Merge remote-tracking branch 'origin/master' into artifacts-when

10 files changed, 214 insertions, 104 deletions

diff --git a/doc/README.md b/doc/README.md
index d1345ab2493..5d89d0c9821 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -28,7 +28,7 @@
 - [Integration](integration/README.md) How to integrate with systems such as JIRA, Redmine, Twitter.
 - [Issue closing](customization/issue_closing.md) Customize how to close an issue from commit messages.
 - [Libravatar](customization/libravatar.md) Use Libravatar for user avatars.
-- [Log system](logs/logs.md) Log system.
+- [Log system](administration/logs.md) Log system.
 - [Environment Variables](administration/environment_variables.md) to configure GitLab.
 - [Operations](operations/README.md) Keeping GitLab up and running
 - [Raketasks](raketasks/README.md) Backups, maintenance, automatic webhook setup and the importing of projects.
diff --git a/doc/administration/container_registry.md b/doc/administration/container_registry.md
index caf9a5bef2c..7870669fa77 100644
--- a/doc/administration/container_registry.md
+++ b/doc/administration/container_registry.md
@@ -62,7 +62,7 @@ registry:
   host: registry.gitlab.example.com
   port: 5005
   api_url: http://localhost:5000/
-  key_path: config/registry.key
+  key: config/registry.key
   path: shared/registry
   issuer: gitlab-issuer
 ```
@@ -75,7 +75,7 @@ where:
 | `host`    | The host URL under which the Registry will run and the users will be able to use. |
 | `port`    | The port under which the external Registry domain will listen on. |
 | `api_url` | The internal API URL under which the Registry is exposed to. It defaults to `http://localhost:5000`. |
-| `key_path`| The private key location that is a pair of Registry's `rootcertbundle`. Read the [token auth configuration documentation][token-config]. |
+| `key`     | The private key location that is a pair of Registry's `rootcertbundle`. Read the [token auth configuration documentation][token-config]. |
 | `path`    | This should be the same directory like specified in Registry's `rootdirectory`. Read the [storage configuration documentation][storage-config]. This path needs to be readable by the GitLab user, the web-server user and the Registry user. Read more in [#container-registry-storage-path](#container-registry-storage-path). |
 | `issuer`  | This should be the same value as configured in Registry's `issuer`. Read the [token auth configuration documentation][token-config]. |
 
diff --git a/doc/administration/logs.md b/doc/administration/logs.md
new file mode 100644
index 00000000000..737b39db16c
--- /dev/null
+++ b/doc/administration/logs.md
@@ -0,0 +1,137 @@
+## Log system
+
+GitLab has an advanced log system where everything is logged so that you
+can analyze your instance using various system log files. In addition to
+system log files, GitLab Enterprise Edition comes with Audit Events.
+Find more about them [in Audit Events
+documentation](http://docs.gitlab.com/ee/administration/audit_events.html)
+
+System log files are typically plain text in a standard log file format.
+This guide talks about how to read and use these system log files.
+
+### production.log
+
+This file lives in `/var/log/gitlab/gitlab-rails/production.log` for
+omnibus package or in `/home/git/gitlab/log/production.log` for
+installations from source.
+
+It contains information about all performed requests. You can see the
+URL and type of request, IP address and what exactly parts of code were
+involved to service this particular request. Also you can see all SQL
+request that have been performed and how much time it took. This task is
+more useful for GitLab contributors and developers. Use part of this log
+file when you are going to report bug. For example:
+
+```
+Started GET "/gitlabhq/yaml_db/tree/master" for 168.111.56.1 at 2015-02-12 19:34:53 +0200
+Processing by Projects::TreeController#show as HTML
+  Parameters: {"project_id"=>"gitlabhq/yaml_db", "id"=>"master"}
+
+  ... [CUT OUT]
+
+  Namespaces"."created_at" DESC, "namespaces"."id" DESC LIMIT 1 [["id", 26]]
+  CACHE (0.0ms) SELECT  "members".* FROM "members"  WHERE "members"."source_type" = 'Project' AND "members"."type" IN ('ProjectMember') AND "members"."source_id" = $1 AND "members"."source_type" = $2 AND "members"."user_id" = 1  ORDER BY "members"."created_at" DESC, "members"."id" DESC LIMIT 1  [["source_id", 18], ["source_type", "Project"]]
+  CACHE (0.0ms) SELECT  "members".* FROM "members"  WHERE "members"."source_type" = 'Project' AND "members".
+  (1.4ms) SELECT COUNT(*) FROM "merge_requests"  WHERE "merge_requests"."target_project_id" = $1 AND ("merge_requests"."state" IN ('opened','reopened')) [["target_project_id", 18]]
+  Rendered layouts/nav/_project.html.haml (28.0ms)
+  Rendered layouts/_collapse_button.html.haml (0.2ms)
+  Rendered layouts/_flash.html.haml (0.1ms)
+  Rendered layouts/_page.html.haml (32.9ms)
+Completed 200 OK in 166ms (Views: 117.4ms | ActiveRecord: 27.2ms)
+```
+
+In this example we can see that server processed an HTTP request with URL
+`/gitlabhq/yaml_db/tree/master` from IP 168.111.56.1 at 2015-02-12
