vpc-bastion-fargate-rds-elasticache.cfn.yml

---
AWSTemplateFormatVersion: 2010-09-09


Description: SASKV5 VPC + Bastion + Fargate + Database + ElastiCache


Parameters:

  TemplateBucket:
    Type: String
    Default: awslabs-startup-kit-templates-deploy-v5
    Description: The template bucket for the CloudFormation templates

  # vpc.cfn.yml parameters
  AvailabilityZone1:
    Description: The first availability zone in the region
    Type: AWS::EC2::AvailabilityZone::Name
    ConstraintDescription: Must be a valid availability zone

  AvailabilityZone2:
    Description: The second availability zone in the region
    Type: AWS::EC2::AvailabilityZone::Name
    ConstraintDescription: Must be a valid availability zone

  SSHFrom:
    Description: Limit SSH access to bastion hosts to a CIDR IP block
    Type: String
    MinLength: 9
    MaxLength: 18
    Default: 0.0.0.0/0

  ELBIngressPort:
    Description: The ELB ingress port used by security groups
    Type: Number
    MinValue: 0
    MaxValue: 65535
    ConstraintDescription: TCP ports must be between 0 - 65535
    Default: 80

  AppIngressPort:
    Description: The application ingress port used by security groups
    Type: Number
    MinValue: 0
    MaxValue: 65535
    ConstraintDescription: TCP ports must be between 0 - 65535
    Default: 80

  # bastion.cfn.yml parameters
  KeyName:
    Description: EC2 key pair name for bastion host SSH access
    Type: AWS::EC2::KeyPair::KeyName
    AllowedPattern : ".+"

  LogRetentionInDays:
    Description: Number of days you would like your CloudWatch Logs to be retained
    Type: Number
    Default: 90

  # For more information on the google-authenticator PAM module, see: https://github.com/google/google-authenticator-libpam
  MFA:
    Description: Set to true to install MFA using the google-authenticator PAM module on your bastion host
    Type: String
    ConstraintDescription: Value must be true or false
    Default: false
    AllowedValues:
      - true
      - false

  # fargate.cfn.yml parameters
  HostedZoneName:
    Type: String
    Description: The optional Amazon Route 53 Hosted Zone Name for the optional load balancer alias record - do not include a period at the end
    Default: ""
    AllowedPattern: "(^$|^((?!-)[A-Za-z0-9-]{1,63}(?<!-)\\.)+[A-Za-z]{2,6}$)" # Allow for a blank or a domain name
    ConstraintDescription: Please enter a valid Route 53 Hosted Zone Name

  LoadBalancerDomainName:
    Type: String
    Description: Optional domain name to create an Amazon Route 53 alias record for the load balancer
    Default: ""
    AllowedPattern: "(^$|^((?!-)[A-Za-z0-9-]{1,63}(?<!-)\\.)+[A-Za-z]{2,6}$)" # Allow for a blank or a domain name
    ConstraintDescription: Please enter a valid domain name

  LoadBalancerAlarmEvaluationPeriods:
    Description: The number of periods over which data is compared to the threshold
    Type: Number
    Default: 2
    MinValue: 2
    ConstraintDescription: Must be at least one

  LoadBalancerAlarmEvaluationPeriodSeconds:
    Description: The time over which the specified statistic is applied. Specify time in seconds, in multiples of 60
    Type: Number
    Default: 300
    MinValue: 60
    ConstraintDescription: Must be at least 60 seconds

  LoadBalancerLatencySeconds:
    Description: LoadBalancer latency threshold, in seconds
    Type: Number
    Default: 2
    MinValue: 1
    ConstraintDescription: Must be atleast one

  EnableLBAlarm:
    Description: Set to true to enable load balancer latency alarm
    Type: String
    ConstraintDescription: Value must be true or false
    Default: false
    AllowedValues:
      - true
      - false

  AppProtocol:
    Type: String
    Description: The application server protocol
    Default: HTTP
    AllowedValues:
      - HTTP
      - HTTPS
    ConstraintDescription: Specify either HTTTP or HTTPS

  SSLCertificateArn:
    Type: String
    Description: The optional SSL/TLS certificate ARN
    MinLength: 0
    MaxLength: 2048
    Default: ""

