Codepipeline or API to automate the task of obtaining EC2 IP's after deployment

Question

I have a bunch of resources that get stood up as part of a regular deployment, i.e. worker EC2's. I need their IP's and to populate them into a config (But this is a post-deployment process) and it can become long/monotonous as its trivial work.

Is there any api calls or any features in AWS I can use to automate this? I'm fine with shell/bash/python.

Something in my head is to create a pipeline job that runs after the deployment pipeline, it queries or "scans" for the scope-named EC2's and then retrieves the IP's. Stores them for reference and then appends this to a config file I store in code commit. Possible?

Answer

You can use the AWS CLI - https://docs.aws.amazon.com/cli/latest/reference/ec2/describe-instances.html

or SDKs in the language of your choice. For example, the Python SDK would be - https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ec2.html#EC2.Client.describe_instances

Codepipeline or API to automate the task of obtaining EC2 IP's after deployment

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