# Simple Configuration Guide

Ocean Node is configured primarily through **Environment Variables**. These can be set in a `.env` file or exported in your shell.

### Essential Configuration

| Variable      | Description                                         | Required | Example                                     |
| ------------- | --------------------------------------------------- | -------- | ------------------------------------------- |
| `PRIVATE_KEY` | Your wallet's private key.                          | **Yes**  | `0x123...abc`                               |
| `RPCS`        | JSON object defining RPC URLs for supported chains. | No       | `{"1": "https://rpc.eth...", "137": "..."}` |
| `DB_URL`      | URL for the internal database (Typesense/Elastic).  | No       | `http://localhost:8108`                     |
| `HTTP_PORT`   | Port for the HTTP server.                           | No       | `8000`                                      |

### Compute-to-Data (C2D) Configuration

If you want your node to process compute jobs (and earn fees), you need to configure the compute environments.

#### `DOCKER_COMPUTE_ENVIRONMENTS`

This JSON string defines what resources your node offers.

**Example Format:**

```json
{
	"environments": [
		{
			"id": "gpu-env",
			"cpu": 2,
			"ram": "8GB",
			"gpu": 1,
			"disk": "100GB"
		}
	]
}
```

*Note: The quickstart script attempts to auto-detect your GPUs (NVIDIA/PCIe) and populate this for you.*

### Allowed Admins

To control who can manage the node remotely:

| Variable         | Description                                                 |
| ---------------- | ----------------------------------------------------------- |
| `ALLOWED_ADMINS` | List of wallet addresses allowed to access admin endpoints. |

### Updating Configuration

If you used the **Docker** setup:

1. Edit the `.env` file generated in your node directory.
2. Restart the container:

   ```bash
   docker-compose down
   docker-compose up -d
   ```

If you used **NPM**:

1. Export the new variables.
2. Restart the process (`pm2 restart ocean-node` or `npm run start`).

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