+19:34:53 +0200. Also we can see that request was processed by
+`Projects::TreeController`.
+
+### application.log
+
+This file lives in `/var/log/gitlab/gitlab-rails/application.log` for
+omnibus package or in `/home/git/gitlab/log/application.log` for
+installations from source.
+
+It helps you discover events happening in your instance such as user creation,
+project removing and so on. For example:
+
+```
+October 06, 2014 11:56: User "Administrator" (admin@example.com) was created
+October 06, 2014 11:56: Documentcloud created a new project "Documentcloud / Underscore"
+October 06, 2014 11:56: Gitlab Org created a new project "Gitlab Org / Gitlab Ce"
+October 07, 2014 11:25: User "Claudie Hodkiewicz" (nasir_stehr@olson.co.uk)  was removed
+October 07, 2014 11:25: Project "project133" was removed
+```
+
+### githost.log
+
+This file lives in `/var/log/gitlab/gitlab-rails/githost.log` for
+omnibus package or in `/home/git/gitlab/log/githost.log` for
+installations from source.
+
+GitLab has to interact with Git repositories but in some rare cases
+something can go wrong and in this case you will know what exactly
+happened. This log file contains all failed requests from GitLab to Git
+repositories. In the majority of cases this file will be useful for developers
+only. For example:
+
+```
+December 03, 2014 13:20 -> ERROR -> Command failed [1]: /usr/bin/git --git-dir=/Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/gitlab-satellites/group184/gitlabhq/.git --work-tree=/Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/gitlab-satellites/group184/gitlabhq merge --no-ff -mMerge branch 'feature_conflict' into 'feature' source/feature_conflict
+
+error: failed to push some refs to '/Users/vsizov/gitlab-development-kit/repositories/gitlabhq/gitlab_git.git'
+```
+
+### sidekiq.log
+
+This file lives in `/var/log/gitlab/gitlab-rails/sidekiq.log` for
+omnibus package or in `/home/git/gitlab/log/sidekiq.log` for
+installations from source.
+
+GitLab uses background jobs for processing tasks which can take a long
+time. All information about processing these jobs are written down to
+this file. For example:
+
+```
+2014-06-10T07:55:20Z 2037 TID-tm504 ERROR: /opt/bitnami/apps/discourse/htdocs/vendor/bundle/ruby/1.9.1/gems/redis-3.0.7/lib/redis/client.rb:228:in `read'
+2014-06-10T18:18:26Z 14299 TID-55uqo INFO: Booting Sidekiq 3.0.0 with redis options {:url=>"redis://localhost:6379/0", :namespace=>"sidekiq"}
+```
+
+### gitlab-shell.log
+
+This file lives in `/var/log/gitlab/gitlab-shell/gitlab-shell.log` for
+omnibus package or in `/home/git/gitlab-shell/gitlab-shell.log` for
+installations from source.
+
+GitLab shell is used by Gitlab for executing Git commands and provide
+SSH access to Git repositories. For example:
+
+```
+I, [2015-02-13T06:17:00.671315 #9291]  INFO -- : Adding project root/example.git at </var/opt/gitlab/git-data/repositories/root/dcdcdcdcd.git>.
+I, [2015-02-13T06:17:00.679433 #9291]  INFO -- : Moving existing hooks directory and symlinking global hooks directory for /var/opt/gitlab/git-data/repositories/root/example.git.
+```
+
+### unicorn\_stderr.log
+
+This file lives in `/var/log/gitlab/unicorn/unicorn_stderr.log` for
+omnibus package or in `/home/git/gitlab/log/unicorn_stderr.log` for
+installations from source.
+
+Unicorn is a high-performance forking Web server which is used for
+serving the GitLab application. You can look at this log if, for
+example, your application does not respond. This log contains all
+information about the state of unicorn processes at any given time.
+
+```
+I, [2015-02-13T06:14:46.680381 #9047]  INFO -- : Refreshing Gem list
+I, [2015-02-13T06:14:56.931002 #9047]  INFO -- : listening on addr=127.0.0.1:8080 fd=12
+I, [2015-02-13T06:14:56.931381 #9047]  INFO -- : listening on addr=/var/opt/gitlab/gitlab-rails/sockets/gitlab.socket fd=13
+I, [2015-02-13T06:14:56.936638 #9047]  INFO -- : master process ready
+I, [2015-02-13T06:14:56.946504 #9092]  INFO -- : worker=0 spawned pid=9092
+I, [2015-02-13T06:14:56.946943 #9092]  INFO -- : worker=0 ready
+I, [2015-02-13T06:14:56.947892 #9094]  INFO -- : worker=1 spawned pid=9094
+I, [2015-02-13T06:14:56.948181 #9094]  INFO -- : worker=1 ready
+W, [2015-02-13T07:16:01.312916 #9094]  WARN -- : #<Unicorn::HttpServer:0x0000000208f618>: worker (pid: 9094) exceeds memory limit (320626688 bytes > 247066940 bytes)
+W, [2015-02-13T07:16:01.313000 #9094]  WARN -- : Unicorn::WorkerKiller send SIGQUIT (pid: 9094) alive: 3621 sec (trial 1)
+I, [2015-02-13T07:16:01.530733 #9047]  INFO -- : reaped #<Process::Status: pid 9094 exit 0> worker=1
+I, [2015-02-13T07:16:01.534501 #13379]  INFO -- : worker=1 spawned pid=13379
+I, [2015-02-13T07:16:01.534848 #13379]  INFO -- : worker=1 ready
+```
diff --git a/doc/api/merge_requests.md b/doc/api/merge_requests.md
index 16b892dc3b7..2930f615fc1 100644
--- a/doc/api/merge_requests.md
+++ b/doc/api/merge_requests.md
@@ -572,7 +572,7 @@ GET /projects/:id/merge_requests/:merge_request_id/closes_issues
 curl -H "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/76/merge_requests/1/closes_issues
 ```
 
