Created
August 20, 2014 17:01
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AWS motd tag dumper
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| /etc/update-motd.d/95-aws-tags | |
| #!/bin/bash | |
| # Print some info from the aws tags | |
| # Color codes from http://stackoverflow.com/questions/4332478/read-the-current-text-color-in-a-xterm/4332530#4332530 | |
| black=$(tput setaf 0) | |
| red=$(tput setaf 1) | |
| green=$(tput setaf 2) | |
| yellow=$(tput setaf 3) | |
| lime_yellow=$(tput setaf 190) | |
| powder_blue=$(tput setaf 153) | |
| blue=$(tput setaf 4) | |
| magenta=$(tput setaf 5) | |
| cyan=$(tput setaf 6) | |
| white=$(tput setaf 7) | |
| bold=$(tput bold) | |
| normal=$(tput sgr0) | |
| #blink=$(tput blink) | |
| rev=$(tput smso) | |
| underline=$(tput smul) | |
| metadata=() | |
| while read; do | |
| metadata+=("$REPLY") | |
| done < <(/usr/bin/ec2metadata --availability-zone --instance-id --instance-type --local-hostname) | |
| echo "${bold}Welcome to ${blue}${rev}${metadata[1]}${normal}${white} running on a ${green}${rev}${metadata[2]}${normal}${white} in the ${cyan}${rev}${metadata[0]}${normal}${white} datacenter" | |
| echo "${normal}" |
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Simpler option, might be more reliable with AWS changes in future, and if you have good tags, even better!
export AWS_ACCESS_KEY_ID=Your ID
export AWS_SECRET_ACCESS_KEY= Your Key
export AWS_DEFAULT_REGION=$(/usr/bin/ec2metadata --availability-zone)
url="http://169.254.169.254/latest/meta-data/instance-id"
instance_id=$(curl --noproxy 169.254.169.254 --fail --silent ${url})
aws ec2 describe-tags --color on --no-paginaete --filters "Name=resource-id,Values=${instance_id}" --output table