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added faafo example

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Sebastian Rieger
2020-04-21 15:46:58 +02:00
parent b7143441f2
commit 5b953bb5ed
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.tox
.vagrant
*.pyc
.venv
*.egg-info
*.egg
.eggs
.*.swp
build
*.log
*.png
AUTHORS
ChangeLog
dist

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If you would like to contribute to the development of OpenStack,
you must follow the steps documented at:
http://docs.openstack.org/infra/manual/developers.html#getting-started
Once those steps have been completed, changes to OpenStack
should be submitted for review via the Gerrit tool, following
the workflow documented at:
http://docs.openstack.org/infra/manual/developers.html#development-workflow
Pull requests submitted through GitHub will be ignored.
Bugs should be filed on Launchpad, not GitHub:
https://bugs.launchpad.net/faafo

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Local copy of the former faafo OpenStack Tutorial from developer.openstack.org
========================
Team and repository tags
========================
.. image:: http://governance.openstack.org/badges/faafo.svg
:target: http://governance.openstack.org/reference/tags/index.html
.. Change things from this point on
===========================================
First App Application for OpenStack (faafo)
===========================================
Developer documentation, the source of which is in ``doc/source/``, is
published at:
http://docs.openstack.org/developer/faafo/
Bugs and feature requests are tracked on Launchpad at:
https://bugs.launchpad.net/faafo
Contributors are encouraged to join IRC (``#openstackfirstapp`` on freenode):
https://wiki.openstack.org/wiki/IRC
For information on contributing to the First App Application for OpenStack,
see ``CONTRIBUTING.rst``.

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# -*- mode: ruby -*-
# vi: set ft=ruby :
# 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.
Vagrant.configure(2) do |config|
config.vm.box = 'ubuntu/trusty64'
config.vm.provider 'virtualbox' do |vb|
vb.memory = 1024
vb.cpus = 1
end
config.ssh.shell = 'bash -c "BASH_ENV=/etc/profile exec bash"'
config.cache.scope = :box if Vagrant.has_plugin?('vagrant-cachier')
config.vm.provision "shell",
inline: "apt-get update && apt-get upgrade -y"
config.vm.define "services", primary: true do |node|
node.vm.hostname= "services"
node.vm.network :private_network, ip: '10.0.88.10'
node.vm.provision "shell",
inline: "/vagrant/contrib/install.sh -i messaging -i database"
node.vm.network 'forwarded_port', guest: 15_672, host: 15_672
end
config.vm.define "api" do |node|
node.vm.hostname= "api"
node.vm.network :private_network, ip: '10.0.88.20'
node.vm.provision "shell",
inline: "/vagrant/contrib/install.sh -i faafo -r api -d 'mysql://faafo:password@10.0.88.10:3306/faafo' -m 'amqp://guest:guest@10.0.88.10:5672/'"
node.vm.network 'forwarded_port', guest: 80, host: 1080
end
config.vm.define "worker" do |node|
node.vm.hostname= "worker"
node.vm.network :private_network, ip: '10.0.88.30'
node.vm.provision "shell",
inline: "/vagrant/contrib/install.sh -i faafo -r worker -m 'amqp://guest:guest@10.0.88.10:5672/' -e 'http://10.0.88.20'"
end
end

