「2回以上やることは、なんでも自動化されるべきだ」

本当にそう思います。

ROSAの検証の度、AWS CLIで作っているもの

Deployment models for AWS Network Firewall より。これのALBが無いやつ。
作っているROSAはSTS有効化、Multi-AZ、自前のVPC...

全部CFnにしてやるー(^q^)

AWSTemplateFormatVersion: "2010-09-09"
Description: 
  VPC, Subnet

Metadata: 
  "AWS::CloudFormation::Interface": 
    ParameterGroups: 
      - Label: 
          default: "Project Name Prefix"
        Parameters: 
          - ClusterPrefix
      - Label: 
          default: "Network Configuration"
        Parameters: 
          - VPCCIDR
          - FirewallSubnetACIDR
          - FirewallSubnetCCIDR
          - FirewallSubnetDCIDR
          - ProtectedSubnetACIDR
          - ProtectedSubnetCCIDR
          - ProtectedSubnetDCIDR
          - PrivateSubnetACIDR
          - PrivateSubnetCCIDR
          - PrivateSubnetDCIDR
    ParameterLabels: 
      VPCCIDR: 
        default: "VPC CIDR"
      FirewallSubnetACIDR: 
        default: "FirewallSubnetA CIDR"
      FirewallSubnetCCIDR: 
        default: "FirewallSubnetC CIDR"
      FirewallSubnetCCIDR: 
        default: "FirewallSubnetD CIDR"
      ProtectedSubnetACIDR: 
        default: "ProtectedSubnetA CIDR"
      ProtectedSubnetCCIDR: 
        default: "ProtectedSubnetC CIDR"
      ProtectedSubnetCCIDR: 
        default: "ProtectedSubnetD CIDR"
      PrivateSubnetACIDR: 
        default: "PrivateSubnetA CIDR"
      PrivateSubnetCCIDR: 
        default: "PrivateSubnetC CIDR"
      PrivateSubnetCCIDR: 
        default: "PrivateSubnetD CIDR"

# ------------------------------------------------------------#
# Input Parameters
# ------------------------------------------------------------# 
Parameters:
  ClusterPrefix:
    Type: String
    Default: "ROSA"

  VPCCIDR:
    Type: String
    Default: "10.0.0.0/16"

  FirewallSubnetACIDR:
    Type: String
    Default: "10.0.10.0/24"
  FirewallSubnetCCIDR:
    Type: String
    Default: "10.0.11.0/24"
  FirewallSubnetDCIDR:
    Type: String
    Default: "10.0.12.0/24"
  ProtectedSubnetACIDR:
    Type: String
    Default: "10.0.20.0/24"
  ProtectedSubnetCCIDR:
    Type: String
    Default: "10.0.21.0/24"
  ProtectedSubnetDCIDR:
    Type: String
    Default: "10.0.22.0/24"

  PrivateSubnetACIDR:
    Type: String
    Default: "10.0.30.0/24"
  PrivateSubnetCCIDR:
    Type: String
    Default: "10.0.31.0/24"
  PrivateSubnetDCIDR:
    Type: String
    Default: "10.0.32.0/24"

Resources: 
# ------------------------------------------------------------#
#  VPC
# ------------------------------------------------------------#
# VPC
  VPC: 
    Type: "AWS::EC2::VPC"
    Properties: 
      CidrBlock: !Ref VPCCIDR
      EnableDnsSupport: "true"
      EnableDnsHostnames: "true"
      InstanceTenancy: default
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-vpc"

# InternetGateway
  InternetGateway: 
    Type: "AWS::EC2::InternetGateway"
    Properties: 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-igw"

# IGW Attach
  InternetGatewayAttachment: 
    Type: "AWS::EC2::VPCGatewayAttachment"
    Properties: 
      InternetGatewayId: !Ref InternetGateway
      VpcId: !Ref VPC

# DHCPOptions
  DHCPOptions:
    Type: AWS::EC2::DHCPOptions
    Properties:
      DomainName: ap-northeast-1.compute.internal
      DomainNameServers:
        - AmazonProvidedDNS
      Tags:
        - Key: Name
          Value: !Sub "${ClusterPrefix}-dhcp-options"
  DHCPOptionsAssociation:
    Type: AWS::EC2::VPCDHCPOptionsAssociation
    Properties:
      VpcId: !Ref VPC
      DhcpOptionsId: !Ref DHCPOptions

