machine_tag search example

cassandra_tag.rb

include_recipe "machine_tag::default"

# Tag host with seed status
machine_tag "cassandra:seed_host=#{node[:cassandra][:is_seed_host]}" do
  action :create
end

# Tag host with broadcast and listen addresses for discovery
machine_tag "cassandra:broadcast_address=#{node[:cassandra][:broadcast_address]}" do
  action :create
end

machine_tag "cassandra:listen_address=#{node[:cassandra][:listen_address]}" do
  action :create
end

machine_tag.rb

class Chef::Recipe
  include Chef::MachineTagHelper
end

include_recipe 'machine_tag::default'

Chef::Log.info 'Beginning gluster search'
glusterfs_peers = []
tags_results = tag_search(node, 'gluster:server=true')
Chef::Log.info 'tags:' + tags_results.inspect

tags_results.each do |itemlist|
    ip_address = itemlist['server:private_ip_0'].first.split('=').last
    Chef::Log.info ' Here are the ips addresses that we got from ruby block of gluster peer: #{ip_address}'
    glusterfs_peers << ip_address
end