add monitoring

config/health/resources/DiskSpace.yml

@@ -0,0 +1,12 @@
+name: Disk Space
+abbreviation: dskspc
+checker: PragmaRX\Health\Checkers\DiskSpace
+notify: true
+column_size: 3
+targets:
+  - default:
+      name: root
+      path: "/"
+      minimum: 1GB
+      message:
+        "Volume %s is getting out of space. It has %s when it should have at least %s."