jenkins-create-credentials-when-not-found.groovy

import org.jenkinsci.plugins.credentialsbinding.impl.CredentialNotFoundException
import hudson.util.Secret
import com.cloudbees.plugins.credentials.CredentialsScope
import org.jenkinsci.plugins.plaincredentials.impl.StringCredentialsImpl
import com.cloudbees.plugins.credentials.domains.Domain

node {
    
    try{
        withCredentials([
            string(credentialsId: 'CREDENTIAL_A', variable: "CREDENTIAL_A"), 
            string(credentialsId: 'CREDENTIAL_B', variable: "CREDENTIAL_B"),
        ]) {
            println "Credentials finded"
        }
    } catch (CredentialNotFoundException e) {
        
        def askqued = input (
            id: "CREDENTIALS", 
            message: "Enter the credentials.",
            parameters: [
                [
                    $class: "StringParameterDefinition", 
                    defaultValue: "", 
                    description: "", 
                    name: "CREDENTIAL_A"
                ],[
                    $class: "StringParameterDefinition", 
                    defaultValue: "", 
                    description: "", 
                    name: "CREDENTIAL_B"
                ]
            ]
        )
        
        def store = Jenkins.getInstance().getExtensionList (
            'com.cloudbees.plugins.credentials.SystemCredentialsProvider'
        )[0].getStore()

        for (resp in askqued) {
            def secretText = new StringCredentialsImpl(
                CredentialsScope.GLOBAL,
                resp.key,
                "",
                Secret.fromString(resp.key)
            )
            store.addCredentials(Domain.global(), secretText)
        }
    }
}