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#!/usr/bin/env python
# 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 copy
import json
import random
import uuid
from oslo_config import cfg
from oslo_log import log
from prettytable import PrettyTable
import requests
from faafo import version
LOG = log.getLogger('faafo.client')
CONF = cfg.CONF
def get_random_task():
random.seed()
if CONF.command.width:
width = int(CONF.command.width)
else:
width = random.randint(int(CONF.command.min_width),
int(CONF.command.max_width))
if CONF.command.height:
height = int(CONF.command.height)
else:
height = random.randint(int(CONF.command.min_height),
int(CONF.command.max_height))
if CONF.command.iterations:
iterations = int(CONF.command.iterations)
else:
iterations = random.randint(int(CONF.command.min_iterations),
int(CONF.command.max_iterations))
if CONF.command.xa:
xa = float(CONF.command.xa)
else:
xa = random.uniform(float(CONF.command.min_xa),
float(CONF.command.max_xa))
if CONF.command.xb:
xb = float(CONF.command.xb)
else:
xb = random.uniform(float(CONF.command.min_xb),
float(CONF.command.max_xb))
if CONF.command.ya:
ya = float(CONF.command.ya)
else:
ya = random.uniform(float(CONF.command.min_ya),
float(CONF.command.max_ya))
if CONF.command.yb:
yb = float(CONF.command.yb)
else:
yb = random.uniform(float(CONF.command.min_yb),
float(CONF.command.max_yb))
task = {
'uuid': str(uuid.uuid4()),
'width': width,
'height': height,
'iterations': iterations, 'xa': xa,
'xb': xb,
'ya': ya,
'yb': yb
}
return task
def do_get_fractal():
LOG.error("command 'download' not yet implemented")
def do_show_fractal():
LOG.info("showing fractal %s" % CONF.command.uuid)
result = requests.get("%s/v1/fractal/%s" %
(CONF.endpoint_url, CONF.command.uuid))
if result.status_code == 200:
data = json.loads(result.text)
output = PrettyTable(["Parameter", "Value"])
output.align["Parameter"] = "l"
output.align["Value"] = "l"
output.add_row(["uuid", data['uuid']])
output.add_row(["duration", "%f seconds" % data['duration']])
output.add_row(["dimensions", "%d x %d pixels" %
(data['width'], data['height'])])
output.add_row(["iterations", data['iterations']])
output.add_row(["xa", data['xa']])
output.add_row(["xb", data['xb']])
output.add_row(["ya", data['ya']])
output.add_row(["yb", data['yb']])
output.add_row(["size", "%d bytes" % data['size']])
output.add_row(["checksum", data['checksum']])
output.add_row(["generated_by", data['generated_by']])
print(output)
else:
LOG.error("fractal '%s' not found" % CONF.command.uuid)
def do_list_fractals():
LOG.info("listing all fractals")
fractals = get_fractals()
output = PrettyTable(["UUID", "Dimensions", "Filesize"])
for fractal in fractals:
output.add_row([
fractal["uuid"],
"%d x %d pixels" % (fractal["width"], fractal["height"]),
"%d bytes" % (fractal["size"] or 0),
])
print(output)
def get_fractals(page=1):
result = requests.get("%s/v1/fractal?page=%d" %
(CONF.endpoint_url, page))
fractals = []
if result.status_code == 200:
data = json.loads(result.text)
if page < data['total_pages']:
fractals = data['objects'] + get_fractals(page + 1)
else:
return data['objects']
return fractals
def do_delete_fractal():
LOG.info("deleting fractal %s" % CONF.command.uuid)
result = requests.delete("%s/v1/fractal/%s" %
(CONF.endpoint_url, CONF.command.uuid))
LOG.debug("result: %s" %result)
def do_create_fractal():
random.seed()
if CONF.command.tasks:
number = int(CONF.command.tasks)
else:
number = random.randint(int(CONF.command.min_tasks),
int(CONF.command.max_tasks))
LOG.info("generating %d task(s)" % number)
for i in xrange(0, number):
task = get_random_task()
LOG.debug("created task %s" % task)
# NOTE(berendt): only necessary when using requests < 2.4.2
headers = {'Content-type': 'application/json',
'Accept': 'text/plain'}
requests.post("%s/v1/fractal" % CONF.endpoint_url,
json.dumps(task), headers=headers)
def add_command_parsers(subparsers):
parser = subparsers.add_parser('create')
parser.set_defaults(func=do_create_fractal)
parser.add_argument("--height", default=None,
help="The height of the generate image.")
parser.add_argument("--min-height", default=256,
help="The minimum height of the generate image.")
parser.add_argument("--max-height", default=1024,
help="The maximum height of the generate image.")
parser.add_argument("--width", default=None,
help="The width of the generated image.")
parser.add_argument("--min-width", default=256,
help="The minimum width of the generated image.")
parser.add_argument("--max-width", default=1024,
help="The maximum width of the generated image.")
parser.add_argument("--iterations", default=None,
help="The number of iterations.")
parser.add_argument("--min-iterations", default=128,
help="The minimum number of iterations.")
parser.add_argument("--max-iterations", default=512,
help="The maximum number of iterations.")
parser.add_argument("--tasks", default=None,
help="The number of generated fractals.")
parser.add_argument("--min-tasks", default=1,
help="The minimum number of generated fractals.")
parser.add_argument("--max-tasks", default=10,
help="The maximum number of generated fractals.")
parser.add_argument("--xa", default=None,
help="The value for the parameter 'xa'.")
parser.add_argument("--min-xa", default=-1.0,
help="The minimum value for the parameter 'xa'.")
parser.add_argument("--max-xa", default=-4.0,
help="The maximum value for the parameter 'xa'.")
parser.add_argument("--xb", default=None,
help="The value for the parameter 'xb'.")
parser.add_argument("--min-xb", default=1.0,
help="The minimum value for the parameter 'xb'.")
parser.add_argument("--max-xb", default=4.0,
help="The maximum value for the parameter 'xb'.")
parser.add_argument("--ya", default=None,
help="The value for the parameter 'ya'.")
parser.add_argument("--min-ya", default=-0.5,
help="The minimum value for the parameter 'ya'.")
parser.add_argument("--max-ya", default=-3,
help="The maximum value for the parameter 'ya'.")
parser.add_argument("--yb", default=None,
help="The value for the parameter 'yb'.")
parser.add_argument("--min-yb", default=0.5,
help="The minimum value for the parameter 'yb'.")
parser.add_argument("--max-yb", default=3,
help="The maximum value for the parameter 'yb'.")
parser = subparsers.add_parser('delete')
parser.set_defaults(func=do_delete_fractal)
parser.add_argument("uuid", help="Fractal to delete.")
parser = subparsers.add_parser('show')
parser.set_defaults(func=do_show_fractal)
parser.add_argument("uuid", help="Fractal to show.")
parser = subparsers.add_parser('get')
parser.set_defaults(func=do_get_fractal)
parser.add_argument("uuid", help="Fractal to download.")
parser = subparsers.add_parser('list')
parser.set_defaults(func=do_list_fractals)
client_commands = cfg.SubCommandOpt('command', title='Commands',
help='Show available commands.',
handler=add_command_parsers)
CONF.register_cli_opts([client_commands])
client_cli_opts = [
cfg.StrOpt('endpoint-url',
default='http://localhost',
help='API connection URL')
]
CONF.register_cli_opts(client_cli_opts)
if __name__ == '__main__':
log.register_options(CONF)
log.set_defaults()
CONF(project='client', prog='faafo-client',
version=version.version_info.version_string())
log.setup(CONF, 'client',
version=version.version_info.version_string())
CONF.command.func()

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#!/usr/bin/env python
# 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
import kombu
from oslo_config import cfg
from oslo_log import log
from faafo.worker import service as worker
from faafo import version
LOG = log.getLogger('faafo.worker')
CONF = cfg.CONF
# If ../faafo/__init__.py exists, add ../ to Python search path, so that
# it will override what happens to be installed in /usr/(local/)lib/python...
possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
os.pardir,
os.pardir))
if os.path.exists(os.path.join(possible_topdir, 'faafo', '__init__.py')):
sys.path.insert(0, possible_topdir)
if __name__ == '__main__':
log.register_options(CONF)
log.set_defaults()
CONF(project='worker', prog='faafo-worker',
default_config_files=['/etc/faafo/faafo.conf'],
version=version.version_info.version_string())
log.setup(CONF, 'worker',
version=version.version_info.version_string())
connection = kombu.Connection(CONF.transport_url)
server = worker.Worker(connection)
try:
server.run()
except KeyboardInterrupt:
LOG.info("Caught keyboard interrupt. Exiting.")

