Creating a PTR Record for an EIP

Function

This API is used to create a PTR record for an EIP.

Calling Method

For details, see Calling APIs.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.

If you are using identity policy-based authorization, the following identity policy-based permissions are required.

Action	Access Level	Resource Type (*: required)	Condition Key	Alias	Dependencies
dns:ptr:create	Write	ptr *	-	dns:ptr:set	dns:tag:set eip:publicIps:get dns:quota:list
dns:ptr:create	Write	-	g:RequestTag/<tag-key> g:TagKeys g:EnterpriseProjectId	dns:ptr:set	dns:tag:set eip:publicIps:get dns:quota:list

URI

PATCH /v2/reverse/floatingips/{region}:{floatingip_id}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
region	Yes	String	Region of the tenant.
floatingip_id	Yes	String	EIP ID.

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Definition The user token. The token can be obtained by calling an IAM API. The value of X-Subject-Token in the response header is the user token. For details about how to obtain a user token, seeObtaining a User Token. Constraints N/A Range N/A Default Value N/A

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
ptrdname	Yes	String	The zone of the PTR record
description	No	String	Descriptions about the PTR record
ttl	No	Integer	PTR record caching duration (in seconds) on a local DNS server. The longer the duration is, the slower the update takes effect. The value ranges from 1 to 2147483647.
enterprise_project_id	No	String	ID of the enterprise project associated with the PTR record. The value contains a maximum of 36 characters. The default value is 0.
tags	No	Array of tag objects	Resource tag.

**Table 4** tag
Parameter	Mandatory	Type	Description
key	Yes	String	Definition The tag key. Range Cannot be left blank. Must be unique for each resource. Contains up to 128 characters. Cannot start or end with a space, or start with *sys*. Only letters, digits, spaces, and the following special characters are allowed: _.:=+-@
value	No	String	Definition The tag value. Range Can be left blank. Can contain a maximum of 255 characters. Only letters, digits, spaces, and the following special characters are allowed: _.:/=+-@

Response Parameters

Status code: 202

**Table 5** Response body parameters
Parameter	Type	Description
id	String	PTR record ID, which is in {region}:{floatingip_id} format
ptrdname	String	The zone of the PTR record
description	String	Descriptions about the PTR record
ttl	Integer	PTR record caching duration (in seconds) on a local DNS server. The longer the duration is, the slower the update takes effect.
address	String	EIP address.
status	String	Resource status.
action	String	Requested operation on the resource. The value can be CREATE, UPDATE, DELETE, or NONE. NONE indicates that no operation will be performed.
links	pageLink object	Definition The link to the current page or other pages. When a response is broken into pages, a next link is provided to point to the next page. Range N/A
enterprise_project_id	String	ID of the enterprise project associated with the PTR record. The value contains a maximum of 36 characters.

**Table 6** pageLink
Parameter	Type	Description
self	String	Definition The link to the current page. Range N/A
next	String	Definition The link to the next page. Range N/A

Example Requests

Creating a PTR record for an EIP and setting its TTL to 300s

PATCH https://{endpoint}/v2/reverse/floatingips/{region}:{floatingip_id}

{
  "ptrdname" : "www.example.com",
  "description" : "Description for this PTR record",
  "ttl" : 300,
  "tags" : [ {
    "key" : "key1",
    "value" : "value1"
  } ]
}

Example Responses

Status code: 202

Request accepted

{
  "id" : "region_id:c5504932-bf23-4171-b655-b87a6bc59334",
  "ptrdname" : "www.example.com.",
  "description" : "Description for this PTR record",
  "address" : "10.154.52.138",
  "action" : "CREATE",
  "ttl" : 300,
  "status" : "PENDING_CREATE",
  "links" : {
    "self" : "https://Endpoint/v2/reverse/floatingips/region_id:c5504932-bf23-4171-b655-b87a6bc59334"
  },
  "enterprise_project_id" : 0
}