• Resource Template Service

rts
  1. Help Center
  2. Resource Template Service
  3. API Reference
  4. APIs
  5. Stack Management
  6. Previewing a Stack

Previewing a Stack

Function

This API is used to preview a stack.

URI

POST /v1/{project_id}/stacks/preview

For details about the parameters, see Table 1.

Table 1 Parameter description

Parameter

Type

Mandatory

Description

project_id

String

Yes

Specifies the project ID.

Request Parameter

Parameter

In

Type

Mandatory

Description

stack_name

body

String

Yes

Specifies the stack name.

  • The value can contain only uppercase letters, lowercase letters, digits, hyphens (-), periods (.), and underscores (_).
  • The value must start with an uppercase letter or a lowercase letter.
  • The value can contain 1 to 255 characters.

template_url

body

String

No

Specifies the template URL. You cannot select a template using the URL temporarily.

template

body

Dict

Yes

Specifies the template. The template content must use the YAML syntax.

files

body

Dict

No

Specifies the files referenced in the environment.

disable_rollback

body

Boolean

No

Specifies whether to perform a rollback when stack creation fails.

parameters

body

Dict

No

Specifies parameter information of the stack.

Response Parameter

Parameter

In

Type

Description

stack

body

Dict

Specifies the stack object.

stack structure information

Parameter

In

Type

Description

parent

body

String

Specifies the UUID of the parent stack (for a nested stack).

id

body

String

Specifies the stack UUID.

links

body

List <dict>

Specifies the stack URL list.

stack_name

body

String

Specifies the stack name.

description

body

String

Describes the stack.

template_description

body

String

Describes the template defined by the stack.

timeout_mins

body

Int

Specifies the timeout duration.

disable_rollback

body

Boolean

Specifies whether to perform a rollback when stack creation fails.

capabilities

body

List

Specifies the list of stack capacities.

creation_time

body

Date Time

Specifies the time when the stack was created.

notification_topics

body

List

Specifies the message notification list of the stack.

updated_time

body

Date Time

Specifies the last time when the stack was updated.

stack_owner

body

Sting

Specifies the name of the stack owner.

parameters

body

Dict

Specifies parameters defined by the stack.

resources

body

List <dict>

Specifies the stack resource list.

Request Example

POST /v1/95d02433133a4c0a87ba6967474a2ad3/stacks/preview
{
    "files": {},
    "disable_rollback": true,
    "parameters": {
        "flavor": "m1.heat"
    },
    "stack_name": "teststack",
    "template": {
        "heat_template_version": "2013-05-23",
        "description": "Simple template to test heat commands",
        "parameters": {
            "flavor": {
                "default": "m1.tiny",
                "type": "string"
            }
        },
        "resources": {
            "hello_world": {
                "type": "OS::Nova::Server",
                "properties": {
                    "key_name": "heat_key",
                    "flavor": {
                        "get_param": "flavor"
                    },
                    "image": "40be8d1a-3eb9-40de-8abd-43237517384f",
                    "user_data": "#!/bin/bash -xv\necho \"hello world\" &gt; /root/hello-world.txt\n"
                }
            }
        }
    },
    "timeout_mins": 60
}