  HealthCheckPath:
    Type: String
    Description: The path for the Application Load Balancer health check
    Default: /
    MinLength: 1
    MaxLength: 255
    ConstraintDescription: Value must be between 1 and 255 characters

  GitHubSourceRepo:
    Type: String
    Description: GitHub source repository - must contain a Dockerfile in the base

  GitHubBranch:
    Type: String
    Default: master
    Description: GitHub repository branch to trigger builds

  GitHubToken:
    Type: String
    NoEcho: true
    Description: "GitHub API token - see: https://github.com/blog/1509-personal-api-tokens"

  GitHubUser:
    Type: String
    Description: GitHub username

  CodeBuildDockerImage:
    Type: String
    Default: aws/codebuild/docker:17.09.0

  SeedDockerImage:
    Type: String
    Default: registry.hub.docker.com/library/nginx:1.13
    Description: The initial image, before the GitHub repo above is deployed. Existing application images in ECR should override this parameter

  DefaultContainerCpu:
    Type: Number
    Description: "Amount of CPU for the container - options available: https://aws.amazon.com/fargate/pricing/"
    Default: 256
    MinValue: 256
    MaxValue: 4096
    ConstraintDescription: "Value must be between 256 and 4096 - see: https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task_definition_parameters.html#task_size"

  DefaultContainerMemory:
    Type: Number
    Description: "Amount of memory for the container - options available: https://aws.amazon.com/fargate/pricing/"
    Default: 512
    MinValue: 512
    MaxValue: 30720
    ConstraintDescription: "Value must be between 512 and 30720 - see: https://aws.amazon.com/fargate/pricing/"

  # Scaling params
  DefaultServiceScaleEvaluationPeriods:
    Description: The number of periods over which data is compared to the specified threshold
    Type: Number
    Default: 2
    MinValue: 2

  DefaultServiceCpuScaleOutThreshold:
    Type: Number
    Description: Average CPU % value to trigger auto scaling out
    Default: 50
    MinValue: 0
    MaxValue: 100
    ConstraintDescription: Value must be between 0 and 100

  DefaultServiceCpuScaleInThreshold:
    Type: Number
    Description: Average CPU % value to trigger auto scaling down
    Default: 25
    MinValue: 0
    MaxValue: 100
    ConstraintDescription: Value must be between 0 and 100

  DefaultTaskMinContainerCount:
    Type: Number
    Description: Minimum number of containers to run for the service
    Default: 1
    MinValue: 1
    ConstraintDescription: Value must be at least one

  DefaultTaskMaxContainerCount:
    Type: Number
    Description: Maximum number of containers to run for the service when auto scaling out
    Default: 2
    MinValue: 1
    ConstraintDescription: Value must be at least one

  ContainerLogRetentionInDays:
    Type: Number
    Default: 7
    Description: Number of days to retain container logs

  MaxTaggedContainerImagesToRetain:
    Type: Number
    Description: The number of tagged container images to retain before expiring
    MinValue: 1
    MaxValue: 100
    ConstraintDescription: Value must be between 1 and 100
    Default: 20

  DaysToRetainUntaggedContainerImages:
    Type: Number
    Description: The number days to retain untagged container images before expiring
    MinValue: 1
    MaxValue: 100
    ConstraintDescription: Value must be between 1 and 100
    Default: 7

  EnvironmentName:
    Type: String
    Description: Environment name - dev or prod
    Default: dev
    AllowedValues:
      - dev
      - prod
    ConstraintDescription: Specify either dev or prod

  # aurora.cfn.yml and/or db.cfn.yml parameters
  DatabaseUser:
    Default: startupadmin
    Type: String
    Description: Database admin account name
    MinLength: 5
    MaxLength: 16
    AllowedPattern: "[a-zA-Z][a-zA-Z0-9]*"
    ConstraintDescription: Name must begin with a letter and contain only alphanumeric characters

  DatabasePassword:
    NoEcho: true
    Type: String
    Description: Database admin account password
    MinLength: 6
    MaxLength: 41
    AllowedPattern: "[a-zA-Z0-9]*"
    ConstraintDescription: Password must contain only alphanumeric characters

