Get all EC2 Instance Types in All Availability Zones

instance-types.sh

#!/bin/bash

region="ap-northeast-2"
all_az=()

az_per_region=$(aws ec2 describe-availability-zones --region $region --query 'AvailabilityZones[*].[ZoneName]' --output text | sort)
while read -r az; do
  all_az+=($az)
done <<< "$az_per_region"

counter=1
num_az=${#all_az[@]}

for az in "${all_az[@]}"
do
  echo "Checking Availability Zone $az ($counter/$num_az)"
  region=$(echo $az | rev | cut -c 2- | rev)
  raw=$(aws ec2 describe-instance-type-offerings --location-type availability-zone --filters Name=location,Values=$az --region $region)
  instance_types=$(echo $raw | jq '.InstanceTypeOfferings[] | .InstanceType' | sort -u | sed -e 's/"//g' )
  while read -r instance_type; do
    echo "$region;$az;$instance_type" >> instance-types.csv
  done <<< "$instance_types"

  counter=$((counter+1))
done

sed -i '' '1s/^/REGION;AZ;TYPE\n/' instance-types.csv