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data/bin/prometheus-config-builder CHANGED
@@ -39,7 +39,7 @@ op = OptionParser.new do |o|
39
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config[:verbose] = true
40
40
end
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o.on('--every=[seconds]', 'Rerun every n seconds') do |seconds|
42
- config[:every] = seconds
42
+ config[:every] = seconds.to_i
43
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end
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o.on('--pgrep=[string]', 'pgrep -f [string] for finding Prometheus process for SIGHUP') do |str|
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config[:pgrep] = str
@@ -52,7 +52,7 @@ if config[:verbose]
52
52
end
53
53
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54
abort "You need to set --prometheus-src" if !config[:prometheus_src]
55
- abort "You need to set --dst_dir" if !config[:dst_dir]
55
+ abort "You need to set --dst-dir" if !config[:dst_dir]
56
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log = Logger.new(STDOUT)
58
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log.level = config[:verbose] ? Logger::DEBUG : Logger::INFO
@@ -75,12 +75,14 @@ something_changed_count = PrometheusExporter::Client.default.register(:counter,
75
75
error_count = PrometheusExporter::Client.default.register(:counter, "prometheusconfigbuilder_errors_count", "Number of exceptions during evaluation.")
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iteration_count = PrometheusExporter::Client.default.register(:counter, "prometheusconfigbuilder_iteration_count", "Number of times configuration has changed.")
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iteration_duration = PrometheusExporter::Client.default.register(:gauge, "prometheusconfigbuilder_last_iteration_duration", "Duration (in seconds) of the last full config iteration")
78
+ config_has_errors = PrometheusExporter::Client.default.register(:gauge, "prometheusconfigbuilder_config_has_errors", "This value is 0 if the config has no errors.")
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error_count.observe(0)
80
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builder = PrometheusConfigBuilder::Builder.new(config[:prometheus_src], config[:dst_dir])
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config[:paths].each do |path|
85
+ log.info("Adding path #{path} to config discovery list")
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builder.add_path(path)
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end
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@@ -89,7 +91,9 @@ loop do
89
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starting = Time.now
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begin
91
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something_changed = builder.write_out()
94
+ config_has_errors.observe(0)
92
95
rescue Exception => e
96
+ config_has_errors.observe(1)
93
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log.warn("Error while building config: #{e}")
94
98
puts e.backtrace
95
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error_count.increment
@@ -103,10 +107,16 @@ loop do
103
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# Send a SIGHUP signal to Prometheus so that it knows to reload config files
104
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begin
105
109
if something_changed && config[:pgrep] != nil
106
- pid = `pgrep -f "#{config[:pgrep]}"`.split("\n").first.to_i
107
- if pid
108
- log.info("Sending SIGHUP signal to Prometheus at pid #{pid}.")
109
- Process.kill "HUP", pid
110
+ matches = `pgrep -a -f "#{config[:pgrep]}"`.split("\n")
111
+ match = matches.select {|e| !e.include?("prometheus-config-builder")}
112
+ if !match
113
+ log.warn("Unable to find Prometheus instance to send SIGHUP for. Matches object: #{matches}")
114
+ else
115
+ pid = match.first.split(" ").first.to_i
116
+ if pid
117
+ log.info("Sending SIGHUP signal to Prometheus at pid #{pid}.")
118
+ Process.kill "HUP", pid
119
+ end
110
120
end
111
121
end
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rescue Exception => e
data/lib/prometheus-config-builder/prometheus-config-builder.rb CHANGED
@@ -217,7 +217,7 @@ module PrometheusConfigBuilder
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files = []
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@paths.each do |path|
219
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found_files = @discoverer.discover(path)
220
- logger.info("Found #{files.length} files from path #{path}")
220
+ logger.info("Found #{found_files.length} files from path #{path}")
221
221
files.push(*found_files)
222
222
end
223
223
data/prometheus-config-builder.gemspec CHANGED
@@ -3,7 +3,7 @@
3
3
4
4
Gem::Specification.new do |s|
5
5
s.name = 'prometheus-config-builder'
6
- s.version = '0.0.14'
6
+ s.version = '0.0.20'
7
7
s.date = Time.now
8
8
9
9
s.summary = %q{Template based config generation}
metadata CHANGED
@@ -1,14 +1,14 @@
1
1
--- !ruby/object:Gem::Specification
2
2
name: prometheus-config-builder
3
3
version: !ruby/object:Gem::Version
4
- version: 0.0.14
4
+ version: 0.0.20
5
5
platform: ruby
6
6
authors:
7
7
- Juho Mäkinen juho.makinen@gmail.com
8
8
autorequire:
9
9
bindir: bin
10
10
cert_chain: []
11
- date: 2019-09-11 00:00:00.000000000 Z
11
+ date: 2019-10-07 00:00:00.000000000 Z
12
12
dependencies:
13
13
- !ruby/object:Gem::Dependency
14
14
name: aws-sdk
@@ -137,7 +137,7 @@ required_rubygems_version: !ruby/object:Gem::Requirement
137
137
version: '0'
138
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requirements: []
139
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rubyforge_project:
140
- rubygems_version: 2.5.2
140
+ rubygems_version: 2.5.2.3
141
141
signing_key:
142
142
specification_version: 4
143
143
summary: Template based config generation