Merge branch 'feature/gb/auto-retry-failed-ci-job' into 'master'

Make it possible to auto retry a failed CI/CD job

Closes #3442

See merge request !12909

2 files changed, 9 insertions, 4 deletions

diff --git a/lib/ci/gitlab_ci_yaml_processor.rb b/lib/ci/gitlab_ci_yaml_processor.rb
index cf3a0336792..3a4911b23b0 100644
--- a/lib/ci/gitlab_ci_yaml_processor.rb
+++ b/lib/ci/gitlab_ci_yaml_processor.rb
@@ -83,7 +83,8 @@ module Ci
           before_script: job[:before_script],
           script: job[:script],
           after_script: job[:after_script],
-          environment: job[:environment]
+          environment: job[:environment],
+          retry: job[:retry]
         }.compact }
     end
 
diff --git a/lib/gitlab/ci/config/entry/job.rb b/lib/gitlab/ci/config/entry/job.rb
index 176301bcca1..32f5c6ab142 100644
--- a/lib/gitlab/ci/config/entry/job.rb
+++ b/lib/gitlab/ci/config/entry/job.rb
@@ -11,7 +11,7 @@ module Gitlab
 
           ALLOWED_KEYS = %i[tags script only except type image services allow_failure
                             type stage when artifacts cache dependencies before_script
-                            after_script variables environment coverage].freeze
+                            after_script variables environment coverage retry].freeze
 
           validations do
             validates :config, allowed_keys: ALLOWED_KEYS
@@ -23,6 +23,9 @@ module Gitlab
             with_options allow_nil: true do
               validates :tags, array_of_strings: true
               validates :allow_failure, boolean: true
+              validates :retry, numericality: { only_integer: true,
+                                                greater_than_or_equal_to: 0,
+                                                less_than_or_equal_to: 2 }
               validates :when,
                 inclusion: { in: %w[on_success on_failure always manual],
                              message: 'should be on_success, on_failure, ' \
@@ -76,9 +79,9 @@ module Gitlab
 
           helpers :before_script, :script, :stage, :type, :after_script,
                   :cache, :image, :services, :only, :except, :variables,
-                  :artifacts, :commands, :environment, :coverage
+                  :artifacts, :commands, :environment, :coverage, :retry
 
-          attributes :script, :tags, :allow_failure, :when, :dependencies
+          attributes :script, :tags, :allow_failure, :when, :dependencies, :retry
 
           def compose!(deps = nil)
             super do
@@ -142,6 +145,7 @@ module Gitlab
               environment: environment_defined? ? environment_value : nil,
               environment_name: environment_defined? ? environment_value[:name] : nil,
               coverage: coverage_defined? ? coverage_value : nil,
+              retry: retry_defined? ? retry_value.to_i : nil,
               artifacts: artifacts_value,
               after_script: after_script_value,
               ignore: ignored? }