Retire this repo

The opendev project stopped running its mqtt service and no longer uses
the germqtt tool. To simplify things for us we are taking the extra step
of retiring this repo.

Gerrit has a number of event stream plugins now that people can look at
if necessary.

Change-Id: I2facb129452b936c8b0d73f09b2d5ed4b7be57ec
This commit is contained in:
Clark Boylan 2022-02-17 13:06:10 -08:00
parent b4b67051e6
commit 1ff48c994f
20 changed files with 9 additions and 754 deletions

18
.gitignore vendored
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AUTHORS
ChangeLog
*.pyc
*.log
*.swp
*.swo
*.egg*
.tox
.venv
dist
build
.testrepository
.idea
.project
.pydevproject
.coverage*
!.coveragerc
cover/

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[DEFAULT]
test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-500} \
OS_TEST_LOCK_PATH=${OS_TEST_LOCK_PATH:-${TMPDIR:-'/tmp'}} \
${PYTHON:-python} -m subunit.run discover -t ./ ./germqtt/tests $LISTOPT $IDOPTION
test_id_option=--load-list $IDFILE
test_list_option=--list

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============
Contributing
============
If you would like to contribute to the development of OpenStack,
you must follow the steps in this page:
http://docs.openstack.org/infra/manual/developers.html
If you already have a good understanding of how the system works and your
OpenStack accounts are set up, you can skip to the development workflow section
of this documentation to learn how changes to OpenStack should be submitted for
review via the Gerrit tool:
http://docs.openstack.org/infra/manual/developers.html#development-workflow

175
LICENSE
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
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9
README.md Normal file
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This project is no longer maintained.
The contents of this repository are still available in the Git
source code management system. To see the contents of this
repository before it reached its end of life, please check out the
previous commit with "git checkout HEAD^1".
For any further questions, please email
service-discuss@lists.opendev.org or join #opendev on OFTC.

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@ -1,82 +0,0 @@
=======
germqtt
=======
Germqtt, like its name implies, is a tool for publish a gerrit event stream
into MQTT. It will publish all the capture events from the gerrit event stream
and publish them to MQTT into topics split by project and event type. For
example a commented added to a project name foo would be published as an event
on the topic: base_topic/foo/commented-added
By default germqtt is setup as a daemon however if you need to run it
interactively you can use the *--foreground* option to do this.
MQTT Topics
===========
germqtt will push gerrit events to topics broken by project and event type.
The formula used is::
<base topic>/<project>/<event type>
For example, if gerrit emits a *comment-added* event for the *openstack/nova*
project germqtt will push that event to the topic::
gerrit/openstack/nova/comment-added
assuming the base topic is configured to be gerrit. For more information on
topics in MQTT refer to: https://mosquitto.org/man/mqtt-7.html
Configuration
=============
There are a few required pieces of information to make germqtt work properly.
These settings are specified in the config file.
Gerrit
------
You need to provide credentials and connection information for connecting to
gerrit to get the event stream. Germqtt uses the gerritlib library to establish
a connection to gerrit over ssh and listen to the event stream. All these
options live in the *[gerrit]* section. The 3 required options for gerrit are:
* **username** - The username to login with
* **hostname** - The hostname for your gerrit server
* **key** - The path to your ssh key to use for connecting to gerrit
There is also an optional config option, *port*, which is used to specify the
port to connect to gerrit with. By default this is set to 29418, which is the
gerrit default. If your gerrit server uses a non-default port you'll need to set
this option.
MQTT
----
Just as with gerrit there are a few required options for talking to MQTT, which
is the other axis of communication in germqtt. The options for configuring MQTT
communication go in the *[mqtt]* section. The 2 required options are:
* **hostname** - The hostname for the MQTT broker
* **topic** - The base topic name to use for the gerrit events
There are also a couple optional settings for communicating with mqtt that you
can set:
* **port** - The port to communicate to the MQTT broker on. By default this
is set to 1883, the default MQTT port. This only needs to be set
if your broker uses a non-default port.
* **keepalive** - Used to set the keepalive time for connections to the MQTT
broker. By default this is set to 60 seconds.
* **username** - Used to set the auth username to connect to the MQTT broker
with.
* **password** - Used to set the auth password to connect to the MQTT broker
with. A username must be set for this option to be used.
* **qos** - Used to set the QOS level for the messages published by germqtt.
For more information on the different QOS levels refer to:
https://mosquitto.org/man/mqtt-7.html
Other Settings
--------------
By default germqtt will use /var/run/germqtt.pid for it's PID file, if however
you'd like to use a different file for storing the PID you can use the *pidfile*
option in the *[default]* section of the configuration file.

