AWSTemplateFormatVersion: "2010-09-09"
Description:
VPC, 3 private Subnets, 3 public subnets, NAT Gateway, Internet Gateway and Route Tables Create
# ------------------------------------------------------------#
# Input Parameters
# ------------------------------------------------------------#
Parameters:
EnvironmentName:
Description: An environment name that is 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: 10.0.10.0/24
PublicSubnet2CIDR:
Description: Please enter the IP range (CIDR notation) for the public subnet in the second Availability Zone
Type: String
Default: 10.0.11.0/24
PublicSubnet3CIDR:
Description: Please enter the IP range (CIDR notation) for the public subnet in the third Availability Zone
Type: String
Default: 10.0.12.0/24
PrivateSubnet1CIDR:
Description: Please enter the IP range (CIDR notation) for the private subnet in the first Availability Zone
Type: String
Default: 10.0.20.0/24
PrivateSubnet2CIDR:
Description: Please enter the IP range (CIDR notation) for the private subnet in the second Availability Zone
Type: String
Default: 10.0.21.0/24
PrivateSubnet3CIDR:
Description: Please enter the IP range (CIDR notation) for the private subnet in the third Availability Zone
Type: String
Default: 10.0.22.0/24
Resources:
# ------------------------------------------------------------#
# VPC
# ------------------------------------------------------------#
VPC:
Type: AWS::EC2::VPC
Properties:
CidrBlock: !Ref VpcCIDR
EnableDnsSupport: true
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
NoIngressSecurityGroup:
Type: AWS::EC2::SecurityGroup
Properties:
GroupName: "no-ingress-sg"
GroupDescription: "Security group with no ingress rule"
VpcId: !Ref VPC
NatGatewayEIP:
Type: AWS::EC2::EIP
DependsOn: InternetGatewayAttachment
Properties:
Domain: vpc
NatGateway:
Type: AWS::EC2::NatGateway
Properties:
AllocationId: !GetAtt NatGatewayEIP.AllocationId
SubnetId: !Ref PublicSubnet1
# ------------------------------------------------------------#
# PublicSubnet
# ------------------------------------------------------------#
PublicSubnet1:
Type: AWS::EC2::Subnet
DependsOn: InternetGatewayAttachment
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)
PublicSubnet3:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
AvailabilityZone: !Select [ 2, !GetAZs "" ]
CidrBlock: !Ref PublicSubnet3CIDR
MapPublicIpOnLaunch: true
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Public Subnet (AZ3)
# ------------------------------------------------------------#
# PrivateSubnet
# ------------------------------------------------------------#
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)
PrivateSubnet3:
Type: AWS::EC2::Subnet
Properties:
VpcId: !Ref VPC
AvailabilityZone: !Select [ 2, !GetAZs "" ]
CidrBlock: !Ref PrivateSubnet3CIDR
MapPublicIpOnLaunch: false
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Private Subnet (AZ3)
# ------------------------------------------------------------#
# RouteTable
# ------------------------------------------------------------#
PublicRouteTable:
Type: AWS::EC2::RouteTable
DependsOn: InternetGatewayAttachment
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Public Routes
PrivateRouteTable1:
Type: AWS::EC2::RouteTable
DependsOn : NatGateway
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Private Routes (AZ1)
PrivateRouteTable2:
Type: AWS::EC2::RouteTable
Properties:
VpcId: !Ref VPC
Tags:
- Key: Name
Value: !Sub ${EnvironmentName} Private Routes (AZ2)
PrivateRouteTable3:
Type: AWS::EC2::RouteTable
Properties:
VpcId: !Ref VPC
Tags:
- Key: Nasme
Value: !Sub ${EnvironmentName} Private Routes (AZ3)
# ------------------------------------------------------------#
# Routing
# ------------------------------------------------------------#
DefaultPublicRoute:
Type: AWS::EC2::Route
DependsOn: InternetGatewayAttachment
Properties:
RouteTableId: !Ref PublicRouteTable
DestinationCidrBlock: 0.0.0.0/0
GatewayId: !Ref InternetGateway
DefaultPrivateRoute1:
Type: AWS::EC2::Route
Properties:
RouteTableId: !Ref PrivateRouteTable1
DestinationCidrBlock: 0.0.0.0/0
NatGatewayId: !Ref NatGateway
# ------------------------------------------------------------#
# RouteTable Associate
# ------------------------------------------------------------#
PublicSubnet1RouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref PublicRouteTable
SubnetId: !Ref PublicSubnet1
PublicSubnet2RouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref PublicRouteTable
SubnetId: !Ref PublicSubnet2
PublicSubnet3RouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref PublicRouteTable
SubnetId: !Ref PublicSubnet3
PrivateSubnet1RouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref PrivateRouteTable1
SubnetId: !Ref PrivateSubnet1
PrivateSubnet2RouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref PrivateRouteTable1
SubnetId: !Ref PrivateSubnet2
PrivateSubnet3RouteTableAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId: !Ref PrivateRouteTable1
SubnetId: !Ref PrivateSubnet3
# ------------------------------------------------------------#
# Outputs
# ------------------------------------------------------------#
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, !Ref PublicSubnet3 ]]
PrivateSubnets:
Description: A list of the private subnets
Value: !Join [ ",", [ !Ref PrivateSubnet1, !Ref PrivateSubnet2 , !Ref PrivateSubnet3]]
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
PublicSubnet3:
Description: A reference to the public subnet in the 1st Availability Zone
Value: !Ref PublicSubnet3
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
PrivateSubnet3:
Description: A reference to the private subnet in the 2nd Availability Zone
Value: !Ref PrivateSubnet3
NoIngressSecurityGroup:
Description: Security group with no ingress rule
Value: !Ref NoIngressSecurityGroup