Ethereum Virtual Private Cloud Template for Amazon CloudFormation

ethereum-vpc.template

---
AWSTemplateFormatVersion: '2010-09-09'
Description: 'Ethereum Cluster VPC with two availability zones'
Metadata:
  'AWS::CloudFormation::Interface':
    ParameterGroups:
    - Label:
        default: 'VPC Parameters'
      Parameters:
      - ClassB
Parameters:
  ClassB:
    Description: 'Class B of VPC (10.XXX.0.0/16)'
    Type: Number
    Default: 0
    ConstraintDescription: 'Must be in the range [0-255]'
    MinValue: 0
    MaxValue: 255
Resources:
  VPC:
    Type: 'AWS::EC2::VPC'
    Properties:
      CidrBlock: !Sub '10.${ClassB}.0.0/16'
      EnableDnsSupport: true
      EnableDnsHostnames: true
      InstanceTenancy: default
      Tags:
      - Key: Name
        Value: !Sub '10.${ClassB}.0.0/16'
  InternetGateway:
    Type: 'AWS::EC2::InternetGateway'
    Properties:
      Tags:
      - Key: Name
        Value: !Sub '10.${ClassB}.0.0/16'
  VPCGatewayAttachment:
    Type: 'AWS::EC2::VPCGatewayAttachment'
    Properties:
      VpcId: !Ref VPC
      InternetGatewayId: !Ref InternetGateway
  SubnetAPublic:
    Type: 'AWS::EC2::Subnet'
    Properties:
      AvailabilityZone: !Select [0, !GetAZs '']
      CidrBlock: !Sub '10.${ClassB}.0.0/20'
      MapPublicIpOnLaunch: true
      VpcId: !Ref VPC
      Tags:
      - Key: Name
        Value: 'A public'
      - Key: Reach
        Value: public
  SubnetAPrivate:
    Type: 'AWS::EC2::Subnet'
    Properties:
      AvailabilityZone: !Select [0, !GetAZs '']
      CidrBlock: !Sub '10.${ClassB}.16.0/20'
      VpcId: !Ref VPC
      Tags:
      - Key: Name
        Value: 'A private'
      - Key: Reach
        Value: private
  SubnetBPublic:
    Type: 'AWS::EC2::Subnet'
    Properties:
      AvailabilityZone: !Select [1, !GetAZs '']
      CidrBlock: !Sub '10.${ClassB}.32.0/20'
      MapPublicIpOnLaunch: true
      VpcId: !Ref VPC
      Tags:
      - Key: Name
        Value: 'B public'
      - Key: Reach
        Value: public
  SubnetBPrivate:
    Type: 'AWS::EC2::Subnet'
    Properties:
      AvailabilityZone: !Select [1, !GetAZs '']
      CidrBlock: !Sub '10.${ClassB}.48.0/20'
      VpcId: !Ref VPC
      Tags:
      - Key: Name
        Value: 'B private'
      - Key: Reach
        Value: private
  RouteTablePublic:
    Type: 'AWS::EC2::RouteTable'
    Properties:
      VpcId: !Ref VPC
      Tags:
      - Key: Name
        Value: 'A Public'
  RouteTablePrivate:
    Type: 'AWS::EC2::RouteTable'
    Properties:
      VpcId: !Ref VPC
      Tags:
      - Key: Name
        Value: 'A Private'
  RouteTableBPublic:
    Type: 'AWS::EC2::RouteTable'
    Properties:
      VpcId: !Ref VPC
      Tags:
      - Key: Name
        Value: 'B Public'
  RouteTableBPrivate:
    Type: 'AWS::EC2::RouteTable'
    Properties:
      VpcId: !Ref VPC
      Tags:
      - Key: Name
        Value: 'B Private'
  RouteTableAssociationAPublic:
    Type: 'AWS::EC2::SubnetRouteTableAssociation'
    Properties:
      SubnetId: !Ref SubnetAPublic
      RouteTableId: !Ref RouteTablePublic
  RouteTableAssociationAPrivate:
    Type: 'AWS::EC2::SubnetRouteTableAssociation'
    Properties:
      SubnetId: !Ref SubnetAPrivate
      RouteTableId: !Ref RouteTablePrivate
  RouteTableAssociationBPublic:
    Type: 'AWS::EC2::SubnetRouteTableAssociation'
