Ever wondered how to configure your autoscale groups to tag the instances they spin up?
I’m not sure this is supported from the AWS Web Console, but here’s how to do it from the command line…
UPDATE: Amazon have now implemented this feature from the web console: http://aws.amazon.com/blogs/aws/tag-your-auto-scaled-ec2-instances/
Using the AWS CLI (ensuring the CLI is configured correctly with your auth creds when you set it up,etc) you can simply set your autoscale groups to propagate tags to instances at launch time:
aws autoscaling create-or-update-tags --tags ResourceId="your-autoscale-group",ResourceType=auto-scaling-group,Key="Name",Value="name-for-all-your-instances",PropagateAtLaunch=True --region us-west-2
where “your-autoscale-group” is the name of the ASG you want to affect and “name-for-all-your-instances” is an example of setting the “Name” tag on newly initialised instances belonging to the ASG.
You can however propagate any tags you want to your instances using different Key names.