BaseService¶

class aws_cdk.aws_ecs.BaseService(scope, id, props, additional_props, task_definition)¶

Bases: aws_cdk.core.Resource

The base class for Ec2Service and FargateService services.

Constructs a new instance of the BaseService class.

Parameters

scope (Construct) –
id (str) –
props (BaseServiceProps) –
additional_props (Any) –
task_definition (TaskDefinition) –

Methods

apply_removal_policy(policy)¶

Apply the given removal policy to this resource.

The Removal Policy controls what happens to this resource when it stops being managed by CloudFormation, either because you’ve removed it from the CDK application or because you’ve made a change that requires the resource to be replaced.

The resource can be deleted (RemovalPolicy.DESTROY), or left in your AWS account for data recovery and cleanup later (RemovalPolicy.RETAIN).

Parameters

policy (RemovalPolicy) –

Return type

None

associate_cloud_map_service(*, service, container=None, container_port=None)¶

Associates this service with a CloudMap service.

Parameters

service (IService) – The cloudmap service to register with.
container (Optional[ContainerDefinition]) – The container to point to for a SRV record. Default: - the task definition’s default container
container_port (Union[int, float, None]) – The port to point to for a SRV record. Default: - the default port of the task definition’s default container

Return type

None

attach_to_application_target_group(target_group)¶

This method is called to attach this service to an Application Load Balancer.

Don’t call this function directly. Instead, call listener.addTargets() to add this service to a load balancer.

Parameters

target_group (IApplicationTargetGroup) –

Return type

LoadBalancerTargetProps

attach_to_classic_lb(load_balancer)¶

Registers the service as a target of a Classic Load Balancer (CLB).

Don’t call this. Call loadBalancer.addTarget() instead.

Parameters

load_balancer (LoadBalancer) –

Return type

None

attach_to_network_target_group(target_group)¶

This method is called to attach this service to a Network Load Balancer.

Don’t call this function directly. Instead, call listener.addTargets() to add this service to a load balancer.

Parameters

target_group (INetworkTargetGroup) –

Return type

LoadBalancerTargetProps

auto_scale_task_count(*, max_capacity, min_capacity=None)¶

An attribute representing the minimum and maximum task count for an AutoScalingGroup.

Parameters

max_capacity (Union[int, float]) – Maximum capacity to scale to.
min_capacity (Union[int, float, None]) – Minimum capacity to scale to. Default: 1

Return type

ScalableTaskCount

enable_cloud_map(*, cloud_map_namespace=None, container=None, container_port=None, dns_record_type=None, dns_ttl=None, failure_threshold=None, name=None)¶

Enable CloudMap service discovery for the service.

Parameters

cloud_map_namespace (Optional[INamespace]) – The service discovery namespace for the Cloud Map service to attach to the ECS service. Default: - the defaultCloudMapNamespace associated to the cluster
container (Optional[ContainerDefinition]) – The container to point to for a SRV record. Default: - the task definition’s default container
container_port (Union[int, float, None]) – The port to point to for a SRV record. Default: - the default port of the task definition’s default container
dns_record_type (Optional[DnsRecordType]) – The DNS record type that you want AWS Cloud Map to create. The supported record types are A or SRV. Default: - DnsRecordType.A if TaskDefinition.networkMode = AWS_VPC, otherwise DnsRecordType.SRV
dns_ttl (Optional[Duration]) – The amount of time that you want DNS resolvers to cache the settings for this record. Default: Duration.minutes(1)
failure_threshold (Union[int, float, None]) – The number of 30-second intervals that you want Cloud Map to wait after receiving an UpdateInstanceCustomHealthStatus request before it changes the health status of a service instance. NOTE: This is used for HealthCheckCustomConfig
name (Optional[str]) – The name of the Cloud Map service to attach to the ECS service. Default: CloudFormation-generated name

Return type

Service

Returns

The created CloudMap service

load_balancer_target(*, container_name, container_port=None, protocol=None)¶

Return a load balancing target for a specific container and port.

