X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/a0398ebd1c50b1be2433c109af6bb0d263c54ea5..01ca27ba0a1ef84c53e223004249505435a788b6:/services/api/lib/config_loader.rb

diff --git a/services/api/lib/config_loader.rb b/services/api/lib/config_loader.rb
index f421fb5b2a..1d897b39bf 100644
--- a/services/api/lib/config_loader.rb
+++ b/services/api/lib/config_loader.rb
@@ -2,6 +2,16 @@
 #
 # SPDX-License-Identifier: AGPL-3.0
 
+# When loading YAML, deserialize :foo as ":foo", rather than raising
+# "Psych::DisallowedClass: Tried to load unspecified class: Symbol"
+class Psych::ScalarScanner
+  alias :orig_tokenize :tokenize
+  def tokenize string
+    return string if string =~ /^:[a-zA-Z]/
+    orig_tokenize(string)
+  end
+end
+
 module Psych
   module Visitors
     class YAMLTree < Psych::Visitors::Visitor
@@ -226,7 +236,7 @@ class ConfigLoader
       if erb
         yaml = ERB.new(yaml).result(binding)
       end
-      YAML.load(yaml, deserialize_symbols: false)
+      YAML.safe_load(yaml)
     else
       {}
     end