Accept latest backup alias during recovery

dev/test_recovery.py

@@ -10,6 +10,11 @@ ROOT = Path(__file__).resolve().parents[1]
 
 
 class RecoveryScriptTests(unittest.TestCase):
+    def test_latest_alias_points_to_production_backup(self) -> None:
+        script = (ROOT / "restore.sh").read_text(encoding="utf-8")
+        self.assertIn("if [[ $ARCHIVE == latest ]]", script)
+        self.assertIn("ARCHIVE=/data/docker-backups/athena-latest.tar.gz", script)
+
     def _archive(self, members: list[str]) -> Path:
         tmp = tempfile.NamedTemporaryFile(suffix=".tar.gz", delete=False)
         tmp.close()

restore.sh

@@ -10,6 +10,9 @@ if [[ ${1:-} == --check ]]; then
   shift
 fi
 ARCHIVE=${1:-/data/docker-backups/athena-latest.tar.gz}
+if [[ $ARCHIVE == latest ]]; then
+  ARCHIVE=/data/docker-backups/athena-latest.tar.gz
+fi
 
 die() { printf 'FEHLER: %s\n' "$*" >&2; exit 1; }
 [[ -s $ARCHIVE ]] || die "Backup fehlt: $ARCHIVE"