Use this function to create a load balancer target if you want to load balance to another container than the first essential container or the first mapped port on the container.

Use the return value of this function where you would normally use a load balancer target, instead of the Service object itself.

Parameters

container_name (str) – The name of the container.
container_port (Union[int, float, None]) – The port number of the container. Only applicable when using application/network load balancers. Default: - Container port of the first added port mapping.
protocol (Optional[Protocol]) – The protocol used for the port mapping. Only applicable when using application load balancers. Default: Protocol.TCP

Example:

# listener: elbv2.ApplicationListener
# service: ecs.BaseService

listener.add_targets("ECS",
    port=80,
    targets=[service.load_balancer_target(
        container_name="MyContainer",
        container_port=1234
    )]
)

Return type: IEcsLoadBalancerTarget

metric(metric_name, *, account=None, color=None, dimensions=None, dimensions_map=None, label=None, period=None, region=None, statistic=None, unit=None)¶

This method returns the specified CloudWatch metric name for this service.

Parameters

metric_name (str) –
account (Optional[str]) – Account which this metric comes from. Default: - Deployment account.
color (Optional[str]) – The hex color code, prefixed with ‘#’ (e.g. ‘#00ff00’), to use when this metric is rendered on a graph. The Color class has a set of standard colors that can be used here. Default: - Automatic color
dimensions (Optional[Mapping[str, Any]]) – (deprecated) Dimensions of the metric. Default: - No dimensions.
dimensions_map (Optional[Mapping[str, str]]) – Dimensions of the metric. Default: - No dimensions.
label (Optional[str]) – Label for this metric when added to a Graph in a Dashboard. Default: - No label
period (Optional[Duration]) – The period over which the specified statistic is applied. Default: Duration.minutes(5)
region (Optional[str]) – Region which this metric comes from. Default: - Deployment region.
statistic (Optional[str]) – What function to use for aggregating. Can be one of the following: - “Minimum” | “min” - “Maximum” | “max” - “Average” | “avg” - “Sum” | “sum” - “SampleCount | “n” - “pNN.NN” Default: Average
unit (Optional[Unit]) – Unit used to filter the metric stream. Only refer to datums emitted to the metric stream with the given unit and ignore all others. Only useful when datums are being emitted to the same metric stream under different units. The default is to use all matric datums in the stream, regardless of unit, which is recommended in nearly all cases. CloudWatch does not honor this property for graphs. Default: - All metric datums in the given metric stream

Return type

Metric

metric_cpu_utilization(*, account=None, color=None, dimensions=None, dimensions_map=None, label=None, period=None, region=None, statistic=None, unit=None)¶

This method returns the CloudWatch metric for this service’s CPU utilization.

Parameters

account (Optional[str]) – Account which this metric comes from. Default: - Deployment account.
color (Optional[str]) – The hex color code, prefixed with ‘#’ (e.g. ‘#00ff00’), to use when this metric is rendered on a graph. The Color class has a set of standard colors that can be used here. Default: - Automatic color
dimensions (Optional[Mapping[str, Any]]) – (deprecated) Dimensions of the metric. Default: - No dimensions.
dimensions_map (Optional[Mapping[str, str]]) – Dimensions of the metric. Default: - No dimensions.
label (Optional[str]) – Label for this metric when added to a Graph in a Dashboard. Default: - No label
period (Optional[Duration]) – The period over which the specified statistic is applied. Default: Duration.minutes(5)
region (Optional[str]) – Region which this metric comes from. Default: - Deployment region.
statistic (Optional[str]) – What function to use for aggregating. Can be one of the following: - “Minimum” | “min” - “Maximum” | “max” - “Average” | “avg” - “Sum” | “sum” - “SampleCount | “n” - “pNN.NN” Default: Average
unit (Optional[Unit]) – Unit used to filter the metric stream. Only refer to datums emitted to the metric stream with the given unit and ignore all others. Only useful when datums are being emitted to the same metric stream under different units. The default is to use all matric datums in the stream, regardless of unit, which is recommended in nearly all cases. CloudWatch does not honor this property for graphs. Default: - All metric datums in the given metric stream

Default

average over 5 minutes

Return type

Metric

metric_memory_utilization(*, account=None, color=None, dimensions=None, dimensions_map=None, label=None, period=None, region=None, statistic=None, unit=None)¶

This method returns the CloudWatch metric for this service’s memory utilization.

