seecoder-build-jenkins/config/credentials.groovy

#!groovy

import groovy.json.JsonSlurper
import jenkins.model.*
import com.cloudbees.plugins.credentials.*
import com.cloudbees.plugins.credentials.common.*
import com.cloudbees.plugins.credentials.domains.*
import com.cloudbees.plugins.credentials.impl.*
import com.cloudbees.jenkins.plugins.sshcredentials.impl.*
import hudson.plugins.sshslaves.*;

def domain = Domain.global()
def store = Jenkins.instance.getExtensionList('com.cloudbees.plugins.credentials.SystemCredentialsProvider')[0].getStore()

def parser = new JsonSlurper()
def config = parser.parseText(new File('/var/jenkins_home/config.json').text)

gitlabCredentials = new UsernamePasswordCredentialsImpl(
  CredentialsScope.GLOBAL,
  "Gitlab", "Gitlab Credentials",
  config.gitlab.username,
  config.gitlab.password
)

println "--> creating credentials"

store.addCredentials(domain, gitlabCredentials)