    Properties:
      SubnetId: !Ref SubnetBPublic
      RouteTableId: !Ref RouteTableBPublic
  RouteTableAssociationBPrivate:
    Type: 'AWS::EC2::SubnetRouteTableAssociation'
    Properties:
      SubnetId: !Ref SubnetBPrivate
      RouteTableId: !Ref RouteTableBPrivate
  RouteTablePublicInternetRoute: # should be RouteTablePublicAInternetRoute, but logical id was not changed for backward compatibility
    Type: 'AWS::EC2::Route'
    DependsOn: VPCGatewayAttachment
    Properties:
      RouteTableId: !Ref RouteTablePublic
      DestinationCidrBlock: '0.0.0.0/0'
      GatewayId: !Ref InternetGateway
  RouteTablePublicBInternetRoute:
    Type: 'AWS::EC2::Route'
    DependsOn: VPCGatewayAttachment
    Properties:
      RouteTableId: !Ref RouteTableBPublic
      DestinationCidrBlock: '0.0.0.0/0'
      GatewayId: !Ref InternetGateway
  NetworkAclPublic:
    Type: 'AWS::EC2::NetworkAcl'
    Properties:
      VpcId: !Ref VPC
      Tags:
      - Key: Name
        Value: Public
  NetworkAclPrivate:
    Type: 'AWS::EC2::NetworkAcl'
    Properties:
      VpcId: !Ref VPC
      Tags:
      - Key: Name
        Value: Private
  SubnetNetworkAclAssociationAPublic:
    Type: 'AWS::EC2::SubnetNetworkAclAssociation'
    Properties:
      SubnetId: !Ref SubnetAPublic
      NetworkAclId: !Ref NetworkAclPublic
  SubnetNetworkAclAssociationAPrivate:
    Type: 'AWS::EC2::SubnetNetworkAclAssociation'
    Properties:
      SubnetId: !Ref SubnetAPrivate
      NetworkAclId: !Ref NetworkAclPrivate
  SubnetNetworkAclAssociationBPublic:
    Type: 'AWS::EC2::SubnetNetworkAclAssociation'
    Properties:
      SubnetId: !Ref SubnetBPublic
      NetworkAclId: !Ref NetworkAclPublic
  SubnetNetworkAclAssociationBPrivate:
    Type: 'AWS::EC2::SubnetNetworkAclAssociation'
    Properties:
      SubnetId: !Ref SubnetBPrivate
      NetworkAclId: !Ref NetworkAclPrivate
  NetworkAclEntryInPublicAllowAll:
    Type: 'AWS::EC2::NetworkAclEntry'
    Properties:
      NetworkAclId: !Ref NetworkAclPublic
      RuleNumber: 99
      Protocol: -1
      RuleAction: allow
      Egress: false
      CidrBlock: '0.0.0.0/0'
  NetworkAclEntryOutPublicAllowAll:
    Type: 'AWS::EC2::NetworkAclEntry'
    Properties:
      NetworkAclId: !Ref NetworkAclPublic
      RuleNumber: 99
      Protocol: -1
      RuleAction: allow
      Egress: true
      CidrBlock: '0.0.0.0/0'
  NetworkAclEntryInPrivateAllowVPC:
    Type: 'AWS::EC2::NetworkAclEntry'
    Properties:
      NetworkAclId: !Ref NetworkAclPrivate
      RuleNumber: 99
      Protocol: -1
      RuleAction: allow
      Egress: false
      CidrBlock: '0.0.0.0/0'
  NetworkAclEntryOutPrivateAllowVPC:
    Type: 'AWS::EC2::NetworkAclEntry'
    Properties:
      NetworkAclId: !Ref NetworkAclPrivate
      RuleNumber: 99
      Protocol: -1
      RuleAction: allow
      Egress: true
      CidrBlock: '0.0.0.0/0'
Outputs:
  StackName:
    Description: 'Stack name'
    Value: !Sub '${AWS::StackName}'
  AZs:
    Description: 'AZs'
    Value: 2
    Export:
      Name: !Sub '${AWS::StackName}-AZs'
  AZA:
    Description: 'AZ of A'
    Value: !Select [0, !GetAZs '']
    Export:
      Name: !Sub '${AWS::StackName}-AZA'
  AZB:
    Description: 'AZ of B'
    Value: !Select [1, !GetAZs '']
    Export:
      Name: !Sub '${AWS::StackName}-AZB'
  ClassB:
    Description: 'Class B.'
