AWS-ListAllAMIsInUse.sh

#!/usr/bin/env bash
# This script list all AMIs in use in all regions in an account
# Author: [email protected]

# Check if AWS CLI is installed
if ! command -v aws &> /dev/null; then
    echo "AWS CLI could not be found"
    exit
fi

# Check if AWS CLI is configured
if ! aws sts get-caller-identity &> /dev/null; then
    echo "AWS CLI is not configured"
    exit
fi

# List all AMIs in use in all regions
for region in $(aws ec2 describe-regions --output text | awk '/REGION/ {print $NF}' | sort); do
    echo "Listing region: $region"
    AMIs="" # Reset AMIs
    for AMI in $(aws ec2 describe-instances --query "Reservations[*].Instances[*].{ImageId:ImageId}" --output=text --region "$region" | sort -u); do
        if [ -n "$AMI" ]; then
            AMIs+=" $AMI"
        fi
    done
    if [ -n "$AMIs" ]; then
        printf "\nListing AMIs:%s in region:%s\n" "$AMIs" "$region"
        aws ec2 describe-images --filters "Name=state,Values=available" "Name=image-type,Values=machine" --image-ids $AMIs --query "Images[*].{ImageId:ImageId,Location:ImageLocation,Name:Name}" --output=table --region "$region"
    fi
done