blackhole-dynamo-stress.yml

---
schemaVersion: '2.2'
description: Block access to dynamo on an instance
parameters:
  duration:
    type: String
    description: The duration - in seconds - of the attack. (Required)
    default: "60"
mainSteps:
- action: aws:runShellScript
  name: ChaosBlackholeDynamoAttack
  inputs:
    runCommand:
    # Block some Amazon DynamoDB API endpoints, add yours :)
    # make copy of /etc/hosts to /etc/host.back
    - sudo cp /etc/hosts /etc/hosts.back
    - echo "127.0.0.1 dynamodb.us-east-1.amazonaws.com" >> /etc/hosts
    - echo "127.0.0.1 dynamodb.us-east-2.amazonaws.com" >> /etc/hosts
    - echo "127.0.0.1 dynamodb.us-west-1.amazonaws.com" >> /etc/hosts
    - echo "127.0.0.1 dynamodb.us-west-2.amazonaws.com" >> /etc/hosts
    - echo "127.0.0.1 dynamodb.eu-west-1.amazonaws.com" >> /etc/hosts
    - echo "127.0.0.1 dynamodb.eu-north-1.amazonaws.com" >> /etc/hosts
    - sleep {{ duration }}
    # copy back the old version  /etc/hosts
    - sudo cp /etc/hosts.back /etc/hosts