snapshoting_tagging.rb

cron "chef-snapshot-backup" do
  user "root"
  hour "*"
  minute "0"
  command "pgrep chef-client >/dev/null || chef-client -o 'recipe[zaas::snapshot-backup]' --no-color --force-logger --logfile /var/log/chef-client.log >> /var/log/chef-client.log 2>&1"
end

ruby_block "create_snapshot" do
  block do
    require "net/http"
    require "uri"
    
    uri = URI.parse('http://169.254.169.254/latest/meta-data/instance-id')
    response = Net::HTTP.get_response(uri)
    instance_id = response.body
    
    time = Time.new
    
    volume_id = ''
    mountpoint = ''
    
    if node['region'] then
      region = node['region']
    else
      region = 'us-east-1' 
    end
    
    volumes = %x[source /etc/profile;/opt/aws/bin/ec2-describe-instances --region #{region} #{instance_id} | awk '/vol-*/ {print $2 " " $3}'].strip
    
    volumes.split("\n").each { |vol| 
      volar = vol.split(" ") 
      
      if volar[0] == '/dev/sdh1' then
        mountpoint = volar[0]
        volume_id = volar[1]
      end
         
    }
    
    mountpoint = "/opt/zenoss"
    
    if node['zaas'] and node['zaas']['backup'] and node['zaas']['backup']['snapshot-mount'] then
      mountpoint = node['zaas']['backup']['snapshot-mount']
    end
    
    sync = %x[sync]
    freeze = %x[xfs_freeze -f #{mountpoint}]
    ss = %x[source /etc/profile;/opt/aws/bin/ec2-create-snapshot --region #{region} #{volume_id} -d #{instance_id}_#{volume_id}].strip
    thaw = %x[xfs_freeze -u #{mountpoint}]
    
    snapshot_id = ss.split(" ")[1]
    snapdate = time.strftime("%Y-%m-%d")
    snaptime = time.strftime("%H:%M:%S")  
    
    if node.has_key?('elasticsearch') and node["elasticsearch"]["cluster"]["name"] != ''
      stackname=node["elasticsearch"]["cluster"]["name"]
    else
      stackname=node["cluster"]["name"]
    end
  
    tags = %x[source /etc/profile;/opt/aws/bin/ec2-create-tags --region #{region} #{snapshot_id} --tag Volume=#{volume_id} --tag Device=/dev/sdh1 --tag Date=#{snapdate} --tag=Instance=#{instance_id} --tag Name=#{stackname} --tag Time=#{snaptime}].strip
    
  end
  action :create
end