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# -*- coding: utf-8 -*-
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import sys
sys.path.insert(0, os.path.abspath('../..'))
# -- General configuration ----------------------------------------------------
# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
extensions = [
'sphinx.ext.autodoc',
'oslosphinx',
]
# autodoc generation is a bit aggressive and a nuisance when doing heavy
# text edit cycles.
# execute "export SPHINX_DEBUG=1" in your terminal to disable
# The suffix of source filenames.
source_suffix = '.rst'
# The master toctree document.
master_doc = 'index'
# General information about the project.
project = u'germqtt'
copyright = u'2016, Matthew Treinish'
# If true, '()' will be appended to :func: etc. cross-reference text.
add_function_parentheses = True
# If true, the current module name will be prepended to all description
# unit titles (such as .. function::).
add_module_names = True
# The name of the Pygments (syntax highlighting) style to use.
pygments_style = 'sphinx'
# -- Options for HTML output --------------------------------------------------
# The theme to use for HTML and HTML Help pages. Major themes that come with
# Sphinx are currently 'default' and 'sphinxdoc'.
# html_theme_path = ["."]
# html_theme = '_theme'
# html_static_path = ['static']
# Output file base name for HTML help builder.
htmlhelp_basename = '%sdoc' % project
# Grouping the document tree into LaTeX files. List of tuples
# (source start file, target name, title, author, documentclass
# [howto/manual]).
latex_documents = [
('index',
'%s.tex' % project,
u'%s Documentation' % project,
u'Matthew Treinish', 'manual'),
]
# Example configuration for intersphinx: refer to the Python standard library.
# intersphinx_mapping = {'http://docs.python.org/': None}

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germqtt
=======
Contents:
.. toctree::
:maxdepth: 2
readme

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.. include:: ../../README.rst

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[default]
pidfile = /var/run/germqtt.pid
[gerrit]
username=gerrit_username
hostname=localhost
key=~/.ssh/id_rsa
[mqtt]
hostname=localhost
topic=gerrit
qos = 2

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#! /usr/bin/env python
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import argparse
import json
import logging
import os
import daemon
import gerritlib.gerrit
import paho.mqtt.publish as publish
from six.moves import configparser as ConfigParser
try:
import daemon.pidlockfile
pid_file_module = daemon.pidlockfile
except Exception:
# as of python-daemon 1.6 it doesn't bundle pidlockfile anymore
# instead it depends on lockfile-0.9.1
import daemon.pidfile
pid_file_module = daemon.pidfile
log = logging.getLogger('germqtt')
class GerritStream(object):
def __init__(self, user, host, key, thread=True, port=29418):
self.gerrit = gerritlib.gerrit.Gerrit(host, user, port, key)
if thread:
self.gerrit.startWatching()
def get_event(self):
return self.gerrit.getEvent()
class PushMQTT(object):
def __init__(self, hostname, port=1883, client_id=None,
keepalive=60, will=None, auth=None, tls=None, qos=0):
self.hostname = hostname
self.port = port
self.client_id = client_id
self.keepalive = 60
self.will = will
self.auth = auth
self.tls = tls
self.qos = qos
def publish_single(self, topic, msg):
publish.single(topic, msg, hostname=self.hostname,
port=self.port, client_id=self.client_id,
keepalive=self.keepalive, will=self.will,
auth=self.auth, tls=self.tls, qos=self.qos)
def publish_multiple(self, topic, msg):
publish.multiple(topic, msg, hostname=self.hostname,
port=self.port, client_id=self.client_id,
keepalive=self.keepalive, will=self.will,
auth=self.auth, tls=self.tls, qos=self.qos)
def get_options():
parser = argparse.ArgumentParser(
description="Daemon to publish a gerrit event stream on MQTT")
parser.add_argument('-f', '--foreground',
default=False,
action='store_true',
help="Run in foreground")
parser.add_argument('conffile', nargs=1, help="Configuration file")
return parser.parse_args()
def get_topic(base_topic, event):
project = event.get('project', '')
event_type = event.get('type', '')
if not project:
if 'change' in event:
project = event['change'].get('project', '')
elif 'refUpdate' in event:
project = event['refUpdate'].get('project', '')
pieces = [base_topic, project, event_type]
topic = "/".join(pieces)
return topic
def _main(args, config):
if config.has_option('gerrit', 'port'):
port = config.get('gerrit', 'port')
else:
port = 29418
gerrit = GerritStream(
config.get('gerrit', 'username'),
config.get('gerrit', 'hostname'),
config.get('gerrit', 'key'),
port=port)
if config.has_option('mqtt', 'port'):
mqtt_port = config.get('mqtt', 'port')
else:
mqtt_port = 1883
if config.has_option('mqtt', 'keepalive'):
keepalive = config.get('mqtt', 'keepalive')
else:
keepalive = 60
# Configure auth
auth = None
if config.has_option('mqtt', 'username'):
mqtt_username = config.get('mqtt', 'username')
else:
mqtt_username = None
if config.has_option('mqtt', 'password'):
mqtt_password = config.get('mqtt', 'password')
else:
mqtt_password = None
if mqtt_username:
auth = {'username': mqtt_username}
if mqtt_password:
auth['password'] = mqtt_password
# QOS setting
if config.has_option('mqtt', 'qos'):
mqtt_qos = config.getint('mqtt', 'qos')
else:
mqtt_qos = 0
mqttqueue = PushMQTT(
config.get('mqtt', 'hostname'),
port=mqtt_port,
keepalive=keepalive,
auth=auth,
qos=mqtt_qos)
base_topic = config.get('mqtt', 'topic')
while True:
event = gerrit.get_event()
topic = get_topic(base_topic, event)
if event:
mqttqueue.publish_single(topic, json.dumps(event))
def main():
args = get_options()
config = ConfigParser.ConfigParser()
config.read(args.conffile)
if config.has_option('default', 'pidfile'):
pid_fn = os.path.expanduser(config.get('default', 'pidfile'))
else:
pid_fn = '/var/run/germqtt.pid'
if args.foreground:
_main(args, config)
else:
pid = pid_file_module.TimeoutPIDLockFile(pid_fn, 10)
with daemon.DaemonContext(pidfile=pid):
_main(args, config)
if __name__ == "__main__":
main()