# ------------------------------------------------------------#
#  Subnet
# ------------------------------------------------------------#          
# FirewallSubnetA
  FirewallSubnetA: 
    Type: "AWS::EC2::Subnet"
    Properties: 
      AvailabilityZone: "ap-northeast-1a"
      CidrBlock: !Ref FirewallSubnetACIDR
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-firewall-subnet-a"
# FirewallSubnetC
  FirewallSubnetC: 
    Type: "AWS::EC2::Subnet"
    Properties: 
      AvailabilityZone: "ap-northeast-1c"
      CidrBlock: !Ref FirewallSubnetCCIDR
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-firewall-subnet-c"
# FirewallSubnetD
  FirewallSubnetD: 
    Type: "AWS::EC2::Subnet"
    Properties: 
      AvailabilityZone: "ap-northeast-1d"
      CidrBlock: !Ref FirewallSubnetDCIDR
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-firewall-subnet-d"
# ProtectedSubnetA
  ProtectedSubnetA: 
    Type: "AWS::EC2::Subnet"
    Properties: 
      AvailabilityZone: "ap-northeast-1a"
      CidrBlock: !Ref ProtectedSubnetACIDR
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-protected-subnet-a"
# ProtectedSubnetC
  ProtectedSubnetC: 
    Type: "AWS::EC2::Subnet"
    Properties: 
      AvailabilityZone: "ap-northeast-1c"
      CidrBlock: !Ref ProtectedSubnetCCIDR
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-protected-subnet-c"
# ProtectedSubnetD
  ProtectedSubnetD: 
    Type: "AWS::EC2::Subnet"
    Properties: 
      AvailabilityZone: "ap-northeast-1d"
      CidrBlock: !Ref ProtectedSubnetDCIDR
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-protected-subnet-d"
# PrivateSubnetA
  PrivateSubnetA: 
    Type: "AWS::EC2::Subnet"
    Properties: 
      AvailabilityZone: "ap-northeast-1a"
      CidrBlock: !Ref PrivateSubnetACIDR
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-private-subnet-a"
# PrivateSubnetC
  PrivateSubnetC: 
    Type: "AWS::EC2::Subnet"
    Properties: 
      AvailabilityZone: "ap-northeast-1c"
      CidrBlock: !Ref PrivateSubnetCCIDR
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-private-subnet-c"
# PrivateSubnetD
  PrivateSubnetD: 
    Type: "AWS::EC2::Subnet"
    Properties: 
      AvailabilityZone: "ap-northeast-1d"
      CidrBlock: !Ref PrivateSubnetDCIDR
      VpcId: !Ref VPC
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-private-subnet-d"

# ------------------------------------------------------------#
#  RouteTable
# ------------------------------------------------------------#          
# IGWRouteTable
  IGWRouteTable: 
    Type: "AWS::EC2::RouteTable"
    Properties: 
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-igw-route"
# FirewallRouteTableA
  FirewallRouteTableA: 
    Type: "AWS::EC2::RouteTable"
    Properties: 
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-firewall-route-a"
# FirewallRouteTableC
  FirewallRouteTableC: 
    Type: "AWS::EC2::RouteTable"
    Properties: 
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-firewall-route-c"
# FirewallRouteTableD
  FirewallRouteTableD: 
    Type: "AWS::EC2::RouteTable"
    Properties: 
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-firewall-route-d"
# ProtectedRouteTableA
  ProtectedRouteTableA: 
    Type: "AWS::EC2::RouteTable"
    Properties: 
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-protected-route-a"
# ProtectedRouteTableC
  ProtectedRouteTableC: 
    Type: "AWS::EC2::RouteTable"
    Properties: 
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-protected-route-c"
# ProtectedRouteTableD
  ProtectedRouteTableD: 
    Type: "AWS::EC2::RouteTable"
    Properties: 
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-protected-route-d"
# PrivateRouteTableA
  PrivateRouteTableA: 
    Type: "AWS::EC2::RouteTable"
    Properties: 
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-private-route-a"
# PrivateRouteTableC
  PrivateRouteTableC: 
    Type: "AWS::EC2::RouteTable"
    Properties: 
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-private-route-c"
# PrivateRouteTableD
  PrivateRouteTableD: 
    Type: "AWS::EC2::RouteTable"
    Properties: 
      VpcId: !Ref VPC 
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-private-route-d"

