Avi Load Balancer Load Balancing as a Service のプロビジョニング

クラウド管理者は、VMware Avi Load Balancer リソースを活用してインフラストラクチャを構築できます。割り当てヘルパーを使用して、Avi Load Balancer リソースの割り当てロジックを提供することもできます。

開始する前に

テンプレートの例から作業を開始する前に、Automation Assembler で Avi Load Balancer クラウド アカウントを作成し、プロジェクトを作成して、クラウド ゾーンを追加する必要があります。手順については、VMware Avi Load Balancer クラウド アカウントの作成を参照してください。

シンプルな LBaaS テンプレート

このサンプル テンプレートは、最小限の入力で仮想サービス、プール、および仮想 IP リソースを作成する方法を示しています。

この例で使用されるすべての Avi Load Balancer リソースは、Avi Load Balancer コントローラを参照する Avi Load Balancer 構造を参照します。

このテンプレートではマシンやサーバはプロビジョニングされません。サーバのリストを取得して、継続的に更新できます。

テンプレートのデフォルトは空のプールですが、実際の IP アドレスを入力できるようにフォームと入力が設定され、通常のプールが作成されます。

formatVersion: 1
name: ALB - LBaaS Demo - Simple
version: 1
inputs:
  port:
    type: integer
    title: Port
    description: Traffic sent to servers will use this destination server port unless overridden by the server's specific port attribute.
    default: 80
  servers:
    type: array
    title: Servers
    description: The pool directs load balanced traffic to this list of destination servers. The servers can be configured by IP address, name, network or via IP Address Group. Leaving 0.0.0.0 will result in an empty pool being created.
    items:
      type: string
    minItems: 0
    default:
      - 0.0.0.0
resources:
  VIP:
    type: Idem.AVILB.APPLICATIONS.VS_VIP
    properties:
      name: vip-${uuid()}
      account: avi-account
      description: Managed by Aria Automation
      vip:
        - vip_id: 0
          auto_allocate_ip: true
          ipam_network_subnet:
            network_ref: VMNetwork-PortGroup
  VirtualService:
    type: Idem.AVILB.APPLICATIONS.VIRTUAL_SERVICE
    properties:
      name: vs-${uuid()}
      account: avi-account
      description: Managed by Aria Automation
      services:
        - port: ${input.port}
      pool_ref: ${resource.Pool.name}
      vsvip_ref: ${resource.VIP.name}
  Pool:
    type: Idem.AVILB.APPLICATIONS.POOL
    properties:
      name: pool-${uuid()}
      account: avi-account
      description: Managed by Aria Automation
      default_server_port: ${input.port}
      servers: '${input.servers[0] == "0.0.0.0" ? null :map_by(input.servers, address => {"ip": {"addr": address, "type" : "V4"}})}'

高度な LBaaS テンプレート

このサンプル テンプレートは、既存のネットワークに接続される仮想サービス、プール、および仮想 IP リソースをクラウド ゾーン割り当てヘルパーとともに作成する方法を示しています。さらに、プールがシステム HTTP 健全性モニターで構成されます。

formatVersion: 1
name: ALB - LBaaS Demo
version: 1
inputs:
  env:
    type: string
    title: Environment
    description: Select Dev or Prod ALB environment
    default: env:dev
    oneOf:
      - title: Dev ALB
        const: env:dev
      - title: Prod ALB
        const: env:prod
  port:
    type: integer
    title: Port
    description: Input the server ip's to add to the pool.
    default: 80
  servers:
    type: array
    title: Servers
    description: Input the server ip's to add to the pool. Leaving 0.0.0.0 will result in an empty pool being created.
    items:
      type: string
    minItems: 0
    default:
      - 0.0.0.0
resources:
  Allocations_CloudZone_1:
    type: Allocations.CloudZone
    properties:
      accountType: avilb
      constraints:
        - tag: ${input.env}
  VIP:
    type: Idem.AVILB.APPLICATIONS.VS_VIP
    properties:
      name: vip-${uuid()}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      description: Managed by Aria Automation
      vip:
        - vip_id: 0
          auto_allocate_ip: true
          ipam_network_subnet:
            network_ref: ${resource.Cloud_vSphere_Network_1.resourceName}
  VirtualService:
    type: Idem.AVILB.APPLICATIONS.VIRTUAL_SERVICE
    properties:
      name: vs-${uuid()}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      description: Managed by Aria Automation
      services:
        - port: ${input.port}
      pool_ref: ${resource.Pool.name}
      vsvip_ref: ${resource.VIP.name}
  Pool:
    type: Idem.AVILB.APPLICATIONS.POOL
    properties:
      name: pool-${uuid()}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      description: Managed by Aria Automation
      default_server_port: ${input.port}
      servers: '${input.servers[0] == "0.0.0.0" ? null :map_by(input.servers, address => {"ip": {"addr": address, "type" : "V4"}})}'
      health_monitor_refs:
        - System-HTTP
  Cloud_vSphere_Network_1:
    type: Cloud.vSphere.Network
    properties:
      networkType: existing
      constraints:
        - tag: net:vm

