From ae926d74fcc573b5b206814247f6d4425ef22a03 Mon Sep 17 00:00:00 2001
From: FireMasterK <20838718+FireMasterK@users.noreply.github.com>
Date: Fri, 11 Sep 2020 09:36:41 +0000
Subject: [PATCH] Multi stage Docker build file.

---
 Dockerfile | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 5f8971d..ee57185 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,13 +1,23 @@
-FROM python:3-alpine
+FROM python:3-alpine AS builder
 
 WORKDIR /usr/src/app
 
 COPY requirements.txt ./
 
-RUN apk --no-cache add gcc musl-dev libffi-dev openssl-dev libxml2-dev libxslt-dev file llvm-dev make g++ \
-  && pip install --no-cache-dir wheel cryptography gunicorn pymysql \
-  && pip install --no-cache-dir -r requirements.txt \
-  && apk del gcc musl-dev libffi-dev openssl-dev file llvm-dev make g++
+# Build Dependencies
+RUN apk --no-cache --virtual build-deps add gcc musl-dev libffi-dev openssl-dev libxml2-dev libxslt-dev file llvm-dev make g++
+
+# Python Dependencies
+RUN pip install --no-cache-dir --prefix=/install wheel cryptography gunicorn pymysql
+RUN pip install --no-cache-dir --prefix=/install -r requirements.txt
+
+FROM python:3-alpine
+
+WORKDIR /usr/src/app
+
+# Runtime Dependencies
+RUN apk --no-cache add libxml2 libxslt
+COPY --from=builder /install /usr/local
 
 COPY . .