Add `CI_PIPELINE_CREATED_AT` and `CI_JOB_STARTED_AT` variables

app/models/ci/build.rb

@@ -522,6 +522,7 @@ module Ci
           .append(key: 'CI_JOB_ID', value: id.to_s)
           .append(key: 'CI_JOB_URL', value: Gitlab::Routing.url_helpers.project_job_url(project, self))
           .append(key: 'CI_JOB_TOKEN', value: token.to_s, public: false, masked: true)
+          .append(key: 'CI_JOB_STARTED_AT', value: started_at&.iso8601)
           .append(key: 'CI_BUILD_ID', value: id.to_s)
           .append(key: 'CI_BUILD_TOKEN', value: token.to_s, public: false, masked: true)
           .append(key: 'CI_REGISTRY_USER', value: ::Gitlab::Auth::CI_JOB_USER)

app/models/ci/pipeline.rb

@@ -777,6 +777,7 @@ module Ci
       Gitlab::Ci::Variables::Collection.new.tap do |variables|
         variables.append(key: 'CI_PIPELINE_IID', value: iid.to_s)
         variables.append(key: 'CI_PIPELINE_SOURCE', value: source.to_s)
+        variables.append(key: 'CI_PIPELINE_CREATED_AT', value: created_at&.iso8601)
 
         variables.concat(predefined_commit_variables)
 

changelogs/unreleased/22901-add-predefined-variable.yml

+---
+title: Add CI_JOB_STARTED_AT and CI_PIPELINE_CREATED_AT variables
+merge_request: 54989
+author: Vincent Firmin @winkies
+type: added

doc/ci/variables/predefined_variables.md

@@ -61,6 +61,7 @@ There are also [Kubernetes-specific deployment variables](../../user/project/clu
 | `CI_JOB_STATUS`                          | all    | 13.5   | The status of the job as each runner stage is executed. Use with [`after_script`](../yaml/README.md#after_script). Can be `success`, `failed`, or `canceled`. |
 | `CI_JOB_TOKEN`                           | 9.0    | 1.2    | A token to authenticate with [certain API endpoints](../../api/README.md#gitlab-ci-job-token) or download [dependent repositories](../../user/project/new_ci_build_permissions_model.md#dependent-repositories). The token is valid as long as the job is running. |
 | `CI_JOB_URL`                             | 11.1   | 0.5    | The job details URL. |
+| `CI_JOB_STARTED_AT`                      | 13.10  | all    | The UTC datetime when a job started, in [ISO 8601](https://tools.ietf.org/html/rfc3339#appendix-A) format. |
 | `CI_KUBERNETES_ACTIVE`                   | 13.0   | all    | Only available if the pipeline has a Kubernetes cluster available for deployments. `true` when available. |
 | `CI_NODE_INDEX`                          | 11.5   | all    | The index of the job in the job set. Only available if the job uses [`parallel`](../yaml/README.md#parallel). |
 | `CI_NODE_TOTAL`                          | 11.5   | all    | The total number of instances of this job running in parallel. Set to `1` if the job does not use [`parallel`](../yaml/README.md#parallel). |
@@ -72,6 +73,7 @@ There are also [Kubernetes-specific deployment variables](../../user/project/clu
 | `CI_PIPELINE_SOURCE`                     | 10.0   | all    | How the pipeline was triggered. Can be `push`, `web`, `schedule`, `api`, `external`, `chat`, `webide`, `merge_request_event`, `external_pull_request_event`, `parent_pipeline`, [`trigger`, or `pipeline`](../triggers/README.md#authentication-tokens). |
 | `CI_PIPELINE_TRIGGERED`                  | all    | all    | `true` if the job was [triggered](../triggers/README.md). |
 | `CI_PIPELINE_URL`                        | 11.1   | 0.5    | The URL for the pipeline details. |
+| `CI_PIPELINE_CREATED_AT`                 | 13.10  | all    | The UTC datetime when the pipeline was created, in [ISO 8601](https://tools.ietf.org/html/rfc3339#appendix-A) format. |
 | `CI_PROJECT_CONFIG_PATH`                 | 13.8   | all    | (Deprecated) The CI configuration path for the project. [Deprecated](https://gitlab.com/gitlab-org/gitlab/-/issues/321334) in GitLab 13.10. [Removal planned](https://gitlab.com/gitlab-org/gitlab/-/issues/322807) for GitLab 14.0. |
 | `CI_PROJECT_DIR`                         | all    | all    | The full path the repository is cloned to, and where the job runs from. If the GitLab Runner `builds_dir` parameter is set, this variable is set relative to the value of `builds_dir`. For more information, see the [Advanced GitLab Runner configuration](https://docs.gitlab.com/runner/configuration/advanced-configuration.html#the-runners-section). |
 | `CI_PROJECT_ID`                          | all    | all    | The ID of the current project. This ID is unique across all projects on the GitLab instance. |

doc/ci/variables/where_variables_can_be_used.md

@@ -109,6 +109,7 @@ The following variables are known as "persisted":
 - `CI_PIPELINE_ID`
 - `CI_JOB_ID`
 - `CI_JOB_TOKEN`
+- `CI_JOB_STARTED_AT`
 - `CI_BUILD_ID`
 - `CI_BUILD_TOKEN`
 - `CI_REGISTRY_USER`

spec/models/ci/build_spec.rb

@@ -2423,6 +2423,7 @@ RSpec.describe Ci::Build do
           { key: 'CI_JOB_ID', value: build.id.to_s, public: true, masked: false },
           { key: 'CI_JOB_URL', value: project.web_url + "/-/jobs/#{build.id}", public: true, masked: false },
           { key: 'CI_JOB_TOKEN', value: 'my-token', public: false, masked: true },
+          { key: 'CI_JOB_STARTED_AT', value: build.started_at&.iso8601, public: true, masked: false },
           { key: 'CI_BUILD_ID', value: build.id.to_s, public: true, masked: false },
           { key: 'CI_BUILD_TOKEN', value: 'my-token', public: false, masked: true },
           { key: 'CI_REGISTRY_USER', value: 'gitlab-ci-token', public: true, masked: false },
@@ -2472,6 +2473,7 @@ RSpec.describe Ci::Build do
           { key: 'CI_API_V4_URL', value: 'http://localhost/api/v4', public: true, masked: false },
           { key: 'CI_PIPELINE_IID', value: pipeline.iid.to_s, public: true, masked: false },
           { key: 'CI_PIPELINE_SOURCE', value: pipeline.source, public: true, masked: false },
+          { key: 'CI_PIPELINE_CREATED_AT', value: pipeline.created_at.iso8601, public: true, masked: false },
           { key: 'CI_COMMIT_SHA', value: build.sha, public: true, masked: false },
           { key: 'CI_COMMIT_SHORT_SHA', value: build.short_sha, public: true, masked: false },
           { key: 'CI_COMMIT_BEFORE_SHA', value: build.before_sha, public: true, masked: false },

spec/models/ci/pipeline_spec.rb

@@ -807,6 +807,7 @@ RSpec.describe Ci::Pipeline, :mailer, factory_default: :keep do
       expect(keys).to eq %w[
         CI_PIPELINE_IID
         CI_PIPELINE_SOURCE
+        CI_PIPELINE_CREATED_AT
         CI_COMMIT_SHA
         CI_COMMIT_SHORT_SHA
         CI_COMMIT_BEFORE_SHA