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cloudformation.json
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cloudformation.json
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{
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "Build an AWS VPC with a single public subnet in a single AZ.",
"Parameters" : {
"KeyName" : {
"Description" : "Name of an existing EC2 KeyPair to enable SSH access to the instances",
"Type" : "String",
"MinLength": "1",
"MaxLength": "64",
"AllowedPattern" : "[-_ a-zA-Z0-9]*",
"ConstraintDescription" : "can contain only alphanumeric characters, spaces, dashes and underscores."
}
},
"Mappings" : {
"NatRegionMap" : {
"us-east-1" : { "AMI" : "ami-184dc970" },
"us-west-1" : { "AMI" : "ami-a98396ec" },
"us-west-2" : { "AMI" : "ami-290f4119" },
"eu-west-1" : { "AMI" : "ami-14913f63" },
"eu-central-1" : { "AMI" : "ami-ae380eb3" },
"sa-east-1" : { "AMI" : "ami-8122969c" },
"ap-southeast-1" : { "AMI" : "ami-6aa38238" },
"ap-southeast-2" : { "AMI" : "ami-893f53b3" },
"ap-northeast-1" : { "AMI" : "ami-27d6e626" }
}
},
"Resources" : {
"VPC" : {
"Type" : "AWS::EC2::VPC",
"Properties" : {
"CidrBlock" : "192.168.0.0/16",
"EnableDnsSupport" : true,
"EnableDnsHostnames" : true,
"Tags" : [
{"Key" : "Name", "Value" : { "Ref" : "AWS::StackName"} },
{"Key" : "Application", "Value" : { "Ref" : "AWS::StackName"} },
{"Key" : "Network", "Value" : "Public" }
]
}
},
"secg": {
"Type": "AWS::EC2::SecurityGroup",
"Properties" : {
"GroupDescription" : "Insecure Group All Traffic",
"VpcId" : { "Ref" : "VPC" },
"SecurityGroupIngress": [
{"IpProtocol": "-1", "FromPort": "0", "ToPort": "65535", "CidrIp": "0.0.0.0/0"}
],
"SecurityGroupEgress": [
{"IpProtocol": "-1", "FromPort": "0", "ToPort": "65535", "CidrIp": "0.0.0.0/0"}
]
}
},
"PublicSubnet" : {
"Type" : "AWS::EC2::Subnet",
"Properties" : {
"VpcId" : { "Ref" : "VPC" },
"CidrBlock" : "192.168.1.0/24",
"Tags" : [
{"Key" : "Application", "Value" : { "Ref" : "AWS::StackName"} },
{"Key" : "Network", "Value" : "Public" }
]
}
},
"NAT" : {
"DependsOn" : ["PublicSubnet", "secg"],
"Type" : "AWS::EC2::Instance",
"Properties" : {
"InstanceType" : "t2.micro",
"KeyName" : { "Ref" : "KeyName" },
"SourceDestCheck" : "false",
"ImageId" : { "Fn::FindInMap" : [ "NatRegionMap", { "Ref" : "AWS::Region" }, "AMI" ]},
"NetworkInterfaces" : [{
"GroupSet" : [{ "Ref" : "secg" }],
"AssociatePublicIpAddress" : "true",
"DeviceIndex" : "0",
"DeleteOnTermination" : "true",
"SubnetId" : { "Ref" : "PublicSubnet" }
}],
"Tags" : [
{ "Key" : "Name", "Value" : "NAT" }
],
"UserData" : { "Fn::Base64" : { "Fn::Join" : ["", [
"#!/bin/bash\n",
"yum update -y && yum install -y yum-cron && chkconfig yum-cron on"
]]}}
}
},
"InternetGateway" : {
"Type" : "AWS::EC2::InternetGateway",
"Properties" : {
"Tags" : [
{"Key" : "Application", "Value" : { "Ref" : "AWS::StackName"} },
{"Key" : "Network", "Value" : "Public" }
]
}
},
"AttachGateway" : {
"Type" : "AWS::EC2::VPCGatewayAttachment",
"Properties" : {
"VpcId" : { "Ref" : "VPC" },
"InternetGatewayId" : { "Ref" : "InternetGateway" }
}
},
"PublicRouteTable" : {
"Type" : "AWS::EC2::RouteTable",
"Properties" : {
"VpcId" : {"Ref" : "VPC"},
"Tags" : [
{"Key" : "Application", "Value" : { "Ref" : "AWS::StackName"} },
{"Key" : "Network", "Value" : "Public" }
]
}
},
"PublicRoute" : {
"Type" : "AWS::EC2::Route",
"Properties" : {
"RouteTableId" : { "Ref" : "PublicRouteTable" },
"DestinationCidrBlock" : "0.0.0.0/0",
"GatewayId" : { "Ref" : "InternetGateway" }
}
},
"PublicSubnetRouteTableAssociation" : {
"Type" : "AWS::EC2::SubnetRouteTableAssociation",
"Properties" : {
"SubnetId" : { "Ref" : "PublicSubnet" },
"RouteTableId" : { "Ref" : "PublicRouteTable" }
}
}
},
"Outputs" : {
"VpcID" : {
"Value" : {"Ref" : "VPC"},
"Description" : "VPC ID of newly created VPC"
},
"PublicSubnetID" : {
"Value" : {"Ref" : "PublicSubnet"},
"Description" : "Public subnet ID"
}
}
}