Dockerfile

FROM alpine:3.4

# grab gosu for easy step-down from root
ENV GOSU_VERSION 1.7
ENV GOSU_ARCHITECTURE amd64
RUN set -x \
	&& apk add --no-cache --virtual .build-deps wget gnupg ca-certificates \
	&& wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$GOSU_ARCHITECTURE" \
	&& wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$GOSU_ARCHITECTURE.asc" \
	&& export GNUPGHOME="$(mktemp -d)" \
	&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 \
	&& gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu \
	&& rm -r "$GNUPGHOME" /usr/local/bin/gosu.asc \
	&& chmod +x /usr/local/bin/gosu \
	&& gosu nobody true \
  && apk del .build-deps

# make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
ENV LANG en_US.utf8

RUN mkdir /docker-entrypoint-initdb.d

RUN apk add --no-cache bash postgresql postgresql-contrib

# make the sample config easier to munge (and "correct by default")
RUN sed -ri "s!^#?(listen_addresses)\s*=\s*\S+.*!\1 = '*'!" /usr/share/postgresql/postgresql.conf.sample

RUN mkdir -p /var/run/postgresql && chown -R postgres /var/run/postgresql

ENV PGDATA /var/lib/postgresql/data
VOLUME /var/lib/postgresql/data

COPY files/docker-entrypoint.sh /

ENTRYPOINT ["/docker-entrypoint.sh"]

EXPOSE 5432
CMD ["postgres"]