79 lines
4.0 KiB
Go
79 lines
4.0 KiB
Go
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package grok
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// DEFAULT_PATTERNS SHOULD BE KEPT IN-SYNC WITH patterns/influx-patterns
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const DEFAULT_PATTERNS = `
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# Captures are a slightly modified version of logstash "grok" patterns, with
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# the format %{<capture syntax>[:<semantic name>][:<modifier>]}
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# By default all named captures are converted into string fields.
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# Modifiers can be used to convert captures to other types or tags.
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# Timestamp modifiers can be used to convert captures to the timestamp of the
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# parsed metric.
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# View logstash grok pattern docs here:
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# https://www.elastic.co/guide/en/logstash/current/plugins-filters-grok.html
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# All default logstash patterns are supported, these can be viewed here:
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# https://github.com/logstash-plugins/logstash-patterns-core/blob/master/patterns/grok-patterns
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# Available modifiers:
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# string (default if nothing is specified)
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# int
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# float
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# duration (ie, 5.23ms gets converted to int nanoseconds)
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# tag (converts the field into a tag)
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# drop (drops the field completely)
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# Timestamp modifiers:
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# ts-ansic ("Mon Jan _2 15:04:05 2006")
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# ts-unix ("Mon Jan _2 15:04:05 MST 2006")
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# ts-ruby ("Mon Jan 02 15:04:05 -0700 2006")
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# ts-rfc822 ("02 Jan 06 15:04 MST")
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# ts-rfc822z ("02 Jan 06 15:04 -0700")
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# ts-rfc850 ("Monday, 02-Jan-06 15:04:05 MST")
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# ts-rfc1123 ("Mon, 02 Jan 2006 15:04:05 MST")
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# ts-rfc1123z ("Mon, 02 Jan 2006 15:04:05 -0700")
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# ts-rfc3339 ("2006-01-02T15:04:05Z07:00")
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# ts-rfc3339nano ("2006-01-02T15:04:05.999999999Z07:00")
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# ts-httpd ("02/Jan/2006:15:04:05 -0700")
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# ts-epoch (seconds since unix epoch)
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# ts-epochnano (nanoseconds since unix epoch)
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# ts-"CUSTOM"
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# CUSTOM time layouts must be within quotes and be the representation of the
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# "reference time", which is Mon Jan 2 15:04:05 -0700 MST 2006
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# See https://golang.org/pkg/time/#Parse for more details.
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# Example log file pattern, example log looks like this:
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# [04/Jun/2016:12:41:45 +0100] 1.25 200 192.168.1.1 5.432µs
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# Breakdown of the DURATION pattern below:
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# NUMBER is a builtin logstash grok pattern matching float & int numbers.
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# [nuµm]? is a regex specifying 0 or 1 of the characters within brackets.
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# s is also regex, this pattern must end in "s".
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# so DURATION will match something like '5.324ms' or '6.1µs' or '10s'
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DURATION %{NUMBER}[nuµm]?s
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RESPONSE_CODE %{NUMBER:response_code:tag}
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RESPONSE_TIME %{DURATION:response_time_ns:duration}
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EXAMPLE_LOG \[%{HTTPDATE:ts:ts-httpd}\] %{NUMBER:myfloat:float} %{RESPONSE_CODE} %{IPORHOST:clientip} %{RESPONSE_TIME}
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# Wider-ranging username matching vs. logstash built-in %{USER}
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NGUSERNAME [a-zA-Z0-9\.\@\-\+_%]+
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NGUSER %{NGUSERNAME}
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# Wider-ranging client IP matching
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CLIENT (?:%{IPV6}|%{IPV4}|%{HOSTNAME}|%{HOSTPORT})
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##
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## COMMON LOG PATTERNS
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##
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# apache & nginx logs, this is also known as the "common log format"
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# see https://en.wikipedia.org/wiki/Common_Log_Format
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COMMON_LOG_FORMAT %{CLIENT:client_ip} %{NOTSPACE:ident} %{NOTSPACE:auth} \[%{HTTPDATE:ts:ts-httpd}\] "(?:%{WORD:verb:tag} %{NOTSPACE:request}(?: HTTP/%{NUMBER:http_version:float})?|%{DATA})" %{NUMBER:resp_code:tag} (?:%{NUMBER:resp_bytes:int}|-)
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# Combined log format is the same as the common log format but with the addition
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# of two quoted strings at the end for "referrer" and "agent"
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# See Examples at http://httpd.apache.org/docs/current/mod/mod_log_config.html
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COMBINED_LOG_FORMAT %{COMMON_LOG_FORMAT} %{QS:referrer} %{QS:agent}
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# HTTPD log formats
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HTTPD20_ERRORLOG \[%{HTTPDERROR_DATE:timestamp}\] \[%{LOGLEVEL:loglevel:tag}\] (?:\[client %{IPORHOST:clientip}\] ){0,1}%{GREEDYDATA:errormsg}
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HTTPD24_ERRORLOG \[%{HTTPDERROR_DATE:timestamp}\] \[%{WORD:module}:%{LOGLEVEL:loglevel:tag}\] \[pid %{POSINT:pid:int}:tid %{NUMBER:tid:int}\]( \(%{POSINT:proxy_errorcode:int}\)%{DATA:proxy_errormessage}:)?( \[client %{IPORHOST:client}:%{POSINT:clientport}\])? %{DATA:errorcode}: %{GREEDYDATA:message}
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HTTPD_ERRORLOG %{HTTPD20_ERRORLOG}|%{HTTPD24_ERRORLOG}
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`
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