From c54cf5a4565b9985bf20c9abfcb46f2307942aa6 Mon Sep 17 00:00:00 2001
From: Daniel Carrillo <daniel.carrillo@gmail.com>
Date: Sat, 29 Apr 2023 18:18:31 +0200
Subject: [PATCH] Add upx compression to Dockerfile

---
 Dockerfile | 3 ++-
 README.md  | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 403016b..fe76573 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,8 @@ WORKDIR /app
 
 COPY . .
 
-RUN apk add make git && make build VERSION=$VERSION
+RUN apk add make git upx && make build VERSION=$VERSION \
+    && upx --best --lzma whatismyip
 
 # Build final image
 FROM scratch
diff --git a/README.md b/README.md
index 539673b..c8cb1c3 100644
--- a/README.md
+++ b/README.md
@@ -138,7 +138,7 @@ Download the latest version from https://github.com/dcarrillo/whatismyip/release
 
 ## Docker
 
-An ultra-light (~12MB) image is available at [docker hub](https://hub.docker.com/r/dcarrillo/whatismyip).
+An ultra-light (~4MB) image is available on [docker hub](https://hub.docker.com/r/dcarrillo/whatismyip). Since version `2.1.2`, the binary is compressed using [upx](https://github.com/upx/upx).
 
 ### Run a container locally using test databases