31 lines
947 B
Nix
31 lines
947 B
Nix
{ config, pkgs, ... }:
|
|
{
|
|
environment.systemPackages = [
|
|
(pkgs.writeScriptBin "upgrade-pg-cluster" ''
|
|
set -eux
|
|
# TODO it's perhaps advisable to stop all services that depend on postgresql
|
|
systemctl stop postgresql
|
|
|
|
# The schema can be found by running:
|
|
# nix eval --raw nixpkgs#postgresql_15.psqlSchema
|
|
export NEWDATA="/var/lib/postgresql/15"
|
|
|
|
# TODO specify the postgresql package you'd like to upgrade to
|
|
export NEWBIN="${pkgs.postgresql_15}/bin"
|
|
|
|
export OLDDATA="${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"
|
|
|
|
sudo -u postgres $NEWBIN/pg_upgrade \
|
|
--old-datadir "$OLDDATA" --new-datadir "$NEWDATA" \
|
|
--old-bindir $OLDBIN --new-bindir $NEWBIN \
|
|
"$@"
|
|
'')
|
|
];
|
|
}
|
|
|