Copyright | (c) 2013-2021 Brendan Hay |
---|---|
License | Mozilla Public License, v. 2.0. |
Maintainer | Brendan Hay <brendan.g.hay+amazonka@gmail.com> |
Stability | auto-generated |
Portability | non-portable (GHC extensions) |
Safe Haskell | None |
Runs and maintains a desired number of tasks from a specified task
definition. If the number of tasks running in a service drops below the
desiredCount
, Amazon ECS runs another copy of the task in the
specified cluster. To update an existing service, see the UpdateService
action.
In addition to maintaining the desired count of tasks in your service, you can optionally run your service behind one or more load balancers. The load balancers distribute traffic across the tasks that are associated with the service. For more information, see Service Load Balancing in the Amazon Elastic Container Service Developer Guide.
Tasks for services that do not use a load balancer are considered
healthy if they're in the RUNNING
state. Tasks for services that do
use a load balancer are considered healthy if they're in the RUNNING
state and the container instance that they're hosted on is reported as
healthy by the load balancer.
There are two service scheduler strategies available:
REPLICA
- The replica scheduling strategy places and maintains the desired number of tasks across your cluster. By default, the service scheduler spreads tasks across Availability Zones. You can use task placement strategies and constraints to customize task placement decisions. For more information, see Service Scheduler Concepts in the Amazon Elastic Container Service Developer Guide.DAEMON
- The daemon scheduling strategy deploys exactly one task on each active container instance that meets all of the task placement constraints that you specify in your cluster. The service scheduler also evaluates the task placement constraints for running tasks and will stop tasks that do not meet the placement constraints. When using this strategy, you don't need to specify a desired number of tasks, a task placement strategy, or use Service Auto Scaling policies. For more information, see Service Scheduler Concepts in the Amazon Elastic Container Service Developer Guide.
You can optionally specify a deployment configuration for your service.
The deployment is triggered by changing properties, such as the task
definition or the desired count of a service, with an UpdateService
operation. The default value for a replica service for
minimumHealthyPercent
is 100%. The default value for a daemon service
for minimumHealthyPercent
is 0%.
If a service is using the ECS
deployment controller, the minimum
healthy percent represents a lower limit on the number of tasks in a
service that must remain in the RUNNING
state during a deployment, as
a percentage of the desired number of tasks (rounded up to the nearest
integer), and while any container instances are in the DRAINING
state
if the service contains tasks using the EC2 launch type. This parameter
enables you to deploy without using additional cluster capacity. For
example, if your service has a desired number of four tasks and a
minimum healthy percent of 50%, the scheduler might stop two existing
tasks to free up cluster capacity before starting two new tasks. Tasks
for services that do not use a load balancer are considered healthy if
they're in the RUNNING
state. Tasks for services that do use a load
balancer are considered healthy if they're in the RUNNING
state and
they're reported as healthy by the load balancer. The default value for
minimum healthy percent is 100%.
If a service is using the ECS
deployment controller, the __maximum
percent__ parameter represents an upper limit on the number of tasks in
a service that are allowed in the RUNNING
or PENDING
state during a
deployment, as a percentage of the desired number of tasks (rounded down
to the nearest integer), and while any container instances are in the
DRAINING
state if the service contains tasks using the EC2 launch
type. This parameter enables you to define the deployment batch size.
For example, if your service has a desired number of four tasks and a
maximum percent value of 200%, the scheduler may start four new tasks
before stopping the four older tasks (provided that the cluster
resources required to do this are available). The default value for
maximum percent is 200%.
If a service is using either the CODE_DEPLOY
or EXTERNAL
deployment
controller types and tasks that use the EC2 launch type, the __minimum
healthy percent and maximum percent__ values are used only to define
the lower and upper limit on the number of the tasks in the service that
remain in the RUNNING
state while the container instances are in the
DRAINING
state. If the tasks in the service use the Fargate launch
type, the minimum healthy percent and maximum percent values aren't
used, although they're currently visible when describing your service.