-Example response:
+Example response when the GitLab issue tracker is used:
 
 ```json
 [
@@ -618,6 +618,17 @@ Example response:
 ]
 ```
 
+Example response when an external issue tracker (e.g. JIRA) is used:
+
+```json
+[
+   {
+       "id" : "PROJECT-123",
+       "title" : "Title of this issue"
+   }
+]
+```
+
 ## Subscribe to a merge request
 
 Subscribes the authenticated user to a merge request to receive notification. If
diff --git a/doc/development/doc_styleguide.md b/doc/development/doc_styleguide.md
index 8292b393757..f5d97179f8a 100644
--- a/doc/development/doc_styleguide.md
+++ b/doc/development/doc_styleguide.md
@@ -103,14 +103,14 @@ Inside the document:
 
 - Every piece of documentation that comes with a new feature should declare the
   GitLab version that feature got introduced. Right below the heading add a
-  note: `_**Note:** This feature was introduced in GitLab 8.3_`
+  note: `>**Note:** This feature was introduced in GitLab 8.3`
 - If possible every feature should have a link to the MR that introduced it.
   The above note would be then transformed to:
-  `_**Note:** This feature was [introduced][ce-1242] in GitLab 8.3_`, where
+  `>**Note:** This feature was [introduced][ce-1242] in GitLab 8.3`, where
   the [link identifier](#links) is named after the repository (CE) and the MR
   number
 - If the feature is only in GitLab EE, don't forget to mention it, like:
-  `_**Note:** This feature was introduced in GitLab EE 8.3_`. Otherwise, leave
+  `>**Note:** This feature was introduced in GitLab EE 8.3`. Otherwise, leave
   this mention out
 
 ## References
@@ -141,6 +141,48 @@ Inside the document:
 
 [ruby-dl]: https://www.ruby-lang.org/en/downloads/ "Ruby download website"
 
+## Changing document location
+
+Changing a document's location is not to be taken lightly. Remember that the
+documentation is available to all installations under `help/` and not only to
+GitLab.com or http://docs.gitlab.com. Make sure this is discussed with the
+Documentation team beforehand.
+
+If you indeed need to change a document's location, do NOT remove the old
+document, but rather put a text in it that points to the new location, like:
+
+```
+This document was moved to [path/to/new_doc.md](path/to/new_doc.md).
+```
+
+where `path/to/new_doc.md` is the relative path to the root directory `doc/`.
+
+---
+
+For example, if you were to move `doc/workflow/lfs/lfs_administration.md` to
+`doc/administration/lfs.md`, then the steps would be:
+
+1. Copy `doc/workflow/lfs/lfs_administration.md` to `doc/administration/lfs.md`
+1. Replace the contents of `doc/workflow/lfs/lfs_administration.md` with:
+
+    ```
+    This document was moved to [administration/lfs.md](../../administration/lfs.md).
+    ```
+
+1. Find and replace any occurrences of the old location with the new one.
+   A quick way to find them is to use `grep`:
+
+    ```
+    grep -nR "lfs_administration.md" doc/
+    ```
+
+    The above command will search in the `doc/` directory for
+    `lfs_administration.md` recursively and will print the file and the line
+    where this file is mentioned. Note that we used just the filename
+    (`lfs_administration.md`) and not the whole the relative path
+    (`workflow/lfs/lfs_administration.md`).
+
+
 ## API
 
 Here is a list of must-have items. Use them in the exact order that appears
@@ -222,8 +264,8 @@ curl --data "name=foo" -H "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" "https://gitlab.
 
