ApplicationLoadBalancedEc2Service
An EC2 service running on an ECS cluster fronted by an application load balancer.
Import
import { ApplicationLoadBalancedEc2Service } from 'aws-cdk-lib/aws-ecs-patterns';Or use the module namespace:
import * as ecs_patterns from 'aws-cdk-lib/aws-ecs-patterns';
// ecs_patterns.ApplicationLoadBalancedEc2ServiceProperties
Configuration passed to the constructor as ApplicationLoadBalancedEc2ServiceProps.
cpuOptionalnumberThe number of cpu units used by the task. Valid values, which determines your range of valid values for the memory parameter: 256 (.25 vCPU) - Available memory values: 0.5GB, 1GB, 2GB 512 (.5 vCPU) - Available memory values: 1GB, 2GB, 3GB, 4GB 1024 (1 vCPU) - Available memory values: 2GB, 3GB, 4GB, 5GB, 6GB, 7GB, 8GB 2048 (2 vCPU) - Available memory values: Between 4GB and 16GB in 1GB increments 4096 (4 vCPU) - Available memory values: Between 8GB and 30GB in 1GB increments This default is set in the underlying FargateTaskDefinition construct.
Default: none
memoryLimitMiBOptionalnumberThe hard limit (in MiB) of memory to present to the container. If your container attempts to exceed the allocated memory, the container is terminated. At least one of memoryLimitMiB and memoryReservationMiB is required.
Default: - No memory limit.
memoryReservationMiBOptionalnumberThe soft limit (in MiB) of memory to reserve for the container. When system memory is under contention, Docker attempts to keep the container memory within the limit. If the container requires more memory, it can consume up to the value specified by the Memory property or all of the available memory on the container instance—whichever comes first. At least one of memoryLimitMiB and memoryReservationMiB is required.
Default: - No memory reserved.
placementConstraintsOptionalPlacementConstraint[]The placement constraints to use for tasks in the service. For more information, see [Amazon ECS Task Placement Constraints](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-placement-constraints.html).
Default: - No constraints.
placementStrategiesOptionalPlacementStrategy[]The placement strategies to use for tasks in the service. For more information, see [Amazon ECS Task Placement Strategies](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-placement-strategies.html).
Default: - No strategies.
taskDefinitionOptionalEc2TaskDefinitionThe task definition to use for tasks in the service. TaskDefinition or TaskImageOptions must be specified, but not both.. [disable-awslint:ref-via-interface]
Default: - none
31 properties inherited from ApplicationLoadBalancedServiceBaseProps
capacityProviderStrategiesOptionalinherited from ApplicationLoadBalancedServiceBasePropsCapacityProviderStrategy[]A list of Capacity Provider strategies used to place a service.
Default: - undefined
certificateOptionalinherited from ApplicationLoadBalancedServiceBasePropsICertificateCertificate Manager certificate to associate with the load balancer. Setting this option will set the load balancer protocol to HTTPS.
Default: - No certificate associated with the load balancer, if using
the HTTP protocol. For HTTPS, a DNS-validated certificate will be
created for the load balancer's specified domain name if a domain name
and domain zone are specified.
circuitBreakerOptionalinherited from ApplicationLoadBalancedServiceBasePropsDeploymentCircuitBreakerWhether to enable the deployment circuit breaker. If this property is defined, circuit breaker will be implicitly enabled.
Default: - disabled
cloudMapOptionsOptionalinherited from ApplicationLoadBalancedServiceBasePropsCloudMapOptionsThe options for configuring an Amazon ECS service to use service discovery.
Default: - AWS Cloud Map service discovery is not enabled.
clusterOptionalinherited from ApplicationLoadBalancedServiceBasePropsIClusterThe name of the cluster that hosts the service. If a cluster is specified, the vpc construct should be omitted. Alternatively, you can omit both cluster and vpc.
Default: - create a new cluster; if both cluster and vpc are omitted, a new VPC will be created for you.
deploymentControllerOptionalinherited from ApplicationLoadBalancedServiceBasePropsDeploymentControllerSpecifies which deployment controller to use for the service. For more information, see [Amazon ECS Deployment Types](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/deployment-types.html)
Default: - Rolling update (ECS)
desiredCountOptionalinherited from ApplicationLoadBalancedServiceBasePropsnumberThe desired number of instantiations of the task definition to keep running on the service. The minimum value is 1
Default: - The default is 1 for all new services and uses the existing service's desired count
when updating an existing service.
domainNameOptionalinherited from ApplicationLoadBalancedServiceBasePropsstringThe domain name for the service, e.g. "api.example.com.".
Default: - No domain name.
domainZoneOptionalinherited from ApplicationLoadBalancedServiceBasePropsIHostedZoneThe Route53 hosted zone for the domain, e.g. "example.com.".
Default: - No Route53 hosted domain zone.
enableECSManagedTagsOptionalinherited from ApplicationLoadBalancedServiceBasePropsbooleanSpecifies whether to enable Amazon ECS managed tags for the tasks within the service. For more information, see [Tagging Your Amazon ECS Resources](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ecs-using-tags.html)
Default: false
enableExecuteCommandOptionalinherited from ApplicationLoadBalancedServiceBasePropsbooleanWhether ECS Exec should be enabled.
Default: - false
healthCheckGracePeriodOptionalinherited from ApplicationLoadBalancedServiceBasePropsDurationThe period of time, in seconds, that the Amazon ECS service scheduler ignores unhealthy Elastic Load Balancing target health checks after a task has first started.
