author | Mahlon E. Smith <mahlon@laika.com> |
Wed, 13 Jun 2018 09:28:29 -0700 | |
changeset 9 | b79fff2fe432 |
parent 8 | 4f397a05dcdf |
permissions | -rw-r--r-- |
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# -*- ruby -*- |
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# vim: set noet nosta sw=4 ts=4 : |
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# encoding: utf-8 |
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# |
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# This library parses fping output when provided a list of nodes to |
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# monitor. Require it from your monitor file(s), and call the Arborist |
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# exec() with this class -- that's it. |
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# |
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# require 'arborist/monitor/fping' |
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# |
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# Arborist::Monitor 'ping check' do |
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# every 20.seconds |
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# match type: 'host' |
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# exec 'fping', '-e', '-t', '150' |
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# exec_callbacks( Arborist::Monitor::FPing ) |
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# end |
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require 'loggability' |
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require 'arborist/monitor' unless defined?( Arborist::Monitor ) |
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# Parse Fping output for better batch ICMP checks. |
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# |
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module Arborist::Monitor::FPing |
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extend Loggability |
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log_to :arborist |
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# The version of this library. |
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4f397a05dcdf
Fix versioning and dependencies for release.
Mahlon E. Smith <mahlon@martini.nu>
parents:
7
diff
changeset
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VERSION = '0.1.0' |
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69f2ba4d4d93
Use the new #node_properties method.
Mahlon E. Smith <mahlon@martini.nu>
parents:
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changeset
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69f2ba4d4d93
Use the new #node_properties method.
Mahlon E. Smith <mahlon@martini.nu>
parents:
0
diff
changeset
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# Always request the node addresses. |
69f2ba4d4d93
Use the new #node_properties method.
Mahlon E. Smith <mahlon@martini.nu>
parents:
0
diff
changeset
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USED_PROPERTIES = [ :addresses ].freeze |
69f2ba4d4d93
Use the new #node_properties method.
Mahlon E. Smith <mahlon@martini.nu>
parents:
0
diff
changeset
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|
69f2ba4d4d93
Use the new #node_properties method.
Mahlon E. Smith <mahlon@martini.nu>
parents:
0
diff
changeset
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### Return the properties used by this monitor. |
69f2ba4d4d93
Use the new #node_properties method.
Mahlon E. Smith <mahlon@martini.nu>
parents:
0
diff
changeset
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def self::node_properties |
69f2ba4d4d93
Use the new #node_properties method.
Mahlon E. Smith <mahlon@martini.nu>
parents:
0
diff
changeset
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return USED_PROPERTIES |
69f2ba4d4d93
Use the new #node_properties method.
Mahlon E. Smith <mahlon@martini.nu>
parents:
0
diff
changeset
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end |
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attr_accessor :identifiers |
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6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
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### Arborist::Monitor API: Send addresses to the fping binary, after |
6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
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### creating a map to re-associate them back to identifiers. |
6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
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### |
6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
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def exec_input( nodes, io ) |
6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
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self.log.debug "Building fping input for %d nodes" % [ nodes.size ] |
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self.identifiers = nodes.each_with_object({}) do |(identifier, props), hash| |
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next unless props.key?( 'addresses' ) |
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address = props[ 'addresses' ].first |
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hash[ address ] = identifier |
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end |
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6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
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return if self.identifiers.empty? |
6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
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6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
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self.identifiers.keys.each{|ip| io.puts(ip) } |
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end |
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5
6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
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57 |
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6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
|
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### Parse fping output, return a hash of RTT data, along |
6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
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### with any detected errors. |
6cf2c60c80f7
Provide fping addresses via pipe, instead of an argument list.
Mahlon E. Smith <mahlon@martini.nu>
parents:
4
diff
changeset
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### |
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def handle_results( pid, stdout, stderr ) |
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# 8.8.8.8 is alive (32.1 ms) |
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# 8.8.4.4 is alive (14.9 ms) |
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919f139d2931
Fix the matcher for slower responses.
Mahlon E. Smith <mahlon@martini.nu>
parents:
6
diff
changeset
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# 1.1.1.1 is alive (236 ms) |
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# 8.8.0.1 is unreachable |
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return stdout.each_line.with_object({}) do |line, hash| |
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address, remainder = line.split( ' ', 2 ) |
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identifier = self.identifiers[ address ] or next |
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7
919f139d2931
Fix the matcher for slower responses.
Mahlon E. Smith <mahlon@martini.nu>
parents:
6
diff
changeset
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if remainder =~ /is alive \((\d+(?:\.\d+)?) ms\)/ |
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hash[ identifier ] = { rtt: Float( $1 ) } |
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else |
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hash[ identifier ] = { error: remainder.chomp } |
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end |
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end |
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end |
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end # Arborist::Monitor::FPing |
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