feat(docs): add docs for in-place s3 update

Part-of: <https://dev.funkwhale.audio/funkwhale/funkwhale/-/merge_requests/2506>

docs/administrator/manage-script/index.md

@@ -15,5 +15,6 @@ Clean database <database>
 Add album and artist tags <tags>
 thumbnails
 fix-uploads
+update-s3-links
 
 ```

docs/administrator/manage-script/update-s3-links.md

@@ -0,0 +1,153 @@
+# Update in-place location reference for S3
+
+If you've moved your content from a local disk to S3 storage, you need to update the location of any files you imported using `--in-place`. To ensure you don't update entries by accident, all commands run in dry run mode by default. Run commands with the `--no-dry-run` flag to update the references.
+
+:::{note}
+This command doesn't move files. It only updates the location of the file to its S3 location based on [the S3 settings in your environment file](/administrator/configuration/object-storage).
+:::
+
+:::{list-table} Arguments
+:header-rows: 1
+
+- - Argument
+  - Description
+- - `source`
+  - The source directory of your in-place import.
+
+    If no `source` is specified, all in-place imported tracks are updated.
+
+- - `target`
+  - The subdirectory in the S3 bucket where the files are now located.
+
+    If no `target` is specified, the current path of the file is used.
+
+:::
+
+## Examples
+
+### Update all in-place imports
+
+::::{tab-set}
+
+:::{tab-item} Debian
+:sync: debian
+
+1. SSH into your Funkwhale server.
+2. Navigate to the Funkwhale directory.
+
+   ```{code-block} console
+   $ cd /srv/funkwhale
+   ```
+
+3. Run the `funkwhale-manage` command line interface to update your in-place imports.
+
+   ```{code-block} console
+   $ venv/bin/funkwhale-manage fw inplace_to_s3 --no-dry-run
+   ```
+
+:::
+
+:::{tab-item} Docker
+:sync: docker
+
+1. SSH into your Funkwhale server.
+2. Navigate to the Funkwhale directory.
+
+   ```{code-block} console
+   $ cd /srv/funkwhale
+   ```
+
+3. Run the `funkwhale-manage` command line interface to update your in-place imports.
+
+   ```{code-block} console
+   $ sudo docker compose run --rm api funkwhale-manage inplace_to_s3 --no-dry-run
+   ```
+
+:::
+::::
+
+### Update in-place imports from a specific directory
+
+::::{tab-set}
+
+:::{tab-item} Debian
+:sync: debian
+
+1. SSH into your Funkwhale server.
+2. Navigate to the Funkwhale directory.
+
+   ```{code-block} console
+   $ cd /srv/funkwhale
+   ```
+
+3. Run the `funkwhale-manage` command line interface to update your in-place imports.
+
+   ```{code-block} console
+   $ venv/bin/funkwhale-manage fw inplace_to_s3 --source "/music" --no-dry-run
+   ```
+
+:::
+
+:::{tab-item} Docker
+:sync: docker
+
+1. SSH into your Funkwhale server.
+2. Navigate to the Funkwhale directory.
+
+   ```{code-block} console
+   $ cd /srv/funkwhale
+   ```
+
+3. Run the `funkwhale-manage` command line interface to update your in-place imports.
+
+   ```{code-block} console
+   $ sudo docker compose run --rm api funkwhale-manage inplace_to_s3 --source "/music" --no-dry-run
+   ```
+
+:::
+::::
+
+All in-place imports in the `/music` folder are updated to reference the `/music` subdirectory in your S3 bucket.
+
+### Reference a different target subdirectory
+
+::::{tab-set}
+
+:::{tab-item} Debian
+:sync: debian
+
+1. SSH into your Funkwhale server.
+2. Navigate to the Funkwhale directory.
+
+   ```{code-block} console
+   $ cd /srv/funkwhale
+   ```
+
+3. Run the `funkwhale-manage` command line interface to update your in-place imports.
+
+   ```{code-block} console
+   $ venv/bin/funkwhale-manage fw inplace_to_s3 --source "/music" --target "/new_import" --no-dry-run
+   ```
+
+:::
+
+:::{tab-item} Docker
+:sync: docker
+
+1. SSH into your Funkwhale server.
+2. Navigate to the Funkwhale directory.
+
+   ```{code-block} console
+   $ cd /srv/funkwhale
+   ```
+
+3. Run the `funkwhale-manage` command line interface to update your in-place imports.
+
+   ```{code-block} console
+   $ sudo docker compose run --rm api funkwhale-manage inplace_to_s3 --source "/music" --target "/new_import" --no-dry-run
+   ```
+
+:::
+::::
+
+All in-place imports in the `/music` folder are updated to reference the `/new_import` subdirectory in your S3 bucket.