task-definition.json

{
	"family": "firelens-example-cloudwatch",
	"taskRoleArn": "arn:aws:iam::XXXXXXXXXXXX:role/ecs_task_iam_role",
	"executionRoleArn": "arn:aws:iam::XXXXXXXXXXXX:role/ecs_task_execution_role",
	"containerDefinitions": [
		{
			"essential": true,
			"image": "906394416424.dkr.ecr.us-east-1.amazonaws.com/aws-for-fluent-bit:stable",
			"name": "log_router",
			"firelensConfiguration": {
				"type": "fluentbit"
			},
			"logConfiguration": {
				"logDriver": "awslogs",
				"options": {
					"awslogs-group": "firelens-container",
					"awslogs-region": "us-west-2",
					"awslogs-create-group": "true",
					"awslogs-stream-prefix": "firelens"
				}
			},
			"memoryReservation": 50
		},
		{
            "essential": true,
            "image": "public.ecr.aws/aws-observability/aws-otel-collector:latest",
            "name": "aws-otel-collector",
            "logConfiguration": {
                "logDriver": "awslogs",
                "options": {
                    "awslogs-group": "aws-otel-collector",
                    "awslogs-region": "us-west-1",
                    "awslogs-create-group": "true",
                    "awslogs-stream-prefix": "ecs-"
                }
            },
            "memoryReservation": 100,
            "command": [
                "--config=/etc/ecs/container-insights/otel-task-metrics-config.yaml"
            ]
        },
		{
			 "essential": true,
			 "image": "nginx",
			 "name": "app",
			 "logConfiguration": {
				"logDriver":"awsfirelens",
				"options": {
					"Name": "cloudwatch_logs",
					"region": "us-west-2",
					"log_key": "log",
					"log_group_name": "ecs/application",
					"auto_create_group": "true",
					"log_stream_prefix": "app-",
					"retry_limit": "2"
				}
			},
			"memoryReservation": 100
		}
	]
}