create aws load balancer script

gistfile1.txt

#!/bin/bash

set -euox pipefail

echo "Please enter profile to use"
read PROFILE
echo "Please enter region to use"
read REGION
echo "Please enter ELBPORT to use"
read ELBPORT
echo "Please enter INSTANCEPORT to use"
read INSTANCEPORT
echo "Please enter ELB_NAME to use"
read ELB_NAME

if [ -z $ELB_NAME ]; then
	echo "ELB name have to be set"
	exit 1
fi

ELBPORT=${ELBPORT:-'80'}
INSTANCEPORT=${INSTANCEPORT:-'8080'}
INSTANCEPORT=${INSTANCEPORT:-'3000'}
PROFILE=${PROFILE:-'HA'}
REGION=${REGION:-'us-east-1'}

getVpcNames(){
	aws --profile=HA ec2 describe-vpcs --query "Vpcs[*].Tags[].Value" --output text 
}


# Gets the public subnets on a given vpc.
getPublicSubnets(){ 
				 echo $(aws --profile=$PROFILE ec2 describe-subnets \
					   --filters "Name=vpc-id,Values=$VPCID" \
					   --query "Subnets[?Tags != null && Tags[?contains(Value,\`Public\`)==\`true\`]].SubnetId" --output text )
					  
}


# Gets the public subnets on a given vpc.
createElb(){
	aws --profile=$PROFILE elb create-load-balancer \
		--load-balancer-name $ELB_NAME \
	    --listeners "Protocol=HTTP,LoadBalancerPort=$ELBPORT,InstanceProtocol=HTTP,InstancePort=$INSTANCEPORT" \
		--subnets $PUBLIC_SUBNETS \
		--security-groups sg-8c2d57f6 
}


#getVpcNames
VPC=$( getVpcNames | sed -e 's/vpc//g' )
echo $VPC
select VPCNAME in $VPC;
do
	VPCID=$(aws --profile=HA ec2 describe-vpcs --query "Vpcs[?Tags != null && Tags[?contains(Value,'${VPCNAME}')==\`true\`]].VpcId")
	PUBLIC_SUBNETS=$(getPublicSubnets $VPCID)
	createElb
done