  DatabaseName:
    Default: StartupDB
    Type: String
    Description: Database name
    MinLength: 1
    MaxLength: 30
    AllowedPattern: "[a-zA-Z][a-zA-Z0-9]*"
    ConstraintDescription: Name must begin with a letter and contain only alphanumeric characters

  DatabaseEngine:
    Default: aurora
    Type: String
    Description: Database engines - Aurora MySQL, Aurora PostgreSQL, PostgreSQL, MariaDB and MySQL
    ConstraintDescription: Choose an engine from the drop down
    AllowedValues:
      - aurora
      - aurora-postgresql
      - postgres
      - mariadb
      - mysql

  EncryptionAtRest:
    Default: false
    Type: String
    Description: The optional flag for encryption at rest (db.t2.small and above)
    ConstraintDescription: Only true or false are allowed
    AllowedValues:
      - true
      - false

  DatabaseSize:
    Default: 5
    Type: String
    Description: Database storage size in gigabytes (GB) - Not applicable for Aurora
    MinLength: 1
    AllowedPattern: "[5-9]|[1-9][0-9]+"
    ConstraintDescription: Enter a size of at least 5 GB

  DatabaseInstanceClass:
    Default: db.t2.small
    Type: String
    Description: "Database instance class, e.g. db.t2.micro (free tier) - Engine support: https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.DBInstanceClass.html"
    ConstraintDescription: DB instance class not supported
    AllowedValues:
      - db.t2.micro
      - db.t2.small
      - db.t2.medium
      - db.t2.large
      - db.t2.xlarge
      - db.t2.2xlarge
      - db.m4.large
      - db.m4.xlarge
      - db.m4.2xlarge
      - db.m4.4xlarge
      - db.m4.10xlarge
      - db.m4.16xlarge
      - db.r4.large
      - db.r4.xlarge
      - db.r4.2xlarge
      - db.r4.4xlarge
      - db.r4.8xlarge
      - db.r4.16xlarge

  DatabaseEnableAlarms:
    Default: false
    Type: String
    Description: Set to true to enable (additional charges - https://aws.amazon.com/cloudwatch/pricing/ - aurora, postgres, mariadb, mysql)
    ConstraintDescription: Only true or false are allowed
    AllowedValues:
      - true
      - false

  DatabaseEnhancedMonitoring:
    Default: false
    Type: String
    Description: The optional flag for enhanced monitoring (additional charges apply - https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_Monitoring.OS.htm - aurora, postgres, mariadb, mysql)
    ConstraintDescription: Only true or false are allowed
    AllowedValues:
      - true
      - false

  DatabaseAlarmMaxCpuPercent:
    Description: Database CPU % max for alarm (aurora, postgres, mariadb, mysql)
    Type: Number
    Default: 80
    MinValue: 1
    MaxValue: 99
    ConstraintDescription: Must be a percentage between 1-99%

  DatabaseAlarmReadLatencyMaxSeconds:
    Description: Read latency max in seconds for alarm (aurora, postgres, mariadb, mysql)
    Type: Number
    Default: 1
    MinValue: 1
    ConstraintDescription: Must at least one

  DatabaseAlarmWriteLatencyMaxSeconds:
    Description: Write latency max in seconds for alarm (aurora, postgres, mariadb, mysql)
    Type: Number
    Default: 1
    MinValue: 1
    ConstraintDescription: Must at least one

  DatabaseAlarmEvaluationPeriods:
    Description: The number of periods over which data is compared to the specified threshold (aurora, postgres, mariadb, mysql)
    Type: Number
    Default: 2
    MinValue: 2
    ConstraintDescription: Must be at least one

  DatabaseAlarmEvaluationPeriodSeconds:
    Description: The time over which the specified statistic is applied. Specify time in seconds, in multiples of 60. Enhanced monitoring must be enabled if less than 500 second (aurora, postgres, mariadb, mysql)
    Type: Number
    Default: 300
    MinValue: 60
    ConstraintDescription: Must be at least 60 seconds

