Pull various useful info from AWS meta data interface

aws-info.sh

#!/bin/bash

OUTFILE=server-info.txt
NEWFILE=1

# Clear existing if NEWFILE set to 1
if [ "$NEWFILE" == "1" ]; then
	echo "" > $OUTFILE
fi

# Log date
echo "== Run on $(date) ==" >> $OUTFILE

# Network info
for PARAM in local-hostname local-ipv4 public-hostname public-ipv4 ;
do
	ANSWER=$(curl -s http://169.254.169.254/latest/meta-data/"$PARAM"/)
	echo "$PARAM = $ANSWER" | tee -a $OUTFILE
done

echo "------------------------------" | tee -a $OUTFILE

# Useful AWS info
for PARAM in instance-id security-groups placement/availability-zone ;
do
	ANSWER=$(curl -s http://169.254.169.254/latest/meta-data/"$PARAM"/)
	echo "$PARAM = $ANSWER" | tee -a $OUTFILE
done