lab00-create-stack/demo.json

{
	"AWSTemplateFormatVersion": "2010-09-09",
	"Description": "Hello World! example",
	"Parameters": {
		"VPC": {
			"Description": "The default VPC",
			"Type": "AWS::EC2::VPC::Id"
		},
		"Subnet": {
			"Description": "A public subnet from default VPC.",
			"Type": "AWS::EC2::Subnet::Id"
		},
		"SubnetType": {
			"Description": "Choose the type of the subnet.",
			"Type": "String",
			"AllowedValues": [
				"Private",
				"Public"
			]
		}
	},
	"Conditions": {
		"HasPublicSubnet": {"Fn::Equals": [{"Ref": "SubnetType"}, "Public"]}
	},
	"Mappings": {
		"RegionMap": {
			"eu-west-1": {"AMI": "ami-bff32ccc"},
			"ap-southeast-1": {"AMI": "ami-c9b572aa"},
			"ap-southeast-2": {"AMI": "ami-48d38c2b"},
			"eu-central-1": {"AMI": "ami-bc5b48d0"},
			"ap-northeast-2": {"AMI": "ami-249b554a"},
			"ap-northeast-1": {"AMI": "ami-383c1956"},
			"us-east-1": {"AMI": "ami-60b6c60a"},
			"sa-east-1": {"AMI": "ami-6817af04"},
			"us-west-1": {"AMI": "ami-d5ea86b5"},
			"us-west-2": {"AMI": "ami-f0091d91"}
		}
	},
	"Resources": {
		"EC2Instance": {
			"Type": "AWS::EC2::Instance",
			"Properties": {
				"ImageId": {"Fn::FindInMap": ["RegionMap", {"Ref": "AWS::Region"}, "AMI"]},
				"InstanceType": "t2.micro",
				"NetworkInterfaces": [{
					"AssociatePublicIpAddress": {"Fn::If" : ["HasPublicSubnet", "true", "false"]},
					"DeviceIndex": "0",
					"GroupSet": [{"Ref": "WebserverSecurityGroup"}],
					"SubnetId": {"Ref": "Subnet"}
				}],
				"Tags": [{
					"Key": "Name",
					"Value": "hello-world"
				}],
				"UserData": {"Fn::Base64": {"Fn::Join": ["", [
					"#!/bin/bash -ex\n",
					"yum install -y httpd\n",
					"cd /var/www/html\n",
					"echo '<html><body>Hello World!</body></html>' > index.html\n",
					"service httpd start\n"
				]]}}
			}
		},
		"WebserverSecurityGroup": {
			"Type": "AWS::EC2::SecurityGroup",
			"Properties": {
				"GroupDescription": "hello-world-webserver",
				"VpcId": {"Ref": "VPC"},
				"SecurityGroupIngress": [{
					"CidrIp": "0.0.0.0/0",
					"FromPort": 80,
					"IpProtocol": "tcp",
					"ToPort": 80
				}]
			}
		}
	},
	"Outputs": {
		"HelloWorldURL": {
			"Description": "The URL pointing to Hello World!.",
			"Value": {"Fn::If" : ["HasPublicSubnet", {"Fn::Join": ["", ["http://", {"Fn::GetAtt": ["EC2Instance", "PublicIp"]}]]}, {"Fn::Join": ["", ["http://", {"Fn::GetAtt": ["EC2Instance", "PrivateIp"]}]]}]}
		}
	}
}