fargate-service.json

{
    "Description": "Container Fargate Service (fdp-1p5s1037g)",
	"Metadata" : {
	  "Source":"https://github.com/awslabs/aws-cloudformation-templates/blob/master/aws/services/ECS/FargateLaunchType/services/private-subnet-public-service.yml"
	},
    "AWSTemplateFormatVersion": "2010-09-09",
    "Parameters": {
        "ECRImageURI": {
            "Type": "String",
            "Description" : "URI for the container from Amazon Elastic Container Registry."
        },
        "TaskDefinitionName": {
            "Type": "String",
            "Description" : "This will set the Container, Task Definition, and Service name in Fargate."
        },
        "ContainerPort": {
            "Type":"Number",
            "Description" : "port number exposed from the container image.",
            "Default":80
        },  		
        "ContainerSize": {
            "Type":"String",
            "Description" : "Size of container for Fargate task.",
            "Default":"Small",
            "AllowedValues": ["Small","Medium","Large"]
        }
    },    
	"Mappings" : {
        "MapContainerSize" : {
            "Small" : {
                "cpu" : "512" ,
                "mem" : "1024"
            },
            "Medium" : {
                "cpu" : "1024",
                "mem" : "2048"
            },
            "Large" : {
                "cpu" : "4096",
                "mem" : "8192"
            }
        }
    },
    "Resources": {
      "TaskLogGroup": {
          "Type" : "AWS::Logs::LogGroup",
          "Properties" : {
              "LogGroupName" : {"Fn::Sub":"/ecs/${TaskDefinitionName}"},
              "RetentionInDays" : 30
            }
        },    
        "taskdefinition": {
            "Type": "AWS::ECS::TaskDefinition",
            "Properties" : {
                "ExecutionRoleArn": {"Fn::ImportValue": "ECSTaskExecutionRole"},
                "RequiresCompatibilities": [
                  "FARGATE"
                ],
                "Memory":  { "Fn::FindInMap" : [ "MapContainerSize", { "Ref" : "ContainerSize" }, "mem"]},
                "Family": {"Ref":"TaskDefinitionName"},
                "NetworkMode": "awsvpc",
                "Cpu": { "Fn::FindInMap" : [ "MapContainerSize", { "Ref" : "ContainerSize" }, "cpu"]},
                "ContainerDefinitions" : [
                    {
                      "PortMappings": [
                        { "ContainerPort": {"Ref": "ContainerPort"} }
                      ],
                      "LogConfiguration": {
                        "LogDriver": "awslogs",
                        "Options": {
                          "awslogs-group": {"Ref":"TaskLogGroup"},
						  "awslogs-region": {"Ref":"AWS::Region"},
                          "awslogs-stream-prefix": "ecs"
                        }
                      },
                      "Environment": [
                            {
                                "Name": "AWS_REGION",
                                "Value": {"Ref":"AWS::Region"}
                            }
                      ],
                      "Image": {"Ref":"ECRImageURI"},
                      "Name": {"Ref":"TaskDefinitionName"}
                    }
                ]
            }
        },      
	    "ecsservice" : {
		  "Type" : "AWS::ECS::Service",
		  "DependsOn": ["PublicLoadBalancerListener"],
		  "Properties" : {			
			"TaskDefinition" : { "Ref" : "taskdefinition" },
			"DesiredCount" : "1",
			"LoadBalancers" : [{
			  "TargetGroupArn" : { "Ref" : "TargetGroup" },
			  "ContainerPort" : { "Ref" : "ContainerPort" },
			  "ContainerName" : {"Ref":"TaskDefinitionName"}
			}],
			"Cluster" : { "Fn::ImportValue" : "FargateClusterName" },
			"LaunchType": "FARGATE",
			"ServiceName": {"Ref":"TaskDefinitionName"},
			"NetworkConfiguration":{
				"AwsvpcConfiguration" : {
				  "AssignPublicIp": "DISABLED",
				  "SecurityGroups":[
					 {"Fn::ImportValue": "ECSFargateContainerSecurityGroup" }
				   ],
				  "Subnets": [
					{ "Fn::ImportValue": "ECSPrivateSubnetOne"},
					{ "Fn::ImportValue": "ECSPrivateSubnetTwo"}
					]
			}}
			
		  }
		},
		 "TargetGroup" : {
		   "Type" : "AWS::ElasticLoadBalancingV2::TargetGroup",
		   "Properties" : {
		     "HealthCheckIntervalSeconds" : 30,
		     "HealthCheckPath" : "/",
		     "HealthCheckProtocol" : "HTTP",
		     "HealthCheckTimeoutSeconds" : 5,
		     "HealthyThresholdCount" : 2,
		     "TargetType" : "ip",
		     "Name" : { "Ref": "TaskDefinitionName" },
		     "Port" : { "Ref": "ContainerPort"},
		     "Protocol" : "HTTP",
		     "UnhealthyThresholdCount" : 2,
		     "VpcId" : { "Fn::ImportValue" : "FargateClusterVPCId" }
		  }
		},
		
		"PublicLoadBalancerListener" : {
			"Type" : "AWS::ElasticLoadBalancingV2::Listener",			
			"Properties" : {
				"DefaultActions" : [
					{ "TargetGroupArn" : {"Ref":"TargetGroup"} ,
					"Type" : "forward" }
					],
				"LoadBalancerArn" : { "Fn::ImportValue" :"ECSPublicLoadBalancer"},
				"Port" : {"Ref": "ContainerPort"},
				"Protocol" : "HTTP"
			}
		}		
    },
	"Outputs": {
        "FargateService":{"Value": { "Ref":"ecsservice" } }
    }
}