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eb-fix-npm

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[unsupported] Fixes npm in Elastic Beanstalk environments.

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# eb-fix-npm

This module installs an `.ebextensions` config file that will fix npm in various
ways in AWS Elastic Beanstalk to make your deploys faster and more reliable.

**TL;DR** This module makes it possible to upgrade from Node 4 to Node 6 on Elastic
Beanstalk and speeds up npm install by 95%.

> Looking for even bigger savings? You might consider [disabling npm altogether](https://github.com/mixmaxhq/eb-disable-npm). **Mixmax no longer uses this module, though we will answer support questions to the best of our ability as well as accept others' PRs.**

This module works by installing deployment hooks that perform setup and cleanup
related to Elastic Beanstalk's use of npm:

* Downgrade npm to npm 2 because npm 3 is too slow to install packages for EB (deploys will time out)
* Cache Node modules between deploys
* Only install (don't rebuild) Node modules on application deploy
* Only rebuild (don't install) Node modules on configuration deploy (EB's script
tries to both install and rebuild)
* Actually rebuild Node modules on configuration deploy (EB's script uses the
the wrong directory and so just aborts)
* Remove npm temp files [leftover](https://github.com/npm/npm/issues/6855) by installing from shrinkwrap

The hooks expect that your Elastic Beanstalk application is using either platform
version [3.1.0](http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/concepts.platforms.html#concepts.platforms.nodejs) or the previous version, version [2.1.3](http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/platform-history-nodejs.html). It may work with newer versions&mdash;if it does not, PRs are welcome!

## Installation

1. `npm install eb-fix-npm --save-dev` (see [here](https://github.com/mixmaxhq/install-files/blob/master/README.md#installation) for why `--save-dev`)
2. Commit the `.ebextensions` file it creates.
3. Deploy.

## Modifying the `.ebextensions` file

This module will overwrite the file if/when it is updated.

Pull requests are welcome if you have some generally-useful modifications to
suggest.

If you'd like to make modifications specific to your use case, you should uninstall
this module after installing the `.ebextensions` file. Uninstallation won't take
the file with it.

## Acknowledgements

Some of the hooks are based on logic from https://github.com/kopurando/better-faster-elastic-beanstalk.

## Release History

* 1.2.5 Use the runtime Node version
* 1.2.4 Set proper home directory
* 1.2.3 Fix rebuild directory
* 1.2.2 Misc fixes
* 1.2.1 Use user's environment variables with npm
* 1.2.0 Avoid unnecessarily installing/rebuilding Node modules
* 1.1.0 Cache Node modules between deploys
* 1.0.0 Initial commit

eb-fix-npm

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