Add Docker files

Dockerfile

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+FROM python:3.8-slim-buster
+
+WORKDIR /usr/src/app
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+ARG script=scalesrv.py
+CMD [ "python", $script ]

docker-compose.yml

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+version: '3'
+services:
+  server:
+    build:
+      context: .
+      args:
+        script: scalesrv.py
+    ports:
+      - "18001:18001"
+  clustering:
+    build:
+      context: .
+      args:
+        script: cluster.py

requirements.txt

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+paho-mqtt