Avoid 500 when saving long values

ee/app/models/geo_node.rb

@@ -15,7 +15,7 @@ class GeoNode < ApplicationRecord
   has_many :namespaces, through: :geo_node_namespace_links
   has_one :status, class_name: 'GeoNodeStatus'
 
-  validates :name, presence: true, uniqueness: { case_sensitive: false }
+  validates :name, presence: true, uniqueness: { case_sensitive: false }, length: { maximum: 255 }
   validates :url, presence: true, addressable_url: true
   validates :internal_url, addressable_url: true, allow_blank: true, allow_nil: true
 

ee/spec/models/geo_node_spec.rb

@@ -33,6 +33,7 @@ describe GeoNode, :geo, type: :model do
     it { is_expected.to validate_presence_of(:name) }
     it { is_expected.to validate_presence_of(:url) }
     it { is_expected.to validate_uniqueness_of(:name).case_insensitive }
+    it { is_expected.to validate_length_of(:name).is_at_most(255) }
 
     context 'when validating primary node' do
       it 'cannot be disabled' do