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application_python (14) Versions 4.0.0

A Chef cookbook for deploying Python application code.

Berkshelf/Librarian
Policyfile
Knife
cookbook 'application_python', '~> 4.0.0'
cookbook 'application_python', '~> 4.0.0', :supermarket
knife cookbook site install application_python
knife cookbook site download application_python
README
Dependencies
Changelog
Quality

Application_Python Cookbook

Build Status Gem Version Cookbook Version Coverage Gemnasium License

A Chef cookbook to deploy Python applications.

Quick Start

To deploy a Django application from git:

application '/srv/myapp' do
  git 'https://github.com/example/myapp.git'
  virtualenv
  pip_requirements
  django do
    database 'sqlite:///test_django.db'
    secret_key 'd78fe08df56c9'
    migrate true
  end
  gunicorn do
    port 8000
  end
end

Requirements

Chef 12 or newer is required.

Resources

application_celery_beat

The application_celery_beat resource creates a service for the celery beat process.

application '/srv/myapp' do
  celery_beat do
    app_module 'myapp.tasks'
  end
end

Actions

  • :enable – Create, enable and start the service. (default)
  • :disable – Stop, disable, and destroy the service.
  • :start – Start the service.
  • :stop – Stop the service.
  • :restart – Stop and then start the service.
  • :reload – Send the configured reload signal to the service.

Properties

  • path – Base path for the application. (name attribute)
  • app_module – Celery application module. (default: auto-detect)
  • service_name – Name of the service to create. (default: auto-detect) # user – User to run the service as. (default: application owner)

application_celery_config

The application_celery_config creates a celeryconfig.py configuration file.

application '/srv/myapp' do
  celery_config do
    options do
      broker_url 'amqp://'
    end
  end
end

Actions

  • :deploy – Create the configuration file. (default)

Properties

  • path – Path to write the configuration file to. If given as a directory, create path/celeryconfig.py. (name attribute)
  • options – Hash or block of options to set in the configuration file.

application_celery_worker

The application_celery_worker resource creates a service for the celery worker process.

application '/srv/myapp' do
  celery_worker do
    app_module 'myapp.tasks'
  end
end

Actions

  • :enable – Create, enable and start the service. (default)
  • :disable – Stop, disable, and destroy the service.
  • :start – Start the service.
  • :stop – Stop the service.
  • :restart – Stop and then start the service.
  • :reload – Send the configured reload signal to the service.

Properties

  • path – Base path for the application. (name attribute)
  • app_module – Celery application module. (default: auto-detect)
  • service_name – Name of the service to create. (default: auto-detect) # user – User to run the service as. (default: application owner)

application_django

The application_django resource creates configuration files and runs commands for a Django application deployment.

application '/srv/myapp' do
  django do
    database 'sqlite:///test_django.db'
    migrate true
  end
end

Actions

  • :deploy – Create config files and run required deployments steps. (default)

Properties

  • path – Base path for the application. (name attribute)
  • allowed_hosts – Value for ALLOWED_HOSTS in the Django settings. (default: [])
  • collectstatic – Run manage.py collectstatic during deployment. (default: true)
  • database – Database settings for the default connection. See the database section below for more information. (option collector)
  • debug – Enable debug mode for Django. (default: false)
  • local_settings – A Poise template property for the content of the local settings configuration file.
  • local_settings_path – Path to write local settings to. If given as a relative path, will be expanded against path. Set to false to disable writing local settings. (default: local_settings.py next to settings_module)
  • migrate – Run manage.py migrate during deployment. (default: false)
  • manage_path – Path to manage.py. (default: auto-detect)
  • secret_key – Value for SECRET_KEY in the Django settings. If unset, no key is added to the local settings.
  • settings_module – Django settings module in dotted notation. (default: auto-detect)
  • syncdb – Run manage.py syncdb during deployment. (default: false)
  • wsgi_module – WSGI application module in dotted notation. (default: auto-detect)

Database Parameters

The database parameters can be set in three ways: URL, hash, and block.

If you have a single URL for the parameters, you can pass it directly to database:

django do
  database 'postgres://myuser@dbhost/myapp'
end

Passing a single URL will also set the $DATABASE_URL environment variable automatically for compatibility with Heroku-based applications.

As with other option collector resources, you can pass individual settings as either a hash or block:

django do
  database do
    engine 'postgres'
    user 'myuser'
    host 'dbhost'
    name 'myapp'
  end
end

django do
  database({
    engine: 'postgres',
    user: 'myuser',
    host: 'dbhost',
    name: 'myapp',
  })
end

application_gunicorn

The application_gunicorn resource creates a service for the Gunicorn application server.

application '/srv/myapp' do
  gunicorn do
    port 8000
    preload_app true
  end
end

Actions

  • :enable – Create, enable and start the service. (default)
  • :disable – Stop, disable, and destroy the service.
  • :start – Start the service.
  • :stop – Stop the service.
  • :restart – Stop and then start the service.
  • :reload – Send the configured reload signal to the service.

