fix permissions and file location issues

Dockerfile

@@ -20,5 +20,7 @@ COPY --chown=user . $HOME/app
 WORKDIR $HOME/app/instance-labeler
 RUN yarn install && yarn build
 
+WORKDIR $HOME/app
+
 
 CMD ["/code/.venv/bin/python3", "main.py"]

app/main.py

@@ -1,3 +1,4 @@
+import os
 import io
 import base64
 import numpy as np
@@ -93,7 +94,7 @@ class ImageData(BaseModel):
 
 @app.get("/")
 async def index():
-    return FileResponse(path="/app/instance-labeler/out/index.html", media_type="text/html")
+    return FileResponse(path=f"{os.environ['HOME']}/app/instance-labeler/out/index.html", media_type="text/html")
 
 
 @app.post("/v1/get_label_preds/{image}")
@@ -275,4 +276,4 @@ async def get_all_images() -> Response:
     return JSONResponse(content={"images": DATA.get_all_images()})
 
 
-app.mount("/", StaticFiles(directory="/app/instance-labeler/out", html=True), name="static")
+app.mount("/", StaticFiles(directory=f"{os.environ['HOME']}/app/instance-labeler/out", html=True), name="static")