Help Center/ Resource Formation Service/ API Reference/ API/ Stacks/ Obtaining a Stack Template

Updated on 2024-12-12 GMT+08:00

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Obtaining a Stack Template

Function

GetStackTemplate

This API obtains the template used for the current deployment if the stack is in the final state.

Note:

When a stack is in a non-final state (ending with IN_PROGRESS), the stack is in the transition phase. This API obtains the template used for the last deployment of the stack.

Only when the stack is in the final state (ending with COMPLETE or FAILED), this API obtains the template used for the current deployment. CREATION_COMPLETE is an exception because there is no template yet and 404 is returned, indicating that the template does not exist.

The non-final states may include:

DEPLOYMENT_IN_PROGRESS
ROLLBACK_IN_PROGRESS
DELETION_IN_PROGRESS

The final states may include:

CREATION_COMPLETE (an empty stack has been created)
DEPLOYMENT_FAILED
DEPLOYMENT_COMPLETE
ROLLBACK_FAILED
ROLLBACK_COMPLETE
DELETION_FAILED

If the template is successfully obtained, the template download link (OBS presigned URL, valid for 5 minutes) is returned in temporary redirection mode. Most clients automatically redirect and download the template.

If automatic redirection is not performed, refer to the HTTP redirection rule and manually download the template.

URI

GET /v1/{project_id}/stacks/{stack_name}/templates

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	A project ID is obtained by calling an API or from the console. Obtaining a Project ID
stack_name	Yes	String	A stack name is unique within its domain (domain_id), region, and project (project_id). It is case-sensitive and starts with a letter. Only letters, digits, underscores (_), and hyphens (-) are allowed.

**Table 2** Query Parameters
Parameter	Mandatory	Type	Description
stack_id	No	String	Unique stack ID. It is a UUID generated by RFS when a stack is created. Stack names are unique at one specific time, so you can create a stack named HelloWorld and another stack with the same name after deleting the first one. For parallel development, team members may want to ensure that they are operating the stack they created, not one with the same name created by other members after deleting the previous one. To avoid this mismatch, check the ID, since RFS ensures each stack has a unique ID that does not change with updates. If the stack_id value differs from the current stack ID, 400 is returned.
access_control_source_ips	No	Array of strings	The array of source ips that are allowed to access the stack template, the source ip must be an IPv4 address with a subnet mask in CIDR notation.
access_control_source_vpc_ids	No	Array of strings	The array of source vpc ids that are allowed to access the stack template, the source vpc id should only contain lowercase letters, digits, and hyphens (-).

Request Parameters

**Table 3** Request header parameters
Parameter	Mandatory	Type	Description
Client-Request-Id	Yes	String	A unique request ID is specified by a user to locate a request. UUID is recommended.

Response Parameters

Status code: 307

**Table 4** Response header parameters
Parameter	Type	Description
Location	String	HTTP redirect header. The client can use this header to redirect to a template download link (OBS presigned URL, valid for 5 minutes).

Status code: 400

**Table 5** Response body parameters
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.
encoded_authorization_message	String	The message contains information about unauthorized requests.
details	Array of Detail objects	Detailed error messages returned by service when permission is denied.

**Table 6** Detail
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.

Status code: 401

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.
encoded_authorization_message	String	The message contains information about unauthorized requests.
details	Array of Detail objects	Detailed error messages returned by service when permission is denied.

**Table 8** Detail
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.

Status code: 403

**Table 9** Response body parameters
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.
encoded_authorization_message	String	The message contains information about unauthorized requests.
details	Array of Detail objects	Detailed error messages returned by service when permission is denied.

**Table 10** Detail
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.

Status code: 404

**Table 11** Response body parameters
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.
encoded_authorization_message	String	The message contains information about unauthorized requests.
details	Array of Detail objects	Detailed error messages returned by service when permission is denied.

**Table 12** Detail
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.

Status code: 429

**Table 13** Response body parameters
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.
encoded_authorization_message	String	The message contains information about unauthorized requests.
details	Array of Detail objects	Detailed error messages returned by service when permission is denied.

**Table 14** Detail
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.

Status code: 500

**Table 15** Response body parameters
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.
encoded_authorization_message	String	The message contains information about unauthorized requests.
details	Array of Detail objects	Detailed error messages returned by service when permission is denied.

**Table 16** Detail
Parameter	Type	Description
error_code	String	Response code.
error_msg	String	Response message.

Example Requests

Obtain a stack template.

GET https://{endpoint}/v1/ba2b9930c977f71edaeaa3a5e96a8ff1/stacks/my_hello_world_stack/templates

Obtain a stack template and check whether the stack ID matches the current stack.

GET https://{endpoint}/v1/ba2b9930c977f71edaeaa3a5e96a8ff1/stacks/my_hello_world_stack/templates?stack_id=ea6a4f0e-ee8a-494e-b12a-8be4a1e65af2

Obtain a stack template and provide access_control_source_ips to control the source ips that are allowed to access the stack template.

GET https://{endpoint}/v1/ba2b9930c977f71edaeaa3a5e96a8ff1/stacks/my_hello_world_stack/templates?access_control_source_ips=100.11.5.100/24&access_control_source_ips=100.22.5.100/24

Obtain a stack template and provide access_control_source_vpc_ids to control the source vpc ids that are allowed to access the stack template.

GET https://{endpoint}/v1/ba2b9930c977f71edaeaa3a5e96a8ff1/stacks/my_hello_world_stack/templates?access_control_source_vpc_ids=d42a8768-ad3c-4bca-91t8-53870f3402a9&access_control_source_vpc_ids=d42a8768-ad3c-4bca-91t8-53870f3402a8

Example Responses

None

Status Codes

Status Code	Description
307	Stack template obtained. Temporary redirect.
400	Invalid request.
401	Authentication failed.
403	The user does not have the permission to call this API.
404	The stack or template does not exist.
429	Too frequent requests.
500	Internal server error.