シンプルな Web サーバ テンプレート

このサンプル テンプレートは、既存のネットワークに接続される仮想サービス、プール、仮想 IP アドレス、および 2 つの Web サーバ仮想マシン リソースを作成する方法を示しています。プールは、ラウンド ロビン アルゴリズムを使用してポート 80 を監視するように構成されます。

formatVersion: 1
name: ALB - Web Servers
version: 1
inputs:
  env:
    type: string
    title: Environment
    description: Select Dev or Prod ALB environment
    default: env:dev
    oneOf:
      - title: Dev ALB
        const: env:dev
      - title: Prod ALB
        const: env:prod
  clusterSize:
    type: string
    enum:
      - small
      - medium
      - large
    default: small
    title: Web Server Cluster Size
    description: Web Server Cluster Size. Small creates one web server and no ALB. Medium creates 2 web servers and a ALB. Large creates 4 web servers and a ALB.
  username:
    type: string
    title: Username
    default: demouser
  password:
    type: string
    title: Password
    encrypted: false
    default: VMware1!
  port:
    type: integer
    title: Port
    default: 80
  health_monitor:
    type: array
    items:
      type: string
    title: Health Monitors
    default:
      - System-HTTP
    minItems: 1
    maxItems: 10
  lb_algorithm:
    type: string
    title: Load Balancer Algorithm
    description: The load balancing algorithm will pick a server within the pool's list of available servers.
    readOnly: false
    default: LB_ALGORITHM_LEAST_CONNECTIONS
    oneOf:
      - title: Least Connections
        const: LB_ALGORITHM_LEAST_CONNECTIONS
      - title: Round Robin
        const: LB_ALGORITHM_ROUND_ROBIN
      - title: Fastest Response
        const: LB_ALGORITHM_FASTEST_RESPONSE
      - title: Consistent Hash
        const: LB_ALGORITHM_CONSISTENT_HASH
      - title: Least Load
        const: LB_ALGORITHM_LEAST_LOAD
      - title: Fewest Servers
        const: LB_ALGORITHM_FEWEST_SERVERS
      - title: Random
        const: LB_ALGORITHM_RANDOM
      - title: Fewest Tasks
        const: LB_ALGORITHM_FEWEST_TASKS
      - title: Core Affinity
        const: LB_ALGORITHM_CORE_AFFINITY
resources:
  ALB_HEALTH_MONITOR:
    type: Idem.AVILB.PROFILES.HEALTH_MONITOR
    properties:
      name: web-health-${uuid()}
      description: Managed by Aria Assembler
      type: ${input.health_monitor}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
  Allocations_CloudZone_1:
    type: Allocations.CloudZone
    properties:
      accountType: avilb
      constraints:
        - tag: ${input.env}
  ALB_APPLICATION_PERSISTENCE_PROFILE:
    type: Idem.AVILB.PROFILES.APPLICATION_PERSISTENCE_PROFILE
    properties:
      name: apache-appprofile-${uuid()}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      description: Managed by Aria Automation
      persistence_type: PERSISTENCE_TYPE_CLIENT_IP_ADDRESS
      server_hm_down_recovery: HM_DOWN_PICK_NEW_SERVER
      ip_persistence_profile:
        ip_mask: 24
        ip_persistent_timeout: 20
  SecurityGroup:
    type: Cloud.SecurityGroup
    properties:
      constraints:
        - tag: ${input.env}
      securityGroupType: existing
  VIP:
    type: Idem.AVILB.APPLICATIONS.VS_VIP
    properties:
      name: web-vip-${uuid()}
      description: Managed by Aria Automation
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      vip:
        - vip_id: 0
          auto_allocate_ip: true
          ipam_network_subnet:
            network_ref: ${resource.Cloud_vSphere_Network_1.resourceName}
  VirtualService:
    type: Idem.AVILB.APPLICATIONS.VIRTUAL_SERVICE
    properties:
      name: web-vs-${uuid()}
      description: Managed by Aria Assembler
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      cloud_type: CLOUD_VCENTER
      services:
        - port: ${input.port}
      vsvip_ref: ${resource.VIP[0].name}
      pool_ref: ${resource.Pool[0].name}
  Pool:
    type: Idem.AVILB.APPLICATIONS.POOL
    properties:
      name: web-pool-${uuid()}
      description: Managed by Aria Automation
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      default_server_port: ${input.port}
      health_monitor_refs:
        - ${resource.ALB_HEALTH_MONITOR.name}
      lb_algorithm: ${input.lb_algorithm}
      application_persistence_profile_ref: ${resource.ALB_APPLICATION_PERSISTENCE_PROFILE.name}
      servers: '${map_by(resource.Web_Server[*].address, address => {"ip": {"addr": address, "type" : "V4"}})}'
  Web_Server:
    type: Cloud.vSphere.Machine
    properties:
      name: web
      count: 2
      flavor: small
      imageRef: https://cloud-images.ubuntu.com/releases/18.04/release/ubuntu-18.04-server-cloudimg-amd64.ova
      cloudConfig: |
        packages:
          - apache2
          - open-vm-tools

