52 lines
1.5 KiB
Nix
52 lines
1.5 KiB
Nix
{
|
|
config,
|
|
lib,
|
|
pkgs,
|
|
namespace,
|
|
...
|
|
}:
|
|
let
|
|
cfg = config.${namespace}.services.postgresql;
|
|
postgresql_cfg = config.services.postgresql;
|
|
in
|
|
{
|
|
options.${namespace}.services.postgresql = {
|
|
upgradeScript = {
|
|
enable = lib.mkEnableOption "postgres upgrade script (see here: https://nixos.org/manual/nixos/stable/#module-services-postgres-upgrading";
|
|
newVersion = lib.mkOption {
|
|
type = lib.types.package;
|
|
description = "Version of postgres to upgrade to";
|
|
};
|
|
currentVersion = lib.mkOption {
|
|
type = lib.types.package;
|
|
description = "Current postgres version";
|
|
default = postgresql_cfg.package;
|
|
};
|
|
};
|
|
};
|
|
|
|
config = lib.mkIf cfg.upgradeScript.enable {
|
|
environment.systemPackages = [
|
|
(pkgs.writeScriptBin "upgrade-pg-cluster" ''
|
|
set -eux
|
|
systemctl stop postgresql
|
|
|
|
export NEWDATA="/var/lib/postgresql/${cfg.upgradeScript.newVersion.psqlSchema}"
|
|
export NEWBIN="${cfg.upgradeScript.newVersion}/bin"
|
|
|
|
export OLDDATA="${postgresql_cfg.dataDir}"
|
|
export OLDBIN="${postgresql_cfg.finalPackage}/bin"
|
|
|
|
install -d -m 0700 -o postgres -g postgres "$NEWDATA"
|
|
cd "$NEWDATA"
|
|
sudo -u postgres "$NEWBIN/initdb" -D "$NEWDATA" ${lib.escapeShellArgs postgresql_cfg.initdbArgs}
|
|
|
|
sudo -u postgres "$NEWBIN/pg_upgrade" \
|
|
--old-datadir "$OLDDATA" --new-datadir "$NEWDATA" \
|
|
--old-bindir "$OLDBIN" --new-bindir "$NEWBIN" \
|
|
"$@"
|
|
'')
|
|
];
|
|
|
|
};
|
|
}
|