Configurable vali storage capacity (#516)

Author: simcod

control-plane/roles/gardener-gardenlet/defaults/main/gardenlet.yaml

@@ -52,6 +52,7 @@ gardener_gardenlet_defaults:
   shoot_respect_sync_period_overwrite: true
   logging_enabled: false
   logging_vali_enabled: false
+  logging_vali_storage: "100Gi"
   vertical_pod_autoscaler_enabled: true
   image_vector_overwrite: []
   component_image_vector_overwrite: []

control-plane/roles/gardener-gardenlet/templates/gardenlet.yaml

@@ -66,6 +66,8 @@ spec:
       enabled: {{ _config.logging_enabled | lower }}
       vali:
         enabled: {{ _config.logging_vali_enabled | lower }}
+        garden:
+          storage: {{ _config.logging_vali_storage }}
       shootNodeLogging:
         shootPurposes:
         - infrastructure