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222 lines
9.9 KiB
Docker
222 lines
9.9 KiB
Docker
# vim:set ft=dockerfile:
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FROM debian:%%DEBIAN_TAG%%
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RUN set -ex; \
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if ! command -v gpg > /dev/null; then \
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apt-get update; \
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apt-get install -y --no-install-recommends \
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gnupg \
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dirmngr \
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; \
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rm -rf /var/lib/apt/lists/*; \
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fi
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# explicitly set user/group IDs
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RUN set -eux; \
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groupadd -r postgres --gid=999; \
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# https://salsa.debian.org/postgresql/postgresql-common/blob/997d842ee744687d99a2b2d95c1083a2615c79e8/debian/postgresql-common.postinst#L32-35
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useradd -r -g postgres --uid=999 --home-dir=/var/lib/postgresql --shell=/bin/bash postgres; \
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# also create the postgres user's home directory with appropriate permissions
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# see https://github.com/docker-library/postgres/issues/274
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mkdir -p /var/lib/postgresql; \
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chown -R postgres:postgres /var/lib/postgresql
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# grab gosu for easy step-down from root
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# https://github.com/tianon/gosu/releases
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ENV GOSU_VERSION 1.12
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RUN set -eux; \
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savedAptMark="$(apt-mark showmanual)"; \
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apt-get update; \
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apt-get install -y --no-install-recommends ca-certificates wget; \
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rm -rf /var/lib/apt/lists/*; \
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dpkgArch="$(dpkg --print-architecture | awk -F- '{ print $NF }')"; \
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wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch"; \
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wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch.asc"; \
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export GNUPGHOME="$(mktemp -d)"; \
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gpg --batch --keyserver hkps://keys.openpgp.org --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
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gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
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gpgconf --kill all; \
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rm -rf "$GNUPGHOME" /usr/local/bin/gosu.asc; \
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apt-mark auto '.*' > /dev/null; \
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[ -z "$savedAptMark" ] || apt-mark manual $savedAptMark > /dev/null; \
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apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
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chmod +x /usr/local/bin/gosu; \
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gosu --version; \
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gosu nobody true
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# make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
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RUN set -eux; \
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if [ -f /etc/dpkg/dpkg.cfg.d/docker ]; then \
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# if this file exists, we're likely in "debian:xxx-slim", and locales are thus being excluded so we need to remove that exclusion (since we need locales)
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grep -q '/usr/share/locale' /etc/dpkg/dpkg.cfg.d/docker; \
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sed -ri '/\/usr\/share\/locale/d' /etc/dpkg/dpkg.cfg.d/docker; \
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! grep -q '/usr/share/locale' /etc/dpkg/dpkg.cfg.d/docker; \
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fi; \
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apt-get update; apt-get install -y --no-install-recommends locales; rm -rf /var/lib/apt/lists/*; \
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localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
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ENV LANG en_US.utf8
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RUN set -eux; \
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apt-get update; \
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apt-get install -y --no-install-recommends \
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# install "nss_wrapper" in case we need to fake "/etc/passwd" and "/etc/group" (especially for OpenShift)
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# https://github.com/docker-library/postgres/issues/359
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# https://cwrap.org/nss_wrapper.html
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libnss-wrapper \
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# install "xz-utils" for .sql.xz docker-entrypoint-initdb.d files
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xz-utils \
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; \
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rm -rf /var/lib/apt/lists/*
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RUN mkdir /docker-entrypoint-initdb.d
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RUN set -ex; \
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# pub 4096R/ACCC4CF8 2011-10-13 [expires: 2019-07-02]
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# Key fingerprint = B97B 0AFC AA1A 47F0 44F2 44A0 7FCC 7D46 ACCC 4CF8
