inital version

Dockerfile

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+FROM lalyos/scratch-chmx
+
+ADD release/upx /bin/upx
+RUN ["/bin/chmx", "/bin/upx"]
+
+VOLUME /data
+WORKDIR /data
+
+ENTRYPOINT ["/bin/upx"]

Makefile

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+VERSION=3.91
+
+build:
+	rm -rf release
+	docker build -t upx-bin build
+	docker run --rm -v $(shell pwd)/release:/release upx
+	docker build -t lalyos/upx .
+
+deps:
+	go get github.com/progrium/gh-release
+
+release: build
+	gh-release create lalyos/docker-upx $(VERSION)
+
+.PHONY: build

README.md

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+# Go small or go home
+
+Lets save the interweb, and make all binaries small. This tiny () Docker image
+is a containerized [upx](http://upx.sourceforge.net).
+
+## Usage
+
+
+You can compress your binary file as:
+
+```
+docker run -v $PWD:/release lalyos/upx mybinary
+```
+
+##
+
+
+## tl;dr
+
+- It is statically built with Alpine linux
+- compressed by itdelf (eat your own dogfood)
+- added into a [custom scratch](https://github.com/lalyos/docker-scratch-chmx)
+
+## TODO
+
+If I’m getting too bored (unlikely in the coming weeks) i might create an
+ordinary Alpine package for upx.

build/Dockerfile

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+FROM lalyos/alpine-build:edge
+
+RUN apk add -U zlib-dev xz-dev curl perl
+
+ENV LDFLAGS=-static
+
+ENV UCL_VER 1.03
+RUN curl -L http://www.oberhumer.com/opensource/ucl/download/ucl-${UCL_VER}.tar.gz|tar -xzv \
+    && cd ucl-${UCL_VER} \
+    && ./configure \
+    && make \
+    && make install
+
+ENV LZMA_VER 920
+RUN curl -LO http://www.7-zip.org/a/lzma${LZMA_VER}.tar.bz2 \
+    && bunzip2 lzma${LZMA_VER}.tar.bz2 \
+    && tar -xvf lzma${LZMA_VER}.tar
+ENV UPX_LZMADIR /
+
+VOLUME /release
+
+ENV UPX_UCLDIR=/ucl-${UCL_VER}
+ENV UPX_VER 3.91
+RUN curl -LO http://upx.sourceforge.net/download/upx-${UPX_VER}-src.tar.bz2 \
+    && bunzip2 upx-${UPX_VER}-src.tar.bz2  \
+    && tar -xvf upx-${UPX_VER}-src.tar \
+    && cd upx-${UPX_VER}-src \
+    && sed -i "/addLoad/ s/NULL/(char*)NULL/" src/packer.cpp \
+    && make all
+
+# packs itself
+CMD /upx-${UPX_VER}-src/src/upx.out --best --ultra-brute -o/release/upx /upx-${UPX_VER}-src/src/upx.out
+
+
+