udagram-networkInfra.yml

AWSTemplateFormatVersion: 2010-09-09
Description: This a instagram clone name Udagram network infrastructure
Parameters:
  EnvironmentName:
    Description: An Envrionment to describethe resources being deployed
    Type: String
  VpcCIDR:
    Description: This is the range of IP addreess for the VPC
    Type: String
    Default: 10.0.0.0/16
  PublicSubnet1CIDR:
    Description: This is the range of IP address for the public subnet1
    Type: String
    Default: 10.0.0.0/24
  PublicSubnet2CIDR:
    Description: This is the range of IP address for the public subnet2
    Type: String
    Default: 10.0.1.0/24
  PrivateSubnet1CIDR:
    Description: This is the range of IP address for the private subnet1
    Type: String
    Default: 10.0.2.0/24
  PrivateSubnet2CIDR:
    Description: This is the range of IP address for the private subnet2
    Type: String
    Default: 10.0.3.0/24
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
  InternetGatewayAttachement:
    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} PublicSubnet (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} PublicSubnet (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} PrivateSubnet (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} PrivateSubnet (AZ2)
  EIPNatGateway1:
    Type: AWS::EC2::EIP
    DependsOn: InternetGatewayAttachement
    Properties:
      Domain: vpc
  EIPNatGateway2:
    Type: AWS::EC2::EIP
    DependsOn: InternetGatewayAttachement
    Properties:
      Domain: vpc
  NatGateway1:
    Type: AWS::EC2::NatGateway
    Properties:
      AllocationId: !GetAtt EIPNatGateway1.AllocationId
      SubnetId: !Ref PublicSubnet1
  NatGateway2:
    Type: AWS::EC2::NatGateway
    Properties:
      AllocationId: !GetAtt EIPNatGateway2.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: InternetGatewayAttachement
    Properties:
      DestinationCidrBlock: 0.0.0.0/0
      GatewayId: !Ref InternetGateway
      RouteTableId: !Ref PublicRouteTable
  PublicSubnet1RouteTableAssociation:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties: 
      RouteTableId: !Ref PublicRouteTable
      SubnetId: !Ref PublicSubnet1
  PrivateRouteTable1:
    Type: AWS::EC2::RouteTable
    Properties:
      VpcId: !Ref VPC
      Tags:
        - Key: Name
          Value: !Sub ${EnvironmentName} Private Routes (AZ1)
  DefaultPrivateRoute1:
    Type: AWS::EC2::Route
    Properties:
      DestinationCidrBlock: 0.0.0.0/0
      NatGatewayId: !Ref NatGateway1
      RouteTableId: !Ref PrivateRouteTable1
  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:
      DestinationCidrBlock: 0.0.0.0/0
      NatGatewayId: !Ref NatGateway2
      RouteTableId: !Ref PrivateRouteTable2
  PrivateSubnet2RouteTableAssociation:
    Type: AWS::EC2::SubnetRouteTableAssociation
    Properties: 
      RouteTableId: !Ref PrivateRouteTable2
      SubnetId: !Ref PrivateSubnet2

Outputs:
  UdagramVPC:
    Description: A reference to the stack VPC
    Value: !Ref VPC
    Export:
      Name: !Sub ${EnvironmentName}-VPCID
  VPCPublicRouteTable:
    Description: A reference to stack public routing
    Value: !Ref PublicRouteTable
    Export:
      Name: !Sub ${EnvironmentName}-PUBLIC-RT
  VPCPrivateRouteTable1:
    Description: A reference to stack Private routing in AZ1
    Value: !Ref PrivateRouteTable1
    Export:
      Name: !Sub ${EnvironmentName}-PRIVATE1-RT
  VPCPrivateRouteTable2:
    Description: A reference to stack Private routing in AZ2
    Value: !Ref PrivateRouteTable2
    Export:
      Name: !Sub ${EnvironmentName}-PRIVATE2-RT
  PublicSubnets:
    Description: A reference to stack list of public subnets
    Value: !Join [",", [!Ref PublicSubnet1, !Ref PublicSubnet2]]
    Export:
      Name: !Sub ${EnvironmentName}-PUBLIC-NETS
  PrivateSubnets:
    Description: A list of Private subnets
    Value: !Join [",", [!Ref PrivateSubnet1, !Ref PrivateSubnet2]]
    Export:
      Name: !Sub ${EnvironmentName}-PRIV-NETS
  PublicSubnet1:
    Description: A reference to the public subnet in AZ1
    Value: !Ref PublicSubnet1
    Export:
      Name: !Sub ${EnvironmentName}-PUBLIC1-SN
  PublicSubnet2:
    Description: A reference to the public subnet in AZ2
    Value: !Ref PublicSubnet2
    Export:
      Name: !Sub ${EnvironmentName}-PUBLIC2-SN
  PrivateSubnet1:
    Description: A reference to the private subnet in AZ1
    Value: !Ref PrivateSubnet1
    Export:
      Name: !Sub ${EnvironmentName}-PRIVATE1-SN
  PrivateSubnet2:
    Description: A reference to the private subnet in AZ2
    Value: !Ref PrivateSubnet2
    Export:
      Name: !Sub ${EnvironmentName}-PRIVATE2-SN