        runcmd:
          ### update the top of the web page to the web servers resource name
          - sed -i 's/Apache2 Ubuntu Default Page/${self.resourceName}/g' /var/www/html/index.html
          
          ### Restart services
          - systemctl reload apache2
          - systemctl restart apache2
          
          ### Log completion
          - echo 'Cloud-init is done!' >> /tmp/finished.txt
      networks:
        - network: ${resource.Cloud_vSphere_Network_1.id}
          securityGroups:
            - ${resource.SecurityGroup.id}
  Cloud_vSphere_Network_1:
    type: Cloud.vSphere.Network
    properties:
      networkType: existing
      constraints:
        - tag: net:vm

高度な Web サーバ テンプレート

このテンプレートは、既存のネットワークに接続される仮想サービス、プール、および仮想 IP リソースをクラウド ゾーン割り当てヘルパーとともに作成する方法を示しています。さらに、健全性モニターとアプリケーション パーシステンス プロファイルがプールで作成および構成されます。最後に、セキュリティ グループがタグによって列挙され、仮想マシンの Web サーバが追加されます。

formatVersion: 1
name: ALB - Web Servers
version: 1
inputs:
  env:
    type: string
    title: Environment
    description: Select Dev or Prod ALB environment
    default: env:dev
    oneOf:
      - title: Dev ALB
        const: env:dev
      - title: Prod ALB
        const: env:prod
  clusterSize:
    type: string
    enum:
      - small
      - medium
      - large
    default: small
    title: Web Server Cluster Size
    description: Web Server Cluster Size. Small creates one web server and no ALB. Medium creates 2 web servers and a ALB. Large creates 4 web servers and a ALB.
  username:
    type: string
    title: Username
    default: demouser
  password:
    type: string
    title: Password
    encrypted: false
    default: VMware1!
  port:
    type: integer
    title: Port
    default: 80
  health_monitor:
    type: array
    items:
      type: string
    title: Health Monitors
    default:
      - System-HTTP
    minItems: 1
    maxItems: 10
  lb_algorithm:
    type: string
    title: Load Balancer Algorithm
    description: The load balancing algorithm will pick a server within the pool's list of available servers.
    readOnly: false
    default: LB_ALGORITHM_LEAST_CONNECTIONS
    oneOf:
      - title: Least Connections
        const: LB_ALGORITHM_LEAST_CONNECTIONS
      - title: Round Robin
        const: LB_ALGORITHM_ROUND_ROBIN
      - title: Fastest Response
        const: LB_ALGORITHM_FASTEST_RESPONSE
      - title: Consistent Hash
        const: LB_ALGORITHM_CONSISTENT_HASH
      - title: Least Load
        const: LB_ALGORITHM_LEAST_LOAD
      - title: Fewest Servers
        const: LB_ALGORITHM_FEWEST_SERVERS
      - title: Random
        const: LB_ALGORITHM_RANDOM
      - title: Fewest Tasks
        const: LB_ALGORITHM_FEWEST_TASKS
      - title: Core Affinity
        const: LB_ALGORITHM_CORE_AFFINITY
resources:
  ALB_HEALTH_MONITOR:
    type: Idem.AVILB.PROFILES.HEALTH_MONITOR
    properties:
      name: web-health-${uuid()}
      description: Managed by Aria Assembler
      type: ${input.health_monitor}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