    Value: !Ref ClassB
    Export:
      Name: !Sub '${AWS::StackName}-ClassB'
  VPC:
    Description: 'VPC.'
    Value: !Ref VPC
    Export:
      Name: !Sub '${AWS::StackName}-VPC'
  SubnetsPublic:
    Description: 'Subnets public.'
    Value: !Join [',', [!Ref SubnetAPublic, !Ref SubnetBPublic]]
    Export:
      Name: !Sub '${AWS::StackName}-SubnetsPublic'
  SubnetsPrivate:
    Description: 'Subnets private.'
    Value: !Join [',', [!Ref SubnetAPrivate, !Ref SubnetBPrivate]]
    Export:
      Name: !Sub '${AWS::StackName}-SubnetsPrivate'
  RouteTablePrivate: # deprecated in v4, will be removed in v5
    Description: 'Route table private (deprecated in v4, will be removed in v5).'
    Value: !Ref RouteTablePrivate
    Export:
      Name: !Sub '${AWS::StackName}-RouteTablePrivate'
  RouteTablePublic: # deprecated in v4, will be removed in v5
    Description: 'Route table public (deprecated in v4, will be removed in v5).'
    Value: !Ref RouteTablePublic
    Export:
      Name: !Sub '${AWS::StackName}-RouteTablePublic'
  RouteTablesPrivate:
    Description: 'Route tables private.'
    Value: !Join [',', [!Ref RouteTablePrivate, !Ref RouteTableBPrivate]]
    Export:
      Name: !Sub '${AWS::StackName}-RouteTablesPrivate'
  RouteTablesPublic:
    Description: 'Route tables public.'
    Value: !Join [',', [!Ref RouteTablePublic, !Ref RouteTableBPublic]]
    Export:
      Name: !Sub '${AWS::StackName}-RouteTablesPublic'
  SubnetAPublic:
    Description: 'Subnet A public.'
    Value: !Ref SubnetAPublic
    Export:
      Name: !Sub '${AWS::StackName}-SubnetAPublic'
  RouteTableAPublic:
    Description: 'Route table A public.'
    Value: !Ref RouteTablePublic
    Export:
      Name: !Sub '${AWS::StackName}-RouteTableAPublic'
  SubnetAPrivate:
    Description: 'Subnet A private.'
    Value: !Ref SubnetAPrivate
    Export:
      Name: !Sub '${AWS::StackName}-SubnetAPrivate'
  RouteTableAPrivate:
    Description: 'Route table A private.'
    Value: !Ref RouteTablePrivate
    Export:
      Name: !Sub '${AWS::StackName}-RouteTableAPrivate'
  SubnetBPublic:
    Description: 'Subnet B public.'
    Value: !Ref SubnetBPublic
    Export:
      Name: !Sub '${AWS::StackName}-SubnetBPublic'
  RouteTableBPublic:
    Description: 'Route table B public.'
    Value: !Ref RouteTableBPublic
    Export:
      Name: !Sub '${AWS::StackName}-RouteTableBPublic'
  SubnetBPrivate:
    Description: 'Subnet B private.'
    Value: !Ref SubnetBPrivate
    Export:
      Name: !Sub '${AWS::StackName}-SubnetBPrivate'
  RouteTableBPrivate:
    Description: 'Route table B private.'
    Value: !Ref RouteTableBPrivate
    Export:
      Name: !Sub '${AWS::StackName}-RouteTableBPrivate'