Add upgrade path for postgresql

This commit is contained in:
Lillian-Violet 2023-12-21 20:38:49 +01:00
parent 586b242187
commit 8671964043
2 changed files with 37 additions and 0 deletions

View file

@ -21,6 +21,7 @@
./mail-server.nix ./mail-server.nix
./webmail.nix ./webmail.nix
./gotosocial.nix ./gotosocial.nix
../upgrade/postgresql.nix
#./akkoma.nix #./akkoma.nix
]; ];

View file

@ -0,0 +1,36 @@
{
config,
pkgs,
...
}: {
environment.systemPackages = [
(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.withPackages (pp: [
# pp.plv8
]);
in
pkgs.writeScriptBin "upgrade-pg-cluster" ''
set -eux
# XXX it's perhaps advisable to stop all services that depend on postgresql
systemctl stop postgresql
export NEWDATA="/var/lib/postgresql/${newPostgres.psqlSchema}"
export NEWBIN="${newPostgres}/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 $NEWBIN \
"$@"
'')
];
}