Dockerfile

+FROM python:3.10
+
+RUN useradd -m app
+WORKDIR /home/app
+COPY requirements.txt requirements.txt
+RUN pip install -r requirements.txt
+
+COPY app.py qgram.py /home/app/
+COPY examples/titles.json /home/app/examples/
+RUN chown -R root:app /home/app
+RUN chmod -R u=rX,g=rX,o=- /home/app
+USER app:app
+
+ENTRYPOINT ["gunicorn", "-w", "4", "-b", "0.0.0.0", "app:app"]

Makefile

+TAG=0.1.0
+
+build:
+	DOCKER_DEFAULT_PLATFORM=linux/amd64 docker build -t gitlab.sauerburger.com:5049/frank/wakefield-movie-recommender:$(TAG) .
+
+push: build
+	DOCKER_DEFAULT_PLATFORM=linux/amd64 docker push gitlab.sauerburger.com:5049/frank/wakefield-movie-recommender:$(TAG)

app.py

@@ -9,7 +9,7 @@ import qgram
 
 app = Flask(__name__)
 
-with open("examples/titles.json") as fileobj:
+with open("examples/titles.json", encoding="utf-8") as fileobj:
     titles = json.load(fileobj)
 
 index = qgram.QGramIndex()
@@ -18,12 +18,13 @@ for title, _ in titles.values():
 
 @app.route("/")
 def suggest():
+    """Serve movie title suggestions"""
     query = request.args.get("q")
-    if not query:
-        return {}
+    results = []
+
+    if query:
+        results = index.search(query)
 
-    results = index.search(query)
     return {
         "suggestions": results[:100]
     }
-

requirements.txt

 flask~=2.1.2
+gunicorn~=20.1.0