Calculate the storage used by an ECR repository

aws-ecr-calculate-storage.sh

#!/bin/bash
# Based on https://stackoverflow.com/a/78081105/2099911
ECR_REPO=...
REGION=...
total_size=0

echo "Retrieving image details for $ECR_REPO..."
image_details=$(aws ecr describe-images --repository-name $ECR_REPO --region $REGION --no-cli-pager)
echo "Done; calculating the total size..."
for row in $(echo "${image_details}" | jq -c '.imageDetails[]'); do
    size_bytes=$(echo "${row}" | jq -r '.imageSizeInBytes')
    total_size_bytes=$((total_size_bytes + size_bytes))
done

total_size_gb=$(echo "scale=2; $total_size_bytes / (1024 * 1024 * 1024)" | bc)

echo "Total size of all images in $ECR_REPO: ${total_size_gb} GB"