smaller image

deployment/lambda/extractor_and_loader/docker/Dockerfile

@@ -1,25 +1,30 @@
-FROM public.ecr.aws/lambda/python:3.12
+# ---------- Builder Stage (uses Poetry) ----------
+FROM python:3.12-slim as builder
 
-# Install Poetry (you could pin a version if you like)
-RUN curl -sSL https://install.python-poetry.org | python3 -
-
-# Add Poetry to PATH
-ENV PATH="/root/.local/bin:$PATH"
+# Install Poetry
+RUN pip install --no-cache-dir poetry
 
 # Set working directory
-WORKDIR /var/task
+WORKDIR /app
 
-# Copy Poetry files first to leverage Docker layer caching
-COPY pyproject.toml poetry.lock README.md ./
-COPY etl/ etl/
+# Copy only what's needed for dependency resolution
+COPY pyproject.toml poetry.lock ./
 
+# Export dependencies (no dev) to requirements.txt
+RUN poetry export -f requirements.txt --without-hashes --only main -o requirements.txt
 
-# Install dependencies into /var/task
-RUN poetry config virtualenvs.create false \
-  && poetry install --only main --no-interaction --no-ansi
+# Install into a clean target folder
+RUN pip install --no-cache-dir -r requirements.txt --target /python
 
-# Copy app code
-COPY deployment/lambda/extractor_and_loader/docker/app.py ./
+# ---------- Final Lambda Image ----------
+FROM public.ecr.aws/lambda/python:3.12
 
-# Set Lambda handler
-CMD ["app.handler"]
+# Copy installed dependencies from builder
+COPY --from=builder /python /var/task
+
+# Copy your app code
+COPY etl/ /var/task/etl/
+COPY deployment/lambda/extractor_and_loader/docker/app.py /var/task/
+
+# Set the Lambda handler (file.function_name)
+CMD ["app.handler"]