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/assets/ | ||
/Gemfile.lock |
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AllCops: | ||
SuggestExtensions: false | ||
TargetRubyVersion: 3.2 | ||
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Metrics/AbcSize: | ||
Enabled: false | ||
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Metrics/MethodLength: | ||
Enabled: false | ||
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Metrics/ClassLength: | ||
Enabled: false | ||
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Metrics/CyclomaticComplexity: | ||
Enabled: false | ||
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Metrics/PerceivedComplexity: | ||
Enabled: false | ||
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Layout/LineLength: | ||
Enabled: false | ||
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Style/Documentation: | ||
Enabled: false | ||
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Style/StringLiterals: | ||
Enabled: true | ||
EnforcedStyle: single_quotes | ||
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Style/StringLiteralsInInterpolation: | ||
Enabled: true | ||
EnforcedStyle: double_quotes |
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3.2.2 |
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FROM sensu-ruby32-runtime-3.2.2-debian10:0.1.2 | ||
ARG ASSET_GEM=sensu-plugins-chrony | ||
ARG GIT_REF=9247833830bf37d03456146588590333a447416a | ||
ARG GIT_REPO=https://github.com/opsone/sensu-plugins-chrony.git | ||
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WORKDIR /assets/build/ | ||
RUN apt-get update && apt-get install -y git | ||
RUN printf "source 'https://rubygems.org'\n\ngem '%s', git: '%s' , ref: '%s'\n" ${ASSET_GEM} ${GIT_REPO} ${GIT_REF} | tee Gemfile | ||
RUN bundle install --path=lib/ --binstubs=bin/ --standalone | ||
RUN tar -czf /assets/${ASSET_GEM}.tar.gz -C /assets/build/ . |
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FROM sensu-ruby32-runtime-3.2.2-debian11:0.1.2 | ||
ARG ASSET_GEM=sensu-plugins-chrony | ||
ARG GIT_REF=9247833830bf37d03456146588590333a447416a | ||
ARG GIT_REPO=https://github.com/opsone/sensu-plugins-chrony.git | ||
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WORKDIR /assets/build/ | ||
RUN apt-get update && apt-get install -y git | ||
RUN printf "source 'https://rubygems.org'\n\ngem '%s', git: '%s' , ref: '%s'\n" ${ASSET_GEM} ${GIT_REPO} ${GIT_REF} | tee Gemfile | ||
RUN bundle install --path=lib/ --binstubs=bin/ --standalone | ||
RUN tar -czf /assets/${ASSET_GEM}.tar.gz -C /assets/build/ . |
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# frozen_string_literal: true | ||
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source 'https://rubygems.org' | ||
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# Specify your gem's dependencies in sensu-plugins-postgres.gemspec | ||
gemspec | ||
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gem 'rake', '~> 13.0' | ||
gem 'rubocop', '~> 1.21' |
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# frozen_string_literal: true | ||
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require 'bundler/gem_tasks' | ||
require 'rubocop/rake_task' | ||
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RuboCop::RakeTask.new | ||
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task default: :rubocop | ||
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task :build_assets do | ||
version = Sensu::Plugins::Chrony::VERSION | ||
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%w[debian11 debian10].each do |platform| | ||
`docker build -t ruby-plugin-#{platform} -f Dockerfile.#{platform} .` | ||
`docker run -v "$PWD/assets:/tmp/assets" ruby-plugin-#{platform} cp /assets/sensu-plugins-chrony.tar.gz /tmp/assets/sensu-plugins-chrony_#{version}_#{platform}_linux_amd64.tar.gz` | ||
`docker rm $(docker ps -a -q --filter ancestor=ruby-plugin-#{platform})` | ||
`docker rmi ruby-plugin-#{platform}` | ||
end | ||
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`cd assets && shasum -a 512 ./*.tar.gz > sensu-plugins-chrony_#{version}_sha512-checksums.txt` | ||
end |
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#!/usr/bin/env ruby | ||
# frozen_string_literal: true | ||
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require 'sensu-plugin/check/cli' | ||
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class CheckChrony < Sensu::Plugin::Check::CLI | ||
option :chronyc_cmd, | ||
description: 'Path to chronyc executable (default: /usr/bin/chronyc)', | ||
short: '-c <PATH>', | ||
long: '--chronyc-cmd <PATH>', | ||
default: '/usr/bin/chronyc' | ||
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option :warn_offset, | ||
description: 'Warn if OFFSET exceeds current offset (ms)', | ||
long: '--warn-offset <OFFSET>', | ||
proc: proc(&:to_f), | ||
default: 50 | ||
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option :crit_offset, | ||
description: 'Critical if OFFSET exceeds current offset (ms)', | ||
long: '--crit-offset <OFFSET>', | ||
proc: proc(&:to_f), | ||
default: 100 | ||
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option :warn_stratum, | ||
description: 'Warn if STRATUM exceeds current stratum', | ||
long: '--warn-stratum <STRATUM>', | ||
proc: proc(&:to_i), | ||
default: 10 | ||
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option :crit_stratum, | ||
description: 'Critical if STRATUM exceeds current stratum', | ||
long: '--crit-stratum <STRATUM>', | ||
proc: proc(&:to_i), | ||
default: 16 | ||
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def run | ||
stratum = nil | ||
offset = nil | ||
status = nil | ||
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`#{config[:chronyc_cmd]} tracking`.each_line do |line| | ||
