Dockerfile.golang

# Cloud9 server for glang dev
# A lot inspired by https://hub.docker.com/_/golang/ (near similar instruction but based on cloud9, GOPATH /workspace)

FROM dockerimages/cloud9
MAINTAINER Frank Lemanschik <frank@dspeed.eu>
LABEL maintainer="Frank Lemanschik <frank@dspeed.eu>"
# gcc for cgo
RUN apt-get update && apt-get install -y --no-install-recommends \
		g++ \
		gcc \
		libc6-dev \
		make \
	&& rm -rf /var/lib/apt/lists/*

ENV GOLANG_VERSION 1.11.5
ENV GOLANG_DOWNLOAD_URL https://golang.org/dl/go$GOLANG_VERSION.linux-amd64.tar.gz
ENV GOLANG_DOWNLOAD_SHA256 2871270d8ff0c8c69f161aaae42f9f28739855ff5c5204752a8d92a1c9f63993

ENV GOPATH /workspace
ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH

RUN curl -fsSL "$GOLANG_DOWNLOAD_URL" -o golang.tar.gz \
	&& echo "$GOLANG_DOWNLOAD_SHA256  golang.tar.gz" | sha256sum -c - \
	&& tar -C /usr/local -xzf golang.tar.gz \
	&& echo 'export PATH=$GOPATH/bin:/usr/local/go/bin:$PATH' >> /root/.bashrc \
	&& rm golang.tar.gz