  # Default is 500 MB
  DatabaseAlarmMinFreeSpaceInBytes:
    Default: 524288000
    Type: Number
    Description: Number of min free space bytes for alarm (postgres, mariadb, mysql)
    MinValue: 1
    ConstraintDescription: A value of one byte or more

  # Default is 200 MB
  DatabaseAlarmSwapUsageInBytes:
    Default: 209715200
    Type: Number
    Description: Number of swap usage bytes for alarm (postgres, mariadb, mysql)
    MinValue: 1
    ConstraintDescription: A value of one byte or more

  # elasticache.cfn.yml parameters
  ClusterName:
    Description: Custom name of the ElastiCache cluster. Auto generated if you don't supply your own.
    Type: String
    AllowedPattern: "^[a-zA-Z][-a-zA-Z0-9]*$"

  CacheNodeType:
    Description: Cache node instance class, e.g. cache.t2.micro(free tier). See https://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/CacheNodes.SelectSize.html
    Type: String
    Default: cache.t2.micro
    ConstraintDescription: Node instance class not supported
    AllowedValues:
      - cache.t2.micro
      - cache.t2.small
      - cache.t2.medium
      - cache.m4.large
      - cache.m4.xlarge
      - cache.m4.2xlarge
      - cache.m4.4xlarge
      - cache.m4.10xlarge
      - cache.r4.large
      - cache.r4.xlarge
      - cache.r4.2xlarge
      - cache.r4.4xlarge
      - cache.r4.8xlarge
      - cache.r4.16xlarge

  CacheEngine:
    Description: The underlying cache engine, either Redis or Memcached
    Type: String
    Default: redis
    ConstraintDescription: Node instance class not supported
    AllowedValues:
      - redis
      - memcached

  CacheNodeCount:
    Description: Number of nodes in the cluster. Only used with memcached engine, for redis this value will be set to 1.
    Type: Number
    MinValue: 1
    MaxValue: 15
    ConstraintDescription: Node count must be between 1 and 15
    Default: 1
    
  AutoMinorVersionUpgrade:
    Description: Whether or not minor version upgrades to the cache engine should be applied automatically during the maintenance window.
    Type: String
    Default: true
    AllowedValues:
      - true
      - false

