How can I pass Rundeck variables to a JSON file? - json

Question

I have a JSON with key pairs and I want to access the values from Rundeck Options dynamically during the job execution.
For shell script, we can do a $RD_OPTIONS_<>.
Similarly is there some format I can use in a JSON file?

Answer 1

Just use #option.myoption# in a inline-script step.
You need a tool to use on an inline script step to manipulate JSON files on Rundeck. I made an example using JQ. Alternatively, you can use bash script-fu to reach the same goal.
For example, using this JSON file:
{
"books": [{
"fear_of_the_dark": {
"author": "John Doe",
"genre": "Mistery"
}
}]
}
Update the file with the following jq call:
To test directly in your terminal
jq '.books[].fear_of_the_dark += { "ISBN" : "9999" }' myjson.json
On Rundeck Inline-script
echo "$(jq ''.books[].fear_of_the_dark += { "ISBN" : "#option.isbn#" }'' myjson.json)" > myjson.json
Check how looks on an inline-script job (check here to know how to import the job definition to your Rundeck instance).
- defaultTab: nodes
description: ''
executionEnabled: true
id: d8f1c0e7-a7c6-43d4-91d9-25331cc06560
loglevel: INFO
name: JQTest
nodeFilterEditable: false
options:
- label: isbn number
name: isbn
required: true
plugins:
ExecutionLifecycle: null
scheduleEnabled: true
sequence:
commands:
- description: original file content
exec: cat myjson.json
- description: pass the option and save the content to the json file
fileExtension: .sh
interpreterArgsQuoted: false
script: 'echo "$(jq ''.books[].fear_of_the_dark += { "ISBN" : "#option.isbn#"
}'' myjson.json)" > myjson.json'
scriptInterpreter: /bin/bash
- description: modified file content (after jq)
exec: cat myjson.json
keepgoing: false
strategy: node-first
uuid: d8f1c0e7-a7c6-43d4-91d9-25331cc06560
Finally, check the result.
Here you can check more about executing scripts on Rundeck and here more about the JQ tool.