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#!/bin/bash
# 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.
if [[ -e /etc/os-release ]]; then
# NOTE(berendt): support for CentOS/RHEL/openSUSE/SLES will be added in the future
source /etc/os-release
INSTALL_DATABASE=0
INSTALL_FAAFO=0
INSTALL_MESSAGING=0
RUN_API=0
RUN_DEMO=0
RUN_WORKER=0
URL_DATABASE='sqlite:////tmp/sqlite.db'
URL_ENDPOINT='http://127.0.0.1'
URL_MESSAGING='amqp://guest:guest@localhost:5672/'
while getopts e:m:d:i:r: FLAG; do
case $FLAG in
i)
case $OPTARG in
messaging)
INSTALL_MESSAGING=1
;;
database)
INSTALL_DATABASE=1
;;
faafo)
INSTALL_FAAFO=1
;;
esac
;;
r)
case $OPTARG in
demo)
RUN_DEMO=1
;;
api)
RUN_API=1
;;
worker)
RUN_WORKER=1
;;
esac
;;
e)
URL_ENDPOINT=$OPTARG
;;
m)
URL_MESSAGING=$OPTARG
;;
d)
URL_DATABASE=$OPTARG
;;
*)
echo "error: unknown option $FLAG"
exit 1
;;
esac
done
if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
sudo apt-get update
elif [[ $ID = 'fedora' ]]; then
sudo dnf update -y
fi
if [[ $INSTALL_DATABASE -eq 1 ]]; then
if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
sudo DEBIAN_FRONTEND=noninteractive apt-get install -y mysql-server python-mysqldb
sudo sed -i -e "/bind-address/d" /etc/mysql/my.cnf
sudo service mysql restart
elif [[ $ID = 'fedora' ]]; then
sudo dnf install -y mariadb-server python-mysql
printf "[mysqld]\nbind-address = 127.0.0.1\n" | sudo tee /etc/my.cnf.d/faafo.conf
sudo systemctl enable mariadb
sudo systemctl start mariadb
else
echo "error: distribution $ID not supported"
exit 1
fi
sudo mysqladmin password password
sudo mysql -uroot -ppassword mysql -e "CREATE DATABASE IF NOT EXISTS faafo; GRANT ALL PRIVILEGES ON faafo.* TO 'faafo'@'%' IDENTIFIED BY 'password';"
URL_DATABASE='mysql://root:password@localhost/faafo'
fi
if [[ $INSTALL_MESSAGING -eq 1 ]]; then
if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
sudo apt-get install -y rabbitmq-server
elif [[ $ID = 'fedora' ]]; then
sudo dnf install -y rabbitmq-server
sudo systemctl enable rabbitmq-server
sudo systemctl start rabbitmq-server
else
echo "error: distribution $ID not supported"
exit 1
fi
fi
if [[ $INSTALL_FAAFO -eq 1 ]]; then
if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
sudo apt-get install -y python-dev python-pip supervisor git zlib1g-dev libmysqlclient-dev python-mysqldb
# Following is needed because of
# https://bugs.launchpad.net/ubuntu/+source/supervisor/+bug/1594740
if [ $(lsb_release --short --codename) = xenial ]; then
# Make sure the daemon is enabled.
if ! systemctl --quiet is-enabled supervisor; then
systemctl enable supervisor
fi
# Make sure the daemon is started.
if ! systemctl --quiet is-active supervisor; then
systemctl start supervisor
fi
fi
elif [[ $ID = 'fedora' ]]; then
sudo dnf install -y python-devel python-pip supervisor git zlib-devel mariadb-devel gcc which python-mysql
sudo systemctl enable supervisord
sudo systemctl start supervisord
#elif [[ $ID = 'opensuse' || $ID = 'sles' ]]; then
# sudo zypper install -y python-devel python-pip
else
echo "error: distribution $ID not supported"
exit 1
fi
git clone https://git.openstack.org/openstack/faafo
cd faafo
# following line required by bug 1636150
sudo pip install --upgrade pbr
sudo pip install -r requirements.txt
sudo python setup.py install
sudo sed -i -e "s#transport_url = .*#transport_url = $URL_MESSAGING#" /etc/faafo/faafo.conf
sudo sed -i -e "s#database_url = .*#database_url = $URL_DATABASE#" /etc/faafo/faafo.conf
sudo sed -i -e "s#endpoint_url = .*#endpoint_url = $URL_ENDPOINT#" /etc/faafo/faafo.conf
fi
if [[ $RUN_API -eq 1 ]]; then
faafo_api="
[program:faafo_api]
command=$(which faafo-api)
priority=10"
if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
echo "$faafo_api" | sudo tee -a /etc/supervisor/conf.d/faafo.conf
elif [[ $ID = 'fedora' ]]; then
echo "$faafo_api" | sudo tee -a /etc/supervisord.d/faafo.ini
else
echo "error: distribution $ID not supported"
exit 1
fi
fi
if [[ $RUN_WORKER -eq 1 ]]; then
faafo_worker="
[program:faafo_worker]
command=$(which faafo-worker)
priority=20"
if [[ $ID = 'ubuntu' || $ID = 'debian' ]]; then
echo "$faafo_worker" | sudo tee -a /etc/supervisor/conf.d/faafo.conf
elif [[ $ID = 'fedora' ]]; then
echo "$faafo_worker" | sudo tee -a /etc/supervisord.d/faafo.ini
else
echo "error: distribution $ID not supported"
exit 1
fi
fi
if [[ $RUN_WORKER -eq 1 || $RUN_API -eq 1 ]]; then
sudo supervisorctl reload
sleep 5
fi
if [[ $RUN_DEMO -eq 1 && $RUN_API -eq 1 ]]; then
faafo --endpoint-url $URL_ENDPOINT --debug create
fi
else
exit 1
fi

