Add and run script for upgrading PostgreSQL of netbox host

The script is a modified version of the script shown in the PostgreSQL
Upgrading section of the NixOS manual. Our version is for upgrading
PostgreSQL 14 to 15.
Basically do steps 1-3 of the section.

Link to the section:
https://nixos.org/manual/nixos/stable/#module-services-postgres-upgrading
This commit is contained in:
June 2023-12-06 01:06:43 +01:00
parent f9fc034556
commit 49f7ed8d60
2 changed files with 34 additions and 0 deletions

View file

@ -6,5 +6,6 @@
./netbox.nix
./networking.nix
./nginx.nix
./postgresql.nix
];
}

View file

@ -0,0 +1,33 @@
{ pkgs, config, ... }:
{
# Modified version of the script for upgrading PostgreSQL from here:
# https://nixos.org/manual/nixos/stable/#module-services-postgres-upgrading
environment.systemPackages = [
(let
newPostgres = pkgs.postgresql_15;
in pkgs.writeScriptBin "upgrade-pg-cluster" ''
set -eux
systemctl stop netbox.service netbox-rq.service
systemctl stop redis-netbox.service
systemctl stop postgresql.service
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 $NEWBIN \
"$@"
'')
];
}