master.yaml

Description: >

    This template deploys a VPC, with a pair of public and private subnets spread 
    across two Availabilty Zones. It deploys an Internet Gateway, with a default 
    route on the public subnets. It deploys a pair of NAT Gateways (one in each AZ), 
    and default routes for them in the private subnets.

    It then deploys a highly available ECS cluster using an AutoScaling Group, with 
    ECS hosts distributed across multiple Availability Zones. 

Parameters:
    DataDogApiKey:
        Type: String
        Default: ''
    ClusterSize:
        Description: How many ECS hosts do you want to initially deploy?
        Type: Number
        Default: 4
    InstanceType:
        Description: Which instance type should we use to build the ECS cluster?
        Type: String
        Default: t2.medium

Resources:

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

    SecurityGroups:
        Type: AWS::CloudFormation::Stack
        Properties:
            TemplateURL: https://s3.amazonaws.com/aws-ecs-jenkins/infrastructure/security-groups.yaml
            Parameters: 
                EnvironmentName: !Ref AWS::StackName
                VPC: !GetAtt VPC.Outputs.VPC
                VPCCidr: !GetAtt VPC.Outputs.VPCCidr

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

    ECS:
        Type: AWS::CloudFormation::Stack
        Properties:
            TemplateURL: https://s3.amazonaws.com/aws-ecs-jenkins/infrastructure/ecs-cluster.yaml
            Parameters:
                DataDogApiKey: !Ref DataDogApiKey
                ClusterSize: !Ref ClusterSize
                InstanceType: !Ref InstanceType
                EnvironmentName: !Ref AWS::StackName
                VPC: !GetAtt VPC.Outputs.VPC
                SecurityGroup: !GetAtt SecurityGroups.Outputs.ECSHostSecurityGroup
                Subnets: !GetAtt VPC.Outputs.PrivateSubnets
                LoadBalancerSubnets: !GetAtt VPC.Outputs.PublicSubnets
                LoadBalancerSecurityGroup: !GetAtt SecurityGroups.Outputs.LoadBalancerSecurityGroup
                EFSMountTargetSecurityGroup: !GetAtt SecurityGroups.Outputs.EFSMountTargetSecurityGroup

    LifecycleHook:
        Type: AWS::CloudFormation::Stack
        Properties:
            TemplateURL: https://s3.amazonaws.com/aws-ecs-jenkins/infrastructure/lifecyclehook.yaml
            Parameters:
                Cluster: !GetAtt ECS.Outputs.Cluster
                ECSAutoScalingGroupName: !GetAtt ECS.Outputs.ECSAutoScalingGroupName

    JenkinsService:
        Type: AWS::CloudFormation::Stack
        Properties:
            TemplateURL: https://s3.amazonaws.com/aws-ecs-jenkins/services/jenkins-service/service.yaml
            Parameters:
                VPC: !GetAtt VPC.Outputs.VPC
                Cluster: !GetAtt ECS.Outputs.Cluster
                Listener: !GetAtt ALB.Outputs.Listener