stage('running something') {
            steps {
                script {
                    dir('my/path/here') {
                        ansiblePlaybook([
                                inventory   : 'hosts',
                                playbook    : 'main.yml',
                                installation: 'ansible',
                                sudoUser    : null,
                                colorized   : true,
                                extraVars   : [
                                        blah   : "${params.blah}",
                                        some_var       : "${params.some_var}"
                                ]
                        ])
                    }
                }
            }
        }