  Allocations_CloudZone_1:
    type: Allocations.CloudZone
    properties:
      accountType: avilb
      constraints:
        - tag: ${input.env}
  ALB_APPLICATION_PERSISTENCE_PROFILE:
    type: Idem.AVILB.PROFILES.APPLICATION_PERSISTENCE_PROFILE
    properties:
      name: apache-appprofile-${uuid()}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      description: Managed by Aria Automation
      persistence_type: PERSISTENCE_TYPE_CLIENT_IP_ADDRESS
      server_hm_down_recovery: HM_DOWN_PICK_NEW_SERVER
      ip_persistence_profile:
        ip_mask: 24
        ip_persistent_timeout: 20
  SecurityGroup:
    type: Cloud.SecurityGroup
    properties:
      constraints:
        - tag: ${input.env}
      securityGroupType: existing
  VIP:
    type: Idem.AVILB.APPLICATIONS.VS_VIP
    properties:
      name: web-vip-${uuid()}
      description: Managed by Aria Automation
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      vip:
        - vip_id: 0
          auto_allocate_ip: true
          ipam_network_subnet:
            network_ref: ${resource.Cloud_vSphere_Network_1.resourceName}
  VirtualService:
    type: Idem.AVILB.APPLICATIONS.VIRTUAL_SERVICE
    properties:
      name: web-vs-${uuid()}
      description: Managed by Aria Assembler
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      cloud_type: CLOUD_VCENTER
      services:
        - port: ${input.port}
      vsvip_ref: ${resource.VIP[0].name}
      pool_ref: ${resource.Pool[0].name}
  Pool:
    type: Idem.AVILB.APPLICATIONS.POOL
    properties:
      name: web-pool-${uuid()}
      description: Managed by Aria Automation
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      default_server_port: ${input.port}
      health_monitor_refs:
        - ${resource.ALB_HEALTH_MONITOR.name}
      lb_algorithm: ${input.lb_algorithm}
      application_persistence_profile_ref: ${resource.ALB_APPLICATION_PERSISTENCE_PROFILE.name}
      servers: '${map_by(resource.Web_Server[*].address, address => {"ip": {"addr": address, "type" : "V4"}})}'
  Web_Server:
    type: Cloud.vSphere.Machine
    properties:
      name: web
      count: 2
      flavor: small
      imageRef: https://cloud-images.ubuntu.com/releases/18.04/release/ubuntu-18.04-server-cloudimg-amd64.ova
      cloudConfig: |
        packages:
          - apache2
          - open-vm-tools

        runcmd:
          ### update the top of the web page to the web servers resource name
          - sed -i 's/Apache2 Ubuntu Default Page/${self.resourceName}/g' /var/www/html/index.html
          
          ### Restart services
          - systemctl reload apache2
          - systemctl restart apache2
          
          ### Log completion
          - echo 'Cloud-init is done!' >> /tmp/finished.txt
      networks:
        - network: ${resource.Cloud_vSphere_Network_1.id}
          securityGroups:
            - ${resource.SecurityGroup.id}
  Cloud_vSphere_Network_1:
    type: Cloud.vSphere.Network
    properties:
      networkType: existing
      constraints:
        - tag: net:vm