When creating a service that uses the EXTERNAL
deployment controller,
you can specify only parameters that aren't controlled at the task set
level. The only required parameter is the service name. You control your
services using the CreateTaskSet operation. For more information, see
Amazon ECS Deployment Types
in the Amazon Elastic Container Service Developer Guide.
When the service scheduler launches new tasks, it determines task placement in your cluster using the following logic:
- Determine which of the container instances in your cluster can support your service's task definition (for example, they have the required CPU, memory, ports, and container instance attributes).
By default, the service scheduler attempts to balance tasks across Availability Zones in this manner (although you can choose a different placement strategy) with the
placementStrategy
parameter):- Sort the valid container instances, giving priority to instances that have the fewest number of running tasks for this service in their respective Availability Zone. For example, if zone A has one running service task and zones B and C each have zero, valid container instances in either zone B or C are considered optimal for placement.
- Place the new service task on a valid container instance in an optimal Availability Zone (based on the previous steps), favoring container instances with the fewest number of running tasks for this service.
Synopsis
- data CreateService = CreateService' {
- cluster :: Maybe Text
- clientToken :: Maybe Text
- propagateTags :: Maybe PropagateTags
- platformVersion :: Maybe Text
- enableECSManagedTags :: Maybe Bool
- desiredCount :: Maybe Int
- loadBalancers :: Maybe [LoadBalancer]
- role' :: Maybe Text
- placementConstraints :: Maybe [PlacementConstraint]
- placementStrategy :: Maybe [PlacementStrategy]
- deploymentController :: Maybe DeploymentController
- launchType :: Maybe LaunchType
- taskDefinition :: Maybe Text
- schedulingStrategy :: Maybe SchedulingStrategy
- healthCheckGracePeriodSeconds :: Maybe Int
- networkConfiguration :: Maybe NetworkConfiguration
- serviceRegistries :: Maybe [ServiceRegistry]
- capacityProviderStrategy :: Maybe [CapacityProviderStrategyItem]
- enableExecuteCommand :: Maybe Bool
- tags :: Maybe [Tag]
- deploymentConfiguration :: Maybe DeploymentConfiguration
- serviceName :: Text
- newCreateService :: Text -> CreateService
- createService_cluster :: Lens' CreateService (Maybe Text)
- createService_clientToken :: Lens' CreateService (Maybe Text)
- createService_propagateTags :: Lens' CreateService (Maybe PropagateTags)
- createService_platformVersion :: Lens' CreateService (Maybe Text)
- createService_enableECSManagedTags :: Lens' CreateService (Maybe Bool)
- createService_desiredCount :: Lens' CreateService (Maybe Int)
- createService_loadBalancers :: Lens' CreateService (Maybe [LoadBalancer])
- createService_role :: Lens' CreateService (Maybe Text)
- createService_placementConstraints :: Lens' CreateService (Maybe [PlacementConstraint])
- createService_placementStrategy :: Lens' CreateService (Maybe [PlacementStrategy])
- createService_deploymentController :: Lens' CreateService (Maybe DeploymentController)
- createService_launchType :: Lens' CreateService (Maybe LaunchType)
- createService_taskDefinition :: Lens' CreateService (Maybe Text)
- createService_schedulingStrategy :: Lens' CreateService (Maybe SchedulingStrategy)
- createService_healthCheckGracePeriodSeconds :: Lens' CreateService (Maybe Int)
- createService_networkConfiguration :: Lens' CreateService (Maybe NetworkConfiguration)
- createService_serviceRegistries :: Lens' CreateService (Maybe [ServiceRegistry])
- createService_capacityProviderStrategy :: Lens' CreateService (Maybe [CapacityProviderStrategyItem])
- createService_enableExecuteCommand :: Lens' CreateService (Maybe Bool)
- createService_tags :: Lens' CreateService (Maybe [Tag])
- createService_deploymentConfiguration :: Lens' CreateService (Maybe DeploymentConfiguration)
- createService_serviceName :: Lens' CreateService Text
- data CreateServiceResponse = CreateServiceResponse' {}
- newCreateServiceResponse :: Int -> CreateServiceResponse
- createServiceResponse_service :: Lens' CreateServiceResponse (Maybe ContainerService)
- createServiceResponse_httpStatus :: Lens' CreateServiceResponse Int
Creating a Request
data CreateService Source #
See: newCreateService
smart constructor.
