Add CI variable to provide GitLab base URL

app/models/project.rb

@@ -1932,6 +1932,7 @@ class Project < ApplicationRecord
     Gitlab::Ci::Variables::Collection.new
       .append(key: 'CI', value: 'true')
       .append(key: 'GITLAB_CI', value: 'true')
+      .append(key: 'CI_SERVER_URL', value: Gitlab.config.gitlab.url)
       .append(key: 'CI_SERVER_HOST', value: Gitlab.config.gitlab.host)
       .append(key: 'CI_SERVER_NAME', value: 'GitLab')
       .append(key: 'CI_SERVER_VERSION', value: Gitlab::VERSION)

changelogs/unreleased/22327-add-ci-server-url.yml

+---
+title: Add CI variable to provide GitLab base URL
+merge_request: 22327
+author: Aidin Abedi
+type: added

doc/ci/variables/README.md

@@ -290,6 +290,7 @@ export CI_RUNNER_ID="10"
 export CI_RUNNER_DESCRIPTION="my runner"
 export CI_RUNNER_TAGS="docker, linux"
 export CI_SERVER="yes"
+export CI_SERVER_URL="https://example.com"
 export CI_SERVER_HOST="example.com"
 export CI_SERVER_NAME="GitLab"
 export CI_SERVER_REVISION="70606bf"
@@ -673,6 +674,8 @@ Running on runner-8a2f473d-project-1796893-concurrent-0 via runner-8a2f473d-mach
 ++ CI_PROJECT_DIR=/builds/gitlab-examples/ci-debug-trace
 ++ export CI_SERVER=yes
 ++ CI_SERVER=yes
+++ export CI_SERVER_URL=https://example.com:3000
+++ CI_SERVER_URL=https://example.com:3000
 ++ export 'CI_SERVER_HOST=example.com'
 ++ CI_SERVER_HOST='example.com'
 ++ export 'CI_SERVER_NAME=GitLab CI'
@@ -709,6 +712,8 @@ Running on runner-8a2f473d-project-1796893-concurrent-0 via runner-8a2f473d-mach
 ++ CI_JOB_NAME=debug_trace
 ++ export CI_JOB_STAGE=test
 ++ CI_JOB_STAGE=test
+++ export CI_SERVER_URL=https://example.com:3000
+++ CI_SERVER_URL=https://example.com:3000
 ++ export CI_SERVER_HOST=example.com
 ++ CI_SERVER_HOST=example.com
 ++ export CI_SERVER_NAME=GitLab

doc/ci/variables/predefined_variables.md

@@ -112,6 +112,7 @@ future GitLab releases.**
 | `CI_RUNNER_TAGS`                              | 8.10   | 0.5    | The defined runner tags                                                                                                                                                                                                                                                                                                                                    |
 | `CI_RUNNER_VERSION`                           | all    | 10.6   | GitLab Runner version that is executing the current job                                                                                                                                                                                                                                                                                                    |
 | `CI_SERVER`                                   | all    | all    | Mark that job is executed in CI environment                                                                                                                                                                                                                                                                                                                |
+| `CI_SERVER_URL`                               | 12.7   | all    | The base URL of the GitLab instance, including protocol and port (like `https://gitlab.example.com:8080`)                                                                                                                                                                                                                                                           |
 | `CI_SERVER_HOST`                              | 12.1   | all    | Host component of the GitLab instance URL, without protocol and port (like `gitlab.example.com`)                                                                                                                                                                                                                                                           |
 | `CI_SERVER_NAME`                              | all    | all    | The name of CI server that is used to coordinate jobs                                                                                                                                                                                                                                                                                                      |
 | `CI_SERVER_REVISION`                          | all    | all    | GitLab revision that is used to schedule jobs                                                                                                                                                                                                                                                                                                              |

spec/models/ci/build_spec.rb

@@ -2359,6 +2359,7 @@ describe Ci::Build do
           { key: 'CI_BUILD_STAGE', value: 'test', public: true, masked: false },
           { key: 'CI', value: 'true', public: true, masked: false },
           { key: 'GITLAB_CI', value: 'true', public: true, masked: false },
+          { key: 'CI_SERVER_URL', value: Gitlab.config.gitlab.url, public: true, masked: false },
           { key: 'CI_SERVER_HOST', value: Gitlab.config.gitlab.host, public: true, masked: false },
           { key: 'CI_SERVER_NAME', value: 'GitLab', public: true, masked: false },
           { key: 'CI_SERVER_VERSION', value: Gitlab::VERSION, public: true, masked: false },