Install RPM with Puppet and execute script - puppet

Question

I have an RPM that installs a shell script. Puppet code needs to access this RPM, retrieve the shell script packaged in the RPM and execute it. How do I do that?

Answer 1

You can extract rpm scriptlets by
rpm -qp --script foo.rpm
Just beware that it contains ALL scripts (%pre, %post, %postun...) so you need to use sed or something similar to extract just that one script, save it to file and the run.

Answer 2

You'll need a package statement to install the rpm, and then an exec to run the shell script. Assuming your rpm is called my-shellscript.rpm, and is located in your module's files directory, and the rpm defines the install location as /tmp/my-shellscript.sh, then you'll have something like this,
class example {
package { 'my-shellscript.rpm' :
ensure => 'installed',
provider => 'rpm',
source => 'puppet:///modules/example/my-shellscript.rpm',
}
exec { 'my-shellscript.sh':
command => '/tmp/my-schellscript.sh',
require => Package['my-shellscript.rpm'],
}
}

Answer 3

To execute the script from your code, you need to perform the following steps :
Extract the contents of your rpm in some temporary directory.You can use rpmcpio utility for that.
rpm2cpio test.rpm |cpio -idmv
Find the location of script in your rpm file. you can use rpm command for that.
rpm -qpl test.rpm |grep "script.sh"
In your code, execute the script from the temporary location where you had extracted your rpm contents.
sh /tmp/test/xxx/script.sh