Reverse engineer server configuration
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Blueprint reverse-engineers servers

  • Easy configuration management.
  • Detect relevant packages, files, and source installs.
  • Generate reusable server configs.
  • Convert blueprints to Puppet or Chef.
  • No DSLs, no extra servers, no workflow changes.

Blueprint looks inside popular package managers, finds changes you made to configuration files, and archives software you built from source. It runs on Debian- and RPM-based Linux distros with Python >= 2.6 and Git >= 1.7. Comprehensive documentation and examples in the Blueprint book.

Blueprint I/O moves blueprints around

  • Centralized configuration management.
  • Export and backup server configurations.
  • Push and pull blueprints anywhere.
  • Bootstrap servers painlessly.

Blueprint I/O pushes and pulls blueprints to and from a Blueprint I/O Server, making it easy to use blueprints anywhere. DevStructure provides a free Blueprint I/O Server at, which stores blueprints in Amazon S3. Alternatively, you can build your own backend server implementing the Blueprint I/O API.


Create a blueprint

blueprint create my-first-blueprint

Blueprint inspects your server and stores the results in its local repository. blueprint list shows all the blueprints you've created on this server.

Apply a blueprint

blueprint apply my-first-blueprint

Blueprint generates shell code from my-first-blueprint and executes it on the server.

Generate POSIX shell code from a blueprint

blueprint show -S my-first-blueprint is written to your working directory. Try out -P or -C to generate a Puppet module or a Chef cookbook.

Diff a blueprint

blueprint diff foo bar baz

Blueprint subtracts bar from foo. Files, packages and sources that appears in foo but not bar will be carried over to baz and everything else will be dropped.

Push a blueprint

blueprint push my-first-blueprint

The blueprint and its files are stored remotely. You get a secret URL for accessing it.

Pull a blueprint

blueprint pull

The blueprint is stored locally and ready for use.



  • A Debian- or RPM-based Linux distribution
  • Python >= 2.6
  • Git >= 1.7

From source on Debian, Ubuntu, Fedora, CentOS 6, and RHEL 6

git clone git://
cd blueprint
git submodule update --init
make && sudo make install

From source on CentOS and RHEL 5

rpm -Uvh
yum install python26
git clone git://
cd blueprint
git submodule update --init
make && sudo make install PYTHON=/usr/bin/python26

This installs Python 2.6 from EPEL side-by-side with Python 2.4 and so won't break yum.

With a package manager

DevStructure maintains Debian packages and Python eggs for Blueprint. See Installing with a package manager on the wiki.


The prose documentation provides a comprehensive overview of the tool including philosophy, installation, and detailed examples.

The HTTP endpoints and protocols used by blueprint-push(1) and blueprint-pull(1) are documented so that others may run compatible servers.




Blueprint is BSD-licensed.