创建和管理栈¶

用一个示例模板文件创建一个stack¶

• 如需创建一个stack, 可以参考模板文件`example template file <https://git.openstack.org/cgit/openstack/heat-templates>`__, 运行以下命令：

  $ openstack stack create --template server_console.yaml \
    --parameter "image=cirros" MYSTACK
  

  The --parameter values that you specify depend on the parameters that are defined in the template. If a website hosts the template file, you can also specify the URL with the --template parameter.

  该命令返回以下输出：

  +---------------------+----------------------------------------------------------------+
  | Field               | Value                                                          |
  +---------------------+----------------------------------------------------------------+
  | id                  | 70b9feca-8f99-418e-b2f1-cc38d61b3ffb                           |
  | stack_name          | MYSTACK                                                        |
  | description         | The heat template is used to demo the 'console_urls' attribute |
  |                     | of OS::Nova::Server.                                           |
  |                     |                                                                |
  | creation_time       | 2016-06-08T09:54:15                                            |
  | updated_time        | None                                                           |
  | stack_status        | CREATE_IN_PROGRESS                                             |
  | stack_status_reason |                                                                |
  +---------------------+----------------------------------------------------------------+
  

• You can also use the --dry-run option with the openstack stack create command to validate a template file without creating a stack from it.

  如果验证失败，将回复错误信息

得到一些关于栈的信息¶

要探索某个特定stack的状态和历史，可以运行多个命令。

• 要查看当前用户可见的stacks，运行以下命令：

  $ openstack stack list
  +--------------------------------------+------------+-----------------+---------------------+--------------+
  | ID                                   | Stack Name | Stack Status    | Creation Time       | Updated Time |
  +--------------------------------------+------------+-----------------+---------------------+--------------+
  | 70b9feca-8f99-418e-b2f1-cc38d61b3ffb | MYSTACK    | CREATE_COMPLETE | 2016-06-08T09:54:15 | None         |
  +--------------------------------------+------------+-----------------+---------------------+--------------+
  

• 通过以下命令来看哪些stack为当前用户可见

  $ openstack stack show MYSTACK
  

• 一个stack由一个资源集合组成。要列出资源和它们的状态，请运行以下命令：

  $ openstack stack resource list MYSTACK
  +---------------+--------------------------------------+------------------+-----------------+---------------------+
  | resource_name | physical_resource_id                 | resource_type    | resource_status | updated_time        |
  +---------------+--------------------------------------+------------------+-----------------+---------------------+
  | server        | 1b3a7c13-42be-4999-a2a1-8fbefd00062b | OS::Nova::Server | CREATE_COMPLETE | 2016-06-08T09:54:15 |
  +---------------+--------------------------------------+------------------+-----------------+---------------------+
  

• 要显示stack中特定资源的详细信息，请运行以下命令：

  $ openstack stack resource show MYSTACK server
  

• 一些与资源相关的元数据可以在资源的生命周期中被修改。通过运行以下命令显示元数据：

  $ openstack stack resource metadata MYSTACK server
  

• 在stack生命周期中生成一系列事件。要显示生命周期事件，请运行以下命令：

  $ openstack stack event list MYSTACK
  2016-06-08 09:54:15 [MYSTACK]: CREATE_IN_PROGRESS  Stack CREATE started
  2016-06-08 09:54:15 [server]: CREATE_IN_PROGRESS  state changed
  2016-06-08 09:54:41 [server]: CREATE_COMPLETE  state changed
  2016-06-08 09:54:41 [MYSTACK]: CREATE_COMPLETE  Stack CREATE completed successfully
  

• 要显示某个特定事件的详细信息，请运行以下命令：

  $ openstack stack event show MYSTACK server EVENT
  

更新堆栈¶

要用修改的模板文件来更新现有的stack，运行如下的命令：

$ openstack stack update --template server_console.yaml \
  --parameter "image=ubuntu" MYSTACK
+---------------------+----------------------------------------------------------------+
| Field               | Value                                                          |
+---------------------+----------------------------------------------------------------+
| id                  | 267a459a-a8cd-4d3e-b5a1-8c08e945764f                           |
| stack_name          | mystack                                                        |
| description         | The heat template is used to demo the 'console_urls' attribute |
|                     | of OS::Nova::Server.                                           |
|                     |                                                                |
| creation_time       | 2016-06-08T09:54:15                                            |
| updated_time        | 2016-06-08T10:41:18                                            |
| stack_status        | UPDATE_IN_PROGRESS                                             |
| stack_status_reason | Stack UPDATE started                                           |
+---------------------+----------------------------------------------------------------+

有些资源在原地更新，而其他的是被新资源替代。