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xymon_alerting.aug
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(* Module: Xymon_Alerting Parses xymon alerting files Author: Francois Maillard <fmaillard@gmail.com> About: Reference This lens tries to keep as close as possible to `man 5 alerts.cfg` where possible. About: License This file is licenced under the LGPL v2+, like the rest of Augeas. About: Lens Usage To be documented About: Not supported File inclusion are not followed About: Configuration files This lens applies to /etc/xymon/alerts.d/*.cfg and /etc/xymon/alerts.cfg. See <filter>. About: Examples The <Test_Xymon_Alerting> file contains various examples and tests. *) module Xymon_Alerting = autoload xfm (************************************************************************ * Group: USEFUL PRIMITIVES *************************************************************************) (* View: store_word *) let store_word = store /[^ =\t\n#]+/ (* View: comparison The greater and lesser than operators *) let comparison = store /[<>]/ (* View: equal *) let equal = Sep.equal (* View: ws *) let ws = Sep.space (* View: eol *) let eol = Util.eol (* View: ws_or_eol *) let ws_or_eol = del /([ \t]+|[ \t]*\n[ \t]*)/ " " (* View: comment *) let comment = Util.comment (* View: empty *) let empty = Util.empty (* View: include *) let include = [ key "include" . ws . store_word . eol ] (************************************************************************ * Group: MACRO DEFINITION *************************************************************************) (* View: macrodefinition A string that starts with $ and that is assigned something *) let macrodefinition = [ key /\$[^ =\t\n#\/]+/ . Sep.space_equal . store Rx.space_in . eol ] (* View: flag A flag value *) let flag (kw:string) = Build.flag kw (* View: kw_word A key=value value *) let kw_word (kw:regexp) = Build.key_value kw equal store_word (************************************************************************ * Group: FILTERS *************************************************************************) (* View: page The (ex)?page filter definition *) let page = kw_word /(EX)?PAGE/ (* View: group The (ex)?group filter definition *) let group = kw_word /(EX)?GROUP/ (* View: host The (ex)?host filter definition *) let host = kw_word /(EX)?HOST/ (* View: service The (ex)?service filter definition *) let service = kw_word /(EX)?SERVICE/ (* View: color The color filter definition *) let color = kw_word "COLOR" (* View: time The time filter definition *) let time = kw_word "TIME" (* View: duration The duration filter definition *) let duration = [ key "DURATION" . [ label "operator" . comparison ] . [ label "value" . store_word ] ] (* View: recover The recover filter definition *) let recover = flag "RECOVER" (* View: notice The notice filter definition *) let notice = flag "NOTICE" (* View: rule_filter Filters are made out of any of the above filter definitions *) let rule_filter = page | group | host | service | color | time | duration | recover | notice (* View: filters One or more filters *) let filters = [ label "filters" . Build.opt_list rule_filter ws ] (* View: filters_opt Zero, one or more filters *) let filters_opt = [ label "filters" . (ws . Build.opt_list rule_filter ws)? ] (* View: kw_word_filters_opt A <kw_word> entry with optional filters *) let kw_word_filters_opt (kw:string) = [ key kw . equal . store_word . filters_opt ] (* View: flag_filters_opt A <flag> with optional filters *) let flag_filters_opt (kw:string) = [ key kw . filters_opt ] (************************************************************************ * Group: RECIPIENTS *************************************************************************) (* View: mail The mail recipient definition *) let mail = [ key "MAIL" . ws . store_word . filters_opt ] (* View: script The script recipient definition *) let script = [ key "SCRIPT" . ws . [ label "script" . store_word ] . ws . [ label "recipient" . store_word ] . filters_opt ] (* View: ignore The ignore recipient definition *) let ignore = flag_filters_opt "IGNORE" (* View: format The format recipient definition *) let format = kw_word_filters_opt "FORMAT" (* View: repeat The repeat recipient definition *) let repeat = kw_word_filters_opt "REPEAT" (* View: unmatched The unmatched recipient definition *) let unmatched = flag_filters_opt "UNMATCHED" (* View: stop The stop recipient definition *) let stop = flag_filters_opt "STOP" (* View: macro The macro recipient definition *) let macro = [ key /\$[^ =\t\n#\/]+/ . filters_opt ] (* View: recipient Recipients are made out of any of the above recipient definitions *) let recipient = mail | script | ignore | format | repeat | unmatched | stop | macro let recipients = [ label "recipients" . Build.opt_list recipient ws_or_eol ] (************************************************************************ * Group: RULES *************************************************************************) (* View: rule Rules are made of rule_filter and then recipients sperarated by a whitespace *) let rule = [ seq "rules" . filters . ws_or_eol . recipients . eol ] (* View: lns The Xymon_Alerting lens *) let lns = ( rule | macrodefinition | include | empty | comment )* (* Variable: filter *) let filter = incl "/etc/xymon/alerts.d/*.cfg" . incl "/etc/xymon/alerts.cfg" . Util.stdexcl let xfm = transform lns filter