ec2_attributes = {
  "KeyName": "jerome-asselin",
  "AdditionalSlaveSecurityGroups": [
    "sg-029b91ceeaefb6476"
  ],
  "InstanceProfile": "EMR_EC2_DefaultRole",
  "SubnetId": "subnet-0754465ed54c02d90",
  "EmrManagedSlaveSecurityGroup": "sg-0159de9fe73fcf544",
  "EmrManagedMasterSecurityGroup": "sg-00c54fca413143f23",
  "AdditionalMasterSecurityGroups": [
    "sg-029b91ceeaefb6476"
  ]
}