pythonjenkins - Man Page

This is an example showing how to connect to a Jenkins instance and retrieve the Jenkins server version.

import jenkins

server = jenkins.Jenkins('http://localhost:8080', username='myuser', password='mypassword')
user = server.get_whoami()
version = server.get_version()
print('Hello %s from Jenkins %s' % (user['fullName'], version))

The above code prints the fullName attribute of the user and the version of the Jenkins master running on 'localhost:8080'. For example, it may print "Hello John from Jenkins 2.0".

From Jenkins version 1.426 onward you can specify an API token instead of your real password while authenticating the user against the Jenkins instance. Refer to the Jenkins Authentication wiki for details about how you can generate an API token. Once you have an API token you can pass the API token instead of a real password while creating a Jenkins instance.

Kerberos support is only enabled if you have "kerberos" python package installed. You can install the "kerberos" package from PyPI using the obvious pip command.

pip install kerberos

NOTE:

This might require python header files as well as kerberos header files.

If you have "kerberos" python package installed, python-jenkins tries to authenticate using kerberos automatically when the Jenkins server replies "401 Unauthorized" and indicates it supports kerberos.  That is, kerberos authentication should work automagically. For a quick test, just try the following.

import jenkins

server = jenkins.Jenkins('http://localhost:8080')
print server.jobs_count()

NOTE:

Jenkins as such does not support kerberos, it needs to be supported by the Servlet container or a reverse proxy sitting in front of Jenkins.

This is an example showing how to create, configure and delete Jenkins jobs.

server.create_job('empty', jenkins.EMPTY_CONFIG_XML)
jobs = server.get_jobs()
print jobs
my_job = server.get_job_config('cool-job')
print(my_job) # prints XML configuration
server.build_job('empty')
server.disable_job('empty')
server.copy_job('empty', 'empty_copy')
server.enable_job('empty_copy')
server.reconfig_job('empty_copy', jenkins.RECONFIG_XML)

server.delete_job('empty')
server.delete_job('empty_copy')

# build a parameterized job
# requires creating and configuring the api-test job to accept 'param1' & 'param2'
server.build_job('api-test', {'param1': 'test value 1', 'param2': 'test value 2'})
last_build_number = server.get_job_info('api-test')['lastCompletedBuild']['number']
build_info = server.get_build_info('api-test', last_build_number)
print build_info

# get all jobs from the specific view
jobs = server.get_jobs(view_name='View Name')
print jobs

This is an example showing how to create, configure and delete Jenkins views.

server.create_view('EMPTY', jenkins.EMPTY_VIEW_CONFIG_XML)
view_config = server.get_view_config('EMPTY')
views = server.get_views()
server.delete_view('EMPTY')
print views

This is an example showing how to retrieve Jenkins plugins information.

plugins = server.get_plugins_info()
print plugins

The above example will print a dictionary containing all the plugins that are installed on the Jenkins server.  An example of what you can expect from the get_plugins_info() method is documented in the API reference doc.

This is an example showing how to add, configure, enable and delete Jenkins nodes.

server.create_node('slave1')
nodes = get_nodes()
print nodes
node_config = server.get_node_info('slave1')
print node_config
server.disable_node('slave1')
server.enable_node('slave1')

# create node with parameters
params = {
    'port': '22',
    'username': 'juser',
    'credentialsId': '10f3a3c8-be35-327e-b60b-a3e5edb0e45f',
    'host': 'my.jenkins.slave1'
}
server.create_node(
    'slave1',
    nodeDescription='my test slave',
    remoteFS='/home/juser',
    labels='precise',
    exclusive=True,
    launcher=jenkins.LAUNCHER_SSH,
    launcher_params=params)

This is an example showing how to retrieve information on the Jenkins queue.

server.build_job('foo')
queue_info = server.get_queue_info()
id = queue_info[0].get('id')
server.cancel_queue(id)

Requires the Cloudbees Folders Plugin for Jenkins.

This is an example showing how to create, configure and delete Jenkins folders.

server.create_job('folder', jenkins.EMPTY_FOLDER_XML)
server.create_job('folder/empty', jenkins.EMPTY_FOLDER_XML)
server.copy_job('folder/empty', 'folder/empty_copy')
server.delete_job('folder/empty_copy')
server.delete_job('folder')

Requires the Next Build Number Plugin for Jenkins.

This is an example showing how to update the next build number for a Jenkins job.

next_bn = server.get_job_info('job_name')['nextBuildNumber']
server.set_next_build_number('job_name', next_bn + 50)

Requires the Promoted Builds Plugin for Jenkins.

This is an example showing how to create, configure and delete a promotion process for an existing job.

The job in this example is named prom_job and it needs to have this config xml snippet before creating the promotion:

<properties>
   <hudson.plugins.promoted__builds.JobPropertyImpl>
   <activeProcessNames>
      <string>prom_name</string>
    </activeProcessNames>
  </hudson.plugins.promoted__builds.JobPropertyImpl>
</properties>

where prom_name is the name of the promotion that will get added to the job.

server.create_promotion('prom_name', 'prom_job', jenkins.EMPTY_PROMO_CONFIG_XML)
server.promotion_exists('prom_name', 'prom_job')
print server.get_promotions('prom_job')

server.reconfig_promotion('prom_name', 'prom_job', jenkins.PROMO_RECONFIG_XML)
print server.get_promotion_config('prom_name', 'prom_job')

server.delete_promotion('prom_name', 'prom_job')

It is possible to ask the API to wait for Jenkins to be ready with a given timeout. This can be used to aid launching of Jenkins and then waiting for the REST API to be responsive before continuing with subsequent configuration.

# timeout here is the socket connection timeout, for each connection
# attempt it will wait at most 5 seconds before assuming there is
# nothing listening. Useful where firewalls may black hole connections.
server = jenkins.Jenkins('http://localhost:8080', timeout=5)

# wait for at least 30 seconds for Jenkins to be ready
if server.wait_for_normal_op(30):
    # actions once running
    ...
else:
    print("Jenkins failed to be ready in sufficient time")
    exit 2

Note that the timeout arg to jenkins.Jenkins() is the socket connection timeout. If you set this to be more than the timeout value passed to wait_for_normal_op(), then in cases where the underlying connection is not rejected (firewall black-hole, or slow connection) then wait_for_normal_op() may wait at least the connection timeout, or a multiple of it where multiple connection attempts are made. A connection timeout of 5 seconds and a wait timeout of 8 will result in potentially waiting 10 seconds if both connections attempts do not get responses.

Documentation is included in the doc folder. To generate docs locally execute the command:

tox -e docs

The generated documentation is then available under doc/build/html/index.html.

Unit tests have been included and are in the tests folder.  We recently started including unit tests as examples in our documentation so to keep the examples up to date it is very important that we include unit tests for every module.  To run the unit tests, execute the command:

tox -e py27

• Note: View tox.ini to run tests on other versions of Python.

Due to how the tests are split up into a dedicated class per API method, it is possible to execute tests against a single API at a time. To execute the tests for the Jenkins.get_version() API execute the command:

tox -e py27 -- tests.test_version.JenkinsVersionTest

For further details on how to list tests available and different ways to execute them, see https://wiki.openstack.org/wiki/Testr.

To measure test coverage, execute the command:

tox -e cover

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