case line.downcase | ||
when /^stratum\s*:\s*(\d+)$/ | ||
stratum = Regexp.last_match(1).to_i | ||
when /^last offset\s*:\s*([\-\+]?[.\d]+)\s*seconds$/ | ||
# convert from seconds to milliseconds | ||
offset = Regexp.last_match(1).to_f * 1000 | ||
when /^leap status\s*:\s*(.*?)$/ | ||
status = Regexp.last_match(1) | ||
end | ||
end | ||
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if stratum | ||
msg = "NTP stratum is #{stratum}" | ||
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if stratum >= config[:crit_stratum] | ||
msg += ", expected < #{config[:crit_stratum]}" | ||
critical msg | ||
elsif stratum >= config[:warn_stratum] | ||
msg += ", expected < #{config[:warn_stratum]}" | ||
warning msg | ||
else | ||
ok msg | ||
end | ||
else | ||
unknown 'Failed to look up NTP stratum' | ||
end | ||
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if offset | ||
msg = "NTP offset is #{offset.round(4)}ms" | ||
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if offset >= config[:crit_offset] || offset <= -config[:crit_offset] | ||
msg += ", expected > -#{config[:crit_offset]} and < #{config[:crit_offset]}" | ||
critical msg | ||
elsif offset >= config[:warn_offset] || offset < -config[:warn_offset] | ||
msg += ", expected > -#{config[:warn_offset]} and < #{config[:warn_offset]}" | ||
warning msg | ||
else | ||
ok msg | ||
end | ||
else | ||
unknown 'Failed to look up NTP offset' | ||
end | ||
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if status | ||
msg = "NTP status is '#{status}'" | ||
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if status != 'normal' | ||
msg += ', expected \'Normal\'' | ||
critical msg | ||
else | ||
ok msg | ||
end | ||
else | ||
unknown 'Failed to look up NTP status' | ||
end | ||
end | ||
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private | ||
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def send_client_socket(data) | ||
sock = UDPSocket.new | ||
sock.send("#{data}\n", 0, '127.0.0.1', 3030) | ||
end | ||
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def send_ok(check_name, msg) | ||
event = { | ||
'name' => check_name, | ||
'status' => 0, | ||
'output' => "#{self.class.name} OK: #{msg}" | ||
} | ||
send_client_socket(event.to_json) | ||
end | ||
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def send_warning(check_name, msg) | ||
event = { | ||
'name' => check_name, | ||
'status' => 1, | ||
'output' => "#{self.class.name} WARNING: #{msg}" | ||
} | ||
send_client_socket(event.to_json) | ||
end | ||
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def send_critical(check_name, msg) | ||
event = { | ||
'name' => check_name, | ||
'status' => 2, | ||
'output' => "#{self.class.name} CRITICAL: #{msg}" | ||
} | ||
send_client_socket(event.to_json) | ||
end | ||
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def send_unknown(check_name, msg) | ||
event = { | ||
'name' => check_name, | ||
'status' => 3, | ||
'output' => "#{self.class.name} UNKNOWN: #{msg}" | ||
} | ||
send_client_socket(event.to_json) | ||
end | ||
end |
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# frozen_string_literal: true | ||
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require_relative 'chrony/version' | ||
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module Sensu | ||
module Plugins | ||
module Chrony | ||
class Error < StandardError; end | ||
end | ||
end | ||
end |
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# frozen_string_literal: true | ||
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module Sensu | ||
module Plugins | ||
module Chrony | ||
VERSION = '0.1.0' | ||
end | ||
end | ||
end |
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# frozen_string_literal: true | ||
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require_relative 'lib/sensu/plugins/chrony' | ||
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Gem::Specification.new do |spec| | ||
spec.name = 'sensu-plugins-chrony' | ||
spec.version = Sensu::Plugins::Chrony::VERSION | ||
spec.authors = ['Kevyn Lebouille'] | ||
spec.email = ['[email protected]'] | ||
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spec.summary = 'This plugin provides facilities for monitoring Chrony NTP' | ||
spec.homepage = 'https://github.com/opsone/sensu-plugins-chrony' | ||
spec.required_ruby_version = '>= 3.2.0' | ||
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spec.metadata['allowed_push_host'] = "TODO: Set to your gem server 'https://example.com'" | ||
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spec.metadata['homepage_uri'] = spec.homepage | ||
spec.metadata['source_code_uri'] = 'https://github.com/opsone/sensu-plugins-chrony' | ||
spec.metadata['changelog_uri'] = 'https://github.com/opsone/sensu-plugins-chrony/CHANGELOG.md' | ||
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# Specify which files should be added to the gem when it is released. | ||
# The `git ls-files -z` loads the files in the RubyGem that have been added into git. | ||
spec.files = Dir.chdir(__dir__) do | ||
`git ls-files -z`.split("\x0").reject do |f| | ||
(File.expand_path(f) == __FILE__) || f.start_with?(*%w[test/ spec/ features/ .git .circleci appveyor]) | ||
end | ||
end | ||
spec.bindir = 'bin' | ||
spec.executables = spec.files.grep(%r{\Abin/}) { |f| File.basename(f) } | ||
spec.require_paths = ['lib'] | ||
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# Uncomment to register a new dependency of your gem | ||
spec.add_dependency 'sensu-plugin', '~> 4.0' | ||
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# For more information and examples about making a new gem, check out our | ||
# guide at: https://bundler.io/guides/creating_gem.html | ||
end |