# ------------------------------------------------------------#
# NAT Gateway
# ------------------------------------------------------------#
# EIP for NATGatewayA
  NATGatewayAEIP: 
    Type: "AWS::EC2::EIP"
    Properties: 
      Domain: vpc
# NATGatewayA
  NATGatewayA: 
    Type: "AWS::EC2::NatGateway"
    DependsOn:
      - NATGatewayAEIP
      - ProtectedSubnetA
    Properties: 
      AllocationId: !GetAtt NATGatewayAEIP.AllocationId 
      SubnetId: !Ref ProtectedSubnetA
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-natgw-a"
# EIP for NATGatewayC
  NATGatewayCEIP: 
    Type: "AWS::EC2::EIP"
    Properties: 
      Domain: vpc
# NATGatewayC
  NATGatewayC: 
    Type: "AWS::EC2::NatGateway"
    DependsOn:
      - NATGatewayCEIP
      - ProtectedSubnetC
    Properties: 
      AllocationId: !GetAtt NATGatewayCEIP.AllocationId 
      SubnetId: !Ref ProtectedSubnetC
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-natgw-c"
# EIP for NATGatewayD
  NATGatewayDEIP: 
    Type: "AWS::EC2::EIP"
    Properties: 
      Domain: vpc
# NATGatewayD
  NATGatewayD: 
    Type: "AWS::EC2::NatGateway"
    DependsOn:
      - NATGatewayDEIP
      - ProtectedSubnetD
    Properties: 
      AllocationId: !GetAtt NATGatewayDEIP.AllocationId 
      SubnetId: !Ref ProtectedSubnetD
      Tags: 
        - Key: Name
          Value: !Sub "${ClusterPrefix}-natgw-d"
# ------------------------------------------------------------#
# Network Firewall
# ------------------------------------------------------------#
# AWS Network Firewall:
  NetworkFirewall:
    Type: AWS::NetworkFirewall::Firewall
    Properties:
      FirewallName: !Sub "${ClusterPrefix}-firewall"
      FirewallPolicyArn: !Ref EgressFirewallPolicy
      VpcId: !Ref VPC 
      SubnetMappings:
        - SubnetId: !Ref FirewallSubnetA
        - SubnetId: !Ref FirewallSubnetC
        - SubnetId: !Ref FirewallSubnetD
      Tags:
        - Key: Name
          Value: !Sub "${ClusterPrefix}-network-firewall"

