72 lines
1.7 KiB
Nix
72 lines
1.7 KiB
Nix
{pkgs, config, ...}:
|
|
|
|
let
|
|
inherit (pkgs.lib) mkOption mkIf singleton concatStrings;
|
|
inherit (pkgs) postgresql gzip;
|
|
|
|
location = config.services.postgresqlBackup.location ;
|
|
|
|
postgresqlBackupCron = db : ''
|
|
${config.services.postgresqlBackup.period} root ${postgresql}/bin/pg_dump ${db} | ${gzip}/bin/gzip -c > ${location}/${db}.gz
|
|
'';
|
|
|
|
in
|
|
|
|
{
|
|
|
|
###### interface
|
|
|
|
options = {
|
|
|
|
services.postgresqlBackup = {
|
|
|
|
enable = mkOption {
|
|
default = false;
|
|
description = ''
|
|
Whether to enable PostgreSQL dumps.
|
|
'';
|
|
};
|
|
|
|
period = mkOption {
|
|
default = "15 01 * * *";
|
|
description = ''
|
|
This option defines (in the format used by cron) when the
|
|
databases should be dumped.
|
|
The default is to update at 01:15 (at night) every day.
|
|
'';
|
|
};
|
|
|
|
databases = mkOption {
|
|
default = [];
|
|
description = ''
|
|
List of database names to dump.
|
|
'';
|
|
};
|
|
|
|
location = mkOption {
|
|
default = "/var/backup/postgresql";
|
|
description = ''
|
|
Location to put the gzipped PostgreSQL database dumps.
|
|
'';
|
|
};
|
|
};
|
|
|
|
};
|
|
|
|
###### implementation
|
|
config = mkIf config.services.postgresqlBackup.enable {
|
|
services.cron = {
|
|
systemCronJobs =
|
|
pkgs.lib.optional
|
|
config.services.postgresqlBackup.enable
|
|
(concatStrings (map postgresqlBackupCron config.services.postgresqlBackup.databases));
|
|
};
|
|
|
|
system.activationScripts.postgresqlBackup = pkgs.stringsWithDeps.noDepEntry ''
|
|
mkdir -m 0700 -p ${config.services.postgresqlBackup.location}
|
|
chown root ${config.services.postgresqlBackup.location}
|
|
'';
|
|
};
|
|
|
|
}
|