working version

deployment/lambda/extractor_and_loader/docker/Dockerfile

@@ -1,41 +1,25 @@
-# ---------- Stage 1: Build (Poetry) ----------
-FROM public.ecr.aws/lambda/python:3.12 as builder
+FROM public.ecr.aws/lambda/python:3.12
 
-ENV PATH="/root/.local/bin:$PATH" \
-    PIP_NO_CACHE_DIR=1 \
-    PYTHONUNBUFFERED=1 \
-    PYTHONDONTWRITEBYTECODE=1
-
-# Install Poetry
+# Install Poetry (you could pin a version if you like)
 RUN curl -sSL https://install.python-poetry.org | python3 -
 
-WORKDIR /app
-
-# Copy poetry config and install deps
-COPY pyproject.toml poetry.lock ./
-RUN poetry config virtualenvs.create false \
- && poetry install --only main --no-interaction --no-ansi \
- && rm -rf ~/.cache
-
-# Copy source code
-COPY etl/ etl/
-COPY deployment/lambda/extractor_and_loader/docker/app.py .
-
-# ---------- Stage 2: Runtime (Slim + RIC) ----------
-FROM python:3.12-slim
-
-ENV PYTHONDONTWRITEBYTECODE=1 \
-    PYTHONUNBUFFERED=1 \
-    PIP_NO_CACHE_DIR=1
-
-# Install AWS Lambda Runtime Interface Client
-RUN pip install awslambdaric
+# Add Poetry to PATH
+ENV PATH="/root/.local/bin:$PATH"
 
+# Set working directory
 WORKDIR /var/task
 
-# Copy minimal runtime files from builder
-COPY --from=builder /app /var/task
+# Copy Poetry files first to leverage Docker layer caching
+COPY pyproject.toml poetry.lock README.md ./
+COPY etl/ etl/
 
-# Lambda entrypoint
-ENTRYPOINT ["python3", "-m", "awslambdaric"]
-CMD ["app.handler"]
+
+# Install dependencies into /var/task
+RUN poetry config virtualenvs.create false \
+  && poetry install --only main --no-interaction --no-ansi
+
+# Copy app code
+COPY deployment/lambda/extractor_and_loader/docker/app.py ./
+
+# Set Lambda handler
+CMD ["app.handler"]