docs: DOC-2374 Edit Docker customization step for Edgeforge (#9728) (#9746)

* Add Docker customization warning to EdgeForge

* ci: auto-formatting prettier issues

* Update palette-canvos.md

* ci: auto-formatting prettier issues

* Update palette-canvos.md

* Update palette-canvos.md

* ci: auto-formatting prettier issues

* Update palette-canvos.md

* ci: auto-formatting prettier issues

* Update palette-canvos.md

* ci: auto-formatting prettier issues

* Empty commit to trigger security checks

---------


(cherry picked from commit 51160a2)

Co-authored-by: svetlana-efimova <svetlana.efimova@spectrocloud.com>
Co-authored-by: svetlana-efimova <205686560+svetlana-efimova@users.noreply.github.com>

Author: vault-token-factory-spectrocloud[bot]

docs/docs-content/clusters/edge/edgeforge-workflow/palette-canvos/palette-canvos.md

@@ -495,29 +495,38 @@ required Edge artifacts.
 
    :::
 
-9. Use the following command to append the [WireGuard](https://www.wireguard.com/install/) installation instructions to
-   the `Dockerfile`. You can install more tools and dependencies and configure the image to meet your needs. Add your
-   customizations below the line tagged with the `Add any other image customizations here` comment in the `Dockerfile`.
-   Do not edit or add any lines before this tagged comment.
+9. Customize the `Dockerfile` as needed. You can install tools and dependencies and make other image modifications. Add
+   your customizations below the line tagged with the `Add any other image customizations here` comment in the
+   `Dockerfile`. Do not edit or add any lines before this tagged comment.
 
-   ```bash
-   echo 'RUN sudo zypper refresh && sudo zypper install --non-interactive wireguard-tools' >> Dockerfile
-   ```
+   :::warning
 
-   View the newly created file to ensure the instruction to install WireGuard is appended correctly.
+   When customizing the `Dockerfile` to add custom binaries, install them into `/usr/bin`. Do not use `/usr/local`, as
+   this directory is mounted from the persistent partition at boot and makes files added during image build unavailable
+   at runtime.
 
-   ```bash
-   cat Dockerfile
+   :::
+
+   For example, you can add the following line to the `Dockerfile` to install
+   [WireGuard](https://www.wireguard.com/install/).
+
+   ```dockerfile
+   ...
+   ###########################Add any other image customizations here #######################
+
+   RUN sudo zypper refresh && sudo zypper install --non-interactive wireguard-tools
    ```
 
-   :::warning
+   Package installation commands in the `Dockerfile` must be non-interactive. Ensure you use the appropriate
+   non-interactive flag for your package manager, for example, `--non-interactive` for Zypper or `--yes` for Advanced
+   Package Tool (APT). Interactive prompts cause the image build to fail. This guidance applies to all dependencies you
+   add through the `Dockerfile`.
 
-   Using the `-y` option with the `sudo zypper install` command is critical to successfully build the images. The
-   default behavior for package installations is to prompt the user for permission to install the package. A user prompt
-   will cause the image creation process to fail. This guidance applies to all dependencies you add through the
-   `Dockerfile`.
+   View the `Dockerfile` to ensure the instruction to install WireGuard is appended correctly.
 
-   :::
+   ```bash
+   cat Dockerfile
+   ```
 
 10. <PartialsComponent category="palette-edge-canvos-version" name="canvos-edge-user-data" />