mirror of
https://gitlab.archlinux.org/archlinux/infrastructure.git
synced 2026-11-07 20:38:46 +01:00
Jan Alexander Steffens (heftig)
4453a38725
PostgreSQL 18 enables checksums by default. For a successful pg_upgrade we need to enable them on the old cluster, as well.
73 lines
2.4 KiB
Bash
Executable File
73 lines
2.4 KiB
Bash
Executable File
#!/bin/bash
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set -e
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## Set the old version that we want to upgrade from.
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TO_VERSION=$(pacman -Q postgresql | grep -Po '(?<=postgresql )[0-9]+\.[0-9]')
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to_major=${TO_VERSION%%.*}
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if (( $to_major != 18 )); then
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# NOTE: When this happens you should check the changelog and add any
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# necessary changes here. Then bump the version check.
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echo "ERROR: major upgrade detected, aborting..."
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exit 1
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fi
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FROM_VERSION="$(cat /var/lib/postgres/data/PG_VERSION)"
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if [[ $FROM_VERSION == $TO_VERSION ]]; then
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echo "ERROR: from and to versions are equal. Have you already updated?! Aborting..."
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exit 1
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fi
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# free space check
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used_space=$(df --local --output=pcent /var/lib/postgres/ | grep -Po '[0-9]{1,3}(?=%)')
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if (( $used_space >= 50 )); then
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echo "ERROR: not enough free space for upgrade with backup, aborting..."
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exit 2
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fi
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if [[ -d /var/lib/postgres/data-$FROM_VERSION ]]; then
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echo "ERROR: backup data-$FROM_VERSION directory already exists, aborting..."
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exit 3
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fi
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pacman -S --needed "postgresql-old-upgrade>=$FROM_VERSION"
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# mask postgresql.service to make sure that other services with
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# Wants=postgresql.service and Restart=on-failure will not start
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# it again during the upgrade
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systemctl mask postgresql.service
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systemctl daemon-reload
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systemctl stop postgresql.service
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# rename the old cluster and create a new empty 'data' directory for initdb
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mv /var/lib/postgres/{data,data-$FROM_VERSION}
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mkdir /var/lib/postgres/data
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chown postgres: /var/lib/postgres/data
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chattr -f +C /var/lib/postgres/data || :
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# initialize the new cluster
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su - postgres -c 'initdb --locale C.UTF-8 -E UTF8 -D /var/lib/postgres/data'
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# copy existing configuration and SSL certs from the old cluster
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for f in pg_hba.conf postgresql.conf {fullchain,chain,privkey}.pem; do
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if [[ -e /var/lib/postgres/data-$FROM_VERSION/$f ]]; then
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cp -av /var/lib/postgres/{data-$FROM_VERSION,data}/$f
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fi
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done
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# enable checksums on the old cluster; fails when already enabled
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su - postgres -c "/opt/pgsql-$FROM_VERSION/bin/pg_checksums -e -P \
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-D /var/lib/postgres/data-$FROM_VERSION" || :
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# running pg_upgrade from /tmp so it can create pg_upgrade_internal.log
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su - postgres -c "cd /tmp && \
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pg_upgrade -b /opt/pgsql-$FROM_VERSION/bin/ -B /usr/bin/ \
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-d /var/lib/postgres/data-$FROM_VERSION -D /var/lib/postgres/data"
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# unmask and start postgresql.service
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systemctl unmask postgresql.service
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systemctl daemon-reload
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systemctl start postgresql.service
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su - postgres -c 'vacuumdb --all --analyze-in-stages'
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