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#!/usr/bin/env python
# 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 json
import requests
url = 'http://127.0.0.1/api/fractal'
headers = {'Content-Type': 'application/json'}
uuid = '13bf15a8-9f6c-4d59-956f-7d20f7484687'
data = {
'uuid': uuid,
'width': 100,
'height': 100,
'iterations': 10,
'xa': 1.0,
'xb': -1.0,
'ya': 1.0,
'yb': -1.0,
}
response = requests.post(url, data=json.dumps(data), headers=headers)
assert response.status_code == 201
response = requests.get(url, headers=headers)
assert response.status_code == 200
print(response.json())
response = requests.get(url + '/' + uuid, headers=headers)
assert response.status_code == 200
print(response.json())
data = {
'checksum': 'c6fef4ef13a577066c2281b53c82ce2c7e94e',
'duration': 10.12
}
response = requests.put(url + '/' + uuid, data=json.dumps(data),
headers=headers)
assert response.status_code == 200
response = requests.get(url + '/' + uuid, headers=headers)
assert response.status_code == 200
print(response.json())
response = requests.delete(url + '/' + uuid, headers=headers)
assert response.status_code == 204

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# 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.
copyright = u'2015, OpenStack contributors'
master_doc = 'index'
project = u'First App Application for OpenStack'
source_suffix = '.rst'

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Development
===========
Vagrant environment
-------------------
The `Vagrant <https://www.vagrantup.com/>`_ environment and the `Ansible <http://www.ansible.com/home>`_
playbook is used only for local tests and development of the application.
The installation of Vagrant is described at https://docs.vagrantup.com/v2/installation/index.html.
To speedup the provisioning you can install the Vagrant plugin `vagrant-cachier <https://github.com/fgrehm/vagrant-cachier>`_.
.. code::
$ vagrant plugin install vagrant-cachier
Bootstrap the Vagrant environment.
.. code::
$ vagrant up
Now it is possible to login with SSH.
.. code::
$ vagrant ssh
Open a new screen or tmux session. Aftwards run the api, worker, and producer
services in the foreground, each service in a separate window.
* :code:`faafo-api`
* :code:`faafo-worker`
* :code:`faafo-producer`
RabbitMQ server
~~~~~~~~~~~~~~~
The webinterface of the RabbitMQ server is reachable on TCP port :code:`15672`. The login is
possible with the user :code:`guest` and the password :code:`guest`.
MySQL server
~~~~~~~~~~~~
The password of the user :code:`root` is :code:`secretsecret`. The password of the user :code:`faafo`
for the database :code:`faafo` is also :code:`secretsecret`.
Virtual environment
-------------------
Create a new virtual environment, install all required dependencies and
the application itself.
.. code::
$ virtualenv .venv
$ source .venv/bin/activate
$ pip install -r requirements.txt
$ python setup.py install
Open a new screen or tmux session. Aftwards run the api and worker
services in the foreground, each service in a separate window.
.. code::
$ source .venv/bin/activate; faafo-api
$ source .venv/bin/activate; faafo-worker

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digraph {
API -> Database [color=green];
API -> Database [color=orange];
Database -> API [color=red];
API -> Webinterface [color=red];
Producer -> API [color=orange];
Producer -> API [color=green];
Producer -> "Queue Service" [color=orange];
"Queue Service" -> Worker [color=orange];
Worker -> "Image File" [color=blue];
Worker -> "Queue Service" [color=green];
"Queue Service" -> Producer [color=green];
"Image File" -> "Storage Backend" [color=blue];
"Storage Backend" -> Webinterface [color=red];
}

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#!/bin/sh
dot -T png -o diagram.png diagram.dot

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Implementation
==============
Frameworks
----------
* http://flask.pocoo.org/
* http://python-requests.org
* http://www.sqlalchemy.org/
* https://github.com/celery/kombu
* https://pillow.readthedocs.org/

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First App Application for OpenStack
===================================
Contents:
.. toctree::
:maxdepth: 2
workflow
implementation
installation
usage
development
references

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Installation
============
To install the ``First App Application for OpenStack`` run the following command.
.. code::
pip install faafo

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References
==========
* http://en.wikipedia.org/wiki/Julia_set
* http://en.wikipedia.org/wiki/Mandelbrot_set
* http://code.activestate.com/recipes/577120-julia-fractals/

