feature: 构建双架构镜像 (#101)

feature: 构建双架构镜像

scripts/images/backend-python/Dockerfile

@@ -0,0 +1,43 @@
+FROM python:3.12-slim
+
+# Single-stage image with build cache optimization using BuildKit cache mounts.
+# Note: to use the cache mount syntax you must build with BuildKit enabled:
+# DOCKER_BUILDKIT=1 docker build . -f scripts/images/datamate-python/Dockerfile -t datamate-backend-python
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    # Poetry configuration
+    POETRY_VERSION=2.2.1 \
+    POETRY_NO_INTERACTION=1 \
+    POETRY_VIRTUALENVS_CREATE=false \
+    POETRY_CACHE_DIR=/tmp/poetry_cache
+
+ENV PATH="/root/.local/bin:$PATH"
+
+WORKDIR /app
+
+# Install Poetry via pipx as Poetry officially recommends
+RUN --mount=type=cache,target=/root/.cache/pip \
+    pip install --upgrade --root-user-action=ignore pip \
+    && pip install --root-user-action=ignore pipx \
+    && pipx install "poetry==$POETRY_VERSION"
+
+# Copy only dependency files first (leverages layer caching when dependencies don't change)
+COPY runtime/datamate-python/pyproject.toml runtime/datamate-python/poetry.lock* /app/
+
+# Install dependencies using Poetry with cache mount
+# --no-root: don't install the project itself yet (only dependencies)
+# --only main: only install main dependencies, not dev dependencies
+RUN --mount=type=cache,target=$POETRY_CACHE_DIR \
+    poetry install --no-root --only main
+
+# Copy the rest of the application
+COPY runtime/datamate-python /app
+
+COPY runtime/datamate-python/deploy/docker-entrypoint.sh /docker-entrypoint.sh
+RUN chmod +x /docker-entrypoint.sh || true
+
+# Expose the application port
+EXPOSE 18000
+
+ENTRYPOINT ["/docker-entrypoint.sh"]