Extended Choice Parameter implementation - jenkins

Question

I'm setting up a new job in which we are required to select Multiple values. Need to select Service1 and Service2...
Went through link How to pass multi select value parameter in Jenkins file(Groovy)
However, I am not sure how to pass values in my Jenkinsfile
A snippet of Jenkinsfile
stage('parallel'){
parallel(
"service1": {stage('service1-deployment') {
if (params.ServiceName == 'Service1' || params.ServiceName == 'ALL'){
b = build(job: 'job name', parameters: [string(name: 'ENVIRONMENT', value: TARGET_ENVIRONMENT),string(name: 'IMAGE_TAG', value: value)], propagate: false).result
if(b=='FAILURE'){
echo "job failed"
currentBuild.result = 'UNSTABLE'
}
}
}
},
"service2": {stage('service2t') {
if (params.ServiceName == 'service2' || params.ServiceName == 'ALL'){
b = build(job: 'Job name', parameters: [string(name: 'ENVIRONMENT', value: TARGET_ENVIRONMENT),string(name: 'IMAGE_TAG', value: value)], propagate: false).result
if(b=='FAILURE'){
echo "job failed"
currentBuild.result = 'UNSTABLE'
}
}
}
},

Answer 1

I see that you're using declarative pipeline syntax for your job.
So, if the accepted answer for that question with booleanParam is useful for you, then you can use it inside parameters section (see the official documentation for more details):
pipeline {
agent any
parameters {
booleanParam(defaultValue: false, name: 'ALL', description: 'Process all'),
booleanParam(defaultValue: false, name: 'OPTION_1', description: 'Process option 1'),
booleanParam(defaultValue: false, name: 'OPTION_2', description: 'Process options 2'),
}
stages {
stage('Example') {
steps {
echo "All: ${params.ALL}"
echo "Option 1: ${params.OPTION_1}"
echo "Option 2: ${params.OPTION_2}"
}
}
}
}
However, if you want to use extended choice parameter with multiselect input, you need to use scripted pipeline syntax, see this example (already mentioned here).