  ICMPAlertStatefulRuleGroup:
    Type: 'AWS::NetworkFirewall::RuleGroup'
    Properties:
      RuleGroupName: !Sub "${ClusterPrefix}-icmp-alert"
      Type: STATEFUL
      Capacity: 100
      RuleGroup:
        RulesSource:
          StatefulRules:
            - Action: ALERT
              Header:
                Direction: ANY
                Protocol: ICMP
                Destination: ANY
                Source: ANY
                DestinationPort: ANY
                SourcePort: ANY
              RuleOptions:
                - Keyword: "sid:1"
      Tags:
        - Key: Name
          Value: !Sub "${ClusterPrefix}-icmp-alert" 
  DomainAllowStatefulRuleGroup:
    Type: 'AWS::NetworkFirewall::RuleGroup'
    Properties:
      RuleGroupName: !Sub "${ClusterPrefix}-domain-allow"
      Type: STATEFUL
      Capacity: 100
      RuleGroup:
        RuleVariables:
          IPSets:
            HOME_NET:
              Definition:
                - !Ref VPCCIDR
        RulesSource:
          RulesSourceList:
            TargetTypes:
              - HTTP_HOST
              - TLS_SNI
                # TODO : I'll fix them later...
            Targets: 
              - ".nosnch.in"
              - ".osdsecuritylogs.splunkcloud.com"
              - ".quay.io"
              - ".quay.rhcloud.com"
              - ".rhel.pool.ntp.org"
              - ".amazonaws.com"
              - "cluster-id-shard.ap-northeast-1.amazonaws.com"
              - "api.access.redhat.com"
              - "api.deadmanssnitch.com"
              - "api.openshift.com"
              - "api.pagerduty.com"
              - "art-rhcos-ci.s3.amazonaws.com"
              - "cert-api.access.redhat.com"
              - "cloud.redhat.com"
              - "cm-quay-production-s3.s3.amazonaws.com"
              - "console.redhat.com"
              - "ec2.amazonaws.com"
              - "ec2.ap-northeast-1.amazonaws.com"
              - "elasticloadbalancing.ap-northeast-1.amazonaws.com"
              - "events.amazonaws.com"
              - "events.pagerduty.com"
              - "http-inputs-osdsecuritylogs.splunkcloud.com"
              - "iam.amazonaws.com"
              - "infogw.api.openshift.com"
              - "mirror.openshift.com"
              - "observatorium.api.openshift.com"
              - "openshift.org"
              - "quay-registry.s3.amazonaws.com"
              - "quayio-production-s3.s3.amazonaws.com"
              - "registry.access.redhat.com"
              - "registry.redhat.io"
              - "route53.amazonaws.com"
              - "sftp.access.redhat.com"
              - "sso.redhat.com"
              - "storage.googleapis.com"
              - "sts.amazonaws.com"
            GeneratedRulesType: "ALLOWLIST"
      Tags:
        - Key: Name
          Value: !Sub "${ClusterPrefix}-domain-allow"   
  EgressFirewallPolicy:
    Type: AWS::NetworkFirewall::FirewallPolicy
    Properties:
      FirewallPolicyName: !Sub "${ClusterPrefix}-firewall-policy"
      FirewallPolicy:
        StatelessDefaultActions:
          - 'aws:forward_to_sfe'
        StatelessFragmentDefaultActions:
          - 'aws:forward_to_sfe'
        StatefulRuleGroupReferences:
          - ResourceArn: !Ref DomainAllowStatefulRuleGroup
          - ResourceArn: !Ref ICMPAlertStatefulRuleGroup
      Tags:
        - Key: Name
          Value: !Sub "${ClusterPrefix}-firewall-policy"

  FirewallLogFlowGroup:
    Type: AWS::Logs::LogGroup
    Properties:
      LogGroupName: !Sub "/${ClusterPrefix}/anfw/flow"
  FirewallLogAlertGroup:
    Type: AWS::Logs::LogGroup
    Properties:
      LogGroupName: !Sub "/${ClusterPrefix}/anfw/alert"
  FirewallLog:
    Type: AWS::NetworkFirewall::LoggingConfiguration
    Properties:
      FirewallArn: !Ref NetworkFirewall
      LoggingConfiguration:
        LogDestinationConfigs:
          - LogType: FLOW
            LogDestinationType: CloudWatchLogs
            LogDestination:
              logGroup: !Sub "/${ClusterPrefix}/anfw/flow"
          - LogType: ALERT
            LogDestinationType: CloudWatchLogs
            LogDestination:
              logGroup: !Sub "/${ClusterPrefix}/anfw/alert"

