This is an example of a pipeline that clone app repository create its Docker Image and then it clones a repository where all Stacks files are save and it updates an specific Stackfile then commits it and push it to master.

pipeline.groovy

pipeline {
    agent any
    options {
        skipDefaultCheckout(true)
    }
    stages {
        stage("Clone Repository") {
            steps {
                slackSend channel: '#<Channel>', color: 'good', message: "$JOB_NAME - $BUILD_DISPLAY_NAME Started, (<$BUILD_URL|Open>)", tokenCredentialId: 'Slack-Token'
                sshagent(['jenkins-github-ssh-key']) {
                    sh 'git clone --single-branch -b ${BRANCH_NAME} git@github.com:<GitHub Repository>'
                }
            }
        }
        stage("Build") {
            steps {
                dir('<Repositoy Name>') {
                    script {
                        sh "docker build -t <Private Registry>/<NameSpace>/<Repository>:$BUILD_NUMBER"
                        sh "docker push <Private Registry>/<NameSpace>/<Repository>:$BUILD_NUMBER"
                    }
                }                
            }
        }
        stage("Update Stackfile") {
            steps {
                sshagent(['jenkins-github-ssh-key']) {
                    sh 'git clone --single-branch -b master git@github.com:<GitHub Path>/stackfiles.git'
                    dir('stackfiles/devCluster/app') {
                        sh 'git config user.name <GitHub User Name>'
                        sh 'git config user.email <GitHub User Email>'
                        script {
                            sh 'sudo -E perl -i -pe \'s/\\/app\\:\\d(.*)/\\/app:$ENV{"BUILD_NUMBER"}/g\' dev-stack.yml'
                        }
                        sh "git add ."
                        sh 'git commit -m "Jenkins - ${JOB_NAME} v${BUILD_NUMBER}" -m "${BUILD_URL}"'
                        sh 'git push origin master'
                    }
                }
            }
        }
        stage("Development Deploy") {
            steps {
                dir('stackfiles/devCluster/app') {
                    script {
                        sshPublisher(publishers: [sshPublisherDesc(configName: '<Server>', transfers: [sshTransfer(cleanRemote: false, excludes: '', execCommand: 'cd devCluster/app/ && sudo -E docker stack deploy -c dev-stack.yml dev', execTimeout: 120000, flatten: false, makeEmptyDirs: false, noDefaultExcludes: false, patternSeparator: '[, ]+', remoteDirectory: 'devCluster/app', remoteDirectorySDF: false, removePrefix: '', sourceFiles: 'dev-stack.yml')], usePromotionTimestamp: false, useWorkspaceInPromotion: false, verbose: false)])
                    }
                }
            }
        }
    }
    post {
        success {
            slackSend channel: '#<Channel>', color: 'good', message: "$JOB_NAME - $BUILD_DISPLAY_NAME Succeed, (<$BUILD_URL|Open>)", tokenCredentialId: 'Slack-Token'
        }
        failure {
            slackSend channel: '#<Channel>', color: 'danger', message: "$JOB_NAME - $BUILD_DISPLAY_NAME Failed, (<$BUILD_URL|Open>)", tokenCredentialId: 'Slack-Token'
        }
        unstable {
            slackSend channel: '#<Channel>', color: 'warning', message: "$JOB_NAME - $BUILD_DISPLAY_NAME Unstabled, (<$BUILD_URL|Open>)", tokenCredentialId: 'Slack-Token'
        }
        cleanup {
            deleteDir()
        }
    }
}