Update Dockerfile and gunicorn configuration to expose port 4000 and change welcome message in main route

Author: upayanmazumder

api/Dockerfile

@@ -13,8 +13,8 @@ RUN pip install --no-cache-dir -r requirements.txt
 WORKDIR /app
 COPY . .
 
-# Expose port 3000
-EXPOSE 3000
+# Expose port 4000
+EXPOSE 4000
 
 # Run the web service on container startup
 CMD ["gunicorn", "-c", "gunicorn_config.py", "main:app"]

api/gunicorn_config.py

@@ -1,2 +1,2 @@
-bind = "0.0.0.0:3000"
+bind = "0.0.0.0:4000"
 workers = 4

api/main.py

@@ -84,7 +84,7 @@
 
 @app.route('/')
 def home():
-    return "Welcome to the Flask App"
+    return "Welcome to the CAS API"
 
 @app.route('/push', methods=['POST'])
 def add_article():