# Devnet

A **Devnet** (Development Network) serves as a local testing environment that allows developers to experiment, validate configurations, and simulate rollup deployments without interacting with public networks. It provides a safe and cost-effective way to test appchain logic, integration modules and SDK commands in a controlled setting. Using a Devnet helps identify issues early in the development lifecycle, ensuring smoother deployments to Testnet or Mainnet later.

### Deployment Steps

Proceed with the instructions below to deploy a Devnet according to your chosen deployment method:

1. First, create a folder for your deployment with the following command.

```bash
mkdir trh-devnet
cd trh-devnet
```

2. You can now deploy the devnet by running the following command. The SDK will handle repository cloning, dependency installation, and chain initialization.

```bash
trh-sdk deploy
```

3. If you successfully deploy the local-devnet, you will get the following output:

```bash
...
Container ops-bedrock-l1-1  Running
Container ops-bedrock-artifact-server-1  Creating
Container ops-bedrock-l2-1  Running
Container ops-bedrock-op-node-1  Creating
Container ops-bedrock-op-node-1  Created
Container ops-bedrock-op-batcher-1  Creating
Container ops-bedrock-op-proposer-1  Creating
Container ops-bedrock-artifact-server-1  Created
Container ops-bedrock-op-batcher-1  Created
Container ops-bedrock-op-proposer-1  Created
Container ops-bedrock-op-node-1  Starting
Container ops-bedrock-artifact-server-1  Starting
Container ops-bedrock-artifact-server-1  Started
Container ops-bedrock-op-node-1  Started
Container ops-bedrock-op-proposer-1  Starting
Container ops-bedrock-op-batcher-1  Starting
Container ops-bedrock-op-batcher-1  Started
Container ops-bedrock-op-proposer-1  Started
✅ Devnet started successfully! 
```

4. Use the `docker ps` command to verify that the containers are up and running. A successful installation will produce the following output.

<figure><img src="https://3565366697-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl0dwiwSNGrEYCAvrI0ht%2Fuploads%2Fa5ym13zHz1g0wT1sIOqm%2Fimage.png?alt=media&#x26;token=9fc006b9-7169-4ef6-80bc-3e3847f1c366" alt=""><figcaption><p>Docker Containers</p></figcaption></figure>

> ℹ️ Once the Devnet is deployed, you can manage and operate it using this guide ([link](https://docs.tokamak.network/home/service-guide/tokamak-rollup-hub/tokamak-rollup-hub-sdk/rollup-stack/thanos-stack/operation-guide/devnet)).

5. You can run the following commands in deployment folder to **destroy** the devnet.

```bash
trh-sdk destroy
```

6. If the local devnet is successfully destroyed, you will see the following output. You can also verify by running `docker ps` to check the container status.

```bash
✅ Devnet network destroyed successfully! 
```