Puppet 3.6.2
First, I understand that Execs try not to run multiple times if called many
times by many resources and typically wait until they've all been
"collected" from all resources, but I have a specific case where I need
different Execs to run in a particular order based on a set of resources
that change.
The basic pattern is:
1. Install/update Configuration file (configuration gets updated on all
version changes)
2. Stop Exec script subscribes to Configuration file
3. Package Install/update notifies Start Exec script
4. Package requires Configuration file
The basic resource ordering in the manifest looks like:
require foo::config # This contains the File['Config'] resource
#This might be redundant, but trying to force this relationship
File['Config'] -> Package["foo"]
package { ["foo"]:
ensure => "${version}-${release}",
notify => Exec['start']
}
# Start, stop, restart functions for ads server
file {"/usr/local/sbin/control.sh":
source => "puppet:///modules/foo/control.sh",
ensure => present,
owner => root,
group => root,
mode => 0744,
}
exec { "stop":
path =>
"/usr/local/sbin/:/usr/local/jdk/bin:/bin:/sbin:/usr/sbin:/usr/bin",
command => '/usr/local/sbin/control.sh stop',
refreshonly => true,
logoutput => true,
subscribe => File['Config'],
require => File['/usr/local/sbin/control.sh']
}
exec { "start":
path =>
"/usr/local/sbin/:/usr/local/jdk/bin:/bin:/sbin:/usr/sbin:/usr/bin",
command => '/usr/local/sbin/control.sh start',
refreshonly => true,
logoutput => true,
require => File['/usr/local/sbin/control.sh']
}
However, when puppet apply runs this is what happens:
1. Configuration file is installed/updated, schedules a refresh of Stop
Exec
2. Package is installed, schedules refresh of Start Exec
3. Start Exec runs
4. Stop Exec runs
There's probably a better way of doing this (possibly with run stages), I'm
just curious why this plan does not work. I'm very open to improvements.
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