0a017f52cb
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- Replace pip with uv in Dockerfile.service builder stage (~5-10x faster) - Replace pip with uv in CI test step - Separate pyproject.toml copy from source copy in Dockerfile for better Docker layer caching (deps only reinstalled when pyproject.toml changes) - Add cache_from for buildx to reuse layers from previous builds - Remove pip cache workaround from test step (not persisted in K8s)
60 lines
2.3 KiB
Desktop File
60 lines
2.3 KiB
Desktop File
# Multi-stage Dockerfile for all Python microservices.
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# Build args:
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# SERVICE_MODULE — Python module name under services/ (e.g. "news_fetcher")
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# ---------------------------------------------------------------------------
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# Stage 1: builder — install Python dependencies
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# ---------------------------------------------------------------------------
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FROM python:3.12-slim AS builder
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WORKDIR /app
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# Install uv for fast dependency resolution
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RUN pip install uv
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# Copy ONLY dependency metadata first — this layer is cached until
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# pyproject.toml changes, so dependency install is skipped on pure code changes.
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COPY pyproject.toml .
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# Create minimal package stubs so uv can resolve the local editable install
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# without copying all source (which would bust the cache on every commit).
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RUN mkdir -p shared services backtester && \
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uv pip install --system --no-cache-dir ".[api,news,sentiment,trading,backtester]" && \
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uv pip install --system --no-cache-dir curl_cffi 2>/dev/null || true
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# NOW copy the actual source code (changes here don't re-trigger dep install)
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COPY shared/ shared/
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COPY services/ services/
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COPY backtester/ backtester/
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COPY alembic/ alembic/
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COPY alembic.ini .
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# Re-install in-place so the package metadata points to actual source
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RUN uv pip install --system --no-cache-dir --no-deps -e .
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# ---------------------------------------------------------------------------
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# Stage 2: slim runtime image
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# ---------------------------------------------------------------------------
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FROM python:3.12-slim
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RUN apt-get update && apt-get install -y --no-install-recommends curl && rm -rf /var/lib/apt/lists/*
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WORKDIR /app
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# Copy installed packages and CLI entry-points from the builder
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COPY --from=builder /usr/local/lib/python3.12/site-packages /usr/local/lib/python3.12/site-packages
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COPY --from=builder /usr/local/bin /usr/local/bin
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# Copy application source code
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COPY --from=builder /app .
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ARG SERVICE_MODULE="api_gateway"
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ENV SERVICE_MODULE=${SERVICE_MODULE}
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ARG HEALTH_PORT="9090"
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ENV HEALTH_PORT=${HEALTH_PORT}
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# Check /metrics endpoint (all services expose it via OpenTelemetry)
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HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
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CMD curl -sf http://localhost:${HEALTH_PORT}/metrics > /dev/null || exit 1
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CMD python -m services.${SERVICE_MODULE}.main
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