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probot.github.io/docs/deployment.md
2017-08-07 11:11:22 -05:00

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---
next: docs/best-practices.md
---
# Deploy
## Publishing your bot
Plugins can be published in npm modules, which can either be deployed as stand-alone bots, or combined with other plugins.
Use [create-probot-plugin](https://github.com/probot/create-probot-plugin) to get started building your plugin as a node module.
```
$ npm install -g create-probot-app
$ create-probot-plugin my-plugin
$ cd my-plugin
$ npm install
```
---
Every plugin can either be deployed as a stand-alone bot, or combined with other plugins in one deployment.
> **Heads up!** Note that most [plugins in the @probot organization](https://github.com/search?q=topic%3Aprobot-plugin+org%3Aprobot&type=Repositories) have an official hosted app that you can use for your open source project. Use the hosted instance if you don't want to deploy your own.
**Contents:**
1. [Create the GitHub App](#create-the-github-app)
1. [Deploy the plugin](#deploy-the-plugin)
1. [Heroku](#heroku)
1. [Now](#now)
1. [Combining plugins](#combining-plugins)
## Create the GitHub App
Every deployment will need an [App](https://developer.github.com/apps/).
1. [Create a new GitHub App](https://github.com/settings/apps/new) with:
- **Homepage URL**: the URL to the GitHub repository for your plugin
- **Webhook URL**: Use `https://example.com/` for now, we'll come back in a minute to update this with the URL of your deployed plugin.
- **Webhook Secret**: Generate a unique secret with `openssl rand -base64 32` and save it because you'll need it in a minute to configure your deployed plugin.
- **Permissions & events**: See `docs/deploy.md` in the plugin for a list of the permissions and events that it needs access to.
1. Download the private key from the app.
1. Make sure that you click the green **Install** button on the top left of the app page. This gives you an option of installing the app on all or a subset of your repositories.
## Deploy the plugin
To deploy a plugin to any cloud provider, you will need 3 environment variables:
- `APP_ID`: the ID of the app, which you can get from the [app settings page](https://github.com/settings/apps).
- `WEBHOOK_SECRET`: the **Webhook Secret** that you generated when you created the app.
And one of:
- `PRIVATE_KEY`: the contents of the private key you downloaded after creating the app, OR...
- `PRIVATE_KEY_PATH`: the path to a private key file.
`PRIVATE_KEY` takes precedence over `PRIVATE_KEY_PATH`.
### Heroku
Probot runs like [any other Node app](https://devcenter.heroku.com/articles/deploying-nodejs) on Heroku. After [creating the GitHub App](#create-the-github-app):
1. Make sure you have the [Heroku CLI](https://devcenter.heroku.com/articles/heroku-cli) client installed.
1. Clone the plugin that you want to deploy. e.g. `git clone https://github.com/probot/stale`
1. Create the Heroku app with the `heroku create` command:
$ heroku create
Creating arcane-lowlands-8408... done, stack is cedar
http://arcane-lowlands-8408.herokuapp.com/ | git@heroku.com:arcane-lowlands-8408.git
Git remote heroku added
1. Go back to your [app settings page](https://github.com/settings/apps) and update the **Webhook URL** to the URL of your deployment, e.g. `http://arcane-lowlands-8408.herokuapp.com/`.
1. Configure the Heroku app, replacing the `APP_ID` and `WEBHOOK_SECRET` with the values for those variables, and setting the path for the `PRIVATE_KEY`:
$ heroku config:set APP_ID=aaa \
WEBHOOK_SECRET=bbb \
PRIVATE_KEY="$(cat ~/Downloads/*.private-key.pem)"
1. Deploy the plugin to heroku with `git push`:
$ git push heroku master
...
-----> Node.js app detected
...
-----> Launching... done
http://arcane-lowlands-8408.herokuapp.com deployed to Heroku
1. Your plugin should be up and running! To verify that your plugin
is receiving webhook data, you can tail your app's logs:
$ heroku config:set LOG_LEVEL=trace
$ heroku logs --tail
### Now
Zeit [Now](http://zeit.co/now) is a great service for running Probot plugins. After [creating the GitHub App](#create-the-github-app):
1. Install the now CLI with `npm i -g now`
1. Clone the plugin that you want to deploy. e.g. `git clone https://github.com/probot/stale`
1. Run `now` to deploy, replacing the `APP_ID` and `WEBHOOK_SECRET` with the values for those variables, and setting the path for the `PRIVATE_KEY`:
$ now -e APP_ID=aaa \
-e WEBHOOK_SECRET=bbb \
-e PRIVATE_KEY="$(cat ~/Downloads/*.private-key.pem)"
1. Once the deploy is started, go back to your [app settings page](https://github.com/settings/apps) and update the **Webhook URL** to the URL of your deployment (which `now` has kindly copied to your clipboard).
Your plugin should be up and running!
## Combining plugins
To deploy a bot that includes multiple plugins, create a new app that has the plugins listed as dependencies in `package.json`:
```json
{
"name": "my-probot",
"private": true,
"dependencies": {
"probot-autoresponder": "probot/autoresponder",
"probot-configurer": "probot/configurer"
},
"scripts": {
"start": "probot run"
},
"probot": {
"plugins": [
"probot-autoresponder",
"probot-configurer"
]
}
}
```