Update flask version. Use docker discover host instead of using a environment variable way. Remove unnecessary files. In the endpoint /info, add the container id.

Signed-off-by: Dany Savard <dany.savard@gmail.com>

nginx-wsgi-flask/flask/Dockerfile

@@ -26,7 +26,4 @@ ENV PATH="$VIRTUAL_ENV/bin:$PATH"
 RUN export FLASK_APP=app.py
 RUN pip install -r requirements.txt
 
-# define the port number the container should expose
-EXPOSE 5000
-
 CMD ["python", "app.py"]

nginx-wsgi-flask/flask/app.py

@@ -1,4 +1,5 @@
 from flask import Flask, request, jsonify
+import socket
 
 app = Flask(__name__)
 
@@ -17,6 +18,7 @@ def info():
 		'connecting_ip': request.headers['X-Real-IP'],
 		'proxy_ip': request.headers['X-Forwarded-For'],
 		'host': request.headers['Host'],
+		'containe_id': socket.gethostname(),
 		'user-agent': request.headers['User-Agent']
 	}
 

nginx-wsgi-flask/flask/requirements.txt

@@ -1,2 +1,2 @@
-Flask==1.1.1
-gunicorn==20.0.4
+Flask==2.3.2
+gunicorn==21.0.1

nginx-wsgi-flask/flask/wsgi.py

@@ -1,5 +0,0 @@
-from app import app
-import os
-
-if __name__ == "__main__":
-    app.run(host='0.0.0.0', port=os.environ.get("FLASK_SERVER_PORT"), debug=True)