---
title: Docker Integration
sidebarTitle: Docker
icon: "siDocker"
description: Configure Docker containers and Docker Compose environments with Reloop credentials.
---
> For the complete documentation index, see [llms-docs.txt](/llms-docs.txt) or the site index [llms.txt](/llms.txt). Full docs corpus: [llms-full-docs.txt](/llms-full-docs.txt). Prefer markdown URLs (append `.md`) for agent consumption. Product skill: [skill.md](/skill.md).


[Docker](https://docker.com) simplifies shipping applications. Configure your containerized services to connect to Reloop's SMTP or API endpoints.

---

## Step 1: Add Credentials to Docker Compose

Add the credentials under the `environment` section in your `docker-compose.yml` file:

```yaml
version: '3.8'

services:
  app:
    image: node:18
    environment:
      - RELOOP_API_KEY=rl_your_api_key_here
      - SMTP_HOST=smtp.reloop.sh
      - SMTP_PORT=587
      - SMTP_USER=reloop
      - SMTP_PASS=rl_your_api_key_here
    ports:
      - "3000:3000"
    command: npm start
```

---

## Step 2: Use credentials in your container

Your application inside the container can now access the environment variables naturally (e.g. `process.env.RELOOP_API_KEY` in Node.js or `os.environ.get('RELOOP_API_KEY')` in Python).