So, I have this partially working.
in /etc/puppet/manifests/nodes.pp I have (all entries truncated and
scrubbed):
node node_example {
class { 'ganglia::install::gmetad':
clusters => [
'cluster1',
'cluster2',
'cluster3',
'cluster4',
]
}
and under /etc/puppet/modules/ganglia/install/gmetad.pp
class ganglia::install::gmetad () {
define generate_gmond_init(
$init_template = 'ganglia/gmond_init.erb',
$conf_template = 'ganglia/gmond_master_conf.erb',
) {
file { "/etc/init/gmond_${name}.conf":
content => template("$init_template"),
}
file { "/etc/ganglia/gmond_${name}.conf":
content => template("$conf_template"),
}
}
generate_gmond_init{ $clusters: }
}
Now, in each template I can call
<%= name %>
in order to call the name var as it passes through each array.
I need to make this a little more complicated by adding more than a single
bit of information; i.e. I need to create a hash of clusters, each with
their own data, something like this:
clusters => {
'cluster1' => { port => 8655 },
'cluster2' => { port => 8656 },
'cluster3' => { port => 8657 },
'cluster4' => { port => 8658 },
}
so that I can access more than just the cluster name in each template.
On Friday, July 25, 2014 6:56:57 AM UTC-7, Yanis Guenane wrote:
>
>
>
> On 07/24/2014 08:08 PM, senorsmile wrote:
> > For example, I have an array like this:
> >
> > clusters => [
> > 'cluster1',
> > 'cluster2',
> > 'cluster3',
> > 'cluster4',
> > ]
> >
> >
> >
> > I then have a cluster.init.erb that looks soemthing like this:
> >
> > start on runlevel [2345]
> > stop on runlevel [!2345]
> >
> > expect fork
> > respawn
> >
> > <% @clusters.each do | cluster | -%>
> > env PIDFILE="/var/run/${cluster}.pid"
> >
> > exec /usr/sbin/program_name --pid-file=$PIDFILE
> > <% end -%>
> >
> >
> > That is all theoretical at this point since it doesn't work.
> > What I need it to do is dynamically generate a certain number of files,
> > equal to the number of files in the array "clusters", whose names I will
> > not know beforehand, and changes from host to host.
> >
>
> You could create a define that would be an intermediate layer. Code
> would look like the following :
>
> Manifest
> --------
>
> $clusters = ['cluster1', 'cluster2', 'clustern']
>
> myclass::mydefine {$clusters : }
>
>
> Define
> ------
>
> class myclass::mydefine {
>
> $path = "/tmp/${name}"
>
> file { $path :
> ensure => present,
> content => template('myclass/foo.erb'),
> }
>
> }
>
> Template
> --------
>
> Find my value <%= @name %>
>
>
> Hope this helps,
>
> --
> Yanis Guenane
>
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