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EC2 Bash Prompt
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#!/bin/bash | |
#Set colour prompt using the name, platform or instance id and avzone | |
if [ ! -f "/opt/aws/AWS-INSTID" ]; then | |
curl -s --fail http://169.254.169.254/latest/meta-data/instance-id > /opt/aws/AWS-INSTID | |
fi | |
export INSTID=`cat /opt/aws/AWS-INSTID` | |
if [ ! -f "/opt/aws/AWS-AVZONE" ]; then | |
curl -s --fail http://169.254.169.254/latest/meta-data/placement/availability-zone > /opt/aws/AWS-AVZONE | |
fi | |
export AVZONE=`cat /opt/aws/AWS-AVZONE` | |
PLATFORM="" | |
if [ -f "/opt/aws/AWS-PLATFORM" ]; then | |
PLATFORM=`cat /opt/aws/AWS-PLATFORM` | |
fi | |
NAME="" | |
if [ -f "/opt/aws/AWS-NAME" ]; then | |
NAME=`cat /opt/aws/AWS-NAME` | |
fi | |
# Define colours | |
RED=31 | |
GREEN=32 | |
ORANGE=33 | |
BLUE=34 | |
PURPLE=35 | |
CYAN=36 | |
# Use NAME and PLATFORM if defined - otherwise use the instance ID | |
# or the availability zone. Set the platform colour according to the | |
# platform. | |
if [[ "$NAME" == "" ]]; then | |
NAME=$INSTID | |
fi | |
export NAME | |
if [[ "$PLATFORM" != "" ]]; then | |
PLAT=`echo $PLATFORM | tr '[a-z]' '[A-Z]'` | |
case $PLAT in | |
TEST*|STAGE*) PLATCOL=$GREEN | |
NAMECOL=$CYAN | |
;; | |
UAT*|PREPROD*) PLATCOL=$ORANGE | |
NAMECOL=$PURPLE | |
;; | |
LIVE*|PROD*) PLATCOL=$RED | |
NAMECOL=$BLUE | |
;; | |
*) PLATCOL=$BLUE | |
NAMECOL=$GREEN | |
;; | |
esac | |
else | |
PLAT=$AVZONE | |
PLATCOL=$CYAN | |
NAMECOL=$ORANGE | |
fi | |
export PLAT | |
export PLATCOL | |
export NAMECOL | |
case $TERM in | |
vt100) | |
PS1="\[\033]0;[$PLAT] $NAME\007\]\[\033[0;${PLATCOL}m\][$PLAT]\[\033[0;38m\] \[\033[0;${NAMECOL}m\]$NAME\[\033[0;38m\] [\u:\W]$ " | |
;; | |
xtermc) | |
export TERM=xterm | |
PS1="\[\033]0;[$PLAT] $NAME\007\]\[\033[0;${PLATCOL}m\][$PLAT]\[\033[0;38m\] \[\033[0;${NAMECOL}m\]$NAME\[\033[0;38m\] [\u:\W]$ " | |
;; | |
xterm*) | |
PS1="\[\033]0;[$PLAT] $NAME\007\]\[\033[0;${PLATCOL}m\][$PLAT]\[\033[0;38m\] \[\033[0;${NAMECOL}m\]$NAME\[\033[0;38m\] [\u:\W]$ " | |
;; | |
*) | |
PS1="[\u@$INSTID \W]$ " | |
;; | |
esac | |
shopt -s checkwinsize | |
[ "$PS1" = "\\s-\\v\\\$ " ] && PS1="[\u@\h \W]\\$ " | |
export PS1 |
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