Memory: 512 Cpu: 256 ContainerDefinitions: - Name: app Image: ... - Name: mackerel-container-agent Image: mackerel/mackerel-container-agent:latest Memory: 128 Environment: - Name: MACKEREL_CONTAINER_PLATFORM Value: ecs - Name: MACKEREL_APIKEY Value: <YOUR_MACKEREL_APIKEY> Essential: false container-agent の設定 (ECS) 元々のタスク定義 サイドカーを追加