Get the number of pods per running instance type

pods_per_running_instance_type.sh

#!/bin/bash

export AWS_PROFILE=default

aws ec2 describe-instances --region ap-northeast-2 \
  | jq '.Reservations[] | .Instances[] | {type: .InstanceType, tag: .Tags[] | select(.Key=="Name").Value}' \
  | jq -s '.'  \
  | jq 'sort_by(.type) | group_by(.type)[] | {
      type: .[0].type,
      name: map(.tag)} | "\( .type ): \( .name | join(", ") )"' | tr -d \" | awk -F '' '{if (NF > 110) {print substr($0, 0, 110)".."} else print $0}' \
  | xargs -I {} bash -c 'T="{}"; curl -s -L https://raw.githubusercontent.com/awslabs/amazon-eks-ami/master/files/eni-max-pods.txt | grep ${T%:*}; printf "> ${T#*:}\n";';