Dockerfile.erb

FROM debian:stretch-slim

RUN groupadd -r bitcoin && useradd -r -m -g bitcoin bitcoin

RUN set -ex \
	&& apt-get update \
	&& apt-get install -qq --no-install-recommends ca-certificates dirmngr gosu gpg wget \
	&& rm -rf /var/lib/apt/lists/*

ENV BITCOIN_VERSION <%= version %>
ENV BITCOIN_URL <%= url %>
ENV BITCOIN_SHA256 <%= sha256 %>
<% if asc_url -%>
ENV BITCOIN_ASC_URL <%= asc_url %>
ENV BITCOIN_PGP_KEY <%= key %>
<% end -%>

# install bitcoin binaries
RUN set -ex \
	&& cd /tmp \
	&& wget -qO bitcoin.tar.gz "$BITCOIN_URL" \
	&& echo "$BITCOIN_SHA256 bitcoin.tar.gz" | sha256sum -c - \
<% if asc_url -%>
	&& gpg --batch --keyserver keyserver.ubuntu.com --recv-keys "$BITCOIN_PGP_KEY" \
	&& wget -qO bitcoin.asc "$BITCOIN_ASC_URL" \
	&& gpg --verify bitcoin.asc \
<% end -%>
	&& tar -xzvf bitcoin.tar.gz -C /usr/local --strip-components=1 --exclude=*-qt \
	&& rm -rf /tmp/*

# create data directory
ENV BITCOIN_DATA /data
RUN mkdir "$BITCOIN_DATA" \
	&& chown -R bitcoin:bitcoin "$BITCOIN_DATA" \
	&& ln -sfn "$BITCOIN_DATA" /home/bitcoin/.bitcoin \
	&& chown -h bitcoin:bitcoin /home/bitcoin/.bitcoin
VOLUME /data

COPY docker-entrypoint.sh /entrypoint.sh
ENTRYPOINT ["/entrypoint.sh"]

EXPOSE 8332 8333 18332 18333
CMD ["bitcoind"]