make AMIs public in all AWS regions

make-amis-public.sh

#!/bin/bash

# Run with a filter for image names like:
#
#  ./make-amis-public.sh capa-ami-flatcar*
#

if [ -z "$1" ] ; then
    echo "Please pass the name of the AMI"
    exit 1
fi

IMAGE_FILTER="${1}"

declare -a REGIONS=($(aws ec2 describe-regions --output json | jq -r '[.Regions[].RegionName] | join(" ")'))

for REGION in "${REGIONS[@]}" ; do
    AMI_IDS=$(aws ec2 describe-images --query 'Images[*].[ImageId]' --filters "Name=name,Values=${IMAGE_FILTER}" --region "${REGION}" --output text)
    for AMI_ID in ${AMI_IDS}; do
        echo "region ${REGION}: making public AMI ${AMI_ID} ..."
        aws ec2 modify-image-attribute --region "${REGION}" --image-id "${AMI_ID}" \
            --launch-permission "Add=[{Group=all}]"

        echo "image attributes of AMI ${AMI_ID} ..."
        aws ec2 describe-image-attribute --region "${REGION}" --image-id "${AMI_ID}" \
            --attribute launchPermission
    done
done