QueueProcessingServiceBaseProps¶

class aws_cdk.aws_ecs_patterns.QueueProcessingServiceBaseProps(*, image, cluster=None, command=None, desired_task_count=None, enable_ecs_managed_tags=None, enable_logging=None, environment=None, family=None, log_driver=None, max_receive_count=None, max_scaling_capacity=None, propagate_tags=None, queue=None, retention_period=None, scaling_steps=None, secrets=None, service_name=None, vpc=None)¶

Bases: object

__init__(*, image, cluster=None, command=None, desired_task_count=None, enable_ecs_managed_tags=None, enable_logging=None, environment=None, family=None, log_driver=None, max_receive_count=None, max_scaling_capacity=None, propagate_tags=None, queue=None, retention_period=None, scaling_steps=None, secrets=None, service_name=None, vpc=None)¶

The properties for the base QueueProcessingEc2Service or QueueProcessingFargateService service.

Parameters

image (ContainerImage) – The image used to start a container.
cluster (Optional[ICluster]) – The 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.
command (Optional[List[str]]) – The command that is passed to the container. If you provide a shell command as a single string, you have to quote command-line arguments. Default: - CMD value built into container image.
desired_task_count (Union[int, float, None]) – The desired number of instantiations of the task definition to keep running on the service. Default: 1
enable_ecs_managed_tags (Optional[bool]) – Specifies whether to enable Amazon ECS managed tags for the tasks within the service. For more information, see Tagging Your Amazon ECS Resources Default: false
enable_logging (Optional[bool]) – Flag to indicate whether to enable logging. Default: true
environment (Optional[Mapping[str, str]]) – The environment variables to pass to the container. The variable QUEUE_NAME with value queue.queueName will always be passed. Default: ‘QUEUE_NAME: queue.queueName’
family (Optional[str]) – The name of a family that the task definition is registered to. A family groups multiple versions of a task definition. Default: - Automatically generated name.
log_driver (Optional[LogDriver]) – The log driver to use. Default: - AwsLogDriver if enableLogging is true
max_receive_count (Union[int, float, None]) – The maximum number of times that a message can be received by consumers. When this value is exceeded for a message the message will be automatically sent to the Dead Letter Queue. Default: 3
max_scaling_capacity (Union[int, float, None]) – Maximum capacity to scale to. Default: (desiredTaskCount * 2)
propagate_tags (Optional[PropagatedTagSource]) – Specifies 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
queue (Optional[IQueue]) – A queue for which to process items from. If specified and this is a FIFO queue, the queue name must end in the string ‘.fifo’. See CreateQueue Default: ‘SQSQueue with CloudFormation-generated name’
retention_period (Optional[Duration]) – The number of seconds that Dead Letter Queue retains a message. Default: Duration.days(14)
scaling_steps (Optional[List[ScalingInterval]]) – The intervals for scaling based on the SQS queue’s ApproximateNumberOfMessagesVisible metric. Maps a range of metric values to a particular scaling behavior. See Simple and Step Scaling Policies for Amazon EC2 Auto Scaling Default: [{ upper: 0, change: -1 },{ lower: 100, change: +1 },{ lower: 500, change: +5 }]
secrets (Optional[Mapping[str, Secret]]) – The secret to expose to the container as an environment variable. Default: - No secret environment variables.
service_name (Optional[str]) – The name of the service. Default: - CloudFormation-generated name.
vpc (Optional[IVpc]) – The 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.

Attributes

cluster¶

The 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 :default: - create a new cluster; if both cluster and vpc are omitted, a new VPC will be created for you.

Return type: Optional[ICluster]

command¶

The command that is passed to the container.

If you provide a shell command as a single string, you have to quote command-line arguments.

default :default: - CMD value built into container image.

Return type: Optional[List[str]]

desired_task_count¶

The desired number of instantiations of the task definition to keep running on the service.

default :default: 1

Return type: Union[int, float, None]

enable_ecs_managed_tags¶

Specifies whether to enable Amazon ECS managed tags for the tasks within the service.

For more information, see Tagging Your Amazon ECS Resources

default :default: false

Return type: Optional[bool]

enable_logging¶

Flag to indicate whether to enable logging.

default :default: true

Return type: Optional[bool]

environment¶

The environment variables to pass to the container.

The variable QUEUE_NAME with value queue.queueName will always be passed.

default :default: ‘QUEUE_NAME: queue.queueName’

Return type: Optional[Mapping[str, str]]

family¶

The name of a family that the task definition is registered to.

A family groups multiple versions of a task definition.

default :default: - Automatically generated name.

Return type: Optional[str]

image¶

The image used to start a container.

Return type: ContainerImage

log_driver¶

The log driver to use.

default :default: - AwsLogDriver if enableLogging is true

Return type: Optional[LogDriver]

max_receive_count¶

The maximum number of times that a message can be received by consumers.

When this value is exceeded for a message the message will be automatically sent to the Dead Letter Queue.

default :default: 3

Return type: Union[int, float, None]

max_scaling_capacity¶

Maximum capacity to scale to.

default :default: (desiredTaskCount * 2)

Return type: Union[int, float, None]

propagate_tags¶

Specifies 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 :default: - none

Return type: Optional[PropagatedTagSource]

queue¶

A queue for which to process items from.

If specified and this is a FIFO queue, the queue name must end in the string ‘.fifo’. See CreateQueue

default :default: ‘SQSQueue with CloudFormation-generated name’

Return type: Optional[IQueue]

retention_period¶

The number of seconds that Dead Letter Queue retains a message.

default :default: Duration.days(14)

Return type: Optional[Duration]

scaling_steps¶

The intervals for scaling based on the SQS queue’s ApproximateNumberOfMessagesVisible metric.

Maps a range of metric values to a particular scaling behavior. See Simple and Step Scaling Policies for Amazon EC2 Auto Scaling

default :default: [{ upper: 0, change: -1 },{ lower: 100, change: +1 },{ lower: 500, change: +5 }]

Return type: Optional[List[ScalingInterval]]

secrets¶

The secret to expose to the container as an environment variable.

default :default: - No secret environment variables.

Return type: Optional[Mapping[str, Secret]]

service_name¶

The name of the service.

default :default: - CloudFormation-generated name.

Return type: Optional[str]

vpc¶

The 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 :default: - uses the VPC defined in the cluster or creates a new VPC.

Return type: Optional[IVpc]