Docker testing

composetest/Dockerfile

@@ -0,0 +1,8 @@
+# syntax=docker/dockerfile:1
+FROM python:3.10-slim
+WORKDIR /code
+COPY requirements.txt requirements.txt
+RUN pip install -r requirements.txt
+EXPOSE 5000
+COPY . .
+CMD ["python", "app.py"]

composetest/app.py

@@ -0,0 +1,33 @@
+import time
+from http.server import BaseHTTPRequestHandler, HTTPServer
+
+hit_count = 0  # In-memory counter
+
+def get_hit_count():
+    global hit_count
+    hit_count += 1
+    return hit_count
+
+class RequestHandler(BaseHTTPRequestHandler):
+    def do_GET(self):
+        if self.path == '/':
+            count = get_hit_count()
+            response = f'Hello World! I have been seen {count} times.\n'
+            self.send_response(200)
+            self.send_header('Content-type', 'text/plain')
+            self.end_headers()
+            self.wfile.write(response.encode('utf-8'))
+        else:
+            self.send_response(404)
+            self.send_header('Content-type', 'text/plain')
+            self.end_headers()
+            self.wfile.write(b'Not Found\n')
+
+def run(server_class=HTTPServer, handler_class=RequestHandler, port=8000):
+    server_address = ('', port)
+    httpd = server_class(server_address, handler_class)
+    print(f'Starting server on port {port}...')
+    httpd.serve_forever()
+
+if __name__ == '__main__':
+    run()

composetest/docker-compose.yaml

@@ -0,0 +1,8 @@
+services:
+  web:
+    container_name: test
+    build: .
+    ports:
+      - "8000:8000"
+    volumes:
+      - ./:/code