taskdef.json

{
    "networkMode": "bridge",
    "taskRoleArn": null,
    "containerDefinitions": [
        {
            "volumesFrom": [],
            "memory": 300,
            "extraHosts": [],
            "dnsServers": [],
            "disableNetworking": null,
            "dnsSearchDomains": [],
            "portMappings": [
                {
                    "hostPort": 80,
                    "containerPort": 80,
                    "protocol": "tcp"
                }
            ],
            "hostname": null,
            "essential": true,
            "entryPoint": [],
            "mountPoints": [],
            "name": "php-simple-app",
            "ulimits": [],
            "dockerSecurityOptions": [],
            "environment": [],
            "links": [],
            "workingDirectory": null,
            "readonlyRootFilesystem": null,
            "image": "REPOSITORY_URI:BUILD_NUMBER",
            "command": [],
            "user": null,
            "dockerLabels": {},
            "logConfiguration": null,
            "cpu": 10,
            "privileged": null,
            "memoryReservation": null
        }
    ],
    "volumes": [
        {
            "host": {
                "sourcePath": null
            },
            "name": "my-vol"
        }
    ],
    "family": "LizStandard2-PhpTaskDefinition-1EQMDXBXUOOB6",
    "placementConstraints": [
				{
        			"field": "instanceId",
        			"type": "spread"
   				 }
			]	
}