Backport Dockerfile to v0.2.x (#548)

.dockerignore

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+target

Dockerfile

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+FROM phusion/baseimage:0.10.1 as builder
+LABEL maintainer "[email protected]"
+LABEL description="This is the build stage for Polkadot. Here we create the binary."
+
+ARG PROFILE=release
+WORKDIR /polkadot
+
+COPY . /polkadot
+
+RUN apt-get update && \
+	apt-get upgrade -y && \
+	apt-get install -y cmake pkg-config libssl-dev git
+
+RUN curl https://sh.rustup.rs -sSf | sh -s -- -y && \
+	export PATH=$PATH:$HOME/.cargo/bin && \
+	cargo build --$PROFILE
+
+# ===== SECOND STAGE ======
+
+FROM phusion/baseimage:0.10.0
+LABEL maintainer "[email protected]"
+LABEL description="This is the 2nd stage: a very small image where we copy the Polkadot binary."
+ARG PROFILE=release
+COPY --from=builder /polkadot/target/$PROFILE/polkadot /usr/local/bin
+
+RUN mv /usr/share/ca* /tmp && \
+	rm -rf /usr/share/*  && \
+	mv /tmp/ca-certificates /usr/share/ && \
+	rm -rf /usr/lib/python* && \
+	mkdir -p /root/.local/share/Polkadot && \
+	ln -s /root/.local/share/Polkadot /data
+
+RUN	rm -rf /usr/bin /usr/sbin
+
+EXPOSE 30333 9933 9944
+VOLUME ["/data"]
+
+CMD ["/usr/local/bin/polkadot"]