docker: use alpine to slim down images
-FROM phusion/baseimage:0.10.1 as builder
-LABEL maintainer "chevdor@gmail.com"
+FROM frolvlad/alpine-glibc AS builder
+LABEL maintainer="chevdor@gmail.com"
LABEL description="This is the build stage for Substrate. Here we create the binary."
+RUN apk add build-base \
+ cmake \
+ linux-headers \
+ openssl-dev && \
+ apk add --repository http://nl.alpinelinux.org/alpine/edge/community cargo
+
ARG PROFILE=release
WORKDIR /substrate
-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
-
COPY . /substrate
-RUN export PATH=$PATH:$HOME/.cargo/bin && cargo build --$PROFILE
+RUN cargo build --$PROFILE
# ===== SECOND STAGE ======
-FROM phusion/baseimage:0.10.0
-LABEL maintainer "chevdor@gmail.com"
+FROM alpine:3.8
+LABEL maintainer="chevdor@gmail.com"
LABEL description="This is the 2nd stage: a very small image where we copy the Substrate binary."
ARG PROFILE=release
COPY --from=builder /substrate/target/$PROFILE/substrate /usr/local/bin
-RUN mv /usr/share/ca* /tmp && \
- rm -rf /usr/share/* && \
- mv /tmp/ca-certificates /usr/share/ && \
- rm -rf /usr/lib/python* && \
+RUN apk add --no-cache ca-certificates \
+ libstdc++ \
+ openssl
+
+RUN rm -rf /usr/lib/python* && \
mkdir -p /root/.local/share/Substrate && \
ln -s /root/.local/share/Substrate /data
-RUN rm -rf /usr/bin /usr/sbin
-
EXPOSE 30333 9933 9944
VOLUME ["/data"]