CreateService' | |
|
Instances
Create a value of CreateService
with all optional fields omitted.
Use generic-lens or optics to modify other optional fields.
The following record fields are available, with the corresponding lenses provided for backwards compatibility:
$sel:cluster:CreateService'
, createService_cluster
- The short name or full Amazon Resource Name (ARN) of the cluster on
which to run your service. If you do not specify a cluster, the default
cluster is assumed.
$sel:clientToken:CreateService'
, createService_clientToken
- Unique, case-sensitive identifier that you provide to ensure the
idempotency of the request. Up to 32 ASCII characters are allowed.
$sel:propagateTags:CreateService'
, createService_propagateTags
- Specifies whether to propagate the tags from the task definition or the
service to the tasks in the service. If no value is specified, the tags
are not propagated. Tags can only be propagated to the tasks within the
service during service creation. To add tags to a task after service
creation or task creation, use the TagResource API action.
$sel:platformVersion:CreateService'
, createService_platformVersion
- The platform version that your tasks in the service are running on. A
platform version is specified only for tasks using the Fargate launch
type. If one isn't specified, the LATEST
platform version is used by
default. For more information, see
Fargate platform versions
in the Amazon Elastic Container Service Developer Guide.
$sel:enableECSManagedTags:CreateService'
, createService_enableECSManagedTags
- Specifies whether to enable Amazon ECS managed tags for the tasks within
the service. For more information, see
Tagging Your Amazon ECS Resources
in the Amazon Elastic Container Service Developer Guide.
$sel:desiredCount:CreateService'
, createService_desiredCount
- The number of instantiations of the specified task definition to place
and keep running on your cluster.
This is required if schedulingStrategy
is REPLICA
or is not
specified. If schedulingStrategy
is DAEMON
then this is not
required.
$sel:loadBalancers:CreateService'
, createService_loadBalancers
- A load balancer object representing the load balancers to use with your
service. For more information, see
Service Load Balancing
in the Amazon Elastic Container Service Developer Guide.
If the service is using the rolling update (ECS
) deployment controller
and using either an Application Load Balancer or Network Load Balancer,
you must specify one or more target group ARNs to attach to the service.
The service-linked role is required for services that make use of
multiple target groups. For more information, see
Using service-linked roles for Amazon ECS
in the Amazon Elastic Container Service Developer Guide.
If the service is using the CODE_DEPLOY
deployment controller, the
service is required to use either an Application Load Balancer or
Network Load Balancer. When creating an CodeDeploy deployment group, you
specify two target groups (referred to as a targetGroupPair
). During a
deployment, CodeDeploy determines which task set in your service has the
status PRIMARY
and associates one target group with it, and then
associates the other target group with the replacement task set. The
load balancer can also have up to two listeners: a required listener for
production traffic and an optional listener that allows you perform
validation tests with Lambda functions before routing production traffic
to it.
After you create a service using the ECS
deployment controller, the
load balancer name or target group ARN, container name, and container
port specified in the service definition are immutable. If you are using
the CODE_DEPLOY
deployment controller, these values can be changed
when updating the service.
For Application Load Balancers and Network Load Balancers, this object must contain the load balancer target group ARN, the container name (as it appears in a container definition), and the container port to access from the load balancer. The load balancer name parameter must be omitted. When a task from this service is placed on a container instance, the container instance and port combination is registered as a target in the target group specified here.
For Classic Load Balancers, this object must contain the load balancer name, the container name (as it appears in a container definition), and the container port to access from the load balancer. The target group ARN parameter must be omitted. When a task from this service is placed on a container instance, the container instance is registered with the load balancer specified here.