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# uid PostgreSQL Debian Repository
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key='B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8'; \
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export GNUPGHOME="$(mktemp -d)"; \
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gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
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gpg --batch --export "$key" > /etc/apt/trusted.gpg.d/postgres.gpg; \
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command -v gpgconf > /dev/null && gpgconf --kill all; \
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rm -rf "$GNUPGHOME"; \
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apt-key list
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ENV PG_MAJOR %%PG_MAJOR%%
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ENV PG_VERSION %%PG_VERSION%%
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RUN set -ex; \
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\
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# see note below about "*.pyc" files
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export PYTHONDONTWRITEBYTECODE=1; \
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\
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dpkgArch="$(dpkg --print-architecture)"; \
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case "$dpkgArch" in \
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%%ARCH_LIST%%) \
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# arches officialy built by upstream
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echo "deb http://apt.postgresql.org/pub/repos/apt/ %%DEBIAN_SUITE%%-pgdg main $PG_MAJOR" > /etc/apt/sources.list.d/pgdg.list; \
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apt-get update; \
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;; \
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*) \
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# we're on an architecture upstream doesn't officially build for
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# let's build binaries from their published source packages
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echo "deb-src http://apt.postgresql.org/pub/repos/apt/ %%DEBIAN_SUITE%%-pgdg main $PG_MAJOR" > /etc/apt/sources.list.d/pgdg.list; \
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\
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case "$PG_MAJOR" in \
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9.* | 10 ) ;; \
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*) \
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# https://github.com/docker-library/postgres/issues/484 (clang-6.0 required, only available in stretch-backports)
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# TODO remove this once we hit buster+
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echo 'deb http://deb.debian.org/debian %%DEBIAN_SUITE%%-backports main' >> /etc/apt/sources.list.d/pgdg.list; \
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;; \
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esac; \
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\
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tempDir="$(mktemp -d)"; \
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cd "$tempDir"; \
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\
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savedAptMark="$(apt-mark showmanual)"; \
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\
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# build .deb files from upstream's source packages (which are verified by apt-get)
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apt-get update; \
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# we need DEBIAN_FRONTEND on postgresql-13 for slapd ("Please enter the password for the admin entry in your LDAP directory."); see https://bugs.debian.org/929417
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DEBIAN_FRONTEND=noninteractive \
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apt-get build-dep -y \
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postgresql-common pgdg-keyring \
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"postgresql-$PG_MAJOR=$PG_VERSION" \
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; \
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DEB_BUILD_OPTIONS="nocheck parallel=$(nproc)" \
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apt-get source --compile \
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postgresql-common pgdg-keyring \
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"postgresql-$PG_MAJOR=$PG_VERSION" \
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; \
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# we don't remove APT lists here because they get re-downloaded and removed later
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\
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# reset apt-mark's "manual" list so that "purge --auto-remove" will remove all build dependencies
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# (which is done after we install the built packages so we don't have to redownload any overlapping dependencies)
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apt-mark showmanual | xargs apt-mark auto > /dev/null; \
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apt-mark manual $savedAptMark; \
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\
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# create a temporary local APT repo to install from (so that dependency resolution can be handled by APT, as it should be)
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ls -lAFh; \
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dpkg-scanpackages . > Packages; \
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grep '^Package: ' Packages; \
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echo "deb [ trusted=yes ] file://$tempDir ./" > /etc/apt/sources.list.d/temp.list; \
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# work around the following APT issue by using "Acquire::GzipIndexes=false" (overriding "/etc/apt/apt.conf.d/docker-gzip-indexes")
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# Could not open file /var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages - open (13: Permission denied)
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# ...
