AWS API Gateway HTTP proxy CloudFormation template

cloudformation.yml

AWSTemplateFormatVersion: 2010-09-09
Parameters:
  HostName:
    Type: String
    Description: Name of the instance, in host-friendly name - underscored. Will be concatenated into .on-pulse.com domain
  ProxyHost:
    Type: String
    Description: Host that should be proxied
  HostedZoneName:
    Type: String
    Description: "Zone for domain"
    Default: "on-pulse.com"
Resources:
  APIGateway:
    Type: "AWS::ApiGateway::RestApi"
    Properties:
      Name: !Join ['-', [!Ref 'HostName', 'proxy']]
      Description: !Join ['', [!Ref 'HostName', '.on-pulse.com proxy to ', !Ref ProxyHost]]
      BinaryMediaTypes:
        - 'application/font-woff'
        - 'application/vnd.ms-fontobject'
        - 'font/ttf'
        - 'image/png'
        - 'image/jpg'
        - 'image/jpeg'
        - 'image/vnd.microsoft.icon'
        - 'application/zip'
        - 'application/vnd.ms-excel'
        - 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
  APIGatewayRootMethod:
    Type: "AWS::ApiGateway::Method"
    Properties:
      RestApiId: !Ref APIGateway
      ResourceId: !GetAtt [APIGateway, RootResourceId]
      HttpMethod: "ANY"
      AuthorizationType: "NONE"
      Integration:
        Type: "HTTP_PROXY"
        IntegrationHttpMethod: "ANY"
        Uri: !Join ['', ['https://', !Ref ProxyHost]]
  APIGatewayProxyResource:
    Type: "AWS::ApiGateway::Resource"
    Properties:
      RestApiId: !Ref APIGateway
      ParentId: !GetAtt [APIGateway, RootResourceId]
      PathPart: "{proxy+}"
  APIGatewayProxyMethod:
    Type: "AWS::ApiGateway::Method"
    Properties:
      RestApiId: !Ref APIGateway
      ResourceId: !Ref APIGatewayProxyResource
      HttpMethod: "ANY"
      AuthorizationType: "NONE"
      RequestParameters:
        method.request.path.proxy: true
      Integration:
        Type: "HTTP_PROXY"
        IntegrationHttpMethod: "ANY"
        Uri: !Join ['', ['https://', !Ref ProxyHost, '/{proxy}']]
        CacheKeyParameters:
          - 'method.request.path.proxy'
        RequestParameters:
          integration.request.path.proxy: 'method.request.path.proxy'
      MethodResponses:
        - StatusCode: 200
          ResponseParameters:
            method.response.header.Content-Type: true
  APIGatewayDeployment:
    Type: "AWS::ApiGateway::Deployment"
    DependsOn:
      - "APIGatewayRootMethod"
    Properties:
      RestApiId: !Ref APIGateway
      StageName: "production"
  GatewayDomain:
    Type: "AWS::ApiGateway::DomainName"
    Properties:
      DomainName: !Join ['', [!Ref 'HostName', '.', !Ref 'HostedZoneName']]
      EndpointConfiguration:
        Types:
          - REGIONAL
      RegionalCertificateArn: arn:aws:acm:eu-central-1:694314498149:certificate/783c33a8-bc33-43f0-ab9d-800a0f1d59b1
  PathMapping:
    Type: "AWS::ApiGateway::BasePathMapping"
    DependsOn:
      - "APIGatewayDeployment"
    Properties:
      RestApiId: !Ref APIGateway
      DomainName: !Join ['', [!Ref 'HostName', '.', !Ref 'HostedZoneName']]
      Stage: "production"
  OnPulseHost:
    Type: AWS::Route53::RecordSet
    Properties:
      HostedZoneName: !Join ['', [!Ref 'HostedZoneName', '.']]
      Name: !Join ['', [!Ref 'HostName', '.', !Ref 'HostedZoneName', '.']]
      Type: "A"
      AliasTarget:
        DNSName: !GetAtt GatewayDomain.RegionalDomainName
        HostedZoneId: "Z1U9ULNL0V5AJ3"
Outputs:
  ProxyURL:
    Description: on-pulse.com URL for proxy instance
    Value: !Join ['', ['https://', !Ref 'HostName', '.', !Ref 'HostedZoneName']]