Add limitation for start_in keyword

lib/gitlab/ci/config/entry/job.rb

@@ -36,7 +36,7 @@ module Gitlab
               validates :extends, type: String
             end
 
-            validates :start_in, duration: true, if: :delayed?
+            validates :start_in, duration: { limit: '1 day' }, if: :delayed?
             validates :start_in, absence: true, unless: :delayed?
           end
 

lib/gitlab/ci/config/entry/legacy_validation_helpers.rb

@@ -11,6 +11,15 @@ module Gitlab
             false
           end
 
+          def validate_duration_limit(value, limit)
+            return false unless value.is_a?(String)
+
+            ChronicDuration.parse(value).second.from_now <
+              ChronicDuration.parse(limit).second.from_now
+          rescue ChronicDuration::DurationParseError
+            false
+          end
+
           def validate_array_of_strings(values)
             values.is_a?(Array) && values.all? { |value| validate_string(value) }
           end

lib/gitlab/ci/config/entry/validators.rb

@@ -49,6 +49,12 @@ module Gitlab
               unless validate_duration(value)
                 record.errors.add(attribute, 'should be a duration')
               end
+
+              if options[:limit]
+                unless validate_duration_limit(value, options[:limit])
+                  record.errors.add(attribute, 'should not exceed the limit')
+                end
+              end
             end
           end
 

spec/lib/gitlab/ci/config/entry/job_spec.rb

@@ -44,9 +44,7 @@ describe Gitlab::Ci::Config::Entry::Job do
         context 'when start_in is specified' do
           let(:config) { { script: 'echo', when: 'delayed', start_in: '1 day' } }
 
-          it 'returns error about invalid type' do
-            expect(entry).to be_valid
-          end
+          it { expect(entry).to be_valid }
         end
       end
     end
@@ -158,7 +156,7 @@ describe Gitlab::Ci::Config::Entry::Job do
           end
         end
 
-        context 'when start_in is not formateed ad a duration' do
+        context 'when start_in is not formatted as a duration' do
           let(:config) { { when: 'delayed', start_in: 'test' } }
 
           it 'returns error about invalid type' do
@@ -166,6 +164,15 @@ describe Gitlab::Ci::Config::Entry::Job do
             expect(entry.errors).to include 'job start in should be a duration'
           end
         end
+
+        context 'when start_in is longer than one day' do
+          let(:config) { { when: 'delayed', start_in: '2 days' } }
+
+          it 'returns error about exceeding the limit' do
+            expect(entry).not_to be_valid
+            expect(entry.errors).to include 'job start in should not exceed the limit'
+          end
+        end
       end
 
       context 'when start_in specified without delayed specification' do