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本繁體中文版使用機器翻譯，譯文僅供參考，若與英文版本牴觸，應以英文版本為準。

安裝Seesaww負載平衡器

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本頁列出SEETAW託管負載平衡器的安裝與組態指示。

Seesaw是安裝在VMware環境Anthos叢集（從1.6版到1.10版）中的預設託管網路負載平衡器。

安裝SEETAW負載平衡器

SEETAW負載平衡器與VMware上的Anthos叢集完全整合、並在管理與使用者叢集設定中自動執行部署。叢集.yaml組態檔中有一些文字區塊必須加以修改、才能提供負載平衡器資訊、然後在叢集部署之前、有一個額外步驟可以使用內建的「gkectl」工具來部署負載平衡器。

註 可以在HA或非HA模式下部署SEETAW負載平衡器。為了進行此驗證、SEEW負載平衡器是以非HA模式部署、這是預設設定。出於正式作業目的、NetApp建議在HA組態中部署SEETAW、以確保容錯能力與可靠性。

與Anthos整合

每個組態檔中分別有一節是針對管理叢集、以及您選擇部署以設定負載平衡器的每個使用者叢集、以便由Anthos on -Prem來管理。

以下文字是GKE管理叢集分割區組態的範例。需要取消註釋和修改的值會以粗體顯示於下方：

loadBalancer:
  # (Required) The VIPs to use for load balancing
  vips:
    # Used to connect to the Kubernetes API
    controlPlaneVIP: "10.61.181.230"
    # # (Optional) Used for admin cluster addons (needed for multi cluster features). Must
    # # be the same across clusters
    # # addonsVIP: ""
  # (Required) Which load balancer to use "F5BigIP" "Seesaw" or "ManualLB". Uncomment
  # the corresponding field below to provide the detailed spec
  kind: Seesaw
  # # (Required when using "ManualLB" kind) Specify pre-defined nodeports
  # manualLB:
  #   # NodePort for ingress service's http (only needed for user cluster)
  #   ingressHTTPNodePort: 0
  #   # NodePort for ingress service's https (only needed for user cluster)
  #   ingressHTTPSNodePort: 0
  #   # NodePort for control plane service
  #   controlPlaneNodePort: 30968
  #   # NodePort for addon service (only needed for admin cluster)
  #   addonsNodePort: 31405
  # # (Required when using "F5BigIP" kind) Specify the already-existing partition and
  # # credentials
  # f5BigIP:
  #   address:
  #   credentials:
  #     username:
  #     password:
  #   partition:
  #   # # (Optional) Specify a pool name if using SNAT
  #   # snatPoolName: ""
  # (Required when using "Seesaw" kind) Specify the Seesaw configs
  seesaw:
  # (Required) The absolute or relative path to the yaml file to use for IP allocation
  #  for LB VMs. Must contain one or two IPs.
  ipBlockFilePath: "admin-seesaw-block.yaml"
  #   (Required) The Virtual Router IDentifier of VRRP for the Seesaw group. Must
  #   be between 1-255 and unique in a VLAN.
    vrid: 100
  #   (Required) The IP announced by the master of Seesaw group
    masterIP: "10.61.181.236"
  #   (Required) The number CPUs per machine
    cpus: 1
  #   (Required) Memory size in MB per machine
    memoryMB: 2048
  #   (Optional) Network that the LB interface of Seesaw runs in (default: cluster
  #   network)
    vCenter:
  #   vSphere network name
      networkName: VM_Network
  #   (Optional) Run two LB VMs to achieve high availability (default: false)
    enableHA: false

SEETAW負載平衡器也有一個獨立的靜態「SEAL-block.yaml」檔案、您必須為每個叢集部署提供該檔案。此檔案必須位於與「叢集.yaml」部署檔案相關的相同目錄中、否則必須在上述章節中指定完整路徑。

「admin-seesaw-block.yaml」檔案的範例如下所示：

blocks:
  - netmask: "255.255.255.0"
    gateway: "10.63.172.1"
    ips:
    - ip: "10.63.172.152"
      hostname: "admin-seesaw-vm"
註 此檔案提供負載平衡器提供給基礎叢集之網路的閘道和網路遮罩、以及部署以執行負載平衡器之虛擬機器的管理IP和主機名稱。