第 2 章 为自动扩展配置和部署 overcloud

流程

1. 以 stack 用户身份登录 undercloud 主机。

2. 为自动扩展配置文件创建目录：

   $ mkdir -p $HOME/templates/autoscaling/

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3. 为服务自动扩展所需的定义创建资源 registry 文件：

   $ cat <<EOF > $HOME/templates/autoscaling/resources-autoscaling.yaml
   resource_registry:
     OS::TripleO::Services::AodhApi: /usr/share/openstack-tripleo-heat-templates/deployment/aodh/aodh-api-container-puppet.yaml
     OS::TripleO::Services::AodhEvaluator: /usr/share/openstack-tripleo-heat-templates/deployment/aodh/aodh-evaluator-container-puppet.yaml
     OS::TripleO::Services::AodhListener: /usr/share/openstack-tripleo-heat-templates/deployment/aodh/aodh-listener-container-puppet.yaml
     OS::TripleO::Services::AodhNotifier: /usr/share/openstack-tripleo-heat-templates/deployment/aodh/aodh-notifier-container-puppet.yaml
     OS::TripleO::Services::CeilometerAgentCentral: /usr/share/openstack-tripleo-heat-templates/deployment/ceilometer/ceilometer-agent-central-container-puppet.yaml
     OS::TripleO::Services::CeilometerAgentNotification: /usr/share/openstack-tripleo-heat-templates/deployment/ceilometer/ceilometer-agent-notification-container-puppet.yaml
     OS::TripleO::Services::ComputeCeilometerAgent: /usr/share/openstack-tripleo-heat-templates/deployment/ceilometer/ceilometer-agent-compute-container-puppet.yaml
     OS::TripleO::Services::GnocchiApi: /usr/share/openstack-tripleo-heat-templates/deployment/gnocchi/gnocchi-api-container-puppet.yaml
     OS::TripleO::Services::GnocchiMetricd: /usr/share/openstack-tripleo-heat-templates/deployment/gnocchi/gnocchi-metricd-container-puppet.yaml
     OS::TripleO::Services::GnocchiStatsd: /usr/share/openstack-tripleo-heat-templates/deployment/gnocchi/gnocchi-statsd-container-puppet.yaml
     OS::TripleO::Services::HeatApi: /usr/share/openstack-tripleo-heat-templates/deployment/heat/heat-api-container-puppet.yaml
     OS::TripleO::Services::HeatApiCfn: /usr/share/openstack-tripleo-heat-templates/deployment/heat/heat-api-cfn-container-puppet.yaml
     OS::TripleO::Services::HeatApiCloudwatch: /usr/share/openstack-tripleo-heat-templates/deployment/heat/heat-api-cloudwatch-disabled-puppet.yaml
     OS::TripleO::Services::HeatEngine: /usr/share/openstack-tripleo-heat-templates/deployment/heat/heat-engine-container-puppet.yaml
     OS::TripleO::Services::Redis: /usr/share/openstack-tripleo-heat-templates/deployment/database/redis-container-puppet.yaml
   EOF

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4. 创建环境模板来配置自动扩展所需的服务：

   cat <<EOF > $HOME/templates/autoscaling/parameters-autoscaling.yaml
   parameter_defaults:
     NotificationDriver: 'messagingv2'
     GnocchiDebug: false
     CeilometerEnableGnocchi: true
     ManagePipeline: true
     ManageEventPipeline: true
   
     EventPipelinePublishers:
       - gnocchi://?archive_policy=generic
     PipelinePublishers:
       - gnocchi://?archive_policy=generic
   
     ManagePolling: true
     ExtraConfig:
       ceilometer::agent::polling::polling_interval: 60
   EOF

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   如果您使用 Red Hat Ceph Storage 作为时间序列数据库服务的数据存储后端，请将以下参数添加到您的 parameters-autoscaling.yaml 文件中：

   parameter_defaults:
     GnocchiRbdPoolName: 'metrics'
     GnocchiBackend: 'rbd'

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   您必须先创建定义的归档策略 generic，然后才能存储指标。您可以在部署后定义此归档策略。如需更多信息，请参阅 第 3.1 节 “为自动扩展创建通用归档策略”。

5. 设置 polling_interval 参数，如 60 秒。polling_interval 参数的值必须与您在创建归档策略时定义的 gnocchi granularity 值匹配。如需更多信息，请参阅 第 3.1 节 “为自动扩展创建通用归档策略”。
6. 部署 overcloud。如需更多信息，请参阅 第 2.2 节 “部署 overcloud 以自动扩展”。