Services with tasks that use the awsvpc
network mode (for example,
those with the Fargate launch type) only support Application Load
Balancers and Network Load Balancers. Classic Load Balancers are not
supported. Also, when you create any target groups for these services,
you must choose ip
as the target type, not instance
, because tasks
that use the awsvpc
network mode are associated with an elastic
network interface, not an Amazon EC2 instance.
$sel:role':CreateService'
, createService_role
- The name or full Amazon Resource Name (ARN) of the IAM role that allows
Amazon ECS to make calls to your load balancer on your behalf. This
parameter is only permitted if you are using a load balancer with your
service and your task definition does not use the awsvpc
network mode.
If you specify the role
parameter, you must also specify a load
balancer object with the loadBalancers
parameter.
If your account has already created the Amazon ECS service-linked role,
that role is used by default for your service unless you specify a role
here. The service-linked role is required if your task definition uses
the awsvpc
network mode or if the service is configured to use service
discovery, an external deployment controller, multiple target groups, or
Elastic Inference accelerators in which case you should not specify a
role here. For more information, see
Using service-linked roles for Amazon ECS
in the Amazon Elastic Container Service Developer Guide.
If your specified role has a path other than /
, then you must either
specify the full role ARN (this is recommended) or prefix the role name
with the path. For example, if a role with the name bar
has a path of
/foo/
then you would specify /foo/bar
as the role name. For more
information, see
Friendly names and paths
in the IAM User Guide.
$sel:placementConstraints:CreateService'
, createService_placementConstraints
- An array of placement constraint objects to use for tasks in your
service. You can specify a maximum of 10 constraints per task (this
limit includes constraints in the task definition and those specified at
runtime).
$sel:placementStrategy:CreateService'
, createService_placementStrategy
- The placement strategy objects to use for tasks in your service. You can
specify a maximum of 5 strategy rules per service.
$sel:deploymentController:CreateService'
, createService_deploymentController
- The deployment controller to use for the service. If no deployment
controller is specified, the default value of ECS
is used.
$sel:launchType:CreateService'
, createService_launchType
- The infrastructure on which to run your service. For more information,
see
Amazon ECS launch types
in the Amazon Elastic Container Service Developer Guide.
The FARGATE
launch type runs your tasks on Fargate On-Demand
infrastructure.
Fargate Spot infrastructure is available for use but a capacity provider strategy must be used. For more information, see Fargate capacity providers in the Amazon ECS User Guide for Fargate.
The EC2
launch type runs your tasks on Amazon EC2 instances registered
to your cluster.
The EXTERNAL
launch type runs your tasks on your on-premise server or
virtual machine (VM) capacity registered to your cluster.
A service can use either a launch type or a capacity provider strategy.
If a launchType
is specified, the capacityProviderStrategy
parameter
must be omitted.
$sel:taskDefinition:CreateService'
, createService_taskDefinition
- The family
and revision
(family:revision
) or full ARN of the task
definition to run in your service. If a revision
is not specified, the
latest ACTIVE
revision is used.
A task definition must be specified if the service is using either the
ECS
or CODE_DEPLOY
deployment controllers.
$sel:schedulingStrategy:CreateService'
, createService_schedulingStrategy
- The scheduling strategy to use for the service. For more information,
see
Services.
There are two service scheduler strategies available:
REPLICA
-The replica scheduling strategy places and maintains the desired number of tasks across your cluster. By default, the service scheduler spreads tasks across Availability Zones. You can use task placement strategies and constraints to customize task placement decisions. This scheduler strategy is required if the service is using theCODE_DEPLOY
orEXTERNAL
deployment controller types.DAEMON
-The daemon scheduling strategy deploys exactly one task on each active container instance that meets all of the task placement constraints that you specify in your cluster. The service scheduler also evaluates the task placement constraints for running tasks and will stop tasks that do not meet the placement constraints. When you're using this strategy, you don't need to specify a desired number of tasks, a task placement strategy, or use Service Auto Scaling policies.Tasks using the Fargate launch type or the
CODE_DEPLOY
orEXTERNAL
deployment controller types don't support theDAEMON
scheduling strategy.
$sel:healthCheckGracePeriodSeconds:CreateService'
, createService_healthCheckGracePeriodSeconds
- The period of time, in seconds, that the Amazon ECS service scheduler
should ignore unhealthy Elastic Load Balancing target health checks
after a task has first started. This is only used when your service is
configured to use a load balancer. If your service has a load balancer
defined and you don't specify a health check grace period value, the
default value of 0
is used.
If your service's tasks take a while to start and respond to Elastic Load Balancing health checks, you can specify a health check grace period of up to 2,147,483,647 seconds. During that time, the Amazon ECS service scheduler ignores health check status. This grace period can prevent the service scheduler from marking tasks as unhealthy and stopping them before they have time to come up.
$sel:networkConfiguration:CreateService'
, createService_networkConfiguration
- The network configuration for the service. This parameter is required
for task definitions that use the awsvpc
network mode to receive their
own elastic network interface, and it is not supported for other network
modes. For more information, see
Task networking
in the Amazon Elastic Container Service Developer Guide.
$sel:serviceRegistries:CreateService'
, createService_serviceRegistries
- The details of the service discovery registry to associate with this
service. For more information, see
Service discovery.
Each service may be associated with one service registry. Multiple service registries per service isn't supported.
$sel:capacityProviderStrategy:CreateService'
, createService_capacityProviderStrategy
- The capacity provider strategy to use for the service.
If a capacityProviderStrategy
is specified, the launchType
parameter
must be omitted. If no capacityProviderStrategy
or launchType
is
specified, the defaultCapacityProviderStrategy
for the cluster is
used.
A capacity provider strategy may contain a maximum of 6 capacity providers.
$sel:enableExecuteCommand:CreateService'
, createService_enableExecuteCommand
- Whether or not the execute command functionality is enabled for the
service. If true
, this enables execute command functionality on all
containers in the service tasks.
$sel:tags:CreateService'
, createService_tags
- The metadata that you apply to the service to help you categorize and
organize them. Each tag consists of a key and an optional value, both of
which you define. When a service is deleted, the tags are deleted as
well.
The following basic restrictions apply to tags:
- Maximum number of tags per resource - 50
- For each resource, each tag key must be unique, and each tag key can have only one value.
- Maximum key length - 128 Unicode characters in UTF-8
- Maximum value length - 256 Unicode characters in UTF-8
- If your tagging schema is used across multiple services and resources, remember that other services may have restrictions on allowed characters. Generally allowed characters are: letters, numbers, and spaces representable in UTF-8, and the following characters: + - = . _ : / @.
- Tag keys and values are case-sensitive.
- Do not use
aws:
,AWS:
, or any upper or lowercase combination of such as a prefix for either keys or values as it is reserved for Amazon Web Services use. You cannot edit or delete tag keys or values with this prefix. Tags with this prefix do not count against your tags per resource limit.
$sel:deploymentConfiguration:CreateService'
, createService_deploymentConfiguration
- Optional deployment parameters that control how many tasks run during
the deployment and the ordering of stopping and starting tasks.
$sel:serviceName:CreateService'
, createService_serviceName
- The name of your service. Up to 255 letters (uppercase and lowercase),
numbers, underscores, and hyphens are allowed. Service names must be
unique within a cluster, but you can have similarly named services in
multiple clusters within a Region or across multiple Regions.
Request Lenses
createService_cluster :: Lens' CreateService (Maybe Text) Source #
The short name or full Amazon Resource Name (ARN) of the cluster on which to run your service. If you do not specify a cluster, the default cluster is assumed.
createService_clientToken :: Lens' CreateService (Maybe Text) Source #
Unique, case-sensitive identifier that you provide to ensure the idempotency of the request. Up to 32 ASCII characters are allowed.
createService_propagateTags :: Lens' CreateService (Maybe PropagateTags) Source #
Specifies whether to propagate the tags from the task definition or the service to the tasks in the service. If no value is specified, the tags are not propagated. Tags can only be propagated to the tasks within the service during service creation. To add tags to a task after service creation or task creation, use the TagResource API action.
createService_platformVersion :: Lens' CreateService (Maybe Text) Source #
The platform version that your tasks in the service are running on. A
platform version is specified only for tasks using the Fargate launch
type. If one isn't specified, the LATEST
platform version is used by
default. For more information, see
Fargate platform versions
in the Amazon Elastic Container Service Developer Guide.
createService_enableECSManagedTags :: Lens' CreateService (Maybe Bool) Source #
Specifies whether to enable Amazon ECS managed tags for the tasks within the service. For more information, see Tagging Your Amazon ECS Resources in the Amazon Elastic Container Service Developer Guide.
createService_desiredCount :: Lens' CreateService (Maybe Int) Source #
The number of instantiations of the specified task definition to place and keep running on your cluster.
This is required if schedulingStrategy
is REPLICA
or is not
specified. If schedulingStrategy
is DAEMON
then this is not
required.
createService_loadBalancers :: Lens' CreateService (Maybe [LoadBalancer]) Source #
A load balancer object representing the load balancers to use with your service. For more information, see Service Load Balancing in the Amazon Elastic Container Service Developer Guide.
If the service is using the rolling update (ECS
) deployment controller
and using either an Application Load Balancer or Network Load Balancer,
you must specify one or more target group ARNs to attach to the service.
The service-linked role is required for services that make use of
multiple target groups. For more information, see
Using service-linked roles for Amazon ECS
in the Amazon Elastic Container Service Developer Guide.
If the service is using the CODE_DEPLOY
deployment controller, the
service is required to use either an Application Load Balancer or
Network Load Balancer. When creating an CodeDeploy deployment group, you
specify two target groups (referred to as a targetGroupPair
). During a
deployment, CodeDeploy determines which task set in your service has the
status PRIMARY
and associates one target group with it, and then
associates the other target group with the replacement task set. The
load balancer can also have up to two listeners: a required listener for
production traffic and an optional listener that allows you perform
validation tests with Lambda functions before routing production traffic
to it.
After you create a service using the ECS
deployment controller, the
load balancer name or target group ARN, container name, and container
port specified in the service definition are immutable. If you are using
the CODE_DEPLOY
deployment controller, these values can be changed
when updating the service.
For Application Load Balancers and Network Load Balancers, this object must contain the load balancer target group ARN, the container name (as it appears in a container definition), and the container port to access from the load balancer. The load balancer name parameter must be omitted. When a task from this service is placed on a container instance, the container instance and port combination is registered as a target in the target group specified here.
For Classic Load Balancers, this object must contain the load balancer name, the container name (as it appears in a container definition), and the container port to access from the load balancer. The target group ARN parameter must be omitted. When a task from this service is placed on a container instance, the container instance is registered with the load balancer specified here.
Services with tasks that use the awsvpc
network mode (for example,
those with the Fargate launch type) only support Application Load
Balancers and Network Load Balancers. Classic Load Balancers are not
supported. Also, when you create any target groups for these services,
you must choose ip
as the target type, not instance
, because tasks
that use the awsvpc
network mode are associated with an elastic
network interface, not an Amazon EC2 instance.
createService_role :: Lens' CreateService (Maybe Text) Source #
The name or full Amazon Resource Name (ARN) of the IAM role that allows
Amazon ECS to make calls to your load balancer on your behalf. This
parameter is only permitted if you are using a load balancer with your
service and your task definition does not use the awsvpc
network mode.
If you specify the role
parameter, you must also specify a load
balancer object with the loadBalancers
parameter.
If your account has already created the Amazon ECS service-linked role,
that role is used by default for your service unless you specify a role
here. The service-linked role is required if your task definition uses
the awsvpc
network mode or if the service is configured to use service
discovery, an external deployment controller, multiple target groups, or
Elastic Inference accelerators in which case you should not specify a
role here. For more information, see
Using service-linked roles for Amazon ECS
in the Amazon Elastic Container Service Developer Guide.
If your specified role has a path other than /
, then you must either
specify the full role ARN (this is recommended) or prefix the role name
with the path. For example, if a role with the name bar
has a path of
/foo/
then you would specify /foo/bar
as the role name. For more
information, see
Friendly names and paths
in the IAM User Guide.
createService_placementConstraints :: Lens' CreateService (Maybe [PlacementConstraint]) Source #
An array of placement constraint objects to use for tasks in your service. You can specify a maximum of 10 constraints per task (this limit includes constraints in the task definition and those specified at runtime).
createService_placementStrategy :: Lens' CreateService (Maybe [PlacementStrategy]) Source #
The placement strategy objects to use for tasks in your service. You can specify a maximum of 5 strategy rules per service.
createService_deploymentController :: Lens' CreateService (Maybe DeploymentController) Source #
The deployment controller to use for the service. If no deployment
controller is specified, the default value of ECS
is used.
createService_launchType :: Lens' CreateService (Maybe LaunchType) Source #
The infrastructure on which to run your service. For more information, see Amazon ECS launch types in the Amazon Elastic Container Service Developer Guide.
The FARGATE
launch type runs your tasks on Fargate On-Demand
infrastructure.
Fargate Spot infrastructure is available for use but a capacity provider strategy must be used. For more information, see Fargate capacity providers in the Amazon ECS User Guide for Fargate.
The EC2
launch type runs your tasks on Amazon EC2 instances registered
to your cluster.
The EXTERNAL
launch type runs your tasks on your on-premise server or
virtual machine (VM) capacity registered to your cluster.
A service can use either a launch type or a capacity provider strategy.
If a launchType
is specified, the capacityProviderStrategy
parameter
must be omitted.
createService_taskDefinition :: Lens' CreateService (Maybe Text) Source #
The family
and revision
(family:revision
) or full ARN of the task
definition to run in your service. If a revision
is not specified, the
latest ACTIVE
revision is used.
A task definition must be specified if the service is using either the
ECS
or CODE_DEPLOY
deployment controllers.
createService_schedulingStrategy :: Lens' CreateService (Maybe SchedulingStrategy) Source #
The scheduling strategy to use for the service. For more information, see Services.
There are two service scheduler strategies available:
REPLICA
-The replica scheduling strategy places and maintains the desired number of tasks across your cluster. By default, the service scheduler spreads tasks across Availability Zones. You can use task placement strategies and constraints to customize task placement decisions. This scheduler strategy is required if the service is using theCODE_DEPLOY
orEXTERNAL
deployment controller types.DAEMON
-The daemon scheduling strategy deploys exactly one task on each active container instance that meets all of the task placement constraints that you specify in your cluster. The service scheduler also evaluates the task placement constraints for running tasks and will stop tasks that do not meet the placement constraints. When you're using this strategy, you don't need to specify a desired number of tasks, a task placement strategy, or use Service Auto Scaling policies.Tasks using the Fargate launch type or the
CODE_DEPLOY
orEXTERNAL
deployment controller types don't support theDAEMON
scheduling strategy.
createService_healthCheckGracePeriodSeconds :: Lens' CreateService (Maybe Int) Source #
The period of time, in seconds, that the Amazon ECS service scheduler
should ignore unhealthy Elastic Load Balancing target health checks
after a task has first started. This is only used when your service is
configured to use a load balancer. If your service has a load balancer
defined and you don't specify a health check grace period value, the
default value of 0
is used.
If your service's tasks take a while to start and respond to Elastic Load Balancing health checks, you can specify a health check grace period of up to 2,147,483,647 seconds. During that time, the Amazon ECS service scheduler ignores health check status. This grace period can prevent the service scheduler from marking tasks as unhealthy and stopping them before they have time to come up.
createService_networkConfiguration :: Lens' CreateService (Maybe NetworkConfiguration) Source #
The network configuration for the service. This parameter is required
for task definitions that use the awsvpc
network mode to receive their
own elastic network interface, and it is not supported for other network
modes. For more information, see
Task networking
in the Amazon Elastic Container Service Developer Guide.
createService_serviceRegistries :: Lens' CreateService (Maybe [ServiceRegistry]) Source #
The details of the service discovery registry to associate with this service. For more information, see Service discovery.
Each service may be associated with one service registry. Multiple service registries per service isn't supported.
createService_capacityProviderStrategy :: Lens' CreateService (Maybe [CapacityProviderStrategyItem]) Source #
The capacity provider strategy to use for the service.
If a capacityProviderStrategy
is specified, the launchType
parameter
must be omitted. If no capacityProviderStrategy
or launchType
is
specified, the defaultCapacityProviderStrategy
for the cluster is
used.
A capacity provider strategy may contain a maximum of 6 capacity providers.
createService_enableExecuteCommand :: Lens' CreateService (Maybe Bool) Source #
Whether or not the execute command functionality is enabled for the
service. If true
, this enables execute command functionality on all
containers in the service tasks.
createService_tags :: Lens' CreateService (Maybe [Tag]) Source #
The metadata that you apply to the service to help you categorize and organize them. Each tag consists of a key and an optional value, both of which you define. When a service is deleted, the tags are deleted as well.
The following basic restrictions apply to tags:
- Maximum number of tags per resource - 50
- For each resource, each tag key must be unique, and each tag key can have only one value.
- Maximum key length - 128 Unicode characters in UTF-8
- Maximum value length - 256 Unicode characters in UTF-8
- If your tagging schema is used across multiple services and resources, remember that other services may have restrictions on allowed characters. Generally allowed characters are: letters, numbers, and spaces representable in UTF-8, and the following characters: + - = . _ : / @.
- Tag keys and values are case-sensitive.
- Do not use
aws:
,AWS:
, or any upper or lowercase combination of such as a prefix for either keys or values as it is reserved for Amazon Web Services use. You cannot edit or delete tag keys or values with this prefix. Tags with this prefix do not count against your tags per resource limit.
createService_deploymentConfiguration :: Lens' CreateService (Maybe DeploymentConfiguration) Source #
Optional deployment parameters that control how many tasks run during the deployment and the ordering of stopping and starting tasks.
createService_serviceName :: Lens' CreateService Text Source #
The name of your service. Up to 255 letters (uppercase and lowercase), numbers, underscores, and hyphens are allowed. Service names must be unique within a cluster, but you can have similarly named services in multiple clusters within a Region or across multiple Regions.
Destructuring the Response
data CreateServiceResponse Source #
See: newCreateServiceResponse
smart constructor.
CreateServiceResponse' | |
|
Instances
newCreateServiceResponse Source #
Create a value of CreateServiceResponse
with all optional fields omitted.
Use generic-lens or optics to modify other optional fields.
The following record fields are available, with the corresponding lenses provided for backwards compatibility:
$sel:service:CreateServiceResponse'
, createServiceResponse_service
- The full description of your service following the create call.
A service will return either a capacityProviderStrategy
or
launchType
parameter, but not both, depending on which one was
specified during creation.
If a service is using the ECS
deployment controller, the
deploymentController
and taskSets
parameters will not be returned.
If the service is using the CODE_DEPLOY
deployment controller, the
deploymentController
, taskSets
and deployments
parameters will be
returned, however the deployments
parameter will be an empty list.
$sel:httpStatus:CreateServiceResponse'
, createServiceResponse_httpStatus
- The response's http status code.
Response Lenses
createServiceResponse_service :: Lens' CreateServiceResponse (Maybe ContainerService) Source #
The full description of your service following the create call.
A service will return either a capacityProviderStrategy
or
launchType
parameter, but not both, depending on which one was
specified during creation.
If a service is using the ECS
deployment controller, the
deploymentController
and taskSets
parameters will not be returned.
If the service is using the CODE_DEPLOY
deployment controller, the
deploymentController
, taskSets
and deployments
parameters will be
returned, however the deployments
parameter will be an empty list.
createServiceResponse_httpStatus :: Lens' CreateServiceResponse Int Source #
The response's http status code.