39 lines
1.1 KiB
Nix
39 lines
1.1 KiB
Nix
{
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config,
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pkgs,
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...
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}: {
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environment.systemPackages = let
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# script from:
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# https://nixos.org/manual/nixos/stable/index.html#module-postgresql
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# 1) bump toVersion; rebuild
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# 2) run this script
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# 3) bump postgres; rebuild
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# 4) run analyze_new_cluster.sh; delete_old_cluster.sh from the database dir.
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toVersion = "14"; # Bump this when there is a new version.
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new_package = "postgresql_${toVersion}";
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in [
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(pkgs.writeScriptBin "upgrade-pg-cluster" ''
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set -eux
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systemctl stop postgresql
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export NEWDATA="/var/lib/postgresql/${toVersion}"
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export NEWBIN="${pkgs.${new_package}}/bin"
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export OLDDATA="${config.services.postgresql.dataDir}"
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export OLDBIN="${config.services.postgresql.package}/bin"
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install -d -m 0700 -o postgres -g postgres "$NEWDATA"
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cd "$NEWDATA"
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sudo -u postgres $NEWBIN/initdb -D "$NEWDATA"
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sudo -u postgres $NEWBIN/pg_upgrade \
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--old-datadir "$OLDDATA" --new-datadir "$NEWDATA" \
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--old-bindir $OLDBIN --new-bindir $NEWBIN \
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"$@"
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'')
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];
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}
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