225 lines
8.5 KiB
Python
225 lines
8.5 KiB
Python
# Copyright 2012 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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# So we can name this module "jenkins" and still load the "jenkins"
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# system module
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from __future__ import absolute_import
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import threading
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from webob import Request
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from paste import httpserver
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from uuid import uuid1
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import jenkins
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import json
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import urllib2 # for extending jenkins lib
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import logging
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import pprint
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from zuul.model import Build
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class JenkinsCallback(threading.Thread):
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log = logging.getLogger("zuul.JenkinsCallback")
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def __init__(self, jenkins):
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threading.Thread.__init__(self)
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self.jenkins = jenkins
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def run(self):
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httpserver.serve(self.app, host='0.0.0.0', port='8001')
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def app(self, environ, start_response):
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request = Request(environ)
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if request.path == '/jenkins_endpoint':
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self.jenkins_endpoint(request)
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start_response('200 OK', [('content-type', 'text/html')])
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return ['Zuul good.']
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def jenkins_endpoint(self, request):
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data = json.loads(request.body)
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if data:
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self.log.debug("Received data from Jenkins: \n%s" % (
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pprint.pformat(data)))
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build = data.get('build')
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if build:
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phase = build.get('phase')
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status = build.get('status')
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url = build.get('full_url')
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number = build.get('number')
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params = build.get('parameters')
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if params:
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uuid = params.get('UUID')
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if (status and url and uuid and phase
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and phase == 'COMPLETED'):
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self.jenkins.onBuildCompleted(uuid, status, url, number)
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if (phase and phase == 'STARTED'):
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self.jenkins.onBuildStarted(uuid, url, number)
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STOP_BUILD = 'job/%(name)s/%(number)s/stop'
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CANCEL_QUEUE = 'queue/item/%(number)s/cancelQueue'
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BUILD_INFO = 'job/%(name)s/%(number)s/api/json?depth=0'
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class ExtendedJenkins(jenkins.Jenkins):
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def jenkins_open(self, req):
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'''
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Utility routine for opening an HTTP request to a Jenkins server.
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'''
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try:
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if self.auth:
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req.add_header('Authorization', self.auth)
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return urllib2.urlopen(req).read()
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except urllib2.HTTPError, e:
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print e.msg
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print e.fp.read()
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raise
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def stop_build(self, name, number):
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'''
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Stop a running Jenkins build.
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@param name: Name of Jenkins job
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@type name: str
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@param number: Jenkins build number for the job
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@type number: int
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'''
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self.jenkins_open(urllib2.Request(self.server + STOP_BUILD%locals()))
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def cancel_queue(self, number):
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'''
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Cancel a queued build.
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@param number: Jenkins queue number for the build
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@type number: int
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'''
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# Jenkins returns a 302 from this URL, unless Referer is not set,
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# then you get a 404.
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self.jenkins_open(urllib2.Request(self.server + CANCEL_QUEUE%locals(),
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headers={'Referer': self.server}))
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def get_build_info(self, name, number):
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'''
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Get information for a build.
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@param name: Name of Jenkins job
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@type name: str
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@param number: Jenkins build number for the job
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@type number: int
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@return: dictionary
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'''
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return json.loads(self.jenkins_open(urllib2.Request(self.server + BUILD_INFO%locals())))
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class Jenkins(object):
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log = logging.getLogger("zuul.Jenkins")
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def __init__(self, config, sched):
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self.sched = sched
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self.builds = {}
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server = config.get('jenkins', 'server')
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user = config.get('jenkins', 'user')
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apikey = config.get('jenkins', 'apikey')
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self.jenkins = ExtendedJenkins(server, user, apikey)
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self.callback_thread = JenkinsCallback(self)
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self.callback_thread.start()
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def launch(self, job, change, dependent_changes = []):
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self.log.info("Launch job %s for change %s with dependent changes %s" % (
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job, change, dependent_changes))
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uuid = str(uuid1())
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dependent_changes_str = '^'.join(
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['%s:%s:%s' % (c.project.name, c.branch, c.refspec)
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for c in dependent_changes])
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params = dict(UUID=uuid,
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GERRIT_PROJECT=change.project.name,
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GERRIT_BRANCH=change.branch,
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GERRIT_REFSPEC=change.refspec,
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DEPENDENT_CHANGES=dependent_changes_str)
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build = Build(job, uuid)
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self.builds[uuid] = build
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# We can get the started notification on another thread before this is done
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# so we add the build even before we trigger the job on Jenkins. We should
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# be careful to clean it up if it doesn't actually kick off.
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try:
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self.jenkins.build_job(job.name, parameters=params)
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except:
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self.log.exception("Exception launching build %s for job %s for change %s:" % (
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build, job, change))
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# Whoops. Remove that build we added.
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del self.builds[uuid]
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raise
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return build
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def cancel(self, build):
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self.log.info("Cancel build %s for job %s" % (build, build.job))
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if build.number:
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self.log.debug("Build %s has already started" % build)
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self.jenkins.stop_build(build.job.name, build.number)
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self.log.debug("Canceled running build %s" % build)
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return
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else:
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self.log.debug("Build %s has not started yet" % build)
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self.log.debug("Looking for build %s in queue" % build)
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for item in self.jenkins.get_queue_info():
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if not item.has_key('actions'):
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continue
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for action in item['actions']:
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if not action.has_key('parameters'):
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continue
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parameters = action['parameters']
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for param in parameters:
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if (param['name'] == 'UUID' and build.uuid == param['value']):
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self.log.debug("Found queue item %s for build %s" % (
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item['id'], build))
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try:
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self.jenkins.cancel_queue(item['id'])
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self.log.debug("Canceled queue item %s for build %s" % (
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item['id'], build))
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return
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except:
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self.log.exception("Exception canceling queue item %s for build %s" % (
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item['id'], build))
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self.log.debug("Still unable to find build %s to cancel" % build)
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if build.number:
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self.log.debug("Build %s has just started" % build)
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self.jenkins.stop_build(build.job.name, build.number)
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self.log.debug("Canceled just running build %s" % build)
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else:
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self.log.error("Build %s has not started but was not found in queue" % build)
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def onBuildCompleted(self, uuid, status, url, number):
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self.log.info("Build %s #%s complete, status %s" % (
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uuid, number, status))
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build = self.builds.get(uuid)
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if build:
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self.log.debug("Found build %s" % build)
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del self.builds[uuid]
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build.result = status
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build.url = url
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build.number = number
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self.sched.onBuildCompleted(build)
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else:
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self.log.error("Unable to find build %s" % uuid)
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def onBuildStarted(self, uuid, url, number):
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self.log.info("Build %s #%s started, url: %s" % (uuid, number, url))
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build = self.builds.get(uuid)
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if build:
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self.log.debug("Found build %s" % build)
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build.url = url
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build.number = number
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else:
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self.log.error("Unable to find build %s" % uuid)
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