Response Example

{
    "stack": {
        "capabilities": [],
        "creation_time": "2015-01-31T15:12:36Z",
        "description": "HOT template for Nova Server resource.\n",
        "disable_rollback": true,
        "id": "None",
        "links": [
            {
                "href": "http://x.x.x.x:8004/v1/6e18cc2bdbeb48a5basad2dc499f6804/stacks/test_stack/None",
                "rel": "self"
            }
        ],
        "notification_topics": [],
        "parameters": {
            "OS::project_id": "6e18cc2bdbeb48a5basad2dc499f6804",
            "OS::stack_id": "None",
            "OS::stack_name": "teststack",
            "admin_user": "cloud-user",
            "flavor": "m1.small",
            "image": "F20-cfg",
            "key_name": "heat_key",
            "server_name": "MyServer"
        },
        "parent": null,
        "resources": [
            {
                "attributes": {},
                "description": "",
                "metadata": {},
                "physical_resource_id": "",
                "properties": {
                    "description": "Ping and SSH",
                    "name": "the_sg",
                    "rules": [
                        {
                            "direction": "ingress",
                            "ethertype": "IPv4",
                            "port_range_max": null,
                            "port_range_min": null,
                            "protocol": "icmp",
                            "remote_group_id": null,
                            "remote_ip_prefix": null,
                            "remote_mode": "remote_ip_prefix"
                        },
                        {
                            "direction": "ingress",
                            "ethertype": "IPv4",
                            "port_range_max": 65535,
                            "port_range_min": 1,
                            "protocol": "tcp",
                            "remote_group_id": null,
                            "remote_ip_prefix": null,
                            "remote_mode": "remote_ip_prefix"
                        },
                        {
                            "direction": "ingress",
                            "ethertype": "IPv4",
                            "port_range_max": 65535,
                            "port_range_min": 1,
                            "protocol": "udp",
                            "remote_group_id": null,
                            "remote_ip_prefix": null,
                            "remote_mode": "remote_ip_prefix"
                        }
                    ]
                },
                "required_by": [
                    "server1"
                ],
                "resource_action": "INIT",
                "resource_identity": {
                    "path": "/resources/the_sg_res",
                    "stack_id": "None",
                    "stack_name": "teststack",
                    "tenant": "6e18cc2bdbeb48a5b3cad2dc499f6804"
                },
                "resource_name": "the_sg_res",
                "resource_status": "COMPLETE",
                "resource_status_reason": "",
                "resource_type": "OS::Neutron::SecurityGroup",
                "stack_identity": {
                    "path": "",
                    "stack_id": "None",
                    "stack_name": "teststack",
                    "tenant": "6e18cc2bdbeb48a5b3cad2dc499f6804"
                },
                "stack_name": "teststack",
                "updated_time": "2015-01-31T15:12:36Z"
            },
            {
                "attributes": {
                    "accessIPv4": "",
                    "accessIPv6": "",
                    "addresses": "",
                    "console_urls": "",
                    "first_address": "",
                    "instance_name": "",
                    "name": "MyServer",
                    "networks": "",
                    "show": ""
                },
                "description": "",
                "metadata": {},
                "physical_resource_id": "",
                "properties": {
                    "admin_pass": null,
                    "admin_user": "cloud-user",
                    "availability_zone": null,
                    "block_device_mapping": null,
                    "config_drive": null,
                    "diskConfig": null,
                    "flavor": "m1.small",
                    "flavor_update_policy": "RESIZE",
                    "image": "F20-cfg",
                    "image_update_policy": "REPLACE",
                    "key_name": "heat_key",
                    "metadata": {
                        "ha_stack": "None"
                    },
                    "name": "MyServer",
                    "networks": [
                        {
                            "fixed_ip": null,
                            "network": "private",
                            "port": null,
                            "uuid": null
                        }
                    ],
                    "personality": {},
                    "reservation_id": null,
                    "scheduler_hints": null,
                    "security_groups": [
                        "None"
                    ],
                    "software_config_transport": "POLL_SERVER_CFN",
                    "user_data": "",
                    "user_data_format": "HEAT_CFNTOOLS"
                },
                "required_by": [],
                "resource_action": "INIT",
                "resource_identity": {
                    "path": "/resources/hello_world",
                    "stack_id": "None",
                    "stack_name": "teststack",
                    "tenant": "6e18cc2bdbeb48a3433cad2dc499sdf32234"
                },
                "resource_name": "hello_world",
                "resource_status": "COMPLETE",
                "resource_status_reason": "",
                "resource_type": "OS::Nova::Server",
                "stack_identity": {
                    "path": "",
                    "stack_id": "None",
                    "stack_name": "teststack",
                    "tenant": "6e18cc2bdbeb48a3433cad2dc499sdf32234"
                },
                "stack_name": "teststack",
                "updated_time": "2015-01-31T15:12:36Z"
            }
        ],
        "stack_name": "test_stack",
        "stack_owner": "admin",
        "template_description": "HOT template for Nova Server resource.\n",
        "timeout_mins": null,
        "updated_time": null
    }
}

Return Code

Table 2 Normal return code

Return Code

Type

Description

201

Created

The resource has been created and is ready for use.

Table 3 Error return code

Return Code

Type

Description

400

Bad Request

The server failed to process the request.

401

Unauthorized

Authorization failed.

409

Conflict

The request could not be processed due to a conflict.

500

Internal Server Error

Failed to complete the request because of an internal service error.