Greetings,
I am working on streamlining some older puppet code, that uses a lot of
Exec resources to accomplish it's purposes. It's not terribly elegant and
we're working on design to replace it with code that leverages puppet
features. One of the pieces I'm struggling with is how to set complex
environment variables that are available to use in onlyif/unless statements
as well as the command itself. I'm wondering if this just isn't possible?
Here's an example with the aide. NOTE that we're not in a spot where I can
make puppet manage the aide config file, and thus use an aide module and
parameters instead of shell variables. All of these commands run
successfully in a bash shell for the various conditions that would apply.
I have other similar scenarios, but aide is one of the more complex ones.
exec { 'init-aide-database':
path =>
'/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin',
environment => [ 'DBDIR=$(egrep \'^@@define DBDIR \' /etc/aide.conf|awk
\'{print $NF}\')',
'DBFILE=$(egrep \'^database=file\' /etc/aide.conf|awk -F/ \'{print
$NF}\')',
'DBNEW=$(egrep \'^database_out=file\' /etc/aide.conf|awk -F/ \'{print
$NF}\')',
],
command => '/usr/sbin/aide --init >/dev/null 2>&1 && cp -p
${DBDIR}/${DBNEW} ${DBDIR}/${DBFILE}',
unless => 'test -f ${DBDIR}/${DBNEW} && test -f ${DBDIR}/${DBFILE}'
,
require => Package['aide'],
logoutput => true,
timeout => 0,
}
When executing, puppet always runs the exec because the env var's are
empty, so the unless case always fails. Then we get a scenario where we're
running aide --init when it's not needed and the cp command throws an error
due to empty variables.
My thought at the moment is that I need to build two shell scripts as file
resources. One to call in the unless test, and another to call in the
command if the unless script fails. Perhaps that's more elegant, but we're
hoping to avoid delivering script files to the nodes wherever possible.
I'm hoping the gurus out here might point me in the best direction!
Thank you kindly!
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