NATGateway

AWSTemplateFormatVersion: '2010-09-09'
Description: NAT Gateway
Parameters:
  Owner:
    Description: Enter Team or Individual Name Responsible for the Stack.
    Type: String
    Default: FirstName LastName
  VPC:
    Description: Select VPC.
    Type: AWS::EC2::VPC::Id
  PublicSubnet:
    Description: Public Subnet to Attach NAT Gateway.
    Type: AWS::EC2::Subnet::Id
  PrivateRouteTable:
    Description: Enter Private Route Table ID.
    Type: String
    Default: rtb-0000000
  PublicNetworkAcl:
    Description: Enter Public Network ACL ID.
    Type: String
    Default: acl-0000000
  AllowNatRuleNumber:
    Description: Enter Public Network ACL Rule Number to Allow Return NAT Traffic.
    Type: Number
    Default: '120'
Resources:
  NatGateway:
    Type: AWS::EC2::NatGateway
    DependsOn: NatEIP
    Properties:
      AllocationId:
        Fn::GetAtt:
        - NatEIP
        - AllocationId
      SubnetId:
        Ref: PublicSubnet
  NatEIP:
    Type: AWS::EC2::EIP
    Properties:
      Domain: vpc
  InboundPublicNetworkAclAllowNat:
    Type: AWS::EC2::NetworkAclEntry
    Properties:
      NetworkAclId:
        Ref: PublicNetworkAcl
      RuleNumber:
        Ref: AllowNatRuleNumber
      Protocol: '6'
      RuleAction: allow
      Egress: 'false'
      CidrBlock: 0.0.0.0/0
      PortRange:
        From: '1024'
        To: '65535'
Outputs:
  Owner:
    Description: Team or Individual that Owns this Formation.
    Value:
      Ref: Owner
  VPC:
    Description: VPC Used
    Value:
      Ref: VPC
  NatEIP:
    Description: NAT Elastic IP Address
    Value:
      Ref: NatEIP
  PublicNetworkACLRuleNumbers:
    Description: Public Network ACL Rules Number Created.
    Value:
      Fn::Join:
      - ''
      - - Inbound (
        - Ref: AllowNatRuleNumber
        - ")"
Metadata:
  AWS::CloudFormation::Interface:
    ParameterGroups:
    - Label:
        default: Ownership
      Parameters:
      - Owner
    - Label:
        default: Network Configuration
      Parameters:
      - VPC
      - PublicSubnet
      - PrivateRouteTable
      - PublicNetworkAcl
      - AllowNatRuleNumber
    ParameterLabels:
      Owner:
        default: Team or Individual Owner
      PublicSubnet:
        default: Public Subnet
      PrivateRouteTable:
        default: Private Route Table
      PublicNetworkAcl:
        default: Public Network ACL
      AllowNatRuleNumber:
        default: Public Network ACL Rule Number