ecr-cost-usage.sh

#!/usr/bin/env bash

# discover what values you can use for a given service in the last 3 months
#
# aws ce get-dimension-values \
#  --dimension SERVICE \
#  --time-period Start=$(date -v-3m +%Y-%m-01),End=$(date +%Y-%m-01) \
#  --query 'DimensionValues[*].Value'
  
# last 3 months of ecr usage/spend
# typically this is grouped into DataTransfer-Out-Bytes and TimedStorage-ByteHrs
# where TimedStorage-ByteHrs is the majority of your spend for larger docker images
# see ecr pricing page for more details on costs https://aws.amazon.com/ecr/pricing/
aws ce get-cost-and-usage \
  --time-period Start=$(date -v-3m +%Y-%m-01),End=$(date +%Y-%m-01) \
  --granularity MONTHLY \
  --metrics "UsageQuantity" "AmortizedCost" \
  --group-by Type=DIMENSION,Key=USAGE_TYPE \
  --filter "$(cat <<'EOF'
{
 "Dimensions": {
    "Key": "SERVICE",
    "Values": ["Amazon EC2 Container Registry (ECR)"]
 }
}
EOF
)" --query "ResultsByTime[*]" --output json