hosts/bicep/services/mysql.nix

@@ -1,7 +1,4 @@
 { pkgs, lib, config, values, ... }:
-let
-  backupDir = "/var/lib/mysql/backups";
-in
 {
   sops.secrets."mysql/password" = {
     owner = "mysql";
@@ -39,6 +36,11 @@ in
     }];
   };
 
+  services.mysqlBackup = {
+    enable = true;
+    location = "/var/lib/mysql/backups";
+  };
+
   networking.firewall.allowedTCPPorts = [ 3306 ];
 
   systemd.services.mysql.serviceConfig = {
@@ -48,51 +50,4 @@ in
       values.ipv6-space
     ];
   };
-
-  # NOTE: instead of having the upstream nixpkgs postgres backup unit trigger
-  #       another unit, it was easier to just make one ourselves
-  systemd.services."backup-mysql" = {
-    description = "Backup MySQL data";
-    requires = [ "mysql.service" ];
-
-    path = [
-      pkgs.coreutils
-      pkgs.rsync
-      pkgs.gzip
-      config.services.mysql.package
-    ];
-
-    script = let
-      rotations = 10;
-      sshTarget1 = "root@isvegg.pvv.ntnu.no:/mnt/backup1/bicep/mysql";
-      sshTarget2 = "root@isvegg.pvv.ntnu.no:/mnt/backup2/bicep/mysql";
-    in ''
-      set -eo pipefail
-
-      mysqldump | gzip -c -9 --rsyncable > "${backupDir}/$(date --iso-8601)-dump.sql.gz"
-
-      while [ $(ls -1 "${backupDir}" | wc -l) -gt ${toString rotations} ]; do
-        rm $(find "${backupDir}" -type f -printf '%T+ %p\n' | sort | head -n 1 | cut -d' ' -f2)
-      done
-
-      rsync -avz --delete "${backupDir}" '${sshTarget1}'
-      rsync -avz --delete "${backupDir}" '${sshTarget2}'
-    '';
-
-    serviceConfig = {
-      Type = "oneshot";
-      User = "mysql";
-      Group = "mysql";
-      UMask = "0077";
-      ReadWritePaths = [ backupDir ];
-    };
-
-    startAt = "*-*-* 02:15:00";
-  };
-
-  systemd.tmpfiles.settings."10-mysql-backup".${backupDir}.d = {
-    user = "mysql";
-    group = "mysql";
-    mode = "700";
-  };
 }

hosts/bicep/services/postgres.nix

@@ -1,7 +1,6 @@
-{ config, pkgs, lib, ... }:
+{ config, pkgs, ... }:
 let
   sslCert = config.security.acme.certs."postgres.pvv.ntnu.no";
-  backupDir = "/var/lib/postgresql/backups";
 in
 {
   services.postgresql = {
@@ -90,50 +89,9 @@ in
   networking.firewall.allowedTCPPorts = [ 5432 ];
   networking.firewall.allowedUDPPorts = [ 5432 ];
 
-  # NOTE: instead of having the upstream nixpkgs postgres backup unit trigger
-  #       another unit, it was easier to just make one ourselves
-  systemd.services."backup-postgresql" = {
-    description = "Backup PostgreSQL data";
-    requires = [ "postgresql.service" ];
-
-    path = [
-      pkgs.coreutils
-      pkgs.rsync
-      pkgs.gzip
-      config.services.postgresql.package
-    ];
-
-    script = let
-      rotations = 10;
-      sshTarget1 = "root@isvegg.pvv.ntnu.no:/mnt/backup1/bicep/postgresql";
-      sshTarget2 = "root@isvegg.pvv.ntnu.no:/mnt/backup2/bicep/postgresql";
-    in ''
-      set -eo pipefail
-
-      pg_dumpall -U postgres | gzip -c -9 --rsyncable > "${backupDir}/$(date --iso-8601)-dump.sql.gz"
-
-      while [ $(ls -1 "${backupDir}" | wc -l) -gt ${toString rotations} ]; do
-        rm $(find "${backupDir}" -type f -printf '%T+ %p\n' | sort | head -n 1 | cut -d' ' -f2)
-      done
-
-      rsync -avz --delete "${backupDir}" '${sshTarget1}'
-      rsync -avz --delete "${backupDir}" '${sshTarget2}'
-    '';
-
-    serviceConfig = {
-      Type = "oneshot";
-      User = "postgres";
-      Group = "postgres";
-      UMask = "0077";
-      ReadWritePaths = [ backupDir ];
-    };
-
-    startAt = "*-*-* 01:15:00";
-  };
-
-  systemd.tmpfiles.settings."10-postgresql-backup".${backupDir}.d = {
-    user = "postgres";
-    group = "postgres";
-    mode = "700";
+  services.postgresqlBackup = {
+    enable = true;
+    location = "/var/lib/postgres/backups";
+    backupAll = true;
   };
 }