Parameters

account (Optional[str]) – Account which this metric comes from. Default: - Deployment account.
color (Optional[str]) – The hex color code, prefixed with ‘#’ (e.g. ‘#00ff00’), to use when this metric is rendered on a graph. The Color class has a set of standard colors that can be used here. Default: - Automatic color
dimensions (Optional[Mapping[str, Any]]) – (deprecated) Dimensions of the metric. Default: - No dimensions.
dimensions_map (Optional[Mapping[str, str]]) – Dimensions of the metric. Default: - No dimensions.
label (Optional[str]) – Label for this metric when added to a Graph in a Dashboard. Default: - No label
period (Optional[Duration]) – The period over which the specified statistic is applied. Default: Duration.minutes(5)
region (Optional[str]) – Region which this metric comes from. Default: - Deployment region.
statistic (Optional[str]) – What function to use for aggregating. Can be one of the following: - “Minimum” | “min” - “Maximum” | “max” - “Average” | “avg” - “Sum” | “sum” - “SampleCount | “n” - “pNN.NN” Default: Average
unit (Optional[Unit]) – Unit used to filter the metric stream. Only refer to datums emitted to the metric stream with the given unit and ignore all others. Only useful when datums are being emitted to the same metric stream under different units. The default is to use all matric datums in the stream, regardless of unit, which is recommended in nearly all cases. CloudWatch does not honor this property for graphs. Default: - All metric datums in the given metric stream

Default

average over 5 minutes

Return type

Metric

register_load_balancer_targets(*targets)¶

Use this function to create all load balancer targets to be registered in this service, add them to target groups, and attach target groups to listeners accordingly.

Alternatively, you can use listener.addTargets() to create targets and add them to target groups.

Parameters

targets (EcsTarget) –

Example:

# listener: elbv2.ApplicationListener
# service: ecs.BaseService

service.register_load_balancer_targets(
    container_name="web",
    container_port=80,
    new_target_group_id="ECS",
    listener=ecs.ListenerConfig.application_listener(listener,
        protocol=elbv2.ApplicationProtocol.HTTPS
    )
)

Return type: None

to_string()¶

Returns a string representation of this construct.

Return type: str

Attributes

cloud_map_service¶

The CloudMap service created for this service, if any.

Return type: Optional[IService]

cluster¶

The cluster that hosts the service.

Return type: ICluster

connections¶

The security groups which manage the allowed network traffic for the service.

Return type: Connections

env¶

The environment this resource belongs to.

For resources that are created and managed by the CDK (generally, those created by creating new class instances like Role, Bucket, etc.), this is always the same as the environment of the stack they belong to; however, for imported resources (those obtained from static methods like fromRoleArn, fromBucketName, etc.), that might be different than the stack they were imported into.

Return type: ResourceEnvironment

node¶

The construct tree node associated with this construct.

Return type: ConstructNode

service_arn¶

The Amazon Resource Name (ARN) of the service.

Return type: str

service_name¶

The name of the service.

Attribute: true
Return type: str

stack¶

The stack in which this resource is defined.

Return type: Stack

task_definition¶

The task definition to use for tasks in the service.

Return type: TaskDefinition

Static Methods

classmethod is_construct(x)¶

Return whether the given object is a Construct.

Parameters

x (Any) –

Return type

bool

classmethod is_resource(construct)¶

Check whether the given construct is a Resource.

Parameters

construct (IConstruct) –

Return type

bool