From 84c49319a691ea943f9df0aa70b231753ef2360e Mon Sep 17 00:00:00 2001
From: James Eversole <james@eversole.co>
Date: Thu, 29 Dec 2022 17:57:34 -0600
Subject: [PATCH] Add UPX executable compression to Docker build in order to
 reduce binary and docker image sizes significantly

---
 examples/Dockerfile | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/examples/Dockerfile b/examples/Dockerfile
index 8288eb0..b07dd27 100644
--- a/examples/Dockerfile
+++ b/examples/Dockerfile
@@ -1,10 +1,18 @@
-FROM alpine:3.17.0
+FROM alpine:3.17.0 as builder
+
+RUN apk add --no-cache upx
+ADD ./bin/Purr-musl /app/Purr-musl
+
+RUN upx /app/Purr-musl -o /app/Purr-musl-upx
+
+FROM scratch
 
 WORKDIR /app
 ADD ./views /app/views
 ADD ./src   /app/src
-ADD ./bin/Purr-musl /app/Purr-musl
+
+COPY --from=builder /app/Purr-musl-upx /app/Purr
 
 EXPOSE 3000
 
-ENTRYPOINT ["/app/Purr-musl"]
+ENTRYPOINT ["/app/Purr"]