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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 and private subnets spread
across two Availabilty Zones. It deploys an Internet Gateway, with a default
route on the public subnets. It deploys a pair of NAT Gateways (one in each AZ),
and default routes for them in the private 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: 10.192.0.0/16
PublicSubnet1CIDR:
Description: Please enter the IP range (CIDR notation) for the public subnet in the first Availability Zone
Type: String
Default: 10.192.10.0/24
PublicSubnet2CIDR:
Description: Please enter the IP range (CIDR notation) for the public subnet in the second Availability Zone
Type: String
Default: 10.192.11.0/24
PrivateSubnet1CIDR:
Description: Please enter the IP range (CIDR notation) for the private subnet in the first Availability Zone
Type: String
Default: 10.192.20.0/24
PrivateSubnet2CIDR:
Description: Please enter the IP range (CIDR notation) for the private subnet in the second Availability Zone
Type: String
Default: 10.192.21.0/24
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)
PrivateSubnet1:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
AvailabilityZone: !Select [0, !GetAZs ""]
CidrBlock: !Ref PrivateSubnet1CIDR
MapPublicIpOnLaunch: false
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Private Subnet (AZ1)
PrivateSubnet2:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
AvailabilityZone: !Select [1, !GetAZs ""]
CidrBlock: !Ref PrivateSubnet2CIDR
MapPublicIpOnLaunch: false
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Private Subnet (AZ2)
NatGateway1EIP:
Type: AWS::EC2::EIP
DependsOn: InternetGatewayAttachment
Properties:
Domain: vpc
NatGateway1:
Type: AWS::EC2::NatGateway
Properties:
AllocationId: !GetAtt NatGateway1EIP.AllocationId
SubnetId: !Ref PublicSubnet1
NatGateway2EIP:
Type: AWS::EC2::EIP
DependsOn: InternetGatewayAttachment
Properties:
Domain: vpc
NatGateway2:
Type: AWS::EC2::NatGateway
Properties:
AllocationId: !GetAtt NatGateway2EIP.AllocationId
SubnetId: !Ref PublicSubnet2
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
PrivateRouteTable1:
Type: AWS::EC2::RouteTable
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Private Routes (AZ1)
DefaultPrivateRoute1:
Type: AWS::EC2::Route
Properties:
RouteTableId: !Ref PrivateRouteTable1
DestinationCidrBlock: 0.0.0.0/0
NatGatewayId: !Ref NatGateway1
PrivateSubnet1RouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref PrivateRouteTable1
SubnetId: !Ref PrivateSubnet1
PrivateRouteTable2:
Type: AWS::EC2::RouteTable
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Private Routes (AZ2)
DefaultPrivateRoute2:
Type: AWS::EC2::Route
Properties:
RouteTableId: !Ref PrivateRouteTable2
DestinationCidrBlock: 0.0.0.0/0
NatGatewayId: !Ref NatGateway2
PrivateSubnet2RouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref PrivateRouteTable2
SubnetId: !Ref PrivateSubnet2
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]]
PrivateSubnets:
Description: A list of the private subnets
Value: !Join [",", [!Ref PrivateSubnet1, !Ref PrivateSubnet2]]
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
PrivateSubnet1:
Description: A reference to the private subnet in the 1st Availability Zone
Value: !Ref PrivateSubnet1
PrivateSubnet2:
Description: A reference to the private subnet in the 2nd Availability Zone
Value: !Ref PrivateSubnet2
Subnets:
Description: A list of the All subnets
Value: !Join [",", [!Ref PrivateSubnet1, !Ref PrivateSubnet2, !Ref PublicSubnet1, !Ref PublicSubnet2]]