Parameters:
  ProjectName:
    Type: String
    Description: Project name to link stacks
    Default: app-mesh-multi-cell-multi-account 

Resources:

  ECSCluster:
    Type: AWS::ECS::Cluster
    Properties:
      ClusterName: Domain1Account1ECSCluster
    

  ECSServiceDiscoveryNamespace:
    Type: AWS::ServiceDiscovery::PrivateDnsNamespace
    Properties:
      Name: "internal-Domain1.com"
      Vpc: 
        Fn::ImportValue: !Sub "${ProjectName}:VPC"      


  SecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupName: "SG-app-mesh-multi-cell-multi-account"
      GroupDescription: "Security group for the instances"
      VpcId:
        Fn::ImportValue: !Sub "${ProjectName}:VPC"
      SecurityGroupIngress:
        - CidrIp: "0.0.0.0/0"
          IpProtocol: -1

  LogGroup:
    Type: AWS::Logs::LogGroup
    Properties:
      LogGroupName: "Log-Group-app-mesh-multi-cell-multi-account"
      RetentionInDays: 1
      
  TaskIamRole:
    Type: AWS::IAM::Role
    Properties:
      RoleName: "TaskIamRole-app-mesh-multi-cell-multi-account"
      Path: /
      AssumeRolePolicyDocument: |
        {
          "Statement": [{
            "Effect": "Allow",
            "Principal": { "Service": [ "ecs-tasks.amazonaws.com" ]},
            "Action": [ "sts:AssumeRole" ]
          }]
        }
      Policies:
        - PolicyName: ecs-service
          PolicyDocument:
            Statement:
              - Effect: Allow
                Action:
                  - 'elasticloadbalancing:DeregisterInstancesFromLoadBalancer'
                  - 'elasticloadbalancing:DeregisterTargets'
                  - 'elasticloadbalancing:Describe*'
                  - 'elasticloadbalancing:RegisterInstancesWithLoadBalancer'
                  - 'elasticloadbalancing:RegisterTargets'
                  - 'ec2:Describe*'
                  - 'ec2:AuthorizeSecurityGroupIngress'
                Resource: '*'
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/CloudWatchFullAccess
        - arn:aws:iam::aws:policy/AWSXRayDaemonWriteAccess
        - arn:aws:iam::aws:policy/AWSAppMeshEnvoyAccess
        - arn:aws:iam::aws:policy/ElasticLoadBalancingFullAccess

  TaskExecutionIamRole:
    Type: AWS::IAM::Role
    Properties:
      RoleName: "TaskExecutionIamRole-app-mesh-multi-cell-multi-account"    
      Path: /
      AssumeRolePolicyDocument: |
        {
          "Statement": [{
            "Effect": "Allow",
            "Principal": { "Service": [ "ecs-tasks.amazonaws.com" ]},
            "Action": [ "sts:AssumeRole" ]
          }]
        }
      Policies:
        - PolicyName: ecs-service
          PolicyDocument:
            Statement:
              - Effect: Allow
                Action:
                  - 'elasticloadbalancing:DeregisterInstancesFromLoadBalancer'
                  - 'elasticloadbalancing:DeregisterTargets'
                  - 'elasticloadbalancing:Describe*'
                  - 'elasticloadbalancing:RegisterInstancesWithLoadBalancer'
                  - 'elasticloadbalancing:RegisterTargets'
                  - 'ec2:Describe*'
                  - 'ec2:AuthorizeSecurityGroupIngress'
                Resource: '*'
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AmazonEC2ContainerRegistryReadOnly
        - arn:aws:iam::aws:policy/CloudWatchLogsFullAccess
        - arn:aws:iam::aws:policy/ElasticLoadBalancingFullAccess

Outputs:
    
  TaskIamRoleOutput:
    Description: ARN for TaskIamRole
    Value: !GetAtt TaskIamRole.Arn
    Export:
      Name: !Sub "${ProjectName}:TaskIamRole"       
      
  TaskExecutionIamRoleOutput:
    Description: ARN for TaskExecutionIamRole
    Value: !GetAtt TaskExecutionIamRole.Arn
    Export:
      Name: !Sub "${ProjectName}:TaskExecutionIamRole"

  SecurityGroupIdOutput:
    Description: Id for SecurityGroup
    Value: !GetAtt SecurityGroup.GroupId
    Export:
      Name: !Sub "${ProjectName}:SecurityGroupId"
      
  ECSCluster:
    Description: A reference to the ECS cluster
    Value: !Ref ECSCluster
    Export:
      Name: !Sub "${ProjectName}:ECSCluster"

  ECSServiceDiscoveryNamespace:
    Description: A SDS namespace that will be used by all services in this cluster
    Value: !Ref ECSServiceDiscoveryNamespace
    Export:
      Name: !Sub "${ProjectName}:ECSServiceDiscoveryNamespace"