3.4. 创建用于自动扩展的堆栈部署

流程

1. 创建堆栈：

   $ openstack stack create \
     -t $HOME/templates/autoscaling/vnf/template.yaml \
     -e $HOME/templates/autoscaling/vnf/resources.yaml \
     vnf

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验证

1. 验证堆栈是否已创建成功：

   $ openstack stack show vnf -c id -c stack_status
   +--------------+--------------------------------------+
   | Field        | Value                                |
   +--------------+--------------------------------------+
   | id           | cb082cbd-535e-4779-84b0-98925e103f5e |
   | stack_status | CREATE_COMPLETE                      |
   +--------------+--------------------------------------+

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2. 验证堆栈资源是否已创建，包括警报、扩展策略和自动扩展组：

   $ export STACK_ID=$(openstack stack show vnf -c id -f value)

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   $ openstack stack resource list $STACK_ID
   +------------------+--------------------------------------+----------------------------------------------+-----------------+----------------------+
   | resource_name    | physical_resource_id                 | resource_type                                | resource_status | updated_time         |
   +------------------+--------------------------------------+----------------------------------------------+-----------------+----------------------+
   | cpu_alarm_high   | d72d2e0d-1888-4f89-b888-02174c48e463 | OS::Aodh::GnocchiAggregationByResourcesAlarm | CREATE_COMPLETE | 2022-10-06T23:08:37Z |
   | scaleup_policy   | 1c4446b7242e479090bef4b8075df9d4     | OS::Heat::ScalingPolicy                      | CREATE_COMPLETE | 2022-10-06T23:08:37Z |
   | cpu_alarm_low    | b9c04ef4-8b57-4730-af03-1a71c3885914 | OS::Aodh::GnocchiAggregationByResourcesAlarm | CREATE_COMPLETE | 2022-10-06T23:08:37Z |
   | scaledown_policy | a5af7faf5a1344849c3425cb2c5f18db     | OS::Heat::ScalingPolicy                      | CREATE_COMPLETE | 2022-10-06T23:08:37Z |
   | scaleup_group    | 9609f208-6d50-4b8f-836e-b0222dc1e0b1 | OS::Heat::AutoScalingGroup                   | CREATE_COMPLETE | 2022-10-06T23:08:37Z |
   +------------------+--------------------------------------+----------------------------------------------+-----------------+----------------------+

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3. 创建堆栈验证实例是否已启动：

   $ openstack server list --long | grep $STACK_ID
   
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7 | vn-dvaxcqb-6bqh2qd2fpif-hicmkm5dzjug-vnf-ywrydc5wqjjc | ACTIVE | None       | Running     | private=192.168.100.61, 192.168.25.99 | fedora36   | a6aa7b11-1b99-4c62-a43b-d0b7c77f4b72 | m1.small    | 5cd46fec-50c2-43d5-89e8-ed3fa7660852 | nova              | standalone-80.localdomain | metering.server_group='cb082cbd-535e-4779-84b0-98925e103f5e' |

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4. 验证为堆栈创建了警报：

   1. 列出警报 ID。警报的状态可能在一段时间内处于 数据不足 状态。最少的时间是数据收集和数据存储粒度设置的轮询间隔：

      $ openstack alarm list
      +--------------------------------------+--------------------------------------------+---------------------------------+-------+----------+---------+
      | alarm_id                             | type                                       | name                            | state | severity | enabled |
      +--------------------------------------+--------------------------------------------+---------------------------------+-------+----------+---------+
      | b9c04ef4-8b57-4730-af03-1a71c3885914 | gnocchi_aggregation_by_resources_threshold | vnf-cpu_alarm_low-pve5eal6ykst  | alarm | low      | True    |
      | d72d2e0d-1888-4f89-b888-02174c48e463 | gnocchi_aggregation_by_resources_threshold | vnf-cpu_alarm_high-5xx7qvfsurxe | ok    | low      | True    |
      +--------------------------------------+--------------------------------------------+---------------------------------+-------+----------+---------+

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   2. 列出堆栈的资源，并记录下 cpu_alarm_high 和 cpu_alarm_low 资源的 physical_resource_id 值。