# ------------------------------------------------------------#
# Route
# ------------------------------------------------------------# 
# IGWRouteA
  IGWRouteA: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref IGWRouteTable
      DestinationCidrBlock: !Ref ProtectedSubnetACIDR
      VpcEndpointId: !Select [ 1, Fn::Split: [ ":", !Select [ 0, !GetAtt NetworkFirewall.EndpointIds ] ] ]
# IGWRouteC
  IGWRouteC: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref IGWRouteTable
      DestinationCidrBlock: !Ref ProtectedSubnetCCIDR
      VpcEndpointId: !Select [ 1, Fn::Split: [ ":", !Select [ 1, !GetAtt NetworkFirewall.EndpointIds ] ] ]
# IGWRouteD
  IGWRouteD: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref IGWRouteTable
      DestinationCidrBlock: !Ref ProtectedSubnetDCIDR
      VpcEndpointId: !Select [ 1, Fn::Split: [ ":", !Select [ 2, !GetAtt NetworkFirewall.EndpointIds ] ] ]
# FirewallRouteA
  FirewallRouteA: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref FirewallRouteTableA
      DestinationCidrBlock: "0.0.0.0/0"
      GatewayId: !Ref InternetGateway 
# FirewallRouteC
  FirewallRouteC: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref FirewallRouteTableC
      DestinationCidrBlock: "0.0.0.0/0"
      GatewayId: !Ref InternetGateway 
# FirewallRouteD
  FirewallRouteD: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref FirewallRouteTableD
      DestinationCidrBlock: "0.0.0.0/0"
      GatewayId: !Ref InternetGateway 
# ProtectedRouteA
  ProtectedRouteA: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref ProtectedRouteTableA
      DestinationCidrBlock: "0.0.0.0/0"
      VpcEndpointId: !Select [ 1, Fn::Split: [ ":", !Select [ 0, !GetAtt NetworkFirewall.EndpointIds ] ] ]
# ProtectedRouteC
  ProtectedRouteC: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref ProtectedRouteTableC
      DestinationCidrBlock: "0.0.0.0/0"
      VpcEndpointId: !Select [ 1, Fn::Split: [ ":", !Select [ 1, !GetAtt NetworkFirewall.EndpointIds ] ] ]
# ProtectedRouteD
  ProtectedRouteD: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref ProtectedRouteTableD
      DestinationCidrBlock: "0.0.0.0/0"
      VpcEndpointId: !Select [ 1, Fn::Split: [ ":", !Select [ 2, !GetAtt NetworkFirewall.EndpointIds ] ] ]

# PrivateRouteA
  PrivateRouteA: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref PrivateRouteTableA
      DestinationCidrBlock: "0.0.0.0/0"
      NatGatewayId: !Ref NATGatewayA
# PrivateRouteC
  PrivateRouteC: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref PrivateRouteTableC
      DestinationCidrBlock: "0.0.0.0/0"
      NatGatewayId: !Ref NATGatewayC
# PrivateRouteD
  PrivateRouteD: 
    Type: "AWS::EC2::Route"
    Properties: 
      RouteTableId: !Ref PrivateRouteTableD
      DestinationCidrBlock: "0.0.0.0/0"
      NatGatewayId: !Ref NATGatewayD

# ------------------------------------------------------------#
# RouteTable Associate
# ------------------------------------------------------------# 
# IGWRouteTableAssociation
  IGWRouteTableAssociation: 
    Type: "AWS::EC2::GatewayRouteTableAssociation"
    Properties: 
      GatewayId: !Ref InternetGateway
      RouteTableId: !Ref IGWRouteTable
# FirewallSubnetARouteTableAssociation
  FirewallSubnetARouteTableAssociation: 
    Type: "AWS::EC2::SubnetRouteTableAssociation"
    Properties: 
      SubnetId: !Ref FirewallSubnetA
      RouteTableId: !Ref FirewallRouteTableA
# FirewallSubnetCRouteTableAssociation
  FirewallSubnetCRouteTableAssociation: 
    Type: "AWS::EC2::SubnetRouteTableAssociation"
    Properties: 
      SubnetId: !Ref FirewallSubnetC
      RouteTableId: !Ref FirewallRouteTableC
# FirewallSubnetDRouteTableAssociation
  FirewallSubnetDRouteTableAssociation: 
    Type: "AWS::EC2::SubnetRouteTableAssociation"
    Properties: 
      SubnetId: !Ref FirewallSubnetD
      RouteTableId: !Ref FirewallRouteTableD
# ProtectedSubnetARouteTableAssociation
  ProtectedSubnetARouteTableAssociation: 
    Type: "AWS::EC2::SubnetRouteTableAssociation"
    Properties: 
      SubnetId: !Ref ProtectedSubnetA
      RouteTableId: !Ref ProtectedRouteTableA
# ProtectedSubnetCRouteTableAssociation
  ProtectedSubnetCRouteTableAssociation: 
    Type: "AWS::EC2::SubnetRouteTableAssociation"
    Properties: 
      SubnetId: !Ref ProtectedSubnetC
      RouteTableId: !Ref ProtectedRouteTableC
# ProtectedSubnetDRouteTableAssociation
  ProtectedSubnetDRouteTableAssociation: 
    Type: "AWS::EC2::SubnetRouteTableAssociation"
    Properties: 
      SubnetId: !Ref ProtectedSubnetD
      RouteTableId: !Ref ProtectedRouteTableD
# PrivateSubnetARouteTableAssociation
  PrivateSubnetARouteTableAssociation: 
    Type: "AWS::EC2::SubnetRouteTableAssociation"
    Properties: 
      SubnetId: !Ref PrivateSubnetA
      RouteTableId: !Ref PrivateRouteTableA
# PrivateSubnetCRouteTableAssociation
  PrivateSubnetCRouteTableAssociation: 
    Type: "AWS::EC2::SubnetRouteTableAssociation"
    Properties: 
      SubnetId: !Ref PrivateSubnetC
      RouteTableId: !Ref PrivateRouteTableC
# PrivateSubnetDRouteTableAssociation
  PrivateSubnetDRouteTableAssociation: 
    Type: "AWS::EC2::SubnetRouteTableAssociation"
    Properties: 
      SubnetId: !Ref PrivateSubnetD
      RouteTableId: !Ref PrivateRouteTableD

