# Deployment

This document contains information about how to deploy to production, all of the different platforms and tools, and how to configure them.

WIP.
* Production Setup/Installation
* Travis
* Docker Hub
* Kubernetes
* S3
* Mailgun
* Cloudflare
* DNS/Dreamhost
* mLab

## Deployment Process

These are the steps that happen when you deploy the application.

1. Push to `master` branch, or merge in a pull request to the `master` branch.
2. This triggers a build on [Travis CI](https://travis-ci.org/processing/p5.js-web-editor).
3. Travis CI builds a (development) Docker image of the whole application.
4. Travis CI runs some tests, which in this case, is just `npm run lint`. This could be updated in the future to include more extensive tests. If the tests fail, the build stops here.
5. If the tests pass, then Travis CI builds a (production) Docker image of the whole application.
6. This image is pushed to [Docker Hub](https://hub.docker.com/r/catarak/p5.js-web-editor/) with a unique tag name (the Travis commit) and also to the `latest` tag.
7. The Kubernetes deployment is updated to image just pushed to Docker Hub on the cluster on Google Kubernetes Engine.

## Production Installation

You'll only need to do this if you're testing the production environment locally.

1. Clone this repository and `cd` into it
2. `$ npm install`
3. Install MongoDB and make sure it is running
4. `$ cp .env.example .env`
5. (NOT Optional) edit `.env` and fill in all necessary values.
6. `$ npm run fetch-examples` - this downloads the example sketches into a user called 'p5'
7. `$ npm run build`
8. Since production assumes your environment variables are in the shell environment, and not in a `.env` file, you will have to run `export $(grep -v '^#' .env | xargs)` or a similar command, see this [Stack Overflow answer](https://stackoverflow.com/a/20909045/4086967).
9. `$ npm run start:prod`

## Heroku Deployment

You can evaluate hosting a complete p5.js Web Editor instance at no cost on Heroku.

1. Sign up for a free account at: [Heroku](https://www.heroku.com/)
2. Click here: [![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/passion-for-coding/p5.js-web-editor/tree/heroku-deployment)
3. Enter a unique *App name*, this will become part of the url (i.e. https://app-name.herokuapp.com/)
4. Update any configuration variables, or accept the defaults for a quick evaluation (they can be changed later to enable full functionality)
5. Click on the "Deploy app" button
6. When complete, click on the "View app" button