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vpc.yaml
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vpc.yaml
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Description: >
This template deploys a VPC, with a pair of public subnets spread
across two Availabilty Zones. It deploys an Internet Gateway, with a default
route on the public subnets.
Parameters:
EnvironmentName:
Description: An environment name that will be prefixed to resource names
Type: String
VpcCIDR:
Description: Please enter the IP range (CIDR notation) for this VPC
Type: String
Default: 10.0.0.0/16
PublicSubnet1CIDR:
Description: Please enter the IP range (CIDR notation) for the public subnet in the first Availability Zone
Type: String
Default: 10.0.0.0/24
PublicSubnet2CIDR:
Description: Please enter the IP range (CIDR notation) for the public subnet in the second Availability Zone
Type: String
Default: 10.0.1.0/24
Resources:
VPC:
Type: AWS::EC2::VPC
Properties:
CidrBlock: !Ref VpcCIDR
EnableDnsHostnames: true
Tags:
- Key: Name
Value: !Ref EnvironmentName
InternetGateway:
Type: AWS::EC2::InternetGateway
Properties:
Tags:
- Key: Name
Value: !Ref EnvironmentName
InternetGatewayAttachment:
Type: AWS::EC2::VPCGatewayAttachment
Properties:
InternetGatewayId: !Ref InternetGateway
VpcId: !Ref VPC
PublicSubnet1:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
AvailabilityZone: !Select [0, !GetAZs ""]
CidrBlock: !Ref PublicSubnet1CIDR
MapPublicIpOnLaunch: true
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Public Subnet (AZ1)
PublicSubnet2:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
AvailabilityZone: !Select [1, !GetAZs ""]
CidrBlock: !Ref PublicSubnet2CIDR
MapPublicIpOnLaunch: true
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Public Subnet (AZ2)
PublicRouteTable:
Type: AWS::EC2::RouteTable
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Public Routes
DefaultPublicRoute:
Type: AWS::EC2::Route
DependsOn: InternetGatewayAttachment
Properties:
RouteTableId: !Ref PublicRouteTable
DestinationCidrBlock: 0.0.0.0/0
GatewayId: !Ref InternetGateway
PublicSubnet1RouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref PublicRouteTable
SubnetId: !Ref PublicSubnet1
PublicSubnet2RouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref PublicRouteTable
SubnetId: !Ref PublicSubnet2
Outputs:
VPC:
Description: A reference to the created VPC
Value: !Ref VPC
PublicSubnets:
Description: A list of the public subnets
Value: !Join [",", [!Ref PublicSubnet1, !Ref PublicSubnet2]]
PublicSubnet1:
Description: A reference to the public subnet in the 1st Availability Zone
Value: !Ref PublicSubnet1
PublicSubnet2:
Description: A reference to the public subnet in the 2nd Availability Zone
Value: !Ref PublicSubnet2