Revision 450be5b5
Added by Greg Sutcliffe about 12 years ago
| lib/parser/functions/ip_to_cron.rb | ||
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# provides a "random" value to cron based on the last bit of the machine IP address.
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# used to avoid starting a certain cron job at the same time on all servers.
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# if used with no parameters, it will return a single value between 0-59
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# first argument is the occournce within a timeframe, for example if you want it to run 2 times per hour
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# the second argument is the timeframe, by default its 60 minutes, but it could also be 24 hours etc
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#
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# example usage
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# ip_to_cron() - returns one value between 0..59
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# ip_to_cron(2) - returns an array of two values between 0..59
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# ip_to_cron(2,24) - returns an array of two values between 0..23
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module Puppet::Parser::Functions
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newfunction(:ip_to_cron, :type => :rvalue) do |args|
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occours = (args[0] || 1).to_i
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scope = (args[1] || 60).to_i
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ip = lookupvar('ipaddress').to_s.split('.')[3].to_i
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base = ip % scope
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if occours == 1
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base
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else
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(1..occours).map { |i| (base - (scope / occours * i)) % scope }.sort
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end
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end
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end
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| lib/puppet/parser/functions/ip_to_cron.rb | ||
|---|---|---|
|
# provides a "random" value to cron based on the last bit of the machine IP address.
|
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|
# used to avoid starting a certain cron job at the same time on all servers.
|
||
|
# if used with no parameters, it will return a single value between 0-59
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# first argument is the occournce within a timeframe, for example if you want it to run 2 times per hour
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# the second argument is the timeframe, by default its 60 minutes, but it could also be 24 hours etc
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#
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# example usage
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# ip_to_cron() - returns one value between 0..59
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# ip_to_cron(2) - returns an array of two values between 0..59
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# ip_to_cron(2,24) - returns an array of two values between 0..23
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module Puppet::Parser::Functions
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newfunction(:ip_to_cron, :type => :rvalue) do |args|
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occours = (args[0] || 1).to_i
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scope = (args[1] || 60).to_i
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ip = lookupvar('ipaddress').to_s.split('.')[3].to_i
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base = ip % scope
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if occours == 1
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base
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else
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(1..occours).map { |i| (base - (scope / occours * i)) % scope }.sort
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end
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end
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end
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| manifests/cron.pp | ||
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ensure => stopped,
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}
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cron {'puppet':
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cron { 'puppet':
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command => "sleep $((RANDOM%59)) && /usr/sbin/puppet agent --config ${puppet::params::dir}/puppet.conf --onetime --no-daemonize",
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user => root,
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minute => ip_to_cron($puppet::params::cron_interval, $puppet::params::cron_range),
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}
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}
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| manifests/daemon.pp | ||
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class puppet::cron inherits puppet::service {
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class puppet::daemon inherits puppet::service {
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Service['puppet'] {
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enable => true,
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ensure => running,
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}
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cron { 'puppet': ensure => absent }
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}
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Also available in: Unified diff
Cleanup crontab if we switch to daemon mode