Get Amazon EC2 spot instances pricing summary

README.md

Requirements

• R
• awscli

Usage

[pataiji@mbp ~]$ spot-price -t m4.large -s '2017-01-01'
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
0.02180 0.02540 0.03230 0.03375 0.03990 0.10000

spot-price

#!/bin/sh

echo_help() {
  echo "usage: spot-price -t instance-types -s start-time [-e end-time] [-p profile] [-r region]" 1>&2
  exit 1
}

main_args=''
sub_args="--product-descriptions 'Linux/UNIX'"

while getopts p:t:s:e:r: opts
do
  case "$opts" in
    p)
      main_args="$main_args --profile '$OPTARG'"
      ;;
    r)
      main_args="$main_args --region '$OPTARG'"
      ;;
    t)
      sub_args="$sub_args --instance-types '$OPTARG'"
      ;;
    s)
      sub_args="$sub_args --start-time '$OPTARG'"
      ;;
    e)
      sub_args="$sub_args --end-time '$OPTARG'"
      ;;
    *)
      echo_help
      ;;
  esac
done
shift $((OPTIND - 1))

(echo "$sub_args" | grep -q -- --instance-types && echo "$sub_args" | grep -q -- --start-time) || echo_help

cmd="aws ${main_args} ec2 describe-spot-price-history ${sub_args}"

eval "$cmd" | jq '.SpotPriceHistory[].SpotPrice' | sed 's/"//g' | summary

summary

#!/usr/bin/env Rscript

# http://unix.stackexchange.com/questions/13731/is-there-a-way-to-get-the-min-max-median-and-average-of-a-list-of-numbers-in
d<-scan("stdin", quiet=TRUE)
summary(d)