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Usage
=====
Example image
-------------
.. image:: images/example.png
Example outputs
---------------
Producer service
~~~~~~~~~~~~~~~~
.. code::
2015-03-25 23:01:29.308 22526 INFO faafo.producer [-] generating 1 task(s)
2015-03-25 23:01:29.344 22526 INFO faafo.producer [-] generated task: {'width': 510, 'yb': 2.478654026560605, 'uuid': '212e8c23-e67f-4bd3-86e1-5a5e811ee2f4', 'iterations': 281, 'xb': 1.1428457603077387, 'xa': -3.3528957195683087, 'ya': -2.1341119130263717, 'height': 278}
2015-03-25 23:01:30.295 22526 INFO faafo.producer [-] task 212e8c23-e67f-4bd3-86e1-5a5e811ee2f4 processed: {u'duration': 0.8725259304046631, u'checksum': u'b22d975c4f9dc77df5db96ce6264a4990d865dd8f800aba2ac03a065c2f09b1e', u'uuid': u'212e8c23-e67f-4bd3-86e1-5a5e811ee2f4'}
Worker service
~~~~~~~~~~~~~~
.. code::
2015-03-25 23:01:29.378 22518 INFO faafo.worker [-] processing task 212e8c23-e67f-4bd3-86e1-5a5e811ee2f4
2015-03-25 23:01:30.251 22518 INFO faafo.worker [-] task 212e8c23-e67f-4bd3-86e1-5a5e811ee2f4 processed in 0.872526 seconds
2015-03-25 23:01:30.268 22518 INFO faafo.worker [-] saved result of task 212e8c23-e67f-4bd3-86e1-5a5e811ee2f4 to file /home/vagrant/212e8c23-e67f-4bd3-86e1-5a5e811ee2f4.png
API Service
~~~~~~~~~~~
.. code::
2015-03-25 23:01:29.342 22511 INFO werkzeug [-] 127.0.0.1 - - [25/Mar/2015 23:01:29] "POST /api/fractal HTTP/1.1" 201 -
2015-03-25 23:01:30.317 22511 INFO werkzeug [-] 127.0.0.1 - - [25/Mar/2015 23:01:30] "PUT /api/fractal/212e8c23-e67f-4bd3-86e1-5a5e811ee2f4 HTTP/1.1" 200 -
Example webinterface view
-------------------------
.. image:: images/screenshot_webinterface.png

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Workflow
--------
.. image:: images/diagram.png

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[DEFAULT]
#
# From faafo.api
#
# Listen address. (string value)
#listen_address = 0.0.0.0
# Bind port. (integer value)
#bind_port = 80
# Database connection URL. (string value)
database_url = sqlite:////tmp/sqlite.db
#
# From faafo.queues
#
# AMQP connection URL. (string value)
transport_url = amqp://guest:guest@localhost:5672//
#
# From faafo.worker
#
# API connection URL (string value)
endpoint_url = http://localhost
#
# From oslo.log
#
# Print debugging output (set logging level to DEBUG instead of
# default WARNING level). (boolean value)
#debug = false
# The name of a logging configuration file. This file is appended to
# any existing logging configuration files. For details about logging
# configuration files, see the Python logging module documentation.
# (string value)
# Deprecated group/name - [DEFAULT]/log_config
#log_config_append = <None>
# DEPRECATED. A logging.Formatter log message format string which may
# use any of the available logging.LogRecord attributes. This option
# is deprecated. Please use logging_context_format_string and
# logging_default_format_string instead. (string value)
#log_format = <None>
# Format string for %%(asctime)s in log records. Default: %(default)s
# . (string value)
#log_date_format = %Y-%m-%d %H:%M:%S
# (Optional) Name of log file to output to. If no default is set,
# logging will go to stdout. (string value)
# Deprecated group/name - [DEFAULT]/logfile
#log_file = <None>
# (Optional) The base directory used for relative --log-file paths.
# (string value)
# Deprecated group/name - [DEFAULT]/logdir
#log_dir = <None>
# Use syslog for logging. Existing syslog format is DEPRECATED during
# I, and will change in J to honor RFC5424. (boolean value)
#use_syslog = false
# (Optional) Enables or disables syslog rfc5424 format for logging. If
# enabled, prefixes the MSG part of the syslog message with APP-NAME
# (RFC5424). The format without the APP-NAME is deprecated in I, and
# will be removed in J. (boolean value)
#use_syslog_rfc_format = false
# Syslog facility to receive log lines. (string value)
#syslog_log_facility = LOG_USER
# Log output to standard error. (boolean value)
#use_stderr = true
# Format string to use for log messages with context. (string value)
#logging_context_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [%(request_id)s %(user_identity)s] %(instance)s%(message)s
# Format string to use for log messages without context. (string
# value)
#logging_default_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-] %(instance)s%(message)s
# Data to append to log format when level is DEBUG. (string value)
#logging_debug_format_suffix = %(funcName)s %(pathname)s:%(lineno)d
# Prefix each line of exception output with this format. (string
# value)
#logging_exception_prefix = %(asctime)s.%(msecs)03d %(process)d TRACE %(name)s %(instance)s
# List of logger=LEVEL pairs. (list value)
#default_log_levels = amqp=WARN,amqplib=WARN,boto=WARN,qpid=WARN,sqlalchemy=WARN,suds=INFO,oslo.messaging=INFO,iso8601=WARN,requests.packages.urllib3.connectionpool=WARN,urllib3.connectionpool=WARN,websocket=WARN,requests.packages.urllib3.util.retry=WARN,urllib3.util.retry=WARN,keystonemiddleware=WARN,routes.middleware=WARN,stevedore=WARN
# Enables or disables publication of error events. (boolean value)
#publish_errors = false
# Enables or disables fatal status of deprecations. (boolean value)
#fatal_deprecations = false
# The format for an instance that is passed with the log message.
# (string value)
#instance_format = "[instance: %(uuid)s] "
# The format for an instance UUID that is passed with the log message.
# (string value)
#instance_uuid_format = "[instance: %(uuid)s] "

