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UP middleware to enable seamless zero-downtime HTTP server reloads upon GitHub post-receive webhooks.

branch: master
README.md

up-hook

up-hook is an up middleware that enables zero-downtime reloads upon pushing to a GitHub repository through a git-hook.

How to use

  1. Add the up-hook middleware

    var uphook = require('up-hook');
    srv.use(uphook('/super-secret-url', { branch: 'master', cmd: 'make deploy' }));
    

    In this case it's set up so that when you push to the master branch, it will run make deploy and, if successful, it'll reload the server.

  2. Add the post-receive hook on GitHub

    On GitHub, configure a post-receive hook pointing to the URL supplied in the middleware (e.g: http://yourdomain.com/super-secret-url)

  3. Enjoy!

Running the example

  1. Create a new GitHub repository and copy the contents of example/.
  2. Deploy the app by running DEBUG="up-hook" node server.
  3. Load the page, it should say "Hi"
  4. Point a GitHub post-receive hook to "yourdomain.com/tobi"
  5. Commit some changes to app.js and push to master (eg: turn "Hi" into "Bye")
  6. Your server will have been reloaded!

API

uphook (url, opts, fn)
  • url: secret url (path + query string) to capture
  • opts: options object
    • branch: String|false branch to capture (master)
    • cmd: String command to execute (git pull)
    • cwd: String optional dir to execute process in
  • fn is called with an error if the command fails, or null if the reload is triggered

License

Copyright (c) 2012 LearnBoost <guillermo@learnboost.com>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

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 OR COPYRIGHT HOLDERS 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.

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