Integration: Amazon Linux AMI Update Notification

AWS maintains three operating systems:

• Amazon Linux
• Amazon ECS-optimized Linux
• Amazon Linux 2

When AWS releases a new AMI version (e.g., because of important security updates), AWS publishes a message on one of the following public SNS topics:

• Amazon Linux: arn:aws:sns:us-east-1:137112412989:amazon-linux-ami-updates
• Amazon ECS-optimized Linux: arn:aws:sns:us-east-1:177427601217:ecs-optimized-amazon-ami-update
• Amazon Linux 2: arn:aws:sns:us-east-1:137112412989:amazon-linux-2-ami-updates

You should update your running EC2 instances as fast as possible if a new AMI is released. You can subscribe to the public SNS topics from AWS and forward AMI Update Notification into your marbot Slack channel.

Subscribing to a public SNS topics from AWS

1. Visit https://console.aws.amazon.com/sns/v2/home?region=us-east-1 and ensure that you are in the N. Virgina (us-east-1) region
2. Click on the Subscriptions link on the left
3. Click on the Create subscription button
   
4. Set Topic ARN to one of the public SNS topics (e.g. arn:aws:sns:us-east-1:137112412989:amazon-linux-ami-updates)
5. Set Protocol to HTTPS
6. Set Endpoint to https://api.marbot.io/v1/endpoint/$endpoint-ID. Replace $endpoint-ID with the ID of your endpoint. You can get this value by asking @marbot for it on your Slack channel.
7. Save by clicking the Create subscription button.
   

Sample Alert

When a new AMI is released, you should receive an alert in Slack like this: