1 files changed, 19 insertions, 2 deletions
diff --git a/lib/gitlab/regex.rb b/lib/gitlab/regex.rb
index a06cf6a989c..9e0b0e5ea98 100644
--- a/lib/gitlab/regex.rb
+++ b/lib/gitlab/regex.rb
@@ -61,7 +61,7 @@ module Gitlab
     end
 
     def file_name_regex
-      @file_name_regex ||= /\A[a-zA-Z0-9_\-\.\@]*\z/.freeze
+      @file_name_regex ||= /\A[[[:alnum:]]_\-\.\@]*\z/.freeze
     end
 
     def file_name_regex_message
@@ -69,7 +69,7 @@ module Gitlab
     end
 
     def file_path_regex
-      @file_path_regex ||= /\A[a-zA-Z0-9_\-\.\/\@]*\z/.freeze
+      @file_path_regex ||= /\A[[[:alnum:]]_\-\.\/\@]*\z/.freeze
     end
 
     def file_path_regex_message
@@ -123,5 +123,22 @@ module Gitlab
     def environment_name_regex_message
       "can contain only letters, digits, '-', '_', '/', '$', '{', '}', '.' and spaces"
     end
+
+    def kubernetes_namespace_regex
+      /\A[a-z0-9]([-a-z0-9]*[a-z0-9])?\z/
+    end
+
+    def kubernetes_namespace_regex_message
+      "can contain only letters, digits or '-', and cannot start or end with '-'"
+    end
+
+    def environment_slug_regex
+      @environment_slug_regex ||= /\A[a-z]([a-z0-9-]*[a-z0-9])?\z/.freeze
+    end
+
+    def environment_slug_regex_message
+      "can contain only lowercase letters, digits, and '-'. " \
+      "Must start with a letter, and cannot end with '-'"
+    end
   end
 end