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[DEFAULT]
#
# From faafo.api
#
# Listen address. (string value)
#listen_address = 0.0.0.0
# Bind port. (integer value)
#bind_port = 80
# Database connection URL. (string value)
#database_url = sqlite:////tmp/sqlite.db
#
# From faafo.queues
#
# AMQP connection URL. (string value)
#transport_url = amqp://guest:guest@localhost:5672//
#
# From faafo.worker
#
# API connection URL (string value)
#endpoint_url = http://localhost
#
# From oslo.log
#
# If set to true, the logging level will be set to DEBUG instead of
# the default INFO level. (boolean value)
#debug = false
# If set to false, the logging level will be set to WARNING instead of
# the default INFO level. (boolean value)
# This option is deprecated for removal.
# Its value may be silently ignored in the future.
#verbose = true
# The name of a logging configuration file. This file is appended to
# any existing logging configuration files. For details about logging
# configuration files, see the Python logging module documentation.
# Note that when logging configuration files are used then all logging
# configuration is set in the configuration file and other logging
# configuration options are ignored (for example,
# logging_context_format_string). (string value)
# Deprecated group/name - [DEFAULT]/log_config
#log_config_append = <None>
# Defines the format string for %%(asctime)s in log records. Default:
# %(default)s . This option is ignored if log_config_append is set.
# (string value)
#log_date_format = %Y-%m-%d %H:%M:%S
# (Optional) Name of log file to send logging output to. If no default
# is set, logging will go to stderr as defined by use_stderr. This
# option is ignored if log_config_append is set. (string value)
# Deprecated group/name - [DEFAULT]/logfile
#log_file = <None>
# (Optional) The base directory used for relative log_file paths.
# This option is ignored if log_config_append is set. (string value)
# Deprecated group/name - [DEFAULT]/logdir
#log_dir = <None>
# Uses logging handler designed to watch file system. When log file is
# moved or removed this handler will open a new log file with
# specified path instantaneously. It makes sense only if log_file
# option is specified and Linux platform is used. This option is
# ignored if log_config_append is set. (boolean value)
#watch_log_file = false
# Use syslog for logging. Existing syslog format is DEPRECATED and
# will be changed later to honor RFC5424. This option is ignored if
# log_config_append is set. (boolean value)
#use_syslog = false
# Syslog facility to receive log lines. This option is ignored if
# log_config_append is set. (string value)
#syslog_log_facility = LOG_USER
# Log output to standard error. This option is ignored if
# log_config_append is set. (boolean value)
#use_stderr = true
# Format string to use for log messages with context. (string value)
#logging_context_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [%(request_id)s %(user_identity)s] %(instance)s%(message)s
# Format string to use for log messages when context is undefined.
# (string value)
#logging_default_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-] %(instance)s%(message)s
# Additional data to append to log message when logging level for the
# message is DEBUG. (string value)
#logging_debug_format_suffix = %(funcName)s %(pathname)s:%(lineno)d
# Prefix each line of exception output with this format. (string
# value)
#logging_exception_prefix = %(asctime)s.%(msecs)03d %(process)d ERROR %(name)s %(instance)s
# Defines the format string for %(user_identity)s that is used in
# logging_context_format_string. (string value)
#logging_user_identity_format = %(user)s %(tenant)s %(domain)s %(user_domain)s %(project_domain)s
# List of package logging levels in logger=LEVEL pairs. This option is
# ignored if log_config_append is set. (list value)
#default_log_levels = amqp=WARN,amqplib=WARN,boto=WARN,qpid=WARN,sqlalchemy=WARN,suds=INFO,oslo.messaging=INFO,iso8601=WARN,requests.packages.urllib3.connectionpool=WARN,urllib3.connectionpool=WARN,websocket=WARN,requests.packages.urllib3.util.retry=WARN,urllib3.util.retry=WARN,keystonemiddleware=WARN,routes.middleware=WARN,stevedore=WARN,taskflow=WARN,keystoneauth=WARN,oslo.cache=INFO,dogpile.core.dogpile=INFO
# Enables or disables publication of error events. (boolean value)
#publish_errors = false
# The format for an instance that is passed with the log message.
# (string value)
#instance_format = "[instance: %(uuid)s] "
# The format for an instance UUID that is passed with the log message.
# (string value)
#instance_uuid_format = "[instance: %(uuid)s] "
# Enables or disables fatal status of deprecations. (boolean value)
#fatal_deprecations = false

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[DEFAULT]
output_file = etc/faafo.conf.sample
namespace = faafo.worker
namespace = faafo.api
namespace = oslo.log
namespace = faafo.queues

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# 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 base64
import copy
import cStringIO
from pkg_resources import resource_filename
import flask
import flask.ext.restless
import flask.ext.sqlalchemy
from flask_bootstrap import Bootstrap
from kombu import Connection
from kombu.pools import producers
from oslo_config import cfg
from oslo_log import log
from PIL import Image
from sqlalchemy.dialects import mysql
from faafo import queues
