Create an Amazon user with the following IAM security policy and save their credentials

{
    "Statement":[{
        "Effect":"Allow",
        "Resource":[
            "*"],
        "Action":[
            "glacier:*"]}
    ]
}

Here’s some shitty code you can try
the “multipart_chunk_size” must be a power of 2 multiple of 1MB

#!/usr/bin/env ruby

require 'rubygems'
require 'fog'

glacier = Fog::AWS::Glacier.new(
    :aws_access_key_id => 'MYACCESSKEY',
    :aws_secret_access_key => 'MYSUPERSECRETKEY')

vault = glacier.vaults.create :id => 'myvault'
archive1 = vault.archives.create :body => File.new('MYFILE.tar.gz'), :multipart_chunk_size => 1024*1024, :description => "adding some archive BLAH"
puts archive1.inspect

The output should show you some info about your upload job

You’re going to want to store your job id so and the object related information for later incase you want to do a fetch of the object

</pre>
<Fog::AWS::Glacier::Archive
 id="dAisPrlq.......jTzjr64Xeg",
 description="adding some archive BLAH",
 body=#<File:MyFile.tar.gz>
 >
<pre>

Retreiving archives is a two step process
1. Create a job to pull the archive into a downloadable state ( archive-retrieval )
2. Pull down the bytes after the job is done and the archive is ready for download ( get archive-output )
References:
http://www.spacevatican.org/2012/9/4/using-glacier-with-fog/
http://blog.vuksan.com/2010/07/20/provision-to-cloud-in-5-minutes-using-fog/