.515Z",

           "received_from" => "0:0:0:0:0:0:0:1"

    }

    
    


    
    ELK <wbr>处理分析日志(nginx,syslog)

    ELK <wbr>处理分析日志(nginx,syslog)


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  • 原文地址:https://www.cnblogs.com/lixuebin/p/10814097.html
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