Change Job's Node Filter Conditionally

[FD]

I have a cluster distributed across 3 different zones. The user wants to be able to run a an operation per zone or on the entire cluster. The cluster nodes are tagged with zone name. To accomplish this requirement in RD ...

1- I created job with an option 'cluster_zone_name' with required values of zone_1, zone_2, zone_3, zone_all

2- I populated the node filler with 'tags:${option.cluster_zone_name}

This setup works fine if user opts for a specific zone. If users decide to run the operations on all zones, they choose 'zone_all', this string is not a tag value used by the cluster nodes. 

Is there away I can progmatically  alter the value of the option '${option.cluster_zone_name}' in my code and set it, for example, to something like '.*' wildcard for the node filter.

All creative ideas are welcomed. 

Thanks 

[Alex Honor]

Hi FD,

Here's an approach to implementing that scenario. Basically, it relies on the ability to use a regex for the tag value. In my example, I show two regex patterns to accomplish the same goal (one is more specific pattern).

Here's what it looks like after I run the job:

Job definition below:

and in YAML format:

- description: ''

  executionEnabled: true

  loglevel: INFO

  name: example

  nodeFilterEditable: false

  nodefilters:

    dispatch:

      excludePrecedence: true

      keepgoing: false

      rankOrder: ascending

      successOnEmptyNodeFilter: false

      threadcount: 1

    filter: 'tags: ${option.cluster_zone_name}'

  nodesSelectedByDefault: true

  options:

  - name: cluster_zone_name

    required: true

    values:

    - zone_(1|2|3)

    - zone_.*

    - zone_1

    - zone_2

    - zone_3

  scheduleEnabled: true

  sequence:

    commands:

    - configuration:

        command: 'echo ''node: ${node.name}, tags: ${node.tags}'''

      nodeStep: true

      type: localexec

    keepgoing: false

    strategy: node-first

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Alex Honor

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