New commit with working container containing functional flask running

Dockerfile

@@ -0,0 +1,12 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt gunicorn
+
+COPY . .
+
+EXPOSE 5000
+
+CMD ["gunicorn", "-b", "0.0.0.0:5000", "app:app"]

compose.yml

@@ -0,0 +1,18 @@
+services:
+  flask:
+    build: .
+    ports:
+      - "5001:5000"
+    environment:
+      DATABASE_URL: postgresql://postgres:postgres@db:5432/flaskdb
+    depends_on:
+      - db
+
+  db:
+    image: postgres:16
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: flaskdb
+    ports:
+      - "5432:5432"

requirements.txt

@@ -1,3 +1,7 @@
-Flask==1.1.2
-Werkzeug==1.0.1
-markupsafe==2.0.1
+blinker==1.9.0
+click==8.3.3
+Flask==3.1.3
+itsdangerous==2.2.0
+Jinja2==3.1.6
+MarkupSafe==3.0.3
+Werkzeug==3.1.8