      $ openstack stack resource list $STACK_ID
      +------------------+--------------------------------------+----------------------------------------------+-----------------+----------------------+
      | resource_name    | physical_resource_id                 | resource_type                                | resource_status | updated_time         |
      +------------------+--------------------------------------+----------------------------------------------+-----------------+----------------------+
      | cpu_alarm_high   | d72d2e0d-1888-4f89-b888-02174c48e463 | OS::Aodh::GnocchiAggregationByResourcesAlarm | CREATE_COMPLETE | 2022-10-06T23:08:37Z |
      | scaleup_policy   | 1c4446b7242e479090bef4b8075df9d4     | OS::Heat::ScalingPolicy                      | CREATE_COMPLETE | 2022-10-06T23:08:37Z |
      | cpu_alarm_low    | b9c04ef4-8b57-4730-af03-1a71c3885914 | OS::Aodh::GnocchiAggregationByResourcesAlarm | CREATE_COMPLETE | 2022-10-06T23:08:37Z |
      | scaledown_policy | a5af7faf5a1344849c3425cb2c5f18db     | OS::Heat::ScalingPolicy                      | CREATE_COMPLETE | 2022-10-06T23:08:37Z |
      | scaleup_group    | 9609f208-6d50-4b8f-836e-b0222dc1e0b1 | OS::Heat::AutoScalingGroup                   | CREATE_COMPLETE | 2022-10-06T23:08:37Z |
      +------------------+--------------------------------------+----------------------------------------------+-----------------+----------------------+

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      physical_resource_id 的值必须与 openstack alarm list 命令的输出中的 alarm_id 匹配。

5. 验证堆栈是否存在指标资源。将 server_group 查询的值设置为堆栈 ID：

   $ openstack metric resource search --sort-column launched_at -c id -c display_name -c launched_at -c deleted_at --type instance server_group="$STACK_ID"
   +--------------------------------------+-------------------------------------------------------+----------------------------------+------------+
   | id                                   | display_name                                          | launched_at                      | deleted_at |
   +--------------------------------------+-------------------------------------------------------+----------------------------------+------------+
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7 | vn-dvaxcqb-6bqh2qd2fpif-hicmkm5dzjug-vnf-ywrydc5wqjjc | 2022-10-06T23:09:28.496566+00:00 | None       |
   +--------------------------------------+-------------------------------------------------------+----------------------------------+------------+

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6. 验证通过堆栈创建的实例资源是否存在测量：

   $ openstack metric aggregates --resource-type instance --sort-column timestamp '(metric cpu rate:mean)' server_group="$STACK_ID"
   +----------------------------------------------------+---------------------------+-------------+---------------+
   | name                                               | timestamp                 | granularity |         value |
   +----------------------------------------------------+---------------------------+-------------+---------------+
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7/cpu/rate:mean | 2022-10-06T23:11:00+00:00 |        60.0 | 69470000000.0 |
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7/cpu/rate:mean | 2022-10-06T23:12:00+00:00 |        60.0 | 81060000000.0 |
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7/cpu/rate:mean | 2022-10-06T23:13:00+00:00 |        60.0 | 82840000000.0 |
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7/cpu/rate:mean | 2022-10-06T23:14:00+00:00 |        60.0 | 66660000000.0 |
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7/cpu/rate:mean | 2022-10-06T23:15:00+00:00 |        60.0 |  7360000000.0 |
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7/cpu/rate:mean | 2022-10-06T23:16:00+00:00 |        60.0 |  3150000000.0 |
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7/cpu/rate:mean | 2022-10-06T23:17:00+00:00 |        60.0 |  2760000000.0 |
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7/cpu/rate:mean | 2022-10-06T23:18:00+00:00 |        60.0 |  3470000000.0 |
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7/cpu/rate:mean | 2022-10-06T23:19:00+00:00 |        60.0 |  2770000000.0 |
   | 62e1b27c-8d9d-44a5-a0f0-80e7e6d437c7/cpu/rate:mean | 2022-10-06T23:20:00+00:00 |        60.0 |  2700000000.0 |
   +----------------------------------------------------+---------------------------+-------------+---------------+

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