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tweek@soluto.com

What is Tweek?

Tweek is an open source feature management solution for customizing applications and system behavior without deploying new code.

Tweek aims to be a complete open-source alternative to other industry feature/configuration/experiment management solutions such as Facebook's Gatekeeper, LinkedIn's XLNT, Dropbox's Stormcrow and other commercial SaaS solutions...

Features

  • Feature toggles, gradual release
  • Multi-variant experiments, A/B testing
  • Built-in Editor with user friendly UI
  • Hierarchical configurations
  • Advanced targeting of users/groups
  • Dependencies between features
  • Customizable schema/domain model
  • Auditing
  • Integrated storage for saving context
  • Container friendly
  • Integrated OAuth support
  • Pluggable storage backend
  • Simple RESTful api for fetching configurations
  • Scalable

Getting Started

The easiest way to start evaluating Tweek is to run it locally on docker, make sure you have the latest docker (for windows/mac/etc..) version installed (17-06+).

Running Tweek

  • Clone the repo (git clone https://github.com/Soluto/tweek.git)
  • [optional] Pull images, run yarn docker-compose pull --parallel (optional for getting started fast with Tweek as it's skip build)

Using Docker Compose

  • Run (yarn start) - this might take a few minutes for the first time

Using Kubernetes

  • Install Skaffold (https://github.com/GoogleContainerTools/skaffold)
  • Run skaffold dev --port-forward=false
  • Wait for environment to be stable (will take about 10m first time due to building all images, afterward it can take about 2m for environment to stabilize)

Troubleshooting

  • Run (yarn start --build) to rebuild all images and start Tweek.

Edit your first key

After setting up our environment, we're going to create our first key. Keys in tweek are the most basic building blocks and they represent a container for dynamic value that affect feature behaviors. Our first key, will be a key that is responsible for the color of a "sign up" button.

  • Open http://localhost:8081/login in browser.
  • Login
    • User Basic auth (user: admin-app, password: 8v/iUG0vTH4BtVgkSn3Tng==)
    • Can also use OIDC mock server login button for testing OIDC (user: User, password: pwd)
  • Go to keys page.
  • Click on "Add Key"
  • Type my_app/sign_button/color
  • Set value type to String
  • Add default value "red"
  • Save changes
  • Click on "Add Rule"
  • Set Property to Country (user) and set "=" and "Canada" in the other fields
  • In Rule value set the value "blue"
  • Click "Save changes"

More on keys and paths

Querying Tweek

Use curl/postman/chrome to fire GET Request:

Using the rest api, an application can query Tweek for getting the right set of values for each specific user. More on Tweek Rest api.

Adding context data

Tweek provide UI and rest api for editing context.

  • Go to context
  • Set Identity Type to User
  • Set User id to John
  • Click enter
  • Set value "Candada" for property Country

After that, we can query Tweek API with:

You can also use the api for updating Tweek context:

More on Context.

Gradual Feature Release

Create new key in the editor "my_app/sign_button/is_enabled" with value type "boolean" and default value False.
Add new rule, remove all conditions, set the the rule value to gradual release with 50%. Try querying configuration with different users and You'll have different results.

More on how multi-variant keys work in Tweek. (link)

Deployment to production

FAQ

  • Who's using Tweek?
    Tweek is been used in large scale production deployment at Soluto.
  • How do I generate ssh keys and a pfx file for use in production?
    There's a script for this purpose in utils/generate_keys.sh
  • I found a security vulnerability, should I open an issue about it?
    No. Please send an email to security@soluto.com.

Related projects

Tweek-Clients - Tweek REST clients
Tweek.JPad - Tweek's internal rules engine

Additional Resources