删除Jenkins JOB后清理workspace

若是Jenkins使用的Master-Slave多节点架构，删除Jenkins JOB后，相应JOB的slave节点的workspace不会被删除

stackoverflow上有相关的问答：http://stackoverflow.com/questions/20532705/deleting-jenkins-jobs-through-gui-does-not-delete-their-workspaces-in-slaves

google groups上有相关的讨论：https://groups.google.com/forum/#!topic/jenkinsci-users/SiZ3DL-UJ-8

因此须要自行处理，因而用脚本实现该功能

具体思路是：

• 遍历jenkins节点的workspace，根据路径解析得到jenkins job name
• 若是该job不存在（经过python jenkinsapi实现），则删除相应的workspace 
  • 暂不考虑自定义的workspace
• 须要在jenkins每一个节点上进行处理（能够在jenkins上建立job，将job绑定到相应slave上；也能够在相应slave上直接运行脚本）

相关的Python脚本以下： 

# -*- coding: utf-8 -*-
import os
import shutil
import logging

from jenkinsapi.jenkins import Jenkins

logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__file__)


def get_jenkins_instance():
    jenkins_url = "http://jenkins.example.com"
    jenkins_username = "username"
    jenkins_password = "password"
    return Jenkins(jenkins_url, username=jenkins_username, password=jenkins_password)


def clean_workspace():
    jenkins_instance = get_jenkins_instance()

    jenkins_workspace_path = "/opt/JENKINS_HOME/workspace/"

    for dirpath, dirnames, filenames in os.walk(jenkins_workspace_path):
        if dirpath == jenkins_workspace_path:
            for dirname in dirnames:
                jenkins_job_name = dirname
                # 若是job被删除，则清理相应的workspace
                if not jenkins_instance.has_job(jenkins_job_name):
                    logger.info("removing workspace dir of job:%s" % dirname)
                    shutil.rmtree(os.path.join(dirpath, dirname))


if __name__ == "__main__":
    clean_workspace()