feat: add Dockerfile and improve docker-compose configuration

- Add Dockerfile based on python:3.12-slim for containerizing the API
- Add .dockerignore to exclude unnecessary files from build context
- Switch postgres_data volume to named volume in docker-compose.yaml

.dockerignore

@@ -0,0 +1,13 @@
+venv/
+.env
+__pycache__/
+*.pyc
+*.pyo
+.pytest_cache/
+htmlcov/
+.coverage
+data/
+*.md
+.git/
+.gitignore
+postgres_data/

Dockerfile

@@ -0,0 +1,13 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app/ ./app/
+COPY ml_model/ ./ml_model/
+
+EXPOSE 7860
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]

docker-compose.yaml

@@ -6,7 +6,7 @@ services:
       - POSTGRES_USER=postgres
       - POSTGRES_PASSWORD=postgres
     volumes:
-      - "./postgres_data:/var/lib/postgresql/data:rw"
+      - postgres_data:/var/lib/postgresql/data:rw
     ports:
       - "5432:5432"
   pgadmin:
@@ -15,4 +15,7 @@ services:
       - PGADMIN_DEFAULT_EMAIL=admin@admin.com
       - PGADMIN_DEFAULT_PASSWORD=root
     ports:
-      - "8080:80"
+      - "8080:80"
+
+volumes:
+  postgres_data: