AWS ec2 EBS snapshot management

manage_snapshots.rb

#!/usr/bin/env ruby

# cleaned up a bit, makes use of memoize to better handle queries to the EC2 backend, less calls == faster.


require 'rubygems'
require 'aws-sdk'

regions = [
  "ec2.us-east-1.amazonaws.com",
  "ec2.us-west-1.amazonaws.com",
  ]

DEBUG = false

targetDate = Time.now - (60 * 60 * 24 * 14)

ACCESS_KEY_ID="SCRUBBED"
SECRET_ACCESS_KEY="SCRUBBED"

regions.each do |region|
  puts region if DEBUG
  AWS.config({
    :access_key_id => ACCESS_KEY_ID,
    :secret_access_key => SECRET_ACCESS_KEY,
    :ec2_endpoint => "#{region}",
    :max_retries => 2,
  })
  ec2 = AWS::EC2.new
  AWS.memoize do
    delshots = ec2.snapshots.with_owner(:self)
    puts delshots.count if DEBUG
    delcounter = delshots.count
    delshots.each do |snap|
      delcounter-=1
      puts delcounter if DEBUG
      next if not snap.start_time < targetDate
      next if snap.description =~ /created/i
      begin
        puts "#{snap.id}\t#{snap.start_time}\t#{snap.description}" if DEBUG
        snap.delete
      rescue => e
        puts "opps"
        next
      end
    end
  end
  sleep 60

  # create snapshots
  AWS.memoize do
    ec2.volumes.each do |vol|
      next if not vol.size > 9
      $attempt = 1
      begin
        puts "#{vol.id}\t#{vol.tags['Name']}\t#{vol.size}\t#{vol.status}" if DEBUG
        vol.create_snapshot("Snapshot of #{vol.tags['Name']}")
      rescue => e
        if $attempt == 1
          $attempt +=1
          retry
        else
          puts e.backtrace if DEBUG
          next
        end
      end
    end
  end
end