Metadata:
  AWS::CloudFormation::Interface:
    ParameterGroups:
      - Label:
          default: Environment
        Parameters:
          - EnvironmentName
      - Label:
          default: Region Availability Zones
        Parameters:
          - AvailabilityZone1
          - AvailabilityZone2
      - Label:
          default: Bastion
        Parameters:
          - KeyName
          - LogRetentionInDays
          - MFA
          - SSHFrom
      - Label:
          default: Database
        Parameters:
          - DatabaseEngine
          - DatabaseInstanceClass
          - DatabaseUser
          - DatabasePassword
          - DatabaseName
          - DatabaseSize
          - EncryptionAtRest
          - DatabaseEnableAlarms
          - DatabaseEnhancedMonitoring
          - DatabaseAlarmMaxCpuPercent
          - DatabaseAlarmReadLatencyMaxSeconds
          - DatabaseAlarmWriteLatencyMaxSeconds
          - DatabaseAlarmEvaluationPeriods
          - DatabaseAlarmEvaluationPeriodSeconds
          - DatabaseAlarmMinFreeSpaceInBytes
          - DatabaseAlarmSwapUsageInBytes
      - Label:
          default: ElastiCache
        Parameters:
          - CacheEngine
          - ClusterName
          - CacheNodeType
          - CacheNodeCount
          - AutoMinorVersionUpgrade
      - Label:
          default: Application Global
        Parameters:
          - AppIngressPort
          - AppProtocol
      - Label:
          default: Initial Service
        Parameters:
          - HealthCheckPath
          - DefaultContainerCpu
          - DefaultContainerMemory
          - DefaultServiceScaleEvaluationPeriods
          - DefaultServiceCpuScaleOutThreshold
          - DefaultServiceCpuScaleInThreshold
          - DefaultTaskMinContainerCount
          - DefaultTaskMaxContainerCount
          - ContainerLogRetentionInDays
      - Label:
          default: Load Balancer
        Parameters:
          - ELBIngressPort
          - HostedZoneName
          - LoadBalancerDomainName
          - SSLCertificateArn
          - EnableLBAlarm
          - LoadBalancerLatencySeconds
          - LoadBalancerAlarmEvaluationPeriodSeconds
          - LoadBalancerAlarmEvaluationPeriods
      - Label:
          default: Initial Service CI/CD
        Parameters:
          - CodeBuildDockerImage
          - SeedDockerImage
          - GitHubUser
          - GitHubToken
          - GitHubSourceRepo
          - GitHubBranch
      - Label:
          default: Elastic Container Registry
        Parameters:
          - MaxTaggedContainerImagesToRetain
          - DaysToRetainUntaggedContainerImages
    ParameterLabels:
      AvailabilityZone1:
        default: Availability Zone 1
      AvailabilityZone2:
        default: Availability Zone 2
      ELBIngressPort:
        default: Port
      AppIngressPort:
        default: Port
      AppProtocol:
        default: Protocol
      KeyName:
        default: EC2 Key Pair
      LogRetentionInDays:
        default: Log Retention
      MFA:
        default: Multi-Factor
      SSHFrom:
        default: SSH Whitelist
      TemplateBucket:
        default: CloudFormation Bucket
      EnvironmentName:
        default: Environment
      MaxTaggedContainerImagesToRetain:
        default: Tagged Images Max
      DaysToRetainUntaggedContainerImages:
        default: Untagged Images
      GitHubSourceRepo:
        default: GitHub Repo
      GitHubBranch:
        default: GitHub Branch
      GitHubUser:
        default: GitHub User
      GitHubToken:
        default: GitHub Token
      HealthCheckPath:
        default: Health Check Path
      DefaultContainerCpu:
        default: CPU
      DefaultContainerMemory:
        default: Memory
      DefaultServiceScaleEvaluationPeriods:
        default: Scale Periods
      DefaultServiceCpuScaleOutThreshold:
        default: Scale Out CPU
      DefaultServiceCpuScaleInThreshold:
        default: Scale In CPU
      DefaultTaskMinContainerCount:
        default: Min Containers
      DefaultTaskMaxContainerCount:
        default: Max Containers
      ContainerLogRetentionInDays:
        default: Log Retention
      HostedZoneName:
        default: Hosted Zone
      LoadBalancerDomainName:
        default: Domain
      SSLCertificateArn:
        default: SSL Certificate
      SeedDockerImage:
        default: Initial Image
      CodeBuildDockerImage:
        default: CodeBuild Image
      DatabaseUser:
        default: User
      DatabasePassword:
        default: Password
      DatabaseName:
        default: Name
      DatabaseSize:
        default: Size
      DatabaseEngine:
        default: Engine
      EncryptionAtRest:
        default: Encryption at Rest
      DatabaseInstanceClass:
        default: Instance Type
      DatabaseAlarmMaxCpuPercent:
        default: Alarm Max CPU%
      DatabaseAlarmReadLatencyMaxSeconds:
        default: Alarm Max Read Latency
      DatabaseAlarmWriteLatencyMaxSeconds:
        default: Alarm Max Write Latency
      DatabaseAlarmEvaluationPeriods:
        default: Alarm Period(s)
      DatabaseAlarmEvaluationPeriodSeconds:
        default: Alarm Period Seconds
      DatabaseEnhancedMonitoring:
        default: Enhanced Monitoring
      DatabaseAlarmMinFreeSpaceInBytes:
        default: Min Free Space
      DatabaseAlarmSwapUsageInBytes:
        default: Max Swap Use
      DatabaseEnableAlarms:
        default: Enable Alarms
      EnableLBAlarm:
        default: Enable LB Alarm
      LoadBalancerAlarmEvaluationPeriods:
        default: LB Alarm Periods
      LoadBalancerAlarmEvaluationPeriodSeconds:
        default: LB Alarm Seconds
      LoadBalancerLatencySeconds:
        default: LB Latency Threshold

Conditions:

   IsProd: !Equals [ !Ref EnvironmentName, prod ]

   IsAurora: !Or [ !Equals [ !Ref DatabaseEngine, aurora ], !Equals [ !Ref DatabaseEngine, aurora-postgresql ] ]

   IsNotAurora: !Not [ Condition: IsAurora ]

