Referencing json list value created in Rundeck Data Workflow step

Question

Rundeck job: When I create data in data workflow step as json list

{
"repo": ["repo1","repo2","repo3"],
"myrepo": "repo4"
}

how can I access the elements in the list from inline script in next step?

@stub.repo[1]@

doesn't work

@stub.myrepo@

works fine

Data Workflow step executed

Script:

echo "value: @stub.repo[1]]@"
echo "value2: @stub.myrepo@"

Result:

value: 
value2: repo4

Answer 1

The easiest way to catch that array is to use the jq-JSON mapper log filter plugin in any step like the command step or script step (here are the releases, here is how to install the plugin, and here how Log filters works).

Using this plugin you can use the array positions directly, e.g: ${data.data.0}, ${data.data.1}, etc.

Job definition example with your JSON output for testing.

- defaultTab: summary
  description: ''
  executionEnabled: true
  group: JSON
  id: f0d2843f-8de3-4984-a9ae-2fd7ab3963ae
  loglevel: INFO
  name: test-json-array
  nodeFilterEditable: false
  plugins:
    ExecutionLifecycle: null
  scheduleEnabled: true
  sequence:
    commands:
    - plugins:
        LogFilter:
        - config:
            filter: .[]
            logData: 'true'
            prefix: data
          type: json-mapper
      script: |-
        cat <<-END
        {
        "repo": ["repo1","repo2","repo3"],
        "myrepo": "repo4"
        }
        END
    - exec: echo ${data.data.0}
    keepgoing: false
    strategy: node-first
  uuid: f0d2843f-8de3-4984-a9ae-2fd7ab3963ae

Result.

More info about the plugin here.