#!/bin/bash
cat <<EOF > /tmp/ec2-raw.txt
m5.large	2	8	
m5.xlarge	4	16
m5.2xlarge	8	32
m5.4xlarge	16	64
m5.8xlarge	32	128
c5.large	2	4	
c5.xlarge	4	8
c5.2xlarge	8	16
c5.4xlarge	16	32	
c5.9xlarge	36	72	
c5.12xlarge	48	96
r5.large	2	16
r5.xlarge	4	32
r5.2xlarge	8	64
r5.4xlarge	16	128
r5.8xlarge	32	256
EOF

if [ ! -f ec2-size-match.db ]; then
echo "create table instances(instance varchar(30), cpu int, ram int)" | sqlite3 ec2-size-match.db
cat /tmp/ec2-raw.txt | while read a b c; do
echo "insert into instances values(\"$a\", \"$b\", \"$c\");" | sqlite3 ec2-size-match.db
done
fi

RESULT=$(echo "select instance from instances where cpu = \"$1\" and ram = \"$2\";" | sqlite3 ec2-size-match.db)
if [ -z "$RESULT" ]; then
echo manual-match
else
echo $RESULT
fi