Delete AWS Log Groups that haven't been touched in X days

Question

Is there a way to delete all AWS Log Groups that haven't had any writes to them in the past 30 days?

Or conversely, get the list of log groups that haven't had anything written to them in the past 30 days?

Answer 1

I have been using aws-cloudwatch-log-clean and I can say it works quite well.

you need boto3 installed and then you:

./sweep_log_streams.py [log_group_name]

It has a --dry-run option for you to check it what you expect first.

A note of caution, If you have a long running process in ECS which is quiet on the Logs, and the log has been truncated to empty in CW due to the logs retention period. Deleting its empty log stream can break and hang the service, as it has nowhere to post its logs to...