Added Dockerfile

Author: Yoichi Kawasaki

v2functions/Dockerfile

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+FROM mcr.microsoft.com/azure-functions/python:2.0
+
+COPY . /home/site/wwwroot
+
+RUN cd /home/site/wwwroot && \
+    pip install -r requirements.txt

v2functions/http-trigger-dump-request/__init__.py

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+import logging
+import json
+import azure.functions as func
+
+def main(req: func.HttpRequest) -> func.HttpResponse:
+    logging.info('Python HTTP trigger function processed a request.')
+    return func.HttpResponse(
+        json.dumps({
+            'method': req.method,
+            'url': req.url,
+            'headers': dict(req.headers),
+            'params': dict(req.params),
+            'get_body': req.get_body().decode()
+        })
+    )

v2functions/http-trigger-dump-request/function.json

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+{
+  "scriptFile": "__init__.py",
+  "bindings": [
+    {
+      "authLevel": "anonymous",
+      "type": "httpTrigger",
+      "direction": "in",
+      "name": "req"
+    },
+    {
+      "type": "http",
+      "direction": "out",
+      "name": "$return"
+    }
+  ]
+}