chore: optimize image size

.dockerignore

@@ -1,13 +1,34 @@
-env
-venv
-__pycache__
-*.pyc
-*.pyo
+**/__pycache__
+**/*.pyc
+**/*.pyo
+**/*.pyd
+.Python
+env/
+venv/
+.env
+.venv
+pip-log.txt
+pip-delete-this-directory.txt
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.log
+.pytest_cache/
 .git
 .gitignore
+README.md
+LICENSE
+tests/
+docs/
+.dockerignore
+Dockerfile
 *.md
 *.txt
-*.log
-LICENSE
-.cache
-.ropeproject
+*.spec
+.idea/
+.vscode/
+**/.DS_Store

Dockerfile

@@ -1,6 +1,5 @@
-FROM python:3.11-slim
-
-LABEL description="A web-based file converter that transforms various file formats into Markdown."
+# Build stage
+FROM python:3.11-slim as builder
 
 WORKDIR /app
 
@@ -14,12 +13,18 @@ RUN pip install --no-cache-dir poetry && \
     poetry config virtualenvs.create false && \
     poetry install --no-interaction --no-ansi
 
+# Runtime stage
+FROM python:3.11-slim
+
+WORKDIR /app
+
+COPY --from=builder /usr/local/lib/python3.11/site-packages/ /usr/local/lib/python3.11/site-packages/
 COPY . .
 
-ENV FLASK_APP=app.py
-ENV FLASK_ENV=development
-ENV PYTHONUNBUFFERED=1
+ENV FLASK_APP=app.py \
+    FLASK_ENV=development \
+    PYTHONUNBUFFERED=1
 
 EXPOSE 5000
 
-CMD ["python", "main.py"]
+CMD ["python", "main.py"]