Utilizing Docker for portability

Dockerfile

@@ -0,0 +1,9 @@
+FROM python:3.13
+WORKDIR /ETL
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+CMD ["python3", "./src/load.py"]

compose.yaml

@@ -0,0 +1,46 @@
+name: etl-and-db
+
+services:
+  db:
+    container_name: postgres_db
+    image: postgres:18.0-trixie
+    networks:
+      - backend
+    expose:
+      - "5432"
+    ports:
+      - "8081:5432"
+    shm_size: 128mb
+    environment:
+      - POSTGRES_PASSWORD=${DB_PASSWORD}
+      - POSTGRES_USER=${DB_USER}
+      - POSTGRES_DB=${DB_NAME}
+    volumes:
+      - postgres_data:/var/lib/postgresql
+    healthcheck:
+      test: ["CMD", "pg_isready", "-U", "etl_agent", "-d", "LMS-Test"]
+      interval: 30s
+      retries: 3
+      start_period: 30s
+      timeout: 10s
+    restart: always
+  
+  etl:
+    image: etl-pipeline:0.3
+    depends_on:
+      - db
+    networks:
+      - backend
+    command: "python3 ./src/orchestrator.py"
+    restart: no
+    volumes:
+      - postgres_data:/var/lib/etl
+    pre_stop:
+      - command: docker cp CONTAINER:/var/lib/etl/lms-etl.log /tmp/app_logs
+
+networks:
+  backend:
+    name: pg_network
+
+volumes:
+  postgres_data: