UX Suggestion: "Smart" Warning for Duplicated Appdata Paths (with Automation in Mind)

Hello Unraid Community and Devs,

I'm a huge fan of the power and flexibility of the Docker implementation in Unraid. Based on a recent deep-dive into container management, I'd like to propose a feature request that I believe is a minor-to-moderate implementation effort but would address a high-risk scenario for many Docker users, while still respecting advanced and automated workflows.

Unraid 7.1.2

The Challenge: A High-Risk, "Below the Fold" Setting

The core issue arises when a user duplicates a Docker template to create a new, concurrent container but forgets to change the appdata path. This is a high-risk scenario where two running containers could be writing to the same database or config files, risking corruption.

Several factors amplify this risk:

• Hidden Setting: The Host Path configuration is located "below the fold" in the "Show more settings" section, making it very easy to overlook.

• Common Workflow: The risk is highest for users testing new containers on a production/home server, as they are likely to be rapidly creating and modifying containers and are more likely to have important production data at stake.

• No Guardrails: Actions like renaming a container do not trigger a suggestion to also change the appdata path to prevent a collision.

This creates a conflict contrasted to other, perfectly safe workflows (like recreating a stopped container with the same path), where a warning would be unnecessary.

Proposed Solution: A GUI-Only "Smart" Check 💡

To address the high-risk scenario without impacting other workflows, I suggest a GUI-only "smart" check.

The Logic:

• To ensure all automation (via API, CLI, plugins, etc.) is unaffected, this check would only be performed when a user clicks "Apply" within the Unraid Web GUI.

• The check would only trigger if the specified Host Path is already in use by another currently running Docker container.

The User Experience: If these conditions are met, a warning modal would appear:

Warning: Path in Use ⚠️ The path /mnt/user/appdata/plex is currently in use by the running container 'plex'. Sharing this folder can lead to data corruption.

Are you sure you want to proceed?

[Proceed Anyway] [Go Back to Edit]

This feature could be configurable in Docker settings to be disabled by advanced users who understand and accept the risk.

Alternative Solution

As a different approach, the system could offer to create a "safe redirection" by prompting the user to change the appdata path automatically when a container's name is changed, but the appdata path is not.

Thank you for considering this suggestion to add a valuable guardrail to the Docker management experience.