podman-desktop/website/docs/migrating-from-docker/using-the-docker_host-environment-variable.md

---
sidebar_position: 2
title: Using the `DOCKER_HOST` environment variable
description: Using the `DOCKER_HOST` environment variable can make it easier to migrate from Docker to Podman Desktop, as it allows you to continue using familiar Docker commands while taking advantage of the benefits of Podman.
keywords: [podman desktop, podman, containers, docker_host, environment, variable]
tags: [migrating-from-docker]
---

import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';

# Using the `DOCKER_HOST` environment variable

Consider using the `DOCKER_HOST` environment variable to migrate transparently from Docker to Podman Desktop on all platforms.

- Continue using familiar Docker commands.
- Take advantage of the benefits of Podman.
- Your tools, such as [Gradle](https://gradle.org/) or [Testcontainers](https://www.testcontainers.org/), communicate with Podman without reconfiguration.

#### Prerequisites

- Podman

#### Procedure

 <Tabs groupId="operating-systems">
   <TabItem value="win" label="Windows">

1. Identify the location of your Podman pipe <!-- markdownlint-disable MD029 -->

```shell-session
$ podman machine inspect --format '{{.ConnectionInfo.PodmanPipe.Path}}'
```

2. Set the `DOCKER_HOST` environment variable to your Podman pipe location. You'll need to replace back slashes with forward slashes and add the `npipe://` scheme to the path retrieved previously: <!-- markdownlint-disable MD029 -->

> Example:
>
> **prefix**podman-pipe
>
> **npipe://**//./pipe/podman-machine-default

Depending on your terminal emulator of preference there is a little variation between the commands to set a session level environment variable:

##### cmd - Command Prompt

```cmd
set DOCKER_HOST=npipe://<inspect_command_output>
```

##### Git Bash

```bash
export DOCKER_HOST=npipe://<inspect_command_output>
```

##### Powershell

Don't miss the quotes on the value or powershell will try to interpret it as a separate command instead of a value.

```powershell
$env:DOCKER_HOST="npipe://<inspect_command_output>"
```

Ideally you should set `DOCKER_HOST` at the system or user level environment variables (or even load it in your CL emulator init script of choice)

Note: Setting the `DOCKER_HOST` environment variable isn't necessary on Windows since Podman also listens to the default `docker_engine` pipe. But it may be necessary if you get the following error: **Error: socket of machine is not set** while trying to use the podman compose command.
</TabItem>
<TabItem value="mac" label="macOS">

1. Identify the location of your Podman socket

```shell-session
$ podman machine inspect --format '{{.ConnectionInfo.PodmanSocket.Path}}'
```

2. Set the `DOCKER_HOST` environment variable to your Podman socket location. Be sure to add the `unix://` scheme to the path retrieved previously:

```shell-session
$ export DOCKER_HOST=unix://<your_podman_socket_location>
```

</TabItem>
<TabItem value="linux" label="Linux">

1. Identify the location of your Podman socket

```shell-session
$ podman info --format '{{.Host.RemoteSocket.Path}}'
```

2. Set the `DOCKER_HOST` environment variable to your Podman socket location. Be sure to add the `unix://` scheme to the path retrieved previously:

```shell-session
$ export DOCKER_HOST=unix://<your_podman_socket_location>
```

   </TabItem>

 </Tabs>

#### Verification

- Your tools using the `DOCKER_HOST` environment variable, such as [Gradle](https://gradle.org/) or [Testcontainers](https://www.testcontainers.org/), communicate with Podman without reconfiguration.