On Jun 23, 2011, at 6:17 PM, Nigel Kersten wrote:
> On Thu, Jun 23, 2011 at 4:07 PM, Craig White <[email protected]> wrote:
>> class nginx::install {
>> $prerequisites = [ "build-essential", "libcurl4-openssl-dev", "libssl-dev",
>> "zlib1g-dev" ]
>> case $operatingsystem {
>> centos, redhat: {
>> }
>> debian, ubuntu: {
>> package { $prerequisites : ensure => "installed" :
>> ensure => present {
>> exec { "Installing nginx via passenger":
>> path => "/bin:/usr/bin",
>> environment => "HOME=/root",
>> command => "passenger-install-nginx-module --auto-download
>> --auto",
>> user => "root",
>> group => "root",
>> unless => "ls -l /opt | grep nginx",
>> logoutput => on_failure,
>> }
>> }
>> file {"/etc/init.d/nginx":
>> source => "puppet:///modules/nginx/nginx-initd",
>> owner => root,
>> group => root,
>> mode => 755,
>> require => Class["nginx::install"],
>> notify => Class["nginx::service"],
>> }
>> }
>> }
>> }
>> }
>>
>> The above has a syntax error on line 7 and the catalog won't build but
>> essentially I want to 'ensure' that the pre-requsite packages are installed
>> prior to attempting to execute the command (because if the pre-requisites
>> aren't there, the command will fail).
>
> That definitely won't compile :)
>
> You should be able to just declare the exec and package(s) resources
> separately and define a relationship, like:
>
> exec { "Installing nginx via passenger":
> path => "/bin:/usr/bin",
> environment => "HOME=/root",
> command => "passenger-install-nginx-module --auto-download --auto",
> user => "root",
> group => "root",
> unless => "ls -l /opt | grep nginx",
> logoutput => on_failure,
> require => Package[$prerequisites],
> }
>
> That last line should work for you. Otherwise you could define it the
> opposite way around:
>
> package { $prerequisites:
> ensure => installed,
> before => Exec["Installing nginx via passenger"],
> }
>
> Both those methods should work, but I have a vague memory of the first
> method failing in a point release or two.
>
> What version of Puppet are you running? You may have a much clearer
> way of expressing the conditional you're using than the somewhat messy
> case statement you're using at the moment.
----
puppet 2.6.8
Your first example would necessitate creating installation class for those
pre-requisite packages which I was hoping to just slide by without doing. In
fact, my way that I did it sort of worked with a little tweaking but it seemed
to try to install nginx before the pre-requisite packages so the first tine
through, it would time out on the command but load the pre-requisite packages
afterwards and then the second time through, it would install via the command
which was messy.
this is where I am at at the moment...
class nginx::install {
case $operatingsystem {
centos, redhat: {
}
debian, ubuntu: {
exec { "Installing nginx via passenger":
path => "/bin:/usr/bin",
environment => "HOME=/root",
command => "passenger-install-nginx-module --auto-download
--auto",
user => "root",
group => "root",
unless => "ls -l /opt | grep nginx",
logoutput => on_failure,
require => Class["gems::passenger", "nginx::prerequisites"]
}
}
}
}
and still the 'require' doesn't seem to be executed prior to evaluating the
'command' to exec - which still gives me issues.
Craig
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