Simple hubot script to get information about an instance

ec2.coffee

util = require 'util'

init_aws = () ->
    aws = require 'aws-sdk'
    return aws

module.exports = (robot) ->
  robot.respond /ec2 get-instance (.*)$/i, (msg) ->
    ins_id  = msg.match[1].trim()
    if ins_id.match /i-.*/
      params = { InstanceIds: [ins_id] }
    else
      params = { Filters: [ { Name: "private-ip-address", Values: [ ins_id ] } ] }

    msg_txt = "Fetching #{ins_id}"
    msg.send msg_txt

    aws = init_aws()
    aws.config.region="us-east-1"
    ec2 = new aws.EC2({apiVersion: '2014-10-01'})

    ec2.describeInstances (params), (err, res) ->
      if err
        msg.send "DescribeInstancesError: #{err}"
      else
        if res.Reservations.length == 0
          msg.send "Nothing found for #{ins_id}"
        else
          msg.send util.inspect(res.Reservations[0].Instances[0], false, null)