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9.3. Assigning builds to specific nodes

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Builds can be targeted to run on specific nodes by specifying labels in the nodeSelector field of a build configuration. The nodeSelector value is a set of key-value pairs that are matched to Node labels when scheduling the build pod.

The nodeSelector value can also be controlled by cluster-wide default and override values. Defaults will only be applied if the build configuration does not define any key-value pairs for the nodeSelector and also does not define an explicitly empty map value of nodeSelector:{}. Override values will replace values in the build configuration on a key by key basis.

注意

If the specified NodeSelector cannot be matched to a node with those labels, the build still stay in the Pending state indefinitely.

Procedure

  • Assign builds to run on specific nodes by assigning labels in the nodeSelector field of the BuildConfig, for example:

    apiVersion: "v1"
    kind: "BuildConfig"
    metadata:
      name: "sample-build"
    spec:
      nodeSelector:1
        key1: value1
        key2: value2
    1
    Builds associated with this build configuration will run only on nodes with the key1=value2 and key2=value2 labels.
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