ULB.Listener

Element Description

The ULB.Listener element indicates the listener under a shared load balancer. One shared load balancer corresponds to multiple listeners. You can add or delete listeners as required.

Element Properties

**Table 1** Property Description
Property	Required	Descripiton
protocol	Yes	Listening protocol Type: string Value Description: This value can be TCP or HTTP. Value Constraint: Supports"TCP", "HTTP" Suggestion: Set the value based on specifications and requirements.
description	No	Description Type: string Value Description: Supports customization. Value Constraint: The value supports a maximum of 255 characters. Suggestion: Customize the value.
connectionLimit	No	Maximum number of connections of the listener Type: integer Value Description: If the number of connections is -1, there is no constraints. Value Constraint: Supports [-1, 2147483647] Suggestion: Set the value based on specifications and requirements.
loadBalancerId	Yes	ID of the belonged ULB Type: string Value Description: Indicates the ID generated after a ULB instance is created, for example, 8abbd7a9-c1f8-440d-96ff-376ee7382082. Value Constraint: The ID must be the ID of an existing ULB instance. Suggestion: You are advised to drag the object to the ULB.LoadBalancer and use the get_reference function to automatically generate the value. Alternatively, query the ULB instance ID on the ULB page and enter it accordingly.
port	Yes	Listening port Type: integer Value Description: [1, 65535] Value Constraint: Supports [1, 65535] Suggestion: Set the value based on specifications and requirements.
name	No	Listener name Type: string Value Description: Supports customization. Value Constraint: The value supports a maximum of 64 characters and can only contain digits, letters, underscores (_), and hyphens (-). Suggestion: Customize the value.

Relationships Between Elements

**Table 2** Relationship description
Description	Target
ContainedIn	ULB.LoadBalancer

Return Value

Property	Type	Description
refName	string	Listener instance name
refID	string	Listener instance ID

Blueprint Example

tosca_definitions_version: huaweicloud_tosca_version_1_0 
 inputs: 
   listener_protocol: 
     description: Listening protocol 
     label: '' 
   listener_port: 
     description: Listening port 
     label: '' 
   listener_loadBalancerId: 
     description: ID of the belonged ULB 
     label: '' 
 node_templates: 
   listener: 
     type: HuaweiCloud.ULB.Listener 
     properties: 
       protocol: 
         get_input: listener_protocol 
       port: 
         get_input: listener_port 
       loadBalancerId: 
         get_input: listener_loadBalancerId

Parent topic: List of Elements

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