withCredentials([[$class: 'UsernamePasswordMultiBinding', credentialsId: 'jiracreds', usernameVariable: 'JIRAUser', passwordVariable: 'JIRAPwd']]) { withEnv(["JIRA_USERNAME=${JIRAUser}", "JIRA_PASSWORD=${JIRAPwd}", "JIRA_TICKET=${item}"]) { <build-script-can-use-the-env-vars> } }