add dockerfile

lambdas/rich_pdf_ingestion/src/Dockerfile

@@ -0,0 +1,13 @@
+FROM public.ecr.aws/lambda/python:3.11
+
+# Copy requirements.txt
+COPY requirements.txt ${LAMBDA_TASK_ROOT}
+
+# Install the specified packages
+RUN pip install -r requirements.txt
+
+# Copy function code
+COPY index.py ${LAMBDA_TASK_ROOT}
+
+# Set the CMD to your handler (could also be done as a parameter override outside of the Dockerfile)
+CMD [ "index.lambda_handler" ]