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6b2d9f0 Jul 22, 2018
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@tianon @yosifkit @kurlzor @lockie
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# vim:set ft=dockerfile:
FROM alpine:%%ALPINE-VERSION%%
# alpine includes "postgres" user/group in base install
# /etc/passwd:22:postgres:x:70:70::/var/lib/postgresql:/bin/sh
# /etc/group:34:postgres:x:70:
# the home directory for the postgres user, however, is not created by default
# see https://github.com/docker-library/postgres/issues/274
RUN set -ex; \
postgresHome="$(getent passwd postgres)"; \
postgresHome="$(echo "$postgresHome" | cut -d: -f6)"; \
[ "$postgresHome" = '/var/lib/postgresql' ]; \
mkdir -p "$postgresHome"; \
chown -R postgres:postgres "$postgresHome"
# su-exec (gosu-compatible) is installed further down
# make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
# alpine doesn't require explicit locale-file generation
ENV LANG en_US.utf8
RUN mkdir /docker-entrypoint-initdb.d
ENV PG_MAJOR %%PG_MAJOR%%
ENV PG_VERSION %%PG_VERSION%%
ENV PG_SHA256 %%PG_SHA256%%
%%OSSP_UUID_ENV_VARS%%
RUN set -ex \
\
&& apk add --no-cache --virtual .fetch-deps \
ca-certificates \
openssl \
tar \
\
&& wget -O postgresql.tar.bz2 "https://ftp.postgresql.org/pub/source/v$PG_VERSION/postgresql-$PG_VERSION.tar.bz2" \
&& echo "$PG_SHA256 *postgresql.tar.bz2" | sha256sum -c - \
&& mkdir -p /usr/src/postgresql \
&& tar \
--extract \
--file postgresql.tar.bz2 \
--directory /usr/src/postgresql \
--strip-components 1 \
&& rm postgresql.tar.bz2 \
\
&& apk add --no-cache --virtual .build-deps \
bison \
coreutils \
dpkg-dev dpkg \
flex \
gcc \
# krb5-dev \
libc-dev \
libedit-dev \
libxml2-dev \
libxslt-dev \
make \
# openldap-dev \
openssl-dev \
# configure: error: prove not found
perl-utils \
# configure: error: Perl module IPC::Run is required to run TAP tests
perl-ipc-run \
# perl-dev \
# python-dev \
# python3-dev \
# tcl-dev \
util-linux-dev \
zlib-dev \
icu-dev \
\
%%INSTALL_OSSP_UUID%%
&& cd /usr/src/postgresql \
# update "DEFAULT_PGSOCKET_DIR" to "/var/run/postgresql" (matching Debian)
# see https://anonscm.debian.org/git/pkg-postgresql/postgresql.git/tree/debian/patches/51-default-sockets-in-var.patch?id=8b539fcb3e093a521c095e70bdfa76887217b89f
&& awk '$1 == "#define" && $2 == "DEFAULT_PGSOCKET_DIR" && $3 == "\"/tmp\"" { $3 = "\"/var/run/postgresql\""; print; next } { print }' src/include/pg_config_manual.h > src/include/pg_config_manual.h.new \
&& grep '/var/run/postgresql' src/include/pg_config_manual.h.new \
&& mv src/include/pg_config_manual.h.new src/include/pg_config_manual.h \
&& gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)" \
# explicitly update autoconf config.guess and config.sub so they support more arches/libcs
&& wget -O config/config.guess 'https://git.savannah.gnu.org/cgit/config.git/plain/config.guess?id=7d3d27baf8107b630586c962c057e22149653deb' \
&& wget -O config/config.sub 'https://git.savannah.gnu.org/cgit/config.git/plain/config.sub?id=7d3d27baf8107b630586c962c057e22149653deb' \
# configure options taken from:
# https://anonscm.debian.org/cgit/pkg-postgresql/postgresql.git/tree/debian/rules?h=9.5
&& ./configure \
--build="$gnuArch" \
# "/usr/src/postgresql/src/backend/access/common/tupconvert.c:105: undefined reference to `libintl_gettext'"
# --enable-nls \
--enable-integer-datetimes \
--enable-thread-safety \
--enable-tap-tests \
# skip debugging info -- we want tiny size instead
# --enable-debug \
--disable-rpath \
%%UUID_CONFIG_FLAG%% \
--with-gnu-ld \
--with-pgport=5432 \
--with-system-tzdata=/usr/share/zoneinfo \
--prefix=/usr/local \
--with-includes=/usr/local/include \
--with-libraries=/usr/local/lib \
\
# these make our image abnormally large (at least 100MB larger), which seems uncouth for an "Alpine" (ie, "small") variant :)
# --with-krb5 \
# --with-gssapi \
# --with-ldap \
# --with-tcl \
# --with-perl \
# --with-python \
# --with-pam \
--with-openssl \
--with-libxml \
--with-libxslt \
--with-icu \
&& make -j "$(nproc)" world \
&& make install-world \
&& make -C contrib install \
\
&& runDeps="$( \
scanelf --needed --nobanner --format '%n#p' --recursive /usr/local \
| tr ',' '\n' \
| sort -u \
| awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
)" \
&& apk add --no-cache --virtual .postgresql-rundeps \
$runDeps \
bash \
su-exec \
# tzdata is optional, but only adds around 1Mb to image size and is recommended by Django documentation:
# https://docs.djangoproject.com/en/1.10/ref/databases/#optimizing-postgresql-s-configuration
tzdata \
&& apk del .fetch-deps .build-deps \
&& cd / \
&& rm -rf \
/usr/src/postgresql \
/usr/local/share/doc \
/usr/local/share/man \
&& find /usr/local -name '*.a' -delete
# make the sample config easier to munge (and "correct by default")
RUN sed -ri "s!^#?(listen_addresses)\s*=\s*\S+.*!\1 = '*'!" /usr/local/share/postgresql/postgresql.conf.sample
RUN mkdir -p /var/run/postgresql && chown -R postgres:postgres /var/run/postgresql && chmod 2777 /var/run/postgresql
ENV PGDATA /var/lib/postgresql/data
RUN mkdir -p "$PGDATA" && chown -R postgres:postgres "$PGDATA" && chmod 777 "$PGDATA" # this 777 will be replaced by 700 at runtime (allows semi-arbitrary "--user" values)
VOLUME /var/lib/postgresql/data
COPY docker-entrypoint.sh /usr/local/bin/
RUN ln -s usr/local/bin/docker-entrypoint.sh / # backwards compat
ENTRYPOINT ["docker-entrypoint.sh"]
EXPOSE 5432
CMD ["postgres"]