How to run pipeline with constant variables between production and non production - jenkins

Question

I have my jenkins pipelines working and all in source code management, within my pipelines I have some constants which are variables that do not change/rarely change, so these would rarely change and the pipelines requires these values, 90% of it doesnt change but I have some that does change based on the environment type (production/pre-production/test etc)
The problem I have right now is that I would like to take thesame code from non-production to production without having to change things like the file server details, as production/non-production use different file servers, as it stands one has to remember to change the file server when promoting code to production, is it possible to have like a configuration file and the pipeline can read the values from the configuration file, I do not want to change the pipelines or make as little changes as possible when my code moves from non-production to production.
Thanks in advance.

Answer 1

Install the Pipeline Utility Steps plugin and create a properties file each in the repositories/branches for production and non-production respectively. Then read and populate the properties from the file in your pipeline during the build.
Sample server.properties
fileServerUrl=ftp://prod.company.net
fileServerPort=21
// more properties here
Sample Jenkinsfile
pipeline {
agent {
label 'production'
}
stages {
stage('prepare-env') {
script {
def props = readProperties file: 'server.properties'
env.fileServerUrl = props.fileServerUrl
env.fileServerPort = props.fileServerPort
// more properties here
}
}
stage('deploy') {
println("INFO: The file server is ${env.fileServerUrl}:${env.fileServerPort}")
// do stuff here
}
}
}