Resources:

  VpcStack:
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: !Sub https://s3.amazonaws.com/${TemplateBucket}/templates/vpc.cfn.yml
      Parameters:
        AvailabilityZone1: !Ref AvailabilityZone1
        AvailabilityZone2: !Ref AvailabilityZone2
        SSHFrom: !Ref SSHFrom
        ELBIngressPort: !Ref ELBIngressPort
        AppIngressPort: !Ref AppIngressPort
        SingleNatGateway: !If [ IsProd, false, true ]

  BastionStack:
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: !Sub https://s3.amazonaws.com/${TemplateBucket}/templates/bastion.cfn.yml
      Parameters:
        NetworkStackName: !GetAtt VpcStack.Outputs.Name
        KeyName: !Ref KeyName
        LogRetentionInDays: !Ref LogRetentionInDays
        MFA: !Ref MFA
    DependsOn: VpcStack

  AuroraStack:
    Type: AWS::CloudFormation::Stack
    Condition: IsAurora
    Properties:
      TemplateURL: !Sub https://s3.amazonaws.com/${TemplateBucket}/templates/aurora.cfn.yml
      Parameters:
        NetworkStackName: !GetAtt VpcStack.Outputs.Name
        EnvironmentName: !Ref EnvironmentName
        DatabaseEngine: !Ref DatabaseEngine
        DatabaseInstanceClass: !Ref DatabaseInstanceClass
        DatabaseUser: !Ref DatabaseUser
        DatabasePassword: !Ref DatabasePassword
        DatabaseName: !Ref DatabaseName
        EncryptionAtRest: !Ref EncryptionAtRest
        EnableAlarms: !Ref DatabaseEnableAlarms
        EnhancedMonitoring: !Ref DatabaseEnhancedMonitoring
        DatabaseAlarmMaxCpuPercent: !Ref DatabaseAlarmMaxCpuPercent
        DatabaseAlarmReadLatencyMaxSeconds: !Ref DatabaseAlarmReadLatencyMaxSeconds
        DatabaseAlarmWriteLatencyMaxSeconds: !Ref DatabaseAlarmWriteLatencyMaxSeconds
        DatabaseAlarmEvaluationPeriods: !Ref DatabaseAlarmEvaluationPeriods
        DatabaseAlarmEvaluationPeriodSeconds: !Ref DatabaseAlarmEvaluationPeriodSeconds
    DependsOn: VpcStack

  RdsStack:
    Type: AWS::CloudFormation::Stack
    Condition: IsNotAurora
    Properties:
      TemplateURL: !Sub https://s3.amazonaws.com/${TemplateBucket}/templates/db.cfn.yml
      Parameters:
        NetworkStackName: !GetAtt VpcStack.Outputs.Name
        EnvironmentName: !Ref EnvironmentName
        DatabaseEngine: !Ref DatabaseEngine
        DatabaseInstanceClass: !Ref DatabaseInstanceClass
        DatabaseUser: !Ref DatabaseUser
        DatabasePassword: !Ref DatabasePassword
        DatabaseName: !Ref DatabaseName
        EncryptionAtRest: !Ref EncryptionAtRest
        DatabaseSize: !Ref DatabaseSize
        EnableAlarms: !Ref DatabaseEnableAlarms
        EnhancedMonitoring: !Ref DatabaseEnhancedMonitoring
        DatabaseAlarmMaxCpuPercent: !Ref DatabaseAlarmMaxCpuPercent
        DatabaseAlarmReadLatencyMaxSeconds: !Ref DatabaseAlarmReadLatencyMaxSeconds
        DatabaseAlarmWriteLatencyMaxSeconds: !Ref DatabaseAlarmWriteLatencyMaxSeconds
        DatabaseAlarmEvaluationPeriods: !Ref DatabaseAlarmEvaluationPeriods
        DatabaseAlarmEvaluationPeriodSeconds: !Ref DatabaseAlarmEvaluationPeriodSeconds
        DatabaseAlarmMinFreeSpaceInBytes: !Ref DatabaseAlarmMinFreeSpaceInBytes
        DatabaseAlarmSwapUsageInBytes: !Ref DatabaseAlarmSwapUsageInBytes
    DependsOn: VpcStack

