Use project name and id in review app url instead of project path slug

changelogs/unreleased/fix-review-app-env-url.yml

@@ -0,0 +1,5 @@
+---
+title: Fixes long review app subdomains
+merge_request: 25990
+author: walkafwalka
+type: fixed

doc/topics/autodevops/index.md

@@ -442,10 +442,10 @@ process. Auto Review Apps create a Review App for each branch.
 Auto Review Apps will deploy your app to your Kubernetes cluster only. When no cluster
 is available, no deployment will occur.
 
-The Review App will have a unique URL based on the project name, the branch
+The Review App will have a unique URL based on the project ID, the branch or tag
 name, and a unique number, combined with the Auto DevOps base domain. For
-example, `user-project-branch-1234.example.com`. A link to the Review App shows
-up in the merge request widget for easy discovery. When the branch is deleted,
+example, `13083-review-project-branch-123456.example.com`. A link to the Review App shows
+up in the merge request widget for easy discovery. When the branch or tag is deleted,
 for example after the merge request is merged, the Review App will automatically
 be deleted.
 

lib/gitlab/ci/templates/Auto-DevOps.gitlab-ci.yml

@@ -262,7 +262,7 @@ review:
     - persist_environment_url
   environment:
     name: review/$CI_COMMIT_REF_NAME
-    url: http://$CI_PROJECT_PATH_SLUG-$CI_ENVIRONMENT_SLUG.$KUBE_INGRESS_BASE_DOMAIN
+    url: http://$CI_PROJECT_ID-$CI_ENVIRONMENT_SLUG.$KUBE_INGRESS_BASE_DOMAIN
     on_stop: stop_review
   artifacts:
     paths: [environment_url.txt]