# ------------------------------------------------------------#
# Output Parameters
# ------------------------------------------------------------#                
Outputs:
# VPC
  VPC:
    Value: !Ref VPC
    Export:
      Name: !Sub "${ClusterPrefix}-vpc"

  VPCCIDR:
    Value: !Ref VPCCIDR
    Export:
      Name: !Sub "${ClusterPrefix}-vpc-cidr"

# Subnet
  FirewallSubnetA:
    Value: !Ref FirewallSubnetA
    Export:
      Name: !Sub "${ClusterPrefix}-firewall-subnet-a"
  FirewallSubnetACIDR:
    Value: !Ref FirewallSubnetACIDR
    Export:
      Name: !Sub "${ClusterPrefix}-firewall-subnet-a-cidr"
  FirewallSubnetC:
    Value: !Ref FirewallSubnetC
    Export:
      Name: !Sub "${ClusterPrefix}-firewall-subnet-c"
  FirewallSubnetCCIDR:
    Value: !Ref FirewallSubnetCCIDR
    Export:
      Name: !Sub "${ClusterPrefix}-firewall-subnet-c-cidr"
  FirewallSubnetD:
    Value: !Ref FirewallSubnetD
    Export:
      Name: !Sub "${ClusterPrefix}-firewall-subnet-d"
  FirewallSubnetDCIDR:
    Value: !Ref FirewallSubnetDCIDR
    Export:
      Name: !Sub "${ClusterPrefix}-firewall-subnet-d-cidr"
  ProtectedSubnetA:
    Value: !Ref ProtectedSubnetA
    Export:
      Name: !Sub "${ClusterPrefix}-protected-subnet-a"
  ProtectedSubnetACIDR:
    Value: !Ref ProtectedSubnetACIDR
    Export:
      Name: !Sub "${ClusterPrefix}-protected-subnet-a-cidr"
  ProtectedSubnetC:
    Value: !Ref ProtectedSubnetC
    Export:
      Name: !Sub "${ClusterPrefix}-protected-subnet-c"
  ProtectedSubnetCCIDR:
    Value: !Ref ProtectedSubnetCCIDR
    Export:
      Name: !Sub "${ClusterPrefix}-protected-subnet-c-cidr"
  ProtectedSubnetD:
    Value: !Ref ProtectedSubnetD
    Export:
      Name: !Sub "${ClusterPrefix}-protected-subnet-d"
  ProtectedSubnetDCIDR:
    Value: !Ref ProtectedSubnetDCIDR
    Export:
      Name: !Sub "${ClusterPrefix}-protected-subnet-d-cidr"
  PrivateSubnetA:
    Value: !Ref PrivateSubnetA
    Export:
      Name: !Sub "${ClusterPrefix}-private-subnet-a"
  PrivateSubnetACIDR:
    Value: !Ref PrivateSubnetACIDR
    Export:
      Name: !Sub "${ClusterPrefix}-private-subnet-a-cidr"
  PrivateSubnetC:
    Value: !Ref PrivateSubnetC
    Export:
      Name: !Sub "${ClusterPrefix}-private-subnet-c"
  PrivateSubnetCCIDR:
    Value: !Ref PrivateSubnetCCIDR
    Export:
      Name: !Sub "${ClusterPrefix}-private-subnet-c-cidr"
  PrivateSubnetD:
    Value: !Ref PrivateSubnetD
    Export:
      Name: !Sub "${ClusterPrefix}-private-subnet-d"
  PrivateSubnetDCIDR:
    Value: !Ref PrivateSubnetDCIDR
    Export:
      Name: !Sub "${ClusterPrefix}-private-subnet-d-cidr"

