ec2-metadata-dev

#!/bin/bash

# MOCK DE INSTRUCOES USADAS NO EC2 E INTEGRACAO COM NOSSA API DE DADOS
# Opcoes disponiveis
optionsAvailable=(--help --ami-id --instance-id --instance-type --availability-zone --public-ipv4 --security-groups)

function listHelper()
{
	echo "-a/--ami-id               The AMI ID used to launch this instance"
	echo "-i/--instance-id          The ID of this instance"
	echo "-t/--instance-type        The type of instance to launch. For more information, see Instance Types."
	echo "-z/--availability-zone    The availability zone in which the instance launched. Same as placement"
	echo "-v/--public-ipv4          NATted public IP Address"
	echo "-s/--security-groups      Names of the security groups the instance is launched in. Only available if supplied at instance launch time"
}

function getInstanceId()
{
	echo "mock-ec2-instance-id@12345678910"
	exit 1
}

function getInstanceType()
{
	echo "mock-ec2-instance-type@12345678910"
}

function getAvailabilityZone()
{
	echo "mock-ec2-available-zone@12345678910"
}

function getPublicIpv4()
{
	echo "10.0.0.1"
}

function getSecurityGroup()
{
	echo "mock-ec2-security-group@12345678910"
}

invalidParameters() {
	if [ "$exists" == "0" ]; then
		echo "Parameter invalid"
		exit 1
	fi
}

array_contains () {
    local seeking=$1; shift
    local in=1
    for element; do
        if [[ $element == $seeking ]]; then
            in=0
            break
        fi
    done
    return $in
}

# Checa parametros
if [ "$#" -ne 1 ]; then
    echo "Argurmentos invalidos, utilize '--help' para saber o que deve usar"
    exit 1
fi

exists=0
for i in $*; do 
	if array_contains $i "${optionsAvailable[@]}"; then
		case $i in
			'--help') exists=1; listHelper ;;
			'--instance-id') exists=1; getInstanceId ;;
			'--instance-type') exists=1; getInstanceType ;;
			'--availability-zone') exists=1; getAvailabilityZone ;;
			'--public-ipv4') exists=1; getPublicIpv4 ;;
			'--security-groups') exists=1; getSecurityGroup ;;
		esac
   	fi
done

# Verifica se passou parametros validos
invalidParameters $exists