Minimal Docker image size based on Alpine

Author: Abhishek Singh

Dockerfile

@@ -1,11 +1,19 @@
-FROM pypy:3-slim
+FROM python:3-alpine as base
 
-RUN apt-get update
-RUN apt-get -y install g++
-RUN apt-get -y install libzmq3-dev
+WORKDIR /svc
 
-COPY . /sqlite_rx
-WORKDIR /sqlite_rx
+RUN apk update && apk add build-base libzmq musl-dev zeromq-dev
 
-RUN pypy3 -m pip install -r requirements.txt
-RUN pypy3 setup.py install
+RUN pip install --upgrade pip
+RUN pip install Cython
+RUN pip install wheel && pip wheel --wheel-dir=/svc/wheels sqlite_rx
+
+
+FROM python:3-alpine
+RUN apk update && apk add libzmq
+
+COPY --from=base /svc /svc
+WORKDIR /svc
+
+RUN pip install --upgrade pip
+RUN pip install --no-index --find-links=/svc/wheels sqlite_rx

dockerfiles/Dockerfile

@@ -0,0 +1,20 @@
+FROM python:3-alpine as base
+
+WORKDIR /svc
+
+RUN apk update && apk add build-base libzmq musl-dev zeromq-dev
+
+RUN pip install --upgrade pip
+RUN pip install Cython
+RUN pip install wheel && pip wheel --wheel-dir=/svc/wheels sqlite_rx
+
+
+FROM python:3-alpine
+RUN apk update && apk add libzmq
+
+COPY --from=base /svc /svc
+WORKDIR /svc
+
+RUN pip install --upgrade pip
+RUN pip install --no-index --find-links=/svc/wheels sqlite_rx
+

dockerfiles/Dockerfile_cpython

@@ -2,9 +2,6 @@ FROM alpine:edge
 
 RUN apk update && apk add build-base libzmq musl-dev python3 python3-dev zeromq-dev py-pip
 
-COPY . /sqlite_rx
-WORKDIR /sqlite_rx
-
 RUN pip install -U Cython
-RUN pip install -r requirements.txt
-RUN pip install -e .
+RUN pip install -U sqlite_rx
+RUN apk del build-base musl-dev python3-dev zeromq-dev