 #### Post data using JSON content
 
-_**Note:** In this example we create a new group. Watch carefully the single
-and double quotes._
+> **Note:** In this example we create a new group. Watch carefully the single
+and double quotes.
 
 ```bash
 curl -X POST -H "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" -H "Content-Type: application/json" --data '{"path": "my-group", "name": "My group"}' https://gitlab.example.com/api/v3/groups
diff --git a/doc/development/ui_guide.md b/doc/development/ui_guide.md
index 23760a14b39..5893b7c219e 100644
--- a/doc/development/ui_guide.md
+++ b/doc/development/ui_guide.md
@@ -49,8 +49,8 @@ information from database or file system
 ## Buttons
 
 * Button should contain icon or text. Exceptions should be approved by UX designer.
-* Use gray button on white background or white button on gray background.
 * Use red button for destructive actions (not revertable). For example removing issue.
 * Use green or blue button for primary action. Primary button should be only one. 
 Do not use both green and blue button in one form. 
+* For all other cases use default white button 
 
diff --git a/doc/logs/logs.md b/doc/logs/logs.md
index f84060b8d07..a2eca62d691 100644
--- a/doc/logs/logs.md
+++ b/doc/logs/logs.md
@@ -1,92 +1 @@
-## Log system
-GitLab has an advanced log system where everything is logged so that you can analyze your instance using various system log files.
-In addition to system log files, GitLab Enterprise Edition comes with Audit Events. Find more about them [in Audit Events documentation](http://docs.gitlab.com/ee/administration/audit_events.html)
-
-System log files are typically plain text in a standard log file format. This guide talks about how to read and use these system log files.
-
-#### production.log
-This file lives in `/var/log/gitlab/gitlab-rails/production.log` for omnibus package or in `/home/git/gitlab/log/production.log` for installations from the source.
-
-This file contains information about all performed requests. You can see url and type of request, IP address and what exactly parts of code were involved to service this particular request. Also you can see all SQL request that have been performed and how much time it took.
-This task is more useful for GitLab contributors and developers. Use part of this log file when you are going to report bug.
-
-```
-Started GET "/gitlabhq/yaml_db/tree/master" for 168.111.56.1 at 2015-02-12 19:34:53 +0200
-Processing by Projects::TreeController#show as HTML
-  Parameters: {"project_id"=>"gitlabhq/yaml_db", "id"=>"master"}
-
-  ... [CUT OUT]
-
-  amespaces"."created_at" DESC, "namespaces"."id" DESC LIMIT 1  [["id", 26]]
-  CACHE (0.0ms)  SELECT  "members".* FROM "members"  WHERE "members"."source_type" = 'Project' AND "members"."type" IN ('ProjectMember') AND "members"."source_id" = $1 AND "members"."source_type" = $2 AND "members"."user_id" = 1  ORDER BY "members"."created_at" DESC, "members"."id" DESC LIMIT 1  [["source_id", 18], ["source_type", "Project"]]
-  CACHE (0.0ms)  SELECT  "members".* FROM "members"  WHERE "members"."source_type" = 'Project' AND "members".
-   (1.4ms)  SELECT COUNT(*) FROM "merge_requests"  WHERE "merge_requests"."target_project_id" = $1 AND ("merge_requests"."state" IN ('opened','reopened'))  [["target_project_id", 18]]
-  Rendered layouts/nav/_project.html.haml (28.0ms)
-  Rendered layouts/_collapse_button.html.haml (0.2ms)
-  Rendered layouts/_flash.html.haml (0.1ms)
-  Rendered layouts/_page.html.haml (32.9ms)
-Completed 200 OK in 166ms (Views: 117.4ms | ActiveRecord: 27.2ms)
-```
-In this example we can see that server processed HTTP request with url `/gitlabhq/yaml_db/tree/master` from IP 168.111.56.1 at 2015-02-12 19:34:53 +0200. Also we can see that request was processed by Projects::TreeController.
-
-#### application.log
-This file lives in `/var/log/gitlab/gitlab-rails/application.log` for omnibus package or in `/home/git/gitlab/log/application.log` for installations from the source.
-
-This log file helps you discover events happening in your instance such as user creation, project removing and so on.
-
-```
-October 06, 2014 11:56: User "Administrator" (admin@example.com) was created
-October 06, 2014 11:56: Documentcloud created a new project "Documentcloud / Underscore"
-October 06, 2014 11:56: Gitlab Org created a new project "Gitlab Org / Gitlab Ce"
-October 07, 2014 11:25: User "Claudie Hodkiewicