List All private IP except few tag names from awscli

Question

How to get list of all private Ip's of AWS instances except few tags from AWS CLI?

I can get all IP from below command

aws ec2 describe-instances --query "Reservations[].Instances[][PrivateIpAddress]"

I want to exclude IP's from tag "webinstance" & "frontendinstances" How to use filter for this.

aws ec2 describe-instances --filters "Name=tag:stack-name,Values=webinstance" --query 'Reservations[].Instances[].[PrivateIpAddress]'

From above I get Ip's related to that specific tag, but dont know how to exclude it.

Answer 1

EC2 Describe Instances API does not support exclusions in filters.

You might be able to achieve the result using some bash scripts using below approach:

• List A: Query all the instances you want.
• List B: Query the instances you want to exclude
• Use grep: -v - Invert the sense of matching, to select non-matching lines to exclude the items from List B.