# Attach a volume to a container
{% hint style="danger" %}
This article explains how to attach a new [volume](https://docs.portainer.io/user/docker/volumes) to a running container. This operation destroys the running container and starts a new one with the volume attached.
**Always back up your data before running this operation.**
{% endhint %}
From the menu select **Containers**, select the container that you want to attach a volume to, then click **Duplicate/Edit**.
Scroll down to **Advanced container settings**. Click **Volumes** then click **map additional volume**.
In the **container** field enter the path. In the **volume** field enter the volume to attach to the container.
When you're ready, click **Deploy the container**. When the confirmation message appears, click **Replace**.