# Route
  FirewallRouteTableA:
    Value: !Ref FirewallRouteTableA
    Export:
      Name: !Sub "${ClusterPrefix}-firewall-route-a"
  FirewallRouteTableC:
    Value: !Ref FirewallRouteTableC
    Export:
      Name: !Sub "${ClusterPrefix}-firewall-route-c"
  FirewallRouteTableD:
    Value: !Ref FirewallRouteTableD
    Export:
      Name: !Sub "${ClusterPrefix}-firewall-route-d"
  ProtectedRouteTableA:
    Value: !Ref ProtectedRouteTableA
    Export:
      Name: !Sub "${ClusterPrefix}-protected-route-a"
  ProtectedRouteTableC:
    Value: !Ref ProtectedRouteTableC
    Export:
      Name: !Sub "${ClusterPrefix}-protected-route-c"
  ProtectedRouteTableD:
    Value: !Ref ProtectedRouteTableD
    Export:
      Name: !Sub "${ClusterPrefix}-protected-route-d"
  PrivateRouteTableA:
    Value: !Ref PrivateRouteTableA
    Export:
      Name: !Sub "${ClusterPrefix}-private-route-a"
  PrivateRouteTableC:
    Value: !Ref PrivateRouteTableC
    Export:
      Name: !Sub "${ClusterPrefix}-private-route-c"
  PrivateRouteTableD:
    Value: !Ref PrivateRouteTableD
    Export:
      Name: !Sub "${ClusterPrefix}-private-route-d"

# VPCe
  NetworkFirewallVPCeA:
    Value: !Select [ 1, Fn::Split: [ ":", !Select [ 0, !GetAtt NetworkFirewall.EndpointIds ] ] ]
    Export:
      Name: !Sub "${ClusterPrefix}-network-firewall-a"
  NetworkFirewallVPCeC:
    Value: !Select [ 1, Fn::Split: [ ":", !Select [ 1, !GetAtt NetworkFirewall.EndpointIds ] ] ]
    Export:
      Name: !Sub "${ClusterPrefix}-network-firewall-c"
  NetworkFirewallVPCeD:
    Value: !Select [ 1, Fn::Split: [ ":", !Select [ 2, !GetAtt NetworkFirewall.EndpointIds ] ] ]
    Export:
      Name: !Sub "${ClusterPrefix}-network-firewall-d"

愚痴：NetworkFirewallをCFnから作ったとき、VPCeのIdが取れない

以下の通り、リストで返しやがるので、ちょっと不格好だけど組み込み関数を駆使した。

`AWS::NetworkFirewall::Firewall`のReturn valuesの仕様

EndpointIds
The unique IDs of the firewall endpoints for all of the subnets that you attached to the firewall.
The subnets are not listed in any particular order.
For example: ["us-west-2c:vpce-111122223333", "us-west-2a:vpce-987654321098", "us-west-2b:vpce-012345678901"].

同じように困っている人

AWS CloudFormation deployment of AWS Network Firewall
Custom ResourceでLambdaをcallする手順に案内されていて笑った

やったこと

Value: !Select [ 1, Fn::Split: [ ":", !Select [ 0, !GetAtt NetworkFirewall.EndpointIds ] ] ]

注意事項

Productionで使わないこと
インストールにコケても泣かないこと
私がこの記事をROSA側の変更に合わせてメンテすることはない