如何从Jenkins管道脚本中的标签获取节点名称

Question

我有一组虚拟机来测试我的构建结果.所有VM都配置为Jenkins从属节点.主节点可以启动和停止VM.

该虚拟机的标签三个一组(cluster1,cluster2),并用不同的角色(role1,role2,role3).

我想编写一个管道脚本,它以GROUP名作为参数(StringParameterValue)和

1. 启动属于该组的VM
2. 在每个节点上运行单独的测试(并行)
3. 完成后停止VM.

管道脚本看起来大致如下:

def VM1 = ??? get name of the node labeled ("GROUP && role1") ???;
def VM2 = ??? get name of the node labeled ("GROUP && role2") ???;
def VM3 = ??? get name of the node labeled ("GROUP && role3") ???;
def VMs = [VM1, VM2, VM3];

node (master) {

    stage 'Start'
    def start = [:];
    for ( vm in VMs ) {
        start["${vm}"] = {
            build job: 'Start_VM', parameters: [
                [$class: 'StringParameterValue', name: 'VMNAME', value: vm]];
        }
    }
    parallel start;

    def tests = [:];
    for (int i = 0; i < VMs.size; i++) {
        tests["role${i}"] = {
            node (VMs[i]) {
                build job: "Test_role${i}";
            }
        }
    }
    parallel tests;

    Stage 'Stop'
    def stop = [:];
    for ( vm in VMs ) {
        stop["${vm}"] = {
            build job: 'Stop_VM', parameters: [
                [$class: 'StringParameterValue', name: 'VMNAME', value: vm]];
        }
    }
    parallel stop;
}

问:如何通过组标签派生单个节点名称？

Answer 1

我实现了一个从标签中获取节点名称的函数:

def roles = ['role1', 'role2', 'role3'];

def getNodeNames (group, roles) {
    def lgroup = Jenkins.instance.getLabel(group)
    def result = [:]

    for (role in roles) {
        def lrole = lgroup.and(Jenkins.instance.getLabel(role))
        def nodes = lrole.getNodes()
        if (nodes.size() > 0) {
            result[role] = nodes[0].getNodeName()
        }
    }
    print "getNodeNames($group) = ${result}"
    return result
}

def VMs = getNodeNames(GROUP)