master.yaml

Description: >

    This template deploys a VPC with public and private subnets spread across
    two Availabilty Zones. It deploys an Internet Gateway and a pair of NAT
    Gateways, with the relevant routes in each of the subnets.

    It then deploys an ECS cluster distributed across multiple Availability Zones. 

    Finally, it deploys a pair of example ECS services from containers published in 
    Amazon EC2 Container Registry (Amazon ECR).

    Last Modified: 7th February 2018
    Author: Paul Lewis <pjlewis@amazon.co.uk>

Resources:

    VPC:
        Type: AWS::CloudFormation::Stack
        Properties:
            TemplateURL: https://s3.amazonaws.com/fargate-refarch-cloudformation/infrastructure/vpc.yaml
            Parameters:
                EnvironmentName:    !Ref AWS::StackName
                PrivateSubnet1CIDR: 10.180.24.0/21
                PrivateSubnet2CIDR: 10.180.32.0/21
                PublicSubnet1CIDR:  10.180.8.0/21
                PublicSubnet2CIDR:  10.180.16.0/21
                VpcCIDR:            10.180.0.0/16

    SecurityGroups:
        Type: AWS::CloudFormation::Stack
        Properties:
            TemplateURL: https://s3.amazonaws.com/fargate-refarch-cloudformation/infrastructure/security-groups.yaml
            Parameters: 
                EnvironmentName: !Ref AWS::StackName
                VPC: !GetAtt VPC.Outputs.VPC

    ALB:
        Type: AWS::CloudFormation::Stack
        Properties:
            TemplateURL: https://s3.amazonaws.com/fargate-refarch-cloudformation/infrastructure/load-balancers.yaml
            Parameters:
                EnvironmentName: !Ref AWS::StackName
                SecurityGroup: !GetAtt SecurityGroups.Outputs.LoadBalancerSecurityGroup
                Subnets: !GetAtt VPC.Outputs.PublicSubnets
                VPC: !GetAtt VPC.Outputs.VPC

    ECS:
        Type: AWS::CloudFormation::Stack
        Properties:
            TemplateURL: https://s3.amazonaws.com/fargate-refarch-cloudformation/infrastructure/ecs-cluster.yaml
            Parameters:
                EnvironmentName: !Ref AWS::StackName
                VPC: !GetAtt VPC.Outputs.VPC

    ProductService:
        Type: AWS::CloudFormation::Stack
        Properties:
            TemplateURL: https://s3.amazonaws.com/fargate-refarch-cloudformation/services/product-service/service.yaml
            Parameters:
                Cluster: !GetAtt ECS.Outputs.Cluster
                DesiredCount: 2
                ECSTaskExecutionRole: !GetAtt ECS.Outputs.ECSTaskExecutionRole
                Listener: !GetAtt ALB.Outputs.Listener 
                Path: /products
                SecurityGroup: !GetAtt SecurityGroups.Outputs.ECSHostSecurityGroup
                Subnets: !GetAtt VPC.Outputs.PrivateSubnets
                TaskCpu: 512
                TaskMemory: 1024
                VPC: !GetAtt VPC.Outputs.VPC

    WebsiteService:
        Type: AWS::CloudFormation::Stack
        Properties:
            TemplateURL: https://s3.amazonaws.com/fargate-refarch-cloudformation/services/website-service/service.yaml
            Parameters:
                Cluster: !GetAtt ECS.Outputs.Cluster
                DesiredCount: 2
                ECSTaskExecutionRole: !GetAtt ECS.Outputs.ECSTaskExecutionRole
                Listener: !GetAtt ALB.Outputs.Listener 
                Path: /
                ProductServiceUrl: !Join [ "/", [ !GetAtt ALB.Outputs.LoadBalancerUrl, "products" ]]
                SecurityGroup: !GetAtt SecurityGroups.Outputs.ECSHostSecurityGroup
                Subnets: !GetAtt VPC.Outputs.PrivateSubnets
                TaskCpu: 256
                TaskMemory: 512
                VPC: !GetAtt VPC.Outputs.VPC

Outputs:

    ProductServiceUrl: 
        Description: The URL endpoint for the product service
        Value: !Join [ "/", [ !GetAtt ALB.Outputs.LoadBalancerUrl, "products" ]]

    WebsiteServiceUrl: 
        Description: The URL endpoint for the website service
        Value: !Join ["", [ !GetAtt ALB.Outputs.LoadBalancerUrl, "/" ]]