node('build-slave') {
    try {
        String ANSI_GREEN = "\u001B[32m"
        String ANSI_NORMAL = "\u001B[0m"
        String ANSI_BOLD = "\u001B[1m"
        String ANSI_RED = "\u001B[31m"
        String ANSI_YELLOW = "\u001B[33m"

        ansiColor('xterm') {
            stage('Checkout') {
                if (!env.hub_org) {
                    println(ANSI_BOLD + ANSI_RED + "Uh Oh! Please set a Jenkins environment variable named hub_org with value as registery/sunbidrded" + ANSI_NORMAL)
                    error 'Please resolve the errors and rerun..'
                } else
                    println(ANSI_BOLD + ANSI_GREEN + "Found environment variable named hub_org with value as: " + hub_org + ANSI_NORMAL)
            }
            cleanWs()
            if (params.github_release_tag == "") {
                checkout scm
                commit_hash = sh(script: 'git rev-parse --short HEAD', returnStdout: true).trim()
                branch_name = sh(script: 'git name-rev --name-only HEAD | rev | cut -d "/" -f1| rev', returnStdout: true).trim()
                build_tag = branch_name + "_" + commit_hash
                println(ANSI_BOLD + ANSI_YELLOW + "github_release_tag not specified, using the latest commit hash: " + commit_hash + ANSI_NORMAL)
            } else {
                def scmVars = checkout scm
                checkout scm: [$class: 'GitSCM', branches: [[name: "refs/tags/$params.github_release_tag"]], userRemoteConfigs: [[url: scmVars.GIT_URL]]]
                build_tag = params.github_release_tag
                println(ANSI_BOLD + ANSI_YELLOW + "github_release_tag specified, building from github_release_tag: " + params.github_release_tag + ANSI_NORMAL)
            }
            echo "build_tag: " + build_tag

            stage('Build') {
                sh("./build.sh ${build_tag} ${env.NODE_NAME} ${hub_org}")
            }

            // Building cdn artifact
            // if toggle enabled; default is false
            // override this variable by creating a jenkins parameter and assign `true`
            def cdnEnable = params.cdnEnable ?: false
            // If cdnEnable variable is set true; else skip
            if (cdnEnable) {
                // check jenkins parameter cdnUrl
                if ( ! params.cdnUrl ){
                    error 'cdn url is not defined'
                }
                stage('Build-CDN') {
                    sh ("docker run --rm -v `pwd`:/work -w /work node:8.11.2-alpine sh ./build-cdn.sh ${params.cdnUrl} ${params.commit_hash}")
                    archiveArtifacts "player-dist*.tar.gz"
                }
            }

            stage('ArchiveArtifacts') {
                archiveArtifacts "metadata.json"
                currentBuild.description = "${build_tag}"
            }
        }
    }
    catch (err) {
        currentBuild.result = "FAILURE"
        throw err
    }
}