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🔨 pg upgrade script

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This commit is contained in:
James Walker
2023-12-11 16:59:00 -05:00
parent a38118b191
commit 94d559c4f4
2 changed files with 32 additions and 27 deletions
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41
modules/postgresql/default.nix
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@ -12,28 +12,33 @@
# Postgres upgrades: https://nixos.org/manual/nixos/stable/index.html#module-services-postgres-upgrading
environment.systemPackages = [
(pkgs.writeScriptBin "upgrade-pg-cluster" ''
set -eux
# XXX it's perhaps advisable to stop all services that depend on postgresql
systemctl stop postgresql
(
let
# XXX specify the postgresql package you'd like to upgrade to.
# Do not forget to list the extensions you need.
newPostgres = pkgs.postgresql_15;
in
pkgs.writeScriptBin "upgrade-pg-cluster" ''
set -eux
# XXX it's perhaps advisable to stop all services that depend on postgresql
systemctl stop postgresql
# XXX replace `<new version>` with the psqlSchema here
export NEWDATA="/var/lib/postgresql/14"
export NEWDATA="/var/lib/postgresql/${newPostgres.psqlSchema}"
# XXX specify the postgresql package you'd like to upgrade to
export NEWBIN="${pkgs.postgresql_14}/bin"
export NEWBIN="${newPostgres}/bin"
export OLDDATA="${config.services.postgresql.dataDir}"
export OLDBIN="${config.services.postgresql.package}/bin"
export OLDDATA="${config.services.postgresql.dataDir}"
export OLDBIN="${config.services.postgresql.package}/bin"
install -d -m 0700 -o postgres -g postgres "$NEWDATA"
cd "$NEWDATA"
sudo -u postgres $NEWBIN/initdb -D "$NEWDATA"
install -d -m 0700 -o postgres -g postgres "$NEWDATA"
cd "$NEWDATA"
sudo -u postgres $NEWBIN/initdb -D "$NEWDATA"
sudo -u postgres $NEWBIN/pg_upgrade \
--old-datadir "$OLDDATA" --new-datadir "$NEWDATA" \
--old-bindir $OLDBIN --new-bindir $NEWBIN \
"$@"
'')
sudo -u postgres $NEWBIN/pg_upgrade \
--old-datadir "$OLDDATA" --new-datadir "$NEWDATA" \
--old-bindir $OLDBIN --new-bindir $NEWBIN \
"$@"
''
)
];
}