# vim:set ft=dockerfile: FROM alpine:3.11 # 70 is the standard uid/gid for "postgres" in Alpine # https://git.alpinelinux.org/aports/tree/main/postgresql/postgresql.pre-install?h=3.11-stable RUN set -eux; \ addgroup -g 70 -S postgres; \ adduser -u 70 -S -D -G postgres -H -h /var/lib/postgresql -s /bin/sh postgres; \ mkdir -p /var/lib/postgresql; \ chown -R postgres:postgres /var/lib/postgresql # 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 10 ENV PG_VERSION 10.13 ENV PG_SHA256 4d701f450cd92ffb123cf6c296e9656abbc2ab7ea6507894ff1e2475ae0754e1 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 \ linux-headers \ 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 \ \ && 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="$gnuArch" \ # "/usr/src/postgresql/src/backend/access/common/tupconvert.c:105: undefined reference to `libintl_gettext'" # --enable-nls \ --enable-integer-datetimes \ --enable-thread-safety \ --enable-tap-tests \ # skip debugging info -- we want tiny size instead # --enable-debug \ --disable-rpath \ --with-uuid=e2fs \ --with-gnu-ld \ --with-pgport=5432 \ --with-system-tzdata=/usr/share/zoneinfo \ --prefix=/usr/local \ --with-includes=/usr/local/include \ --with-libraries=/usr/local/lib \ \ # these make our image abnormally large (at least 100MB larger), which seems uncouth for an "Alpine" (ie, "small") variant :) # --with-krb5 \ # --with-gssapi \ # --with-ldap \ # --with-tcl \ # --with-perl \ # --with-python \ # --with-pam \ --with-openssl \ --with-libxml \ --with-libxslt \ --with-icu \ && make -j "$(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 \ $runDeps \ bash \ su-exec \ # tzdata is optional, but only adds around 1Mb to image size and is recommended by Django documentation: # https://docs.djangoproject.com/en/1.10/ref/databases/#optimizing-postgresql-s-configuration tzdata \ && apk del .fetch-deps .build-deps \ && cd / \ && rm -rf \ /usr/src/postgresql \ /usr/local/share/doc \ /usr/local/share/man \ && find /usr/local -name '*.a' -delete # make the sample config easier to munge (and "correct by default") RUN sed -ri "s!^#?(listen_addresses)\s*=\s*\S+.*!\1 = '*'!" /usr/local/share/postgresql/postgresql.conf.sample RUN mkdir -p /var/run/postgresql && chown -R postgres:postgres /var/run/postgresql && chmod 2777 /var/run/postgresql ENV PGDATA /var/lib/postgresql/data # this 777 will be replaced by 700 at runtime (allows semi-arbitrary "--user" values) RUN mkdir -p "$PGDATA" && chown -R postgres:postgres "$PGDATA" && chmod 777 "$PGDATA" 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"]