---
title: "Ruby APM with Scalingo"
slug: "ruby-apm-with-scalingo"
description: "Learn how to install the Ruby APM Profiler in your Scalingo-based Ruby app. Follow easy steps for setup, configuration, and verification in Retrace dashboard."
updated: 2020-06-18T20:39:11Z
published: 2020-06-18T20:39:11Z
canonical: "docs.stackify.com/ruby-apm-with-scalingo"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stackify.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Ruby APM with Scalingo

This document details how to install the **Ruby APM Profiler** in your **Ruby** application running on **Scalingo**.

## Ruby Application Setup

### Add Stackify APM Module

Modify application `Gemfile`:

```
gem 'stackify-ruby-apm'
```

### Configure Application

Add `config/stackify_apm.yml` to your application, modify **application_name** and **environment_name**.

```
application_name: 'Ruby Application'
environment_name: 'Production'
```

#### Rails

Profiler will startup automatically, no additional configuration.

#### Non-Rails

Include **StackifyRubyAPM::Middleware** when starting your application:

```
# config.ru

require 'stackify-ruby-apm'
use StackifyRubyAPM::Middleware
StackifyRubyAPM.start

# application startup

at_exit { StackifyRubyAPM.stop }
```

### Add Buildpack

Add/Create `.buildpacks` file with following line at the top:

```
https://github.com/stackify/heroku-buildpack-stackify.git
```

### Configure Buildpack

In the Scalingo UI add the following Environment variables:

```
STACKIFY_KEY=XXXXXXXXXX
STACKIFY_APPLICATION_NAME=Ruby Application
STACKIFY_ENVIRONMENT_NAME=Production
```

Set `STACKIFY_KEY` to your **Stackify Activation Key**.

## Verify

Deploy changes to Scalingo and make requests. You can then verify results in the Retrace dashboard.