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nixpkgs/nixos/tests/mysql-backup.nix
Rodney Lorrimar 56eba66f77 mysqlBackup service: let it work with default settings
* Grants enough privileges to the configured user so that it can run
  mysqldump.

* Adds a nixos test.

* Use systemd timers instead of a cronjob (by @fadenb).

* Creates a new user for backups by default, instead of using mysql
  user.

* Ensures that backup user has write permissions on backup location.

* Write backup to a temporary file before renaming so that a failed
  backup won't overwrite the previous backup, and so that the backup
  location will never contain a partial backup.

Breaking changes:

 * Renamed period to calendar to reflect the change in how to
   configure the backup time.

 * A failed backup will no longer result in cron sending an e-mail --
   users' monitoring systems must be updated.

Resolves #24728
2017-09-27 18:44:49 +02:00

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1.2 KiB
Nix

# Test whether mysqlBackup option works
import ./make-test.nix ({ pkgs, ... } : {
name = "mysql-backup";
meta = with pkgs.stdenv.lib.maintainers; {
maintainers = [ rvl ];
};
nodes = {
master = { config, pkgs, ... }: {
services.mysql = {
enable = true;
initialDatabases = [ { name = "testdb"; schema = ./testdb.sql; } ];
package = pkgs.mysql;
};
services.mysqlBackup = {
enable = true;
databases = [ "doesnotexist" "testdb" ];
};
};
};
testScript =
'' startAll;
# Need to have mysql started so that it can be populated with data.
$master->waitForUnit("mysql.service");
# Wait for testdb to be populated.
$master->sleep(10);
# Do a backup and wait for it to finish.
$master->startJob("mysql-backup.service");
$master->waitForJob("mysql-backup.service");
# Check that data appears in backup
$master->succeed("${pkgs.gzip}/bin/zcat /var/backup/mysql/testdb.gz | grep hello");
# Check that a failed backup is logged
$master->succeed("journalctl -u mysql-backup.service | grep 'fail.*doesnotexist' > /dev/null");
'';
})