AWS CloudFormation
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AWS CloudFormation
Creating an Amazon Virtual Private Cloud (VPC) with AWS CloudFormation
- An Amazon VPC
- An Internet Gateway
- Two Subnets
- Two Route Tables
Amazon VPC
AWSTemplateFormatVersion: 2010-09-09
Description: Deploy a VPC
Resources:
VPC:
Type: AWS::EC2::VPC
Properties:
CidrBlock: 10.0.0.0/16
EnableDnsHostnames: true
Tags:
- Key: Name
Value: Lab VPC
Internet Gateway
InternetGateway:
Type: AWS::EC2::InternetGateway
Properties:
Tags:
- Key: Name
Value: Lab Internet Gateway
Attach Gateway to VPC
AttachGateway:
Type: AWS::EC2::VPCGatewayAttachment
Properties:
VpcId: !Ref VPC
InternetGatewayId: !Ref InternetGateway
Build Subnet
PublicSubnet1:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
CidrBlock: 10.0.0.0/24
AvailabilityZone: !Select
- '0'
- !GetAZs ''
Tags:
- Key: Name
Value: Public Subnet 1
PrivateSubnet1:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
CidrBlock: 10.0.1.0/24
AvailabilityZone: !Select
- '0'
- !GetAZs ''
Tags:
- Key: Name
Value: Private Subnet 1
!Select, !GetAZs means
Retrieving a list of Availability Zones with the region and is referencing the first element from the list.
In this manner, the list of Availability Zones at runtime rather than having the Availability Zones hard-coded in the template.
Build RouteTable
PublicRouteTable:
Type: AWS::EC2::RouteTable
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: Public Route Table
PublicRoute:
Type: AWS::EC2::Route
Properties:
RouteTableId: !Ref PublicRouteTable
DestinationCidrBlock: 0.0.0.0/0
GatewayId: !Ref InternetGateway
PublicSubnetRouteTableAssociation1:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
SubnetId: !Ref PublicSubnet1
RouteTableId: !Ref PublicRouteTable
Outputs
Outputs:
VPC:
Description: VPC
Value: !Ref VPC
AZ1:
Description: Availability Zone 1
Value: !GetAtt
- PublicSubnet1
- AvailabilityZone
