{* ../../docs_src/sub_applications/tutorial001_py39.py hl[11, 14:16] *}

### Mount the sub-application { #mount-the-sub-application }

In your top-level application, `app`, mount the sub-application, `subapi`.

In this case, it will be mounted at the path `/subapi`:

{* ../../docs_src/sub_applications/tutorial001_py39.py hl[11, 19] *}

			// At this point if the mount point has a common prefix two conditions can happen.
			// - mount.Path matches exact with `path` means we can proceed no error here.
			// - mount.Path doesn't match (means cross-device mount), should error out.
			if mount.Path != path {
				crossMounts = append(crossMounts, mount)
			}
		}
	}

# Including WSGI - Flask, Django, others { #including-wsgi-flask-django-others }

You can mount WSGI applications as you saw with [Sub Applications - Mounts](sub-applications.md){.internal-link target=_blank}, [Behind a Proxy](behind-a-proxy.md){.internal-link target=_blank}.

For that, you can use the `WSGIMiddleware` and use it to wrap your WSGI application, for example, Flask, Django, etc.

## Using `WSGIMiddleware` { #using-wsgimiddleware }

* worker: воркер
* lifespan: lifespan (do not translate when it's about lifespan events, but translate as `жизненный цикл` or `срок жизни` in other cases)
* mount (verb): монтировать
* mount (noun): точка монтирования / mount (keep in English if it's a FastAPI keyword)
* plugin: плагин
* plug-in: плагин
* full stack: full stack (do not translate)
* full-stack: full-stack (do not translate)

			t.Errorf("got unexpected mountInfo[2]: %#v", mounts[2])
		}
	}
	// Error cases where parsing fails with invalid Freq and Pass params.
	{
		errorCases := []string{
			"/dev/1 /path/to/mount type flags a 0\n",
			"/dev/2 /path/to/mount type flags 0 b\n",
		}
		for _, ec := range errorCases {
			_, rerr := parseMountFrom(strings.NewReader(ec))
			if rerr == nil {
				t.Errorf("expected error")
			}
		}
	}
}

Diese Unteranwendung ist nur eine weitere Standard-FastAPI-Anwendung, aber diese wird „gemountet“:

{* ../../docs_src/sub_applications/tutorial001_py39.py hl[11, 14:16] *}

### Die Unteranwendung mounten { #mount-the-sub-application }

Mounten Sie in Ihrer Top-Level-Anwendung `app` die Unteranwendung `subapi`.

In diesem Fall wird sie im Pfad `/subapi` gemountet:

{* ../../docs_src/sub_applications/tutorial001_py39.py hl[11, 19] *}

from fastapi import FastAPI
from fastapi.staticfiles import StaticFiles

app = FastAPI()

chmod +x /mnt/export/${USER}/bin/minio
```

Alternatively, if you have an existing legacy binary, you can still use it, but note that it will not receive updates.

Bind your `proc` mount to the target chroot directory

```
sudo mount --bind /proc /mnt/export/${USER}/proc
```

## 3. Run Standalone MinIO in Chroot

### GNU/Linux

```sh

    name = request.args.get("name", "World")
    return f"Hello, {escape(name)} from Flask!"


app = FastAPI()


@app.get("/v2")
def read_main():
    return {"message": "Hello World"}

from fastapi import FastAPI, Request
from fastapi.responses import HTMLResponse
from fastapi.staticfiles import StaticFiles
from fastapi.templating import Jinja2Templates

app = FastAPI()

app.mount("/static", StaticFiles(directory="static"), name="static")


templates = Jinja2Templates(directory="templates")


@app.get("/items/{id}", response_class=HTMLResponse)
async def read_item(request: Request, id: str):