Recommended way of loading config file from jenkins pipeline groovy script

Question

I want to load a config value (something like json, yaml, xml or ini) from a jenkins pipeline script. When I try to use org.yaml.snakeyaml.Yaml I get

Scripts not permitted to use new org.yaml.snakeyaml.Yaml

I know I can unlock org.yaml.snakeyaml.Yam, but the message tells me that this does not seem to be the standard way of loading config files.

Is there a way of loading config files that is already unlocked?

Answer 1

If anyone looking for yaml parser in jenkinsfile, I recommend the following

 def yamlData = readYaml file: 'cae.yaml'

Reference : https://jenkins.io/doc/pipeline/steps/pipeline-utility-steps/#code-readyaml-code-read-yaml-from-files-in-the-workspace-or-text

Answer 2

Try using the JsonSlurper:

def config = new JsonSlurper().parse(new File("config.json"))