How to see all running Amazon EC2 instances across all regions?

Question

I switch instances between different regions frequently and sometimes I forget to turn off my running instance from a different region. I couldn\'t find any way to see all the r

Answer 1

My script below, based on various tips from this post and elsewhere. The script is easier to follow (for me at least) than the long command lines.

The script assumes credential profile(s) are stored in file ~/.aws/credentials looking something like:

[default]
aws_access_key_id = foobar
aws_secret_access_key = foobar

[work]
aws_access_key_id = foobar
aws_secret_access_key = foobar

Script:

#!/usr/bin/env bash

#------------------------------------#
# Script to display AWS EC2 machines #
#------------------------------------#

# NOTES:
# o Requires 'awscli' tools (for ex. on MacOS: $ brew install awscli)
# o AWS output is tabbed - we convert to spaces via 'column' command


#~~~~~~~~~~~~~~~~~~~~#
# Assemble variables #
#~~~~~~~~~~~~~~~~~~~~#

regions=$(aws ec2 describe-regions --output text | cut -f4 | sort)

query_mach='Reservations[].Instances[]'
query_flds='PrivateIpAddress,InstanceId,InstanceType'
query_tags='Tags[?Key==`Name`].Value[]'
query_full="$query_mach.[$query_flds,$query_tags]"


#~~~~~~~~~~~~~~~~~~~~~~~~#
# Output AWS information #
#~~~~~~~~~~~~~~~~~~~~~~~~#

# Iterate through credentials profiles
for profile in 'default' 'work'; do

    # Print profile header
    echo -e "\n"
    echo -e "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
    echo -e "Credentials profile:'$profile'..."
    echo -e "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"

    # Iterate through all regions
    for region in $regions; do

        # Print region header
        echo -e "\n"
        echo -e "Region: $region..."
        echo -e "--------------------------------------------------------------"

        # Output items for the region
        aws ec2 describe-instances    \
          --profile $profile          \
          --region  $region           \
          --query   $query_full       \
          --output  text              \
          | sed     's/None$/None\n/' \
          | sed     '$!N;s/\n/ /'     \
          | column  -t -s $'\t'

    done
done