# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. 
# SPDX-License-Identifier: MIT-0

---
AWSTemplateFormatVersion: "2010-09-09"

Description: >
  This template sets up a Global Accelerator configuration for 
  a service hosted in two k8s clusters.

Metadata:
  AWS::CloudFormation::Interface:
    ParameterGroups:
      -
         Label:
          default: "Stack Configuration"
         Parameters:
          - Nlb1
          - Nlb2
          - EndpointRegion

Parameters:
  Nlb1:
    Type: String
    Description: "ARN for the first microservice public endpoint"
  Nlb2:
    Type: String
    Description: "ARN for the second microservice public endpoint"
  EndpointRegion:
    Type: String
    Description: "Region name"

Resources:
  Accelerator:
    Type: AWS::GlobalAccelerator::Accelerator
    Properties:
      Name: "k8s-DJ-accelerator"
      Enabled: true

  Listener:
    Type: AWS::GlobalAccelerator::Listener
    Properties:
      AcceleratorArn:
        Ref: Accelerator
      Protocol: TCP
      PortRanges:
      - FromPort: 9080
        ToPort: 9080

  EndpointGroup:
    Type: AWS::GlobalAccelerator::EndpointGroup
    Properties:
      ListenerArn:
        Ref: Listener
      EndpointGroupRegion:
        Ref: EndpointRegion
      TrafficDialPercentage: 100
      EndpointConfigurations:
      - EndpointId: !Ref Nlb1
        Weight: 50
      - EndpointId: !Ref Nlb2
        Weight: 50


Outputs:
  AcceleratorDnsName:
    Description: Accelerator DNS Name
    Value:
      Fn::GetAtt:
      - Accelerator
      - DnsName