  FargateStack:
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: !Sub https://s3.amazonaws.com/${TemplateBucket}/templates/fargate.cfn.yml
      Parameters:
        NetworkStackName: !GetAtt VpcStack.Outputs.Name
        DatabaseStackName:  !If [ IsAurora, !GetAtt AuroraStack.Outputs.Name, !GetAtt RdsStack.Outputs.Name ]
        HostedZoneName: !Ref HostedZoneName
        LoadBalancerDomainName: !Ref LoadBalancerDomainName
        AppProtocol: !Ref AppProtocol
        SSLCertificateArn: !Ref SSLCertificateArn
        HealthCheckPath: !Ref HealthCheckPath
        GitHubSourceRepo: !Ref GitHubSourceRepo
        GitHubBranch: !Ref GitHubBranch
        GitHubToken: !Ref GitHubToken
        GitHubUser: !Ref GitHubUser
        CodeBuildDockerImage: !Ref CodeBuildDockerImage
        SeedDockerImage: !Ref SeedDockerImage
        DefaultContainerCpu: !Ref DefaultContainerCpu
        DefaultContainerMemory: !Ref DefaultContainerMemory
        DefaultServiceScaleEvaluationPeriods: !Ref DefaultServiceScaleEvaluationPeriods
        DefaultServiceCpuScaleOutThreshold: !Ref DefaultServiceCpuScaleOutThreshold
        DefaultServiceCpuScaleInThreshold: !Ref DefaultServiceCpuScaleInThreshold
        DefaultTaskMinContainerCount: !Ref DefaultTaskMinContainerCount
        DefaultTaskMaxContainerCount: !Ref DefaultTaskMaxContainerCount
        ContainerLogRetentionInDays: !Ref ContainerLogRetentionInDays
        MaxTaggedContainerImagesToRetain: !Ref MaxTaggedContainerImagesToRetain
        DaysToRetainUntaggedContainerImages: !Ref DaysToRetainUntaggedContainerImages
        EnvironmentName: !Ref EnvironmentName
        EnableLBAlarm: !Ref EnableLBAlarm
        LoadBalancerLatencySeconds: !Ref LoadBalancerLatencySeconds
        LoadBalancerAlarmEvaluationPeriodSeconds: !Ref LoadBalancerAlarmEvaluationPeriodSeconds
        LoadBalancerAlarmEvaluationPeriods: !Ref LoadBalancerAlarmEvaluationPeriods

  ElastiCacheStack:
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: !Sub https://s3.amazonaws.com/${TemplateBucket}/templates/elasticache.cfn.yml
      Parameters:
        NetworkStackName: !GetAtt VpcStack.Outputs.Name
        ClusterName: !Ref ClusterName
        CacheNodeType: !Ref CacheNodeType
        CacheEngine:  !Ref CacheEngine
        CacheNodeCount:  !Ref CacheNodeCount
        AutoMinorVersionUpgrade:  !Ref AutoMinorVersionUpgrade
    DependsOn: VpcStack

Outputs:

  VpcStackName:
    Value: !GetAtt VpcStack.Outputs.Name
    Export:
      Name: !Sub ${AWS::StackName}-VpcStackName

  BastionStackName:
    Value: !GetAtt BastionStack.Outputs.Name
    Export:
      Name: !Sub ${AWS::StackName}-BastionStackName

  FargateStackName:
    Value: !GetAtt FargateStack.Outputs.Name
    Export:
      Name: !Sub ${AWS::StackName}-FargateStackName

  AuroraStackName:
    Value: !GetAtt AuroraStack.Outputs.Name
    Condition: IsAurora
    Export:
      Name: !Sub ${AWS::StackName}-DatabaseStackName

  RdsStackName:
    Value: !GetAtt RdsStack.Outputs.Name
    Condition: IsNotAurora
    Export:
      Name: !Sub ${AWS::StackName}-DatabaseStackName

  ElastiCacheStackName:
    Value: !GetAtt ElastiCacheStack.Outputs.ElastiCacheStackName
    Export:
      Name: !Sub ${AWS::StackName}-ElastiCacheStackName