added faafo example

faafo/.gitignore

+.tox
+.vagrant
+*.pyc
+.venv
+*.egg-info
+*.egg
+.eggs
+.*.swp
+build
+*.log
+*.png
+AUTHORS
+ChangeLog
+dist

faafo/CONTRIBUTING.rst

+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

faafo/LICENSE

+Apache License
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+

faafo/README.rst

+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``.

faafo/Vagrantfile

+# -*- 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

faafo/bin/faafo

+#!/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()

faafo/bin/faafo-worker

+#!/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.")

faafo/contrib/install.sh

+#!/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

faafo/contrib/test_api.py

+#!/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

faafo/doc/source/conf.py

+# 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'

faafo/doc/source/development.rst

+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

faafo/doc/source/images/diagram.dot

+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];
+}

faafo/doc/source/images/dot2png.sh

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

faafo/doc/source/implementation.rst

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

faafo/doc/source/index.rst

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

faafo/doc/source/installation.rst

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

faafo/doc/source/references.rst

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