From 73d0996c3001ea18a7de0dda988d9675f44e984b Mon Sep 17 00:00:00 2001
From: saundersp <pierre.saundersgb@gmail.com>
Date: Tue, 2 Jul 2024 20:45:44 +0200
Subject: [PATCH] Dockerfile : multi-phase to reduce image from 224 MB to 10 MB

---
 Dockerfile | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index adfa2ff..6f52044 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20.0
+FROM alpine:3.20.1 AS builder
 
 RUN apk add --no-cache \
 	make=4.4.1-r2 \
@@ -13,4 +13,16 @@ COPY *.cpp *.hpp Makefile ./
 
 RUN make -j "$(nproc)"
 
-ENTRYPOINT ["bin/data"]
+FROM alpine:3.20.1
+
+RUN apk add --no-cache \
+	libstdc++=13.2.1_git20240309-r0 \
+	&& adduser --disabled-password saundersp
+
+USER saundersp
+
+WORKDIR /home/saundersp/sorting_algorithms
+
+COPY --from=builder /home/saundersp/sorting_algorithms/bin/data .
+
+ENTRYPOINT ["./data"]