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@ -1,37 +0,0 @@
# Copyright (c) 2016 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import fixtures
import testtools
class TestCase(testtools.TestCase):
true = ('True', 'true', '1', 'yes')
def setUp(self):
super(TestCase, self).setUp()
if os.environ.get('OS_STDOUT_CAPTURE') in self.true:
stdout = self.useFixture(fixtures.StringStream('stdout')).stream
self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout))
if os.environ.get('OS_STDERR_CAPTURE') in self.true:
stderr = self.useFixture(fixtures.StringStream('stderr')).stream
self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))
if (os.environ.get('OS_LOG_CAPTURE') != 'False' and
os.environ.get('OS_LOG_CAPTURE') != '0'):
self.useFixture(fixtures.LoggerFixture(nuke_handlers=False,
level=None))

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# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from germqtt import germqtt
from germqtt.tests import base
class TestGermqtt(base.TestCase):
def test_get_topic_with_project(self):
base_topic = 'gerrit'
event = {
'project': 'fake_project',
'type': 'fake-type',
}
full_topic = germqtt.get_topic(base_topic, event)
self.assertEqual('gerrit/fake_project/fake-type', full_topic)

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# The order of packages is significant, because pip processes them in the order
# of appearance. Changing the order has an impact on the overall integration
# process, which may cause wedges in the gate later.
pbr>=1.6 # Apache-2.0
six>=1.9.0 # MIT
paho-mqtt>=1.1
gerritlib>=0.6.0
python-daemon

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[metadata]
name = germqtt
summary = Publish Gerrit Stream on MQTT
description-file =
README.rst
author = Matthew Treinish
author-email = mtreinish@kortar.org
classifier =
Intended Audience :: Information Technology
Intended Audience :: System Administrators
Intended Audience :: Developers
License :: OSI Approved :: Apache Software License
Operating System :: POSIX :: Linux
Programming Language :: Python
Programming Language :: Python :: 2
Programming Language :: Python :: 2.7
Programming Language :: Python :: 3
Programming Language :: Python :: 3.4
[files]
packages =
germqtt
[entry_points]
console_scripts =
germqtt = germqtt.germqtt:main
[build_sphinx]
all_files = 1
build-dir = doc/build
source-dir = doc/source
[pbr]
warnerrors = True
[wheel]
universal = 1

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# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
import setuptools
# In python < 2.7.4, a lazy loading of package `pbr` will break
# setuptools if some other modules registered functions in `atexit`.
# solution from: http://bugs.python.org/issue15881#msg170215
try:
import multiprocessing # noqa
except ImportError:
pass
setuptools.setup(
setup_requires=['pbr>=1.8'],
pbr=True)

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# The order of packages is significant, because pip processes them in the order
# of appearance. Changing the order has an impact on the overall integration
# process, which may cause wedges in the gate later.
hacking<0.11,>=0.10.2 # Apache-2.0
coverage>=3.6 # Apache-2.0
sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2 # BSD
oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
os-testr>=0.6.0

36
tox.ini
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[tox]
minversion = 1.6
envlist = py33,py34,py26,py27,pypy,pep8
skipsdist = True
[testenv]
usedevelop = True
install_command = pip install -U {opts} {packages}
setenv =
VIRTUAL_ENV={envdir}
whitelist_externals = find
deps = -r{toxinidir}/requirements.txt
-r{toxinidir}/test-requirements.txt
commands =
find . -type f -name "*.pyc" -delete
ostestr {posargs}
[testenv:pep8]
commands = flake8
[testenv:venv]
commands = {posargs}
[testenv:cover]
commands = python setup.py testr --coverage --testr-args='{posargs}'
[testenv:docs]
commands = python setup.py build_sphinx
[flake8]
# E123, E125 skipped as they are invalid PEP-8.
show-source = True
ignore = E123,E125,E129
builtins = _
exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build