update

app.py

@@ -1,7 +0,0 @@
-from fastapi import FastAPI
-
-app = FastAPI()
-
-@app.get("/")
-def greet_json():
-    return {"Hello": "World!"}

dockerfile

@@ -1,9 +1,11 @@
-FROM python:3.8
+FROM python:3.9
 
-COPY . .
+WORKDIR /code
+
+COPY ./requirements.txt /code/requirements.txt
 
-WORKDIR /
+RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
-RUN pip install --no-cache-dir --upgrade -r /requirements.txt
+COPY . .
 
-CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]

main.py

@@ -1 +1,9 @@
-print("Hello")
+import flask
+
+app = flask.Flask(__name__)
+
+@app.route('/')
+def index():
+    return flask.render_template('index.html')
+
+app.run()