Default: - defaults to 60 seconds if at least one load balancer is in-use and it is not already set
idleTimeoutOptionalinherited from ApplicationLoadBalancedServiceBasePropsDurationThe load balancer idle timeout, in seconds. Can be between 1 and 4000 seconds
Default: - CloudFormation sets idle timeout to 60 seconds
ipAddressTypeOptionalinherited from ApplicationLoadBalancedServiceBasePropsIpAddressTypeThe type of IP address to use.
Default: - IpAddressType.IPV4
listenerPortOptionalinherited from ApplicationLoadBalancedServiceBasePropsnumberListener port of the application load balancer that will serve traffic to the service.
Default: - The default listener port is determined from the protocol (port 80 for HTTP,
port 443 for HTTPS). A domain name and zone must be also be specified if using HTTPS.
loadBalancerOptionalinherited from ApplicationLoadBalancedServiceBasePropsIApplicationLoadBalancerThe application load balancer that will serve traffic to the service. The VPC attribute of a load balancer must be specified for it to be used to create a new service with this pattern. [disable-awslint:ref-via-interface]
Default: - a new load balancer will be created.
loadBalancerNameOptionalinherited from ApplicationLoadBalancedServiceBasePropsstringName of the load balancer.
Default: - Automatically generated name.
maxHealthyPercentOptionalinherited from ApplicationLoadBalancedServiceBasePropsnumberThe maximum number of tasks, specified as a percentage of the Amazon ECS service's DesiredCount value, that can run in a service during a deployment.
Default: - 100 if daemon, otherwise 200
minHealthyPercentOptionalinherited from ApplicationLoadBalancedServiceBasePropsnumberThe minimum number of tasks, specified as a percentage of the Amazon ECS service's DesiredCount value, that must continue to run and remain healthy during a deployment.
Default: - 0 if daemon, otherwise 50
openListenerOptionalinherited from ApplicationLoadBalancedServiceBasePropsbooleanDetermines whether or not the Security Group for the Load Balancer's Listener will be open to all traffic by default.
Default: true -- The security group allows ingress from all IP addresses.
propagateTagsOptionalinherited from ApplicationLoadBalancedServiceBasePropsPropagatedTagSourceSpecifies whether to propagate the tags from the task definition or the service to the tasks in the service. Tags can only be propagated to the tasks within the service during service creation.
Default: - none
protocolOptionalinherited from ApplicationLoadBalancedServiceBasePropsApplicationProtocolThe protocol for connections from clients to the load balancer. The load balancer port is determined from the protocol (port 80 for HTTP, port 443 for HTTPS). If HTTPS, either a certificate or domain name and domain zone must also be specified.
Default: HTTP. If a certificate is specified, the protocol will be
set by default to HTTPS.
protocolVersionOptionalinherited from ApplicationLoadBalancedServiceBasePropsApplicationProtocolVersionThe protocol version to use.
Default: ApplicationProtocolVersion.HTTP1
publicLoadBalancerOptionalinherited from ApplicationLoadBalancedServiceBasePropsbooleanDetermines whether the Load Balancer will be internet-facing.
Default: true
recordTypeOptionalinherited from ApplicationLoadBalancedServiceBasePropsApplicationLoadBalancedServiceRecordTypeSpecifies whether the Route53 record should be a CNAME, an A record using the Alias feature or no record at all. This is useful if you need to work with DNS systems that do not support alias records.
Default: ApplicationLoadBalancedServiceRecordType.ALIAS
redirectHTTPOptionalinherited from ApplicationLoadBalancedServiceBasePropsbooleanSpecifies whether the load balancer should redirect traffic on port 80 to the {@link listenerPort} to support HTTP->HTTPS redirects. This is only valid if the protocol of the ALB is HTTPS.
Default: false
serviceNameOptionalinherited from ApplicationLoadBalancedServiceBasePropsstringThe name of the service.
Default: - CloudFormation-generated name.
sslPolicyOptionalinherited from ApplicationLoadBalancedServiceBasePropsSslPolicyThe security policy that defines which ciphers and protocols are supported by the ALB Listener.
Default: - The recommended elastic load balancing security policy
targetProtocolOptionalinherited from ApplicationLoadBalancedServiceBasePropsApplicationProtocolThe protocol for connections from the load balancer to the ECS tasks. The default target port is determined from the protocol (port 80 for HTTP, port 443 for HTTPS).
Default: HTTP.
taskImageOptionsOptionalinherited from ApplicationLoadBalancedServiceBasePropsApplicationLoadBalancedTaskImageOptionsThe properties required to create a new task definition. TaskDefinition or TaskImageOptions must be specified, but not both.
Default: none
vpcOptionalinherited from ApplicationLoadBalancedServiceBasePropsIVpcThe VPC where the container instances will be launched or the elastic network interfaces (ENIs) will be deployed. If a vpc is specified, the cluster construct should be omitted. Alternatively, you can omit both vpc and cluster.
Default: - uses the VPC defined in the cluster or creates a new VPC.
Learn AWS the Practical Way
Our bi-weekly newsletter teaches hands-on AWS fundamentals. No certification fluff - just practical knowledge.
Subscribe to NewsletterQuick Facts
aws-ecs-patternsRelated Constructs
- ApplicationLoadBalancedFargateServiceL2
- ApplicationMultipleTargetGroupsEc2ServiceL2
- ApplicationMultipleTargetGroupsFargateServiceL2
- NetworkLoadBalancedEc2ServiceL2
- NetworkLoadBalancedFargateServiceL2
- NetworkMultipleTargetGroupsEc2ServiceL2
- NetworkMultipleTargetGroupsFargateServiceL2
- QueueProcessingEc2ServiceL2
- QueueProcessingFargateServiceL2
- ScheduledEc2TaskL2