confuzzle

A tiny tool for generating configuration files by combining Jinja2 templates with YAML data.

Author: Jamie Matthews. Follow me on Twitter.

When deploying an application, you often need to create configuration files for various components (databases, web servers, reverse proxies, etc). Often, the same value needs to appear in multiple places (for example, a port number that servers should bind to and clients should connect to). confuzzle lets you store all of your app config in one place (possibly outside of version control), and combine it with your templated config files at build time.

Example

In your gunicorn.py.tmpl:

bind = "127.0.0.1:{{ gunicorn.port }}"

In your nginx.conf.tmpl:

upstream app_server {
    server 127.0.0.1:{{ gunicorn.port }} fail_timeout=0;
}

Here's your config.yaml

gunicorn:
  port: 8080

By default, confuzzle reads from stdin and writes to stdout. To use:

confuzzle config.yaml < gunicorn.py.tmpl > gunicorn.py
confuzzle config.yaml < nginx.conf.tmpl > nginx.conf

Now, your files look like this:

bind = "127.0.0.1:8080"

upstream app_server {
    server 127.0.0.1:8080 fail_timeout=0;
}

You can also supply a list of YAML files. This might be useful if you'd like to combine a general config file (in version control) with a file containing secrets such as database passwords (not in version control).

confuzzle config.yaml secrets.yaml < settings.py.tmpl > settings.py

See confuzzle --help for the full list of arguments.

Changelog

0.1.0

• Initial release.

0.1.1

• Fix setup.py

0.2.0

• Assume input/output streams and config files are UTF-8 encoded.

Installation

You can install confuzzle from PyPI:

pip install confuzzle

Development

To contribute: fork the repository, make your changes, add some tests, commit, push to a feature branch, and open a pull request.

(Un)license

This is free and unencumbered software released into the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.

In jurisdictions that recognize copyright laws, the author or authors of this software dedicate any and all copyright interest in the software to the public domain. We make this dedication for the benefit of the public at large and to the detriment of our heirs and successors. We intend this dedication to be an overt act of relinquishment in perpetuity of all present and future rights to this software under copyright law.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

For more information, please refer to http://unlicense.org/