Adding two placeholder containers

api-placeholder/Dockerfile

@@ -0,0 +1,10 @@
+FROM python:3
+
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PORT 8080
+
+WORKDIR /app
+COPY . /app
+
+ENTRYPOINT ["python", "app.py"]

api-placeholder/app.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+import os
+import json
+import logging
+from http.server import BaseHTTPRequestHandler, HTTPServer
+
+
+PORT = int(os.getenv('PORT', 8080))
+
+
+class JsonEcho(BaseHTTPRequestHandler):
+    def send_json_response(self, **data):
+        response = json.dumps(data).encode('utf-8')
+        self.send_response(200)
+        self.send_header('Content-type', 'application/json')
+        self.send_header('Content-length', len(response))
+        self.end_headers()
+        self.wfile.write(response)
+
+    def do_GET(self):
+        logging.info(f'GET {self.path}')
+        self.send_json_response(path=self.path, headers=dict(self.headers.items()))
+
+
+def run(server_class=HTTPServer, handler_class=JsonEcho, port=8080):
+    httpd = server_class(('', PORT), handler_class)
+    logging.info('Starting API placeholder...')
+    try:
+        httpd.serve_forever()
+    except KeyboardInterrupt:
+        pass
+    httpd.server_close()
+    logging.info('Stopping API placeholder...')
+
+
+if __name__ == '__main__':
+    logging.basicConfig(level=logging.INFO)
+    run()