Problem using resources and types from puppetlabs/lvm

[Andy Stevens]

Hi,

I'm struggling to make use of the resources and types provided by puppetlabs/lvm.

If I attempt to make use of the various resource types i.e. filesystem, lvm etc. from within my nodes.pp then I have no problem at all.  However if I attempt to reference them from a class I have created, when i invoke puppet agent --test I get the output below:

Error: Failed to apply catalog: Could not find dependency Filesystem[/dev/mapper/root_vg-WebSphere] for File.........

I'm guessing that my custom class can't see within it's scope the various resources and types provided by puppetlabs/lvm?  So how do I resolve this?  the puppetlabs/lvm isn't a class so I can't include it.

Any assistance would be greatly appreciated



Thanks

Andy

[Chris McDermott]

I'm kind of guessing, but it might be that you need to push out the custom providers to the client. Try putting "pluginsync = true" in the [agent] section of your puppet.conf on that client, and try again.

Chris

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[Andy Stevens]

Chris,

Already have the pluginsync directive in the [agent] section of my puppet.conf - thanks for covering that off anyway.  I've included the relevant Puppet manifest snippets below as I could be doing something very very silly at a code level that someone could identify:

Firstly I have declared a class called 'websphere' which resides in /etc/puppet/modules/websphere and my class code is in the init.pp file located at /etc/puppet/modules/websphere/manifests. The code for this is as follows:

/etc/puppet/modules/websphere/manifests/init.pp

class websphere::deploy {

  include lvm::filesystem

  file { "/opt/wasadmin/backup/build_NdmBase.tar":

    source  => "puppet:///files/build/websphere/build_NdmBase.tar",

    mode    => 0640,

    owner   => "wasadmin",

    group   => "wasgrp",

    require => Filesystem[ "/dev/mapper/root_vg-WebSphere" ],

  }

}

The second component is my node definition which occurs on the nodes.pp file, as follows:

/etc/puppet/manifests/nodes.pp

node websphereNode inherits base {

  include websphere::deploy

}

The third component is actually specifying an instance of the above node, as follows:

/etc/puppet/manifests/nodes.pp

node "node.foo.com" inherits websphereNode {

}

I also have the puppetlabs/lvm module installed in the /etc/puppet/modules directory.

Hope the code I have included in this response is of assistance to someone to help me resolve this issue.

Thanks

[Chris McDermott]

I don't see where you declare this resource:

    require => Filesystem[ "/dev/mapper/root_vg-WebSphere" ],

In order to require that, you would first need to declare it somewhere, for instance:

filesystem { '/dev/mapper/root_vg-WebSphere':

  ensure => present,

  fstype  => 'ext4',

}

Of course, that will only format a filesystem on that device node - it wouldn't set up a volume group or logical volume or mount point or anything else. In fact, I think a normal use of the puppetlabs-lvm module would look something more like this:

lvm::volume { 'WebSphere':

  ensure => present,

  pv        => '/dev/sdb',

  vg        => 'WebSphere',

  fstype  => 'ext4',

  before  => File['/opt/wasadmin'],

}

file { '/opt/wasadmin':

  ensure => directory

}

mount { '/opt/wasadmin':

  ensure => mounted,

  device  => '/dev/WebSphere/WebSphere',

  fstype  => 'ext4',

  require => File['/opt/wasadmin'],

}

And then in your websphere::deploy you could:

require => Mount['/opt/wasadmin']

And that would ensure that the whole stack was created - the physical volume, the volume group, the logical volume, the filesystem, and that it was mounted under /opt/wasadmin.

Chris