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NetBackup™ Web UI Kubernetes 管理指南

Last Published: 2023-12-28

Product(s): NetBackup & Alta Data Protection (10.3)

Platform: Linux,UNIX,Windows

datamover pod 调度机制支持

在备份服务器 ConfigMap 中指定以下字段，以在节点上调度 datamover pod。

nodeSelector：nodeSelector 可以轻松将 pod 约束到具有特定标签的节点。

示例：

apiVersion: v1 

kind: ConfigMap 

metadata: 

  name: backupserver.sample.domain.com 

  namespace: netbackup 

data: 

  datamover.hostaliases: | 

    10.20.12.13=backupserver.sample.domain.com 

    10.21.12.13=mediaserver.sample.domain.com 

  datamover.properties: | 

    image=reg.domain.com/datamover/image:latest 

  datamover.nodeSelector: | 

    kubernetes.io/hostname: test1-l94jm-worker-k49vj 

    topology.rook.io/rack: rack1 

  version: "1"

nodeName：nodeName 是一种直接的节点选择形式，而不是亲和性或 nodeSelector。它允许您指定一个节点，在该节点上调度 pod 进行备份，从而覆盖默认调度机制。

示例：

apiVersion: v1 

kind: ConfigMap 

metadata: 

  name: backupserver.sample.domain.com 

  namespace: netbackup 

data: 

  datamover.hostaliases: | 

    10.20.12.13=backupserver.sample.domain.com 

    10.21.12.13=mediaserver.sample.domain.com 

  datamover.properties: | 

    image=reg.domain.com/datamover/image:latest 

  datamover.nodeName : test1-l94jm-worker-hbblk 

  version: "1"

Taint 和 Toleration：Toleration 允许您调度具有类似 Taint 的 pod。Taint 和 Toleration 协同工作，确保将 pod 调度到适当节点上。如果将一个或多个 Taint 应用于节点，则该节点不得接受不能容忍这些 Taint 的任何 pod。

示例：

apiVersion: v1 

kind: ConfigMap 

metadata: 

  name: backupserver.sample.domain.com 

  namespace: netbackup 

data: 

  datamover.hostaliases: | 

    10.20.12.13=backupserver.sample.domain.com 

    10.21.12.13=mediaserver.sample.domain.com 

  datamover.properties: | 

    image=reg.domain.com/datamover/image:latest 

  datamover.tolerations: | 

    - key: "dedicated" 

      operator: "Equal" 

      value: "experimental" 

      effect: "NoSchedule" 

  version: "1"

亲和性与反亲和性：节点亲和性功能类似于 nodeSelector 字段，但它更具表现力，并允许您指定软规则。pod 之间的亲和性/反亲和性允许您根据其他 pod 上的标签约束 pod。

示例：

节点亲和性：

apiVersion: v1 

kind: ConfigMap 

metadata: 

  name: backupserver.sample.domain.com 

  namespace: netbackup 

data: 

  datamover.hostaliases: | 

    10.20.12.13=backupserver.sample.domain.com 

    10.21.12.13=mediaserver.sample.domain.com 

  datamover.properties: | 

    image=reg.domain.com/datamover/image:latest 

  datamover.affinity: | 

    nodeAffinity: 

      requiredDuringSchedulingIgnoredDuringExecution: 

        nodeSelectorTerms: 

        - matchExpressions: 

          - key: kubernetes.io/hostname 

            operator: In 

            values: 

            - test1-l94jm-worker-hbblk 

      preferredDuringSchedulingIgnoredDuringExecution: 

      - weight: 1 

        preference: 

          matchExpressions: 

          - key: beta.kubernetes.io/arch 

            operator: In 

            values: 

            - amd64 

  version: "1"

Pod 亲和性

apiVersion: v1 

kind: ConfigMap 

metadata: 

  name: backupserver.sample.domain.com 

  namespace: netbackup 

data: 

  datamover.hostaliases: | 

    10.20.12.13=backupserver.sample.domain.com 

    10.21.12.13=mediaserver.sample.domain.com 

  datamover.properties: | 

    image=reg.domain.com/datamover/image:latest 

  datamover.affinity: | 

    podAffinity: 

      requiredDuringSchedulingIgnoredDuringExecution: 

      - labelSelector: 

          matchExpressions: 

          - key: component 

            operator: In 

            values: 

            - netbackup 

        topologyKey: kubernetes.io/hostname 

  version: "1"

topologySpreadConstraints：拓扑分布约束用于控制跨故障域（如地区、区域、节点和用户定义的其他拓扑域）分布在群集中的 pod 的行为。

示例：

apiVersion: v1 

kind: ConfigMap 

metadata: 

  name: backupserver.sample.domain.com 

  namespace: netbackup 

data: 

  datamover. hostaliases: | 

    10.20.12.13=backupserver.sample.domain.com 

    10.21.12.13=mediaserver.sample.domain.com 

  datamover.properties: | 

    image=reg.domain.com/datamover/image:latest 

  datamover.topologySpreadConstraints : | 

    - maxSkew: 1 

      topologyKey: kubernetes.io/hostname 

      whenUnsatisfiable: DoNotSchedule 

  version: "1"

标签：标签是附加到对象（如 pod）的键/值对。标签用于标识与用户相关的重要对象的属性。通过标签可以组织和选择对象的子集。标签可以在创建时附加到对象，随后可以随时进行添加和修改。

示例：

apiVersion: v1 

kind: ConfigMap 

metadata: 

  name: backupserver.sample.domain.com 

  namespace: netbackup 

data: 

  datamover.hostaliases: | 

    10.20.12.13=backupserver.sample.domain.com 

    10.21.12.13=mediaserver.sample.domain.com 

  datamover.properties: | 

    image=reg.domain.com/datamover/image:latest 

  datamover.labels: | 

    env: test 

    pod: datamover 

  version: "1"

注释：用户可以使用标签或注释将元数据附加到 Kubernetes 对象。不能使用注释标识和选择对象。

示例：

apiVersion: v1 

kind: ConfigMap 

metadata: 

  name: backupserver.sample.domain.com 

  namespace: netbackup 

data: 

  datamover.hostaliases: | 

    10.20.12.13=backupserver.sample.domain.com 

    10.21.12.13=mediaserver.sample.domain.com 

  datamover.properties: | 

    image=reg.domain.com/datamover/image:latest 

  datamover.annotations: | 

    buildinfo: |- 

      [{ 

            "name": "test", 

            "build": "1" 

      }] 

    imageregistry: "https://reg.domain.com/" 

  version: "1"