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# E: Failed to fetch store:/var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages Could not open file /var/lib/apt/lists/partial/_tmp_tmp.ODWljpQfkE_._Packages - open (13: Permission denied)
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apt-get -o Acquire::GzipIndexes=false update; \
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;; \
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esac; \
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\
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apt-get install -y --no-install-recommends postgresql-common; \
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sed -ri 's/#(create_main_cluster) .*$/\1 = false/' /etc/postgresql-common/createcluster.conf; \
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apt-get install -y --no-install-recommends \
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"postgresql-$PG_MAJOR=$PG_VERSION" \
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"postgresql-contrib-$PG_MAJOR=$PG_VERSION" \
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; \
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\
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rm -rf /var/lib/apt/lists/*; \
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\
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if [ -n "$tempDir" ]; then \
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# if we have leftovers from building, let's purge them (including extra, unnecessary build deps)
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apt-get purge -y --auto-remove; \
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rm -rf "$tempDir" /etc/apt/sources.list.d/temp.list; \
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fi; \
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\
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# some of the steps above generate a lot of "*.pyc" files (and setting "PYTHONDONTWRITEBYTECODE" beforehand doesn't propagate properly for some reason), so we clean them up manually (as long as they aren't owned by a package)
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find /usr -name '*.pyc' -type f -exec bash -c 'for pyc; do dpkg -S "$pyc" &> /dev/null || rm -vf "$pyc"; done' -- '{}' +
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# make the sample config easier to munge (and "correct by default")
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RUN set -eux; \
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dpkg-divert --add --rename --divert "/usr/share/postgresql/postgresql.conf.sample.dpkg" "/usr/share/postgresql/$PG_MAJOR/postgresql.conf.sample"; \
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cp -v /usr/share/postgresql/postgresql.conf.sample.dpkg /usr/share/postgresql/postgresql.conf.sample; \
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ln -sv ../postgresql.conf.sample "/usr/share/postgresql/$PG_MAJOR/"; \
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sed -ri "s!^#?(listen_addresses)\s*=\s*\S+.*!\1 = '*'!" /usr/share/postgresql/postgresql.conf.sample; \
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grep -F "listen_addresses = '*'" /usr/share/postgresql/postgresql.conf.sample
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RUN mkdir -p /var/run/postgresql && chown -R postgres:postgres /var/run/postgresql && chmod 2777 /var/run/postgresql
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ENV PATH $PATH:/usr/lib/postgresql/$PG_MAJOR/bin
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ENV PGDATA /var/lib/postgresql/data
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# this 777 will be replaced by 700 at runtime (allows semi-arbitrary "--user" values)
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RUN mkdir -p "$PGDATA" && chown -R postgres:postgres "$PGDATA" && chmod 777 "$PGDATA"
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VOLUME /var/lib/postgresql/data
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COPY docker-entrypoint.sh /usr/local/bin/
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RUN ln -s usr/local/bin/docker-entrypoint.sh / # backwards compat
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ENTRYPOINT ["docker-entrypoint.sh"]
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# We set the default STOPSIGNAL to SIGINT, which corresponds to what PostgreSQL
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# calls "Fast Shutdown mode" wherein new connections are disallowed and any
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# in-progress transactions are aborted, allowing PostgreSQL to stop cleanly and
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# flush tables to disk, which is the best compromise available to avoid data
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# corruption.
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#
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# Users who know their applications do not keep open long-lived idle connections
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# may way to use a value of SIGTERM instead, which corresponds to "Smart
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# Shutdown mode" in which any existing sessions are allowed to finish and the
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# server stops when all sessions are terminated.
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#
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# See https://www.postgresql.org/docs/12/server-shutdown.html for more details
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# about available PostgreSQL server shutdown signals.
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#
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# See also https://www.postgresql.org/docs/12/server-start.html for further
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# justification of this as the default value, namely that the example (and
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# shipped) systemd service files use the "Fast Shutdown mode" for service
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# termination.
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#
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STOPSIGNAL SIGINT
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#
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# An additional setting that is recommended for all users regardless of this
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# value is the runtime "--stop-timeout" (or your orchestrator/runtime's
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# equivalent) for controlling how long to wait between sending the defined
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# STOPSIGNAL and sending SIGKILL (which is likely to cause data corruption).
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#
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# The default in most runtimes (such as Docker) is 10 seconds, and the
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# documentation at https://www.postgresql.org/docs/12/server-start.html notes
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# that even 90 seconds may not be long enough in many instances.
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EXPOSE 5432
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CMD ["postgres"]
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