List all AWS Lambda functions' reserved concurrency

list-reserved-concurrency.sh

#!/bin/bash

# Get all Lambda function names
function_names=$(aws lambda list-functions --query 'Functions[*].FunctionName' --output text)

echo "Lambda Functions with Reserved Concurrency:"
echo "-------------------------------------------"

# Check each function for reserved concurrency
for func in $function_names; do
  concurrency=$(aws lambda get-function-concurrency --function-name $func --query "ReservedConcurrentExecutions" --output text 2>/dev/null)

  # If the function has reserved concurrency (not "None")
  if [ "$concurrency" != "None" ]; then
    echo "Function: $func, Reserved Concurrency: $concurrency"
  fi
done