Properties

  • path – Base path for the application. (name attribute)
  • app_module – WSGI module to run as an application. (default: auto-detect)
  • bind – One or more addresses/ports to bind to.
  • config – Path to a Guncorn configuration file.
  • preload_app – Enable code preloading. (default: false)
  • port – Port to listen on. Alias for bind("0.0.0.0:#{port}").
  • service_name – Name of the service to create. (default: auto-detect) # user – User to run the service as. (default: application owner)
  • version – Version of Gunicorn to install. If set to true, use the latest version. If set to false, do not install Gunicorn. (default: true)

application_pip_requirements

The application_pip_requirements resource installs Python packages based on a requirements.txt file.

application '/srv/myapp' do
  pip_requirements
end

All actions and properties are the same as the pip_requirements resource.

application_python

The application_python resource installs a Python runtime for the deployment.

application '/srv/myapp' do
  python '2.7'
end

All actions and properties are the same as the python_runtime resource.

application_python_execute

The application_python_execute resource runs Python commands for the deployment.

application '/srv/myapp' do
  python_execute 'setup.py install'
end

All actions and properties are the same as the python_execute resource, except that the cwd, environment, group, and user properties default to the application-level data if not specified.

application_python_package

The application_python_package resource installs Python packages for the deployment.

application '/srv/myapp' do
  python_package 'requests'
end

All actions and properties are the same as the python_package resource, except that the group and user properties default to the application-level data if not specified.

application_virtualenv

The application_virtualenv resource creates a Python virtualenv for the deployment.

application '/srv/myapp' do
  virtualenv
end

If no path property is given, the default is to create a .env/ inside the application deployment path.

All actions and properties are the same as the python_virtualenv resource.

Examples

Some test recipes are available as examples for common application frameworks:

Sponsors

Development sponsored by Chef Software, Symonds & Son, and Orion.

The Poise test server infrastructure is sponsored by Rackspace.

License

Copyright 2015, Noah Kantrowitz

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.

Application_Python Changelog

v4.0.0

  • Massive rewrite on top of newer Chef patterns. See the 4.0 README for details.

v3.0.0

  • Drop support for Chef 10.
  • COOK-2212 - autostart when server reboots.
  • COOK-3432 - Use Chef::DSL::IncludeRecipe because Chef::Mixin::LanguageIncludeRecipe is deprecated.

v2.0.4

  • Revert changes that broke backwards compatibility.

v2.0.2

  • This release did not follow semver and was reverted in 2.0.4!
  • COOK-3432 - Use Chef::DSL::IncludeRecipe because Chef::Mixin::LanguageIncludeRecipe is deprecated.

v2.0.0

  • [COOK-3306]: Multiple Memory Leaks in Application Cookbook.

v1.2.4

  • [COOK-2747]: celerycam configuration is not suitable for multiple node celery installation.
  • [COOK-2766]: pip does not use deploy_key in django ressource of application_python.

v1.2.2

  • [COOK-2796]: celery provider tries to case switch on 'queue' parameter instead of 'queues' parameter.

v1.2.0

  • [COOK-2611]: Celery LWRP should configure which queues a celeryd worker binds to.
  • [COOK-2599]: gunicorn provider fails if no node['cpu']['total'].

v1.1.0

  • [COOK-2330] - celeryconfig.py.erb tries to use non-existant String#upper method
  • [COOK-2337] - It should be possible to pass environment variables through to gunicorn and celery supervisor configs
  • [COOK-2403] - cookbook attribute expects argument to be a string.
  • [COOK-2453] - application_python should allow the working directory of gunicorn processes to be set via an attribute.
  • [COOK-2475] - celerybeat supervisor process is unnecessarily configured.
  • [COOK-2484] - virtualenv and requirements are installed as root instead of uid/gid specified by application properties.

v1.0.8

  • [COOK-2175] - Template cookbook attribute expecting a stringg getting symbol instead.

v1.0.6

  • [COOK-2122] - pip was incorrectly using -E syntax.
  • [COOK-2147] - django sub-resource searched wrong directory for requirements.txt.

v1.0.4

  • [COOK-2042] - gunicorn LWRP support for virtualenv, deps.

v1.0.2

  • [COOK-1420] - template resource source cookbook is wrong.
  • [COOK-1421] - pip using old -E syntax.
  • [COOK-1422] - syncdb using --migrate option.
  • [COOK-1477] - pip requirements.txt and editable package support.

v1.0.0

  • [COOK-1246] - Initial release - relates to COOK-634.

Collaborator Number Metric
            

4.0.0 failed this metric

Failure: Cookbook has 1 collaborators. A cookbook must have at least 2 collaborators to pass this metric.

Contributing File Metric
            

4.0.0 failed this metric

Failure: To pass this metric, your cookbook metadata must include a source url, the source url must be in the form of https://github.com/user/repo, and your repo must contain a CONTRIBUTING.md file

Foodcritic Metric
            

4.0.0 passed this metric

License Metric
            

4.0.0 failed this metric

application_python does not have a valid open source license.
Acceptable licenses include Apache-2.0, apachev2, Apache 2.0, MIT, mit, GPL-2.0, gplv2, GNU Public License 2.0, GPL-3.0, gplv3, GNU Public License 3.0.

No Binaries Metric
            

4.0.0 passed this metric

Publish Metric
            

4.0.0 passed this metric

Supported Platforms Metric
            

4.0.0 failed this metric

application_python should declare what platform(s) it supports.

Testing File Metric
            

4.0.0 failed this metric

Failure: To pass this metric, your cookbook metadata must include a source url, the source url must be in the form of https://github.com/user/repo, and your repo must contain a TESTING.md file

Version Tag Metric
            

4.0.0 passed this metric