refactor: optimize docker image from 3G to 1.4G

add multi stage to the docker image

replace python image with python slim

Author: thamudi

.dockerignore

@@ -1,4 +1,5 @@
 venv
-.git
-.github
-__pycache__
+.*
+*.md
+LICENSE
+__pycache__

Dockerfile

@@ -1,13 +1,21 @@
-FROM python:3.10.6
+FROM python:3.10.6-slim AS builder
 
 WORKDIR /app
 
 RUN pip install --upgrade pip
+ADD requirements.txt /tmp
+RUN pip install -r /tmp/requirements.txt
+COPY . /app
 
-ADD requirements.txt .
-RUN pip install -r requirements.txt
 
+# Run stage
+FROM python:3.10.6-slim
 
-ADD . /app
+WORKDIR /app
+
+COPY --from=builder /usr/local/lib/python3.10/site-packages  /usr/local/lib/python3.10/site-packages
+COPY --from=builder /usr/local/bin/ /usr/local/bin/
+COPY --from=builder /app .
+
+ENTRYPOINT [ "uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000" ]
 
-ENTRYPOINT [ "uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000" ]