from faafo import version
LOG = log.getLogger('faafo.api')
CONF = cfg.CONF
api_opts = [
cfg.StrOpt('listen-address',
default='0.0.0.0',
help='Listen address.'),
cfg.IntOpt('bind-port',
default='80',
help='Bind port.'),
cfg.StrOpt('database-url',
default='sqlite:////tmp/sqlite.db',
help='Database connection URL.')
]
CONF.register_opts(api_opts)
log.register_options(CONF)
log.set_defaults()
CONF(project='api', prog='faafo-api',
default_config_files=['/etc/faafo/faafo.conf'],
version=version.version_info.version_string())
log.setup(CONF, 'api',
version=version.version_info.version_string())
template_path = resource_filename(__name__, "templates")
app = flask.Flask('faafo.api', template_folder=template_path)
app.config['DEBUG'] = CONF.debug
app.config['SQLALCHEMY_DATABASE_URI'] = CONF.database_url
db = flask.ext.sqlalchemy.SQLAlchemy(app)
Bootstrap(app)
def list_opts():
"""Entry point for oslo-config-generator."""
return [(None, copy.deepcopy(api_opts))]
class Fractal(db.Model):
uuid = db.Column(db.String(36), primary_key=True)
checksum = db.Column(db.String(256), unique=True)
url = db.Column(db.String(256), nullable=True)
duration = db.Column(db.Float)
size = db.Column(db.Integer, nullable=True)
width = db.Column(db.Integer, nullable=False)
height = db.Column(db.Integer, nullable=False)
iterations = db.Column(db.Integer, nullable=False)
xa = db.Column(db.Float, nullable=False)
xb = db.Column(db.Float, nullable=False)
ya = db.Column(db.Float, nullable=False)
yb = db.Column(db.Float, nullable=False)
if CONF.database_url.startswith('mysql'):
LOG.debug('Using MySQL database backend')
image = db.Column(mysql.MEDIUMBLOB, nullable=True)
else:
image = db.Column(db.LargeBinary, nullable=True)
generated_by = db.Column(db.String(256), nullable=True)
def __repr__(self):
return '<Fractal %s>' % self.uuid
db.create_all()
manager = flask.ext.restless.APIManager(app, flask_sqlalchemy_db=db)
connection = Connection(CONF.transport_url)
@app.route('/', methods=['GET'])
@app.route('/index', methods=['GET'])
@app.route('/index/<int:page>', methods=['GET'])
def index(page=1):
fractals = Fractal.query.filter(
(Fractal.checksum != None) & (Fractal.size != None)).paginate( # noqa
page, 5, error_out=False)
return flask.render_template('index.html', fractals=fractals)
@app.route('/fractal/<string:fractalid>', methods=['GET'])
def get_fractal(fractalid):
fractal = Fractal.query.filter_by(uuid=fractalid).first()
if not fractal:
response = flask.jsonify({'code': 404,
'message': 'Fracal not found'})
response.status_code = 404
else:
image_data = base64.b64decode(fractal.image)
image = Image.open(cStringIO.StringIO(image_data))
output = cStringIO.StringIO()
image.save(output, "PNG")
image.seek(0)
response = flask.make_response(output.getvalue())
response.content_type = "image/png"
return response
def generate_fractal(**kwargs):
with producers[connection].acquire(block=True) as producer:
producer.publish(kwargs['result'],
serializer='json',
exchange=queues.task_exchange,
declare=[queues.task_exchange],
routing_key='normal')
def main():
manager.create_api(Fractal, methods=['GET', 'POST', 'DELETE', 'PUT'],
postprocessors={'POST': [generate_fractal]},
exclude_columns=['image'],
url_prefix='/v1')
app.run(host=CONF.listen_address, port=CONF.bind_port)

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{% extends "bootstrap/base.html" %}
{% block title %}First App Application for OpenStack{% endblock %}
{% from "bootstrap/pagination.html" import render_pagination %}
{% block content %}
{{render_pagination(fractals)}}
{% for fractal in fractals.items %}
<div class="row">
<div class="col-xs-5 col-md-3">
<a href="/fractal/{{ fractal.uuid }}" class="thumbnail">
<img src="/fractal/{{ fractal.uuid }}" style="max-height: 300px; max-width: 300px">
</a>
</div>
<div class="col-xs-7 col-md-9">
<table class="table table-striped">
<tbody>
<tr>
<td>UUID</td>
<td>{{ fractal.uuid }}</td>
</tr>
<tr>
<td>Duration</td>
<td>{{ fractal.duration }} seconds</td>
</tr>
<tr>
<td>Dimensions</td>
<td>{{ fractal.width }} x {{ fractal.height }} px</td>
</tr>
<tr>
<td>Iterations</td>
<td>{{ fractal.iterations }}</td>
</tr>
<tr>
<td>Parameters</td>
<td>
<pre>xa = {{ fractal.xa }}
xb = {{ fractal.xb }}
ya = {{ fractal.ya }}
yb = {{ fractal.yb }}</pre>
</td>
</tr>
<tr>
<td>Filesize</td>
<td>{{ fractal.size}} bytes</td>
</tr>
<tr>
<td>Checksum</td>
<td><pre>{{ fractal.checksum }}</pre></td>
</tr>
<tr>
<td>Generated by</td>
<td>{{ fractal.generated_by }}</td>
</tr>
</tbody>
</table>
</div>
</div>
{% endfor %}
{{render_pagination(fractals)}}
{% endblock %}

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# 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 copy
import kombu
from oslo_config import cfg
task_exchange = kombu.Exchange('tasks', type='direct')
task_queue = kombu.Queue('normal', task_exchange, routing_key='normal')
queues_opts = [
cfg.StrOpt('transport-url',
default='amqp://guest:guest@localhost:5672//',
help='AMQP connection URL.')
]
cfg.CONF.register_opts(queues_opts)
def list_opts():
"""Entry point for oslo-config-generator."""
return [(None, copy.deepcopy(queues_opts))]

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# 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 pbr.version
version_info = pbr.version.VersionInfo('faafo')

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#!/usr/bin/env python
# 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.
# based on http://code.activestate.com/recipes/577120-julia-fractals/
import base64
