FROM docker.io/alpine:latest
ARG SOCAT_VERSION

RUN apk add gcc make alpine-sdk openssl-dev openssl-libs-static

RUN wget http://www.dest-unreach.org/socat/download/socat-$SOCAT_VERSION.tar.gz

RUN tar xfzv socat-$SOCAT_VERSION.tar.gz

WORKDIR /socat-$SOCAT_VERSION

RUN env LDFLAGS=-static ./configure --enable-openssl && make -j$(nproc)