Running Docker Desktop Independently of the Windows Session

Docker Desktop has become an essential tool for developers and system administrators, enabling easy management of containerized applications. However, there may be scenarios where it is necessary to run Docker Desktop independently of the active Windows session. This can be particularly useful in environments with a single computer shared among multiple users or when automating tasks that require Docker but are not tied to a specific user session.

A common approach to running Docker Desktop is through Windows Subsystem for Linux 2 (WSL2). However, it can present challenges when trying to run it in a headless or non-interactive mode, particularly if the goal is to allow Docker services to continue running regardless of the Windows session’s state. Fortunately, there are alternative methods to achieve this goal.

Using Windows Services

One effective approach is to set up Docker as a Windows service. This configuration allows Docker to run in the background, independent of whether any user is logged into the machine. While Docker Desktop primarily relies on Docker Engine and WSL2 technology, running Docker Engine directly and configuring it to operate as a service can help overcome session dependency issues.

To set up Docker Engine as a service, follow these steps:

1. Install Docker Engine: Start by downloading Docker’s official binaries. You can find the installation files and guidelines on Docker’s official website. Make sure to select the correct version for your Windows architecture (either 64-bit).
2. Install NSSM (Non-Sucking Service Manager): NSSM is a utility that helps manage Windows services. You can download it from nssm.cc. This tool simplifies the process of running any application as a Windows service.
3. Create the Docker Service:

• Open a command prompt with administrative privileges.
• Navigate to the location of nssm.exe and use the following command to install Docker as a service:
  nssm install Docker
• In the dialog that appears, set the Path to where your Docker executable is located and add the necessary startup options.

1. Configure the Service: You can adjust settings such as automatic start and recovery options, ensuring Docker restarts automatically if it crashes.
2. Start the Service: After installing the service, use the command:

   nssm start Docker

This command will initiate the Docker service, and you can verify that it is running using:

   nssm status Docker

Verifying Operation

Once Docker is installed as a service, you should test it to ensure everything functions as expected. Open a command prompt and use Docker commands such as docker ps or docker run hello-world to verify the engine’s response.

Conclusion

Running Docker independently of an active Windows session can enhance productivity and streamline operations, especially in multi-user environments. While WSL2 is a common method, setting up Docker Engine as a Windows service provides a flexible and reliable alternative. This approach allows Docker to operate seamlessly in the background, ensuring that developers can manage containers without being restricted by user sessions. With the right setup, you’ll find that running Docker Desktop in this manner meets your needs effectively and efficiently.