Searches AWS for zombie test servers

aws_zombies.rb

#!/usr/bin/env ruby

require 'aws-sdk'
require 'colorize'

AWS.config(
  access_key_id: ENV['AWS_ACCESS_KEY_ID'],
  secret_access_key: ENV['AWS_SECRET_ACCESS_KEY'])
if ARGV.any?
  security_group = ARGV[0]
elsif ENV['AWS_TESTING_SECURITY_GROUP']
  security_group = ENV['AWS_TESTING_SECURITY_GROUP']
else
  security_group = 'ci-testing'
end

puts "Searching for Instances in the '#{security_group}' security group"

ec2 = AWS::EC2.new

instances = ec2.security_groups.filter('group-name', security_group).first.instances

puts "Discovered #{instances.count} Test Instances.\n"
i = 0
stoppable = []
instances.each do |instance|
  i += 1
  line = " #{i}. #{instance.id} : #{instance.tags.Name} : #{instance.status}"
  if instance.status == :terminated
    puts line.red
  elsif instance.status == :running
    puts line.green
    stoppable << instance
  else
    puts line.yellow
  end
end
puts ''
if stoppable.any?
  stoppable.each do |instance|
    puts "Instance #{instance.id} (#{instance.tags.Name}) is #{instance.status}."
    print 'Would you like to terminate it? [yN]'
    if 'y' == gets.chomp
      print "Are you absolutely sure you wish to terminate instance #{instance.id} (#{instance.tags.Name}) [yN]".red
      if  'y' == gets.chomp
        puts "Terminating Instance #{instance.id} (#{instance.tags.Name})"
        instance.terminate
      else
        puts 'Ok, Won\'t Terminate Instance'.green
      end
    else
      puts 'Ok, Won\'t Terminate Instance'.green
    end
  end
end
puts 'Zombie Checking Complete'

Can run instance.stop in the last each block. Also can add a condition to line 18 to check created date/time

Updated to be significantly faster (Uses SecurityGroup.instances to get the list of just the testing instances instead of iterating through all instances)

Also added in ability to terminate instances right from the program.

@EdHurtig this is great. We've got evertrue/devops as a place for scripts like this; its got a scripts folder. Please put this in there, chmod +x, commit & push!