Add parser/apache.md - #652
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lib/fluent/plugin/parser_apache.rb registers the "apache" parser via
`Plugin.register_parser("apache", self)`, but it had no documentation page
while apache2 and apache_error do.
The plugin is a RegexpParser subclass with only two defaults:
config_set_default :expression, /^(?<host>[^ ]*) [^ ]* (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^ ]*) +\S*)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$/
config_set_default :time_format, "%d/%b/%Y:%H:%M:%S %z"
The page follows parser/nginx.md, which documents the other RegexpParser
subclass. The Example output was verified by running the parser against the
sample line: all fields are returned as String and "-" is kept verbatim,
unlike apache2 which casts code/size to Integer and maps "-" to nil.
The new page is linked from the three places that list the built-in
parsers: SUMMARY.md, parser/README.md and configuration/parse-section.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Shizuo Fujita <fujita@clear-code.com>
kenhys
approved these changes
Jul 28, 2026
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lib/fluent/plugin/parser_apache.rb registers the "apache" parser via
Plugin.register_parser("apache", self), but it had no documentation page while apache2 and apache_error do.The plugin is a RegexpParser subclass with only two defaults:
The page follows parser/nginx.md, which documents the other RegexpParser subclass. The Example output was verified by running the parser against the sample line: all fields are returned as String and "-" is kept verbatim, unlike apache2 which casts code/size to Integer and maps "-" to nil.