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| -rwxr-xr-x | munin/owfs_temperature_ | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/munin/owfs_temperature_ b/munin/owfs_temperature_ new file mode 100755 index 0000000..203aa0d --- /dev/null +++ b/munin/owfs_temperature_ @@ -0,0 +1,93 @@ +#!/usr/bin/ruby +# +# Copyright (c) 2006 Peter Palfrader +# +#%# family=auto +#%# capabilities=autoconf suggest +# +# Munin plugin to moniture temperatures reported by 1-wire devices +# +# I use owfs to mount the 1-wire bus to /var/lib/owfs +# http://owfs.sourceforge.net/ +# +# Add the following to your /etc/munin/plugin-conf.d/munin-node: +# [owfs_temperature_10.D234EE000800] +# env.title = 'in rack 3' +# env.label = 'rack 3' +# + +$owfs_path = '/var/lib/owfs' +$owfs_path = ENV['OWFSPATH'] if ENV['OWFSPATH'] + +def bail_out(m) + STDERR.puts "#{$0}: #{m}" + exit 1 +end + +def autoconf + if File.directory?($owfs_path) + if File.directory?($owfs_path + '/structure') + puts "yes" + else + puts "no (#{$owfs_path}/structure does not exist or permission denied - owfs not mounted?)" + end + else + puts "no (#{$owfs_path} does not exist or permission denied)" + end +end +def suggest + Dir.glob($owfs_path+'/[0-9A-F][0-9A-F].*/temperature').each do |path| + puts File.basename(File.dirname(path)) + end +end + +def normalize_sensor(s) + s = s.downcase + s = s.tr('-', 'M') + s = s.tr('+', 'P') + s.tr('^a-zA-Z0-9', '_') +end + +def query_device + match = /_([0-9A-F][0-9A-F]\..*?)$/.match($0) + unless match + bail_out "Could not figure out which device you want based on executeable name." + end + match[1] +end + +def config + device = query_device + title = ENV['title'] ? + ENV['title'] : + device + label = ENV['label'] ? + ENV['label'] : + device + puts "graph_title Temperatures #{title}" + puts "graph_args --base 1000" + puts "graph_vlabel degrees Celsius"; + puts "graph_category sensors" + puts "graph_info Temperature reported by 1-wire devices" + n = normalize_sensor device + puts "#{n}.label #{label}" +end + +def report + device = query_device + temp = File.new($owfs_path+'/'+device+'/temperature').read + n = normalize_sensor device + puts "#{n}.value #{temp}" +end + + +case ARGV[0] + when "autoconf" + autoconf + when "suggest" + suggest + when "config" + config + else + report +end |