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

# Can I specify a Dockerfile and let W&B build a Docker image for me?

This feature suits projects with stable requirements but frequently changing codebases.

<Warning>
  Format your Dockerfile to use mounts. For further details, visit the [Mounts documentation on the Docker Docs website](https://docs.docker.com/build/guide/mounts/).
</Warning>

After configuring the Dockerfile, specify it in one of three ways to W\&B:

* Use Dockerfile.wandb
* Use W\&B CLI
* Use W\&B App

<Tabs>
  <Tab title="Dockerfile.wandb">
    Include a `Dockerfile.wandb` file in the same directory as the W\&B run's entrypoint. W\&B utilizes this file instead of the built-in Dockerfile.
  </Tab>

  <Tab title="W&B CLI">
    Use the `--dockerfile` flag with the `wandb launch` command to queue a job:

    ```bash theme={null}
    wandb launch --dockerfile path/to/Dockerfile
    ```
  </Tab>

  <Tab title="W&B app">
    When adding a job to a queue in the W\&B App, provide the Dockerfile path in the **Overrides** section. Enter it as a key-value pair with `"dockerfile"` as the key and the path to the Dockerfile as the value.

    The following JSON demonstrates how to include a Dockerfile in a local directory:

    ```json title="Launch job W&B App" theme={null}
    {
      "args": [],
      "run_config": {
        "lr": 0,
        "batch_size": 0,
        "epochs": 0
      },
      "entrypoint": [],
      "dockerfile": "./Dockerfile"
    }
    ```
  </Tab>
</Tabs>