import copy
import hashlib
import json
import os
from PIL import Image
import random
import socket
import tempfile
import time
from kombu.mixins import ConsumerMixin
from oslo_config import cfg
from oslo_log import log
import requests
from faafo import queues
LOG = log.getLogger('faafo.worker')
CONF = cfg.CONF
worker_opts = {
cfg.StrOpt('endpoint-url',
default='http://localhost',
help='API connection URL')
}
CONF.register_opts(worker_opts)
def list_opts():
"""Entry point for oslo-config-generator."""
return [(None, copy.deepcopy(worker_opts))]
class JuliaSet(object):
def __init__(self, width, height, xa=-2.0, xb=2.0, ya=-1.5, yb=1.5,
iterations=255):
self.xa = xa
self.xb = xb
self.ya = ya
self.yb = yb
self.iterations = iterations
self.width = width
self.height = height
self.draw()
def draw(self):
self.image = Image.new("RGB", (self.width, self.height))
c, z = self._set_point()
for y in range(self.height):
zy = y * (self.yb - self.ya) / (self.height - 1) + self.ya
for x in range(self.width):
zx = x * (self.xb - self.xa) / (self.width - 1) + self.xa
z = zx + zy * 1j
for i in range(self.iterations):
if abs(z) > 2.0:
break
z = z * z + c
self.image.putpixel((x, y),
(i % 8 * 32, i % 16 * 16, i % 32 * 8))
def get_file(self):
with tempfile.NamedTemporaryFile(delete=False) as fp:
self.image.save(fp, "PNG")
return fp.name
def _set_point(self):
random.seed()
while True:
cx = random.random() * (self.xb - self.xa) + self.xa
cy = random.random() * (self.yb - self.ya) + self.ya
c = cx + cy * 1j
z = c
for i in range(self.iterations):
if abs(z) > 2.0:
break
z = z * z + c
if i > 10 and i < 100:
break
return (c, z)
class Worker(ConsumerMixin):
def __init__(self, connection):
self.connection = connection
def get_consumers(self, Consumer, channel):
return [Consumer(queues=queues.task_queue,
accept=['json'],
callbacks=[self.process])]
def process(self, task, message):
LOG.info("processing task %s" % task['uuid'])
LOG.debug(task)
start_time = time.time()
juliaset = JuliaSet(task['width'],
task['height'],
task['xa'],
task['xb'],
task['ya'],
task['yb'],
task['iterations'])
elapsed_time = time.time() - start_time
LOG.info("task %s processed in %f seconds" %
(task['uuid'], elapsed_time))
filename = juliaset.get_file()
LOG.debug("saved result of task %s to temporary file %s" %
(task['uuid'], filename))
with open(filename, "rb") as fp:
size = os.fstat(fp.fileno()).st_size
image = base64.b64encode(fp.read())
checksum = hashlib.sha256(open(filename, 'rb').read()).hexdigest()
os.remove(filename)
LOG.debug("removed temporary file %s" % filename)
result = {
'uuid': task['uuid'],
'duration': elapsed_time,
'image': image,
'checksum': checksum,
'size': size,
'generated_by': socket.gethostname()
}
# NOTE(berendt): only necessary when using requests < 2.4.2
headers = {'Content-type': 'application/json',
'Accept': 'text/plain'}
requests.put("%s/v1/fractal/%s" %
(CONF.endpoint_url, str(task['uuid'])),
json.dumps(result), headers=headers)
message.ack()
return result

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pbr>=1.6
pytz
positional
iso8601
anyjson>=0.3.3
eventlet>=0.17.4
PyMySQL>=0.6.2,<0.7 # 0.7 design change breaks faafo, MIT License
Pillow==2.4.0 # MIT
requests>=2.5.2
Flask-Bootstrap
Flask>=0.10,<1.0
flask-restless
flask-sqlalchemy
oslo.config>=2.3.0 # Apache-2.0
oslo.log>=1.8.0 # Apache-2.0
PrettyTable>=0.7,<0.8
kombu>=3.0.7

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[metadata]
name = faafo
summary = First App Application for OpenStack
description-file =
README.rst
author = OpenStack Documentation
author-email = openstack-doc@lists.openstack.org
home-page = http://docs.openstack.org/developer/faafo/
classifier =
Environment :: OpenStack
Intended Audience :: Information Technology
Intended Audience :: System Administrators
License :: OSI Approved :: Apache Software License
Operating System :: POSIX :: Linux
Programming Language :: Python
Programming Language :: Python :: 2
Programming Language :: Python :: 2.7
[files]
packages =
faafo
scripts =
bin/faafo
bin/faafo-worker
extra_files =
faafo/api/templates/index.html
data_files =
/etc/faafo = etc/faafo.conf
[global]
setup-hooks =
pbr.hooks.setup_hook
[entry_points]
console_scripts =
faafo-api = faafo.api.service:main
oslo.config.opts =
faafo.api = faafo.api.service:list_opts
faafo.worker = faafo.worker.service:list_opts
faafo.queues= faafo.queues:list_opts
[build_sphinx]
source-dir = doc/source
build-dir = doc/build
all_files = 1
[upload_sphinx]
upload-dir = doc/build/html
[wheel]
universal = 1
[pbr]
warnerrors = true

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#!/usr/bin/env python
# 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.
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'],
pbr=True)

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hacking<0.11,>=0.10
sphinx>=1.1.2,!=1.2.0,!=1.3b1,<1.3

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[tox]
minversion = 1.6
envlist = pep8
skipsdist = True
[testenv]
usedevelop = True
deps = -r{toxinidir}/test-requirements.txt
-r{toxinidir}/requirements.txt
install_command = pip install -U {opts} {packages}
[testenv:venv]
commands = {posargs}
[testenv:docs]
commands = python setup.py build_sphinx
[testenv:genconfig]
commands =
oslo-config-generator --config-file etc/oslo-config-generator/faafo.conf
[testenv:pep8]
commands = flake8 {posargs}
[flake8]
show-source = True
exclude=.venv,.git,.tox,*egg*,build,*openstack/common*