class CfnListener (construct)
Language | Type name |
---|---|
.NET | Amazon.CDK.AWS.VpcLattice.CfnListener |
Java | software.amazon.awscdk.services.vpclattice.CfnListener |
Python | aws_cdk.aws_vpclattice.CfnListener |
TypeScript | @aws-cdk/aws-vpclattice » CfnListener |
Implements
IConstruct
, IConstruct
, IDependable
, IInspectable
A CloudFormation AWS::VpcLattice::Listener
.
Creates a listener for a service. Before you start using your Amazon VPC Lattice service, you must add one or more listeners. A listener is a process that checks for connection requests to your services. For more information, see Listeners in the Amazon VPC Lattice User Guide .
Example
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as vpclattice from '@aws-cdk/aws-vpclattice';
const cfnListener = new vpclattice.CfnListener(this, 'MyCfnListener', {
defaultAction: {
fixedResponse: {
statusCode: 123,
},
forward: {
targetGroups: [{
targetGroupIdentifier: 'targetGroupIdentifier',
// the properties below are optional
weight: 123,
}],
},
},
protocol: 'protocol',
// the properties below are optional
name: 'name',
port: 123,
serviceIdentifier: 'serviceIdentifier',
tags: [{
key: 'key',
value: 'value',
}],
});
Initializer
new CfnListener(scope: Construct, id: string, props: CfnListenerProps)
Parameters
- scope
Construct
— - scope in which this resource is defined. - id
string
— - scoped id of the resource. - props
Cfn
— - resource properties.Listener Props
Create a new AWS::VpcLattice::Listener
.
Construct Props
Name | Type | Description |
---|---|---|
default | IResolvable | Default | The action for the default rule. |
protocol | string | The listener protocol HTTP or HTTPS. |
name? | string | The name of the listener. |
port? | number | The listener port. |
service | string | The ID or Amazon Resource Name (ARN) of the service. |
tags? | Cfn [] | The tags for the listener. |
defaultAction
Type:
IResolvable
|
Default
The action for the default rule.
Each listener has a default rule. Each rule consists of a priority, one or more actions, and one or more conditions. The default rule is the rule that's used if no other rules match. Each rule must include exactly one of the following types of actions: forward
or fixed-response
, and it must be the last action to be performed.
protocol
Type:
string
The listener protocol HTTP or HTTPS.
name?
Type:
string
(optional)
The name of the listener.
A listener name must be unique within a service. The valid characters are a-z, 0-9, and hyphens (-). You can't use a hyphen as the first or last character, or immediately after another hyphen.
If you don't specify a name, CloudFormation generates one. However, if you specify a name, and later want to replace the resource, you must specify a new name.
port?
Type:
number
(optional)
The listener port.
You can specify a value from 1
to 65535
. For HTTP, the default is 80
. For HTTPS, the default is 443
.
serviceIdentifier?
Type:
string
(optional)
The ID or Amazon Resource Name (ARN) of the service.
tags?
Type:
Cfn
[]
(optional)
The tags for the listener.
Properties
Name | Type | Description |
---|---|---|
attr | string | The Amazon Resource Name (ARN) of the listener. |
attr | string | The ID of the listener. |
attr | string | The Amazon Resource Name (ARN) of the service. |
attr | string | The ID of the service. |
cfn | ICfn | Options for this resource, such as condition, update policy etc. |
cfn | { [string]: any } | |
cfn | string | AWS resource type. |
creation | string[] | |
default | IResolvable | Default | The action for the default rule. |
logical | string | The logical ID for this CloudFormation stack element. |
node | Construct | The construct tree node associated with this construct. |
protocol | string | The listener protocol HTTP or HTTPS. |
ref | string | Return a string that will be resolved to a CloudFormation { Ref } for this element. |
stack | Stack | The stack in which this element is defined. |
tags | Tag | The tags for the listener. |
name? | string | The name of the listener. |
port? | number | The listener port. |
service | string | The ID or Amazon Resource Name (ARN) of the service. |
static CFN_RESOURCE_TYPE_NAME | string | The CloudFormation resource type name for this resource class. |
attrArn
Type:
string
The Amazon Resource Name (ARN) of the listener.
attrId
Type:
string
The ID of the listener.
attrServiceArn
Type:
string
The Amazon Resource Name (ARN) of the service.
attrServiceId
Type:
string
The ID of the service.
cfnOptions
Type:
ICfn
Options for this resource, such as condition, update policy etc.
cfnProperties
Type:
{ [string]: any }
cfnResourceType
Type:
string
AWS resource type.
creationStack
Type:
string[]
defaultAction
Type:
IResolvable
|
Default
The action for the default rule.
Each listener has a default rule. Each rule consists of a priority, one or more actions, and one or more conditions. The default rule is the rule that's used if no other rules match. Each rule must include exactly one of the following types of actions: forward
or fixed-response
, and it must be the last action to be performed.
logicalId
Type:
string
The logical ID for this CloudFormation stack element.
The logical ID of the element is calculated from the path of the resource node in the construct tree.
To override this value, use overrideLogicalId(newLogicalId)
.
node
Type:
Construct
The construct tree node associated with this construct.
protocol
Type:
string
The listener protocol HTTP or HTTPS.
ref
Type:
string
Return a string that will be resolved to a CloudFormation { Ref }
for this element.
If, by any chance, the intrinsic reference of a resource is not a string, you could
coerce it to an IResolvable through Lazy.any({ produce: resource.ref })
.
stack
Type:
Stack
The stack in which this element is defined.
CfnElements must be defined within a stack scope (directly or indirectly).
tags
Type:
Tag
The tags for the listener.
name?
Type:
string
(optional)
The name of the listener.
A listener name must be unique within a service. The valid characters are a-z, 0-9, and hyphens (-). You can't use a hyphen as the first or last character, or immediately after another hyphen.
If you don't specify a name, CloudFormation generates one. However, if you specify a name, and later want to replace the resource, you must specify a new name.
port?
Type:
number
(optional)
The listener port.
You can specify a value from 1
to 65535
. For HTTP, the default is 80
. For HTTPS, the default is 443
.
serviceIdentifier?
Type:
string
(optional)
The ID or Amazon Resource Name (ARN) of the service.
static CFN_RESOURCE_TYPE_NAME
Type:
string
The CloudFormation resource type name for this resource class.
Methods
Name | Description |
---|---|
add | Syntactic sugar for addOverride(path, undefined) . |
add | Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned. |
add | Add a value to the CloudFormation Resource Metadata. |
add | Adds an override to the synthesized CloudFormation resource. |
add | Adds an override that deletes the value of a property from the resource definition. |
add | Adds an override to a resource property. |
apply | Sets the deletion policy of the resource based on the removal policy specified. |
get | Returns a token for an runtime attribute of this resource. |
get | Retrieve a value value from the CloudFormation Resource Metadata. |
inspect(inspector) | Examines the CloudFormation resource and discloses attributes. |
override | Overrides the auto-generated logical ID with a specific ID. |
to | Returns a string representation of this construct. |
protected render |
DeletionOverride(path)
addpublic addDeletionOverride(path: string): void
Parameters
- path
string
— The path of the value to delete.
Syntactic sugar for addOverride(path, undefined)
.
DependsOn(target)
addpublic addDependsOn(target: CfnResource): void
Parameters
- target
Cfn
Resource
Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.
This can be used for resources across stacks (or nested stack) boundaries and the dependency will automatically be transferred to the relevant scope.
Metadata(key, value)
addpublic addMetadata(key: string, value: any): void
Parameters
- key
string
- value
any
Add a value to the CloudFormation Resource Metadata.
See also: [https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html
Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html
Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.)
Override(path, value)
addpublic addOverride(path: string, value: any): void
Parameters
- path
string
— - The path of the property, you can use dot notation to override values in complex types. - value
any
— - The value.
Adds an override to the synthesized CloudFormation resource.
To add a
property override, either use addPropertyOverride
or prefix path
with
"Properties." (i.e. Properties.TopicName
).
If the override is nested, separate each nested level using a dot (.) in the path parameter. If there is an array as part of the nesting, specify the index in the path.
To include a literal .
in the property name, prefix with a \
. In most
programming languages you will need to write this as "\\."
because the
\
itself will need to be escaped.
For example,
cfnResource.addOverride('Properties.GlobalSecondaryIndexes.0.Projection.NonKeyAttributes', ['myattribute']);
cfnResource.addOverride('Properties.GlobalSecondaryIndexes.1.ProjectionType', 'INCLUDE');
would add the overrides
"Properties": {
"GlobalSecondaryIndexes": [
{
"Projection": {
"NonKeyAttributes": [ "myattribute" ]
...
}
...
},
{
"ProjectionType": "INCLUDE"
...
},
]
...
}
The value
argument to addOverride
will not be processed or translated
in any way. Pass raw JSON values in here with the correct capitalization
for CloudFormation. If you pass CDK classes or structs, they will be
rendered with lowercased key names, and CloudFormation will reject the
template.
PropertyDeletionOverride(propertyPath)
addpublic addPropertyDeletionOverride(propertyPath: string): void
Parameters
- propertyPath
string
— The path to the property.
Adds an override that deletes the value of a property from the resource definition.
PropertyOverride(propertyPath, value)
addpublic addPropertyOverride(propertyPath: string, value: any): void
Parameters
- propertyPath
string
— The path of the property. - value
any
— The value.
Adds an override to a resource property.
Syntactic sugar for addOverride("Properties.<...>", value)
.
RemovalPolicy(policy?, options?)
applypublic applyRemovalPolicy(policy?: RemovalPolicy, options?: RemovalPolicyOptions): void
Parameters
- policy
Removal
Policy - options
Removal
Policy Options
Sets the deletion policy of the resource based on the removal policy specified.
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
).
Att(attributeName)
getpublic getAtt(attributeName: string): Reference
Parameters
- attributeName
string
— The name of the attribute.
Returns
Returns a token for an runtime attribute of this resource.
Ideally, use generated attribute accessors (e.g. resource.arn
), but this can be used for future compatibility
in case there is no generated attribute.
Metadata(key)
getpublic getMetadata(key: string): any
Parameters
- key
string
Returns
any
Retrieve a value value from the CloudFormation Resource Metadata.
See also: [https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html
Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html
Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.)
inspect(inspector)
public inspect(inspector: TreeInspector): void
Parameters
- inspector
Tree
— - tree inspector to collect and process attributes.Inspector
Examines the CloudFormation resource and discloses attributes.
LogicalId(newLogicalId)
overridepublic overrideLogicalId(newLogicalId: string): void
Parameters
- newLogicalId
string
— The new logical ID to use for this stack element.
Overrides the auto-generated logical ID with a specific ID.
String()
topublic toString(): string
Returns
string
Returns a string representation of this construct.
Properties(props)
protected renderprotected renderProperties(props: { [string]: any }): { [string]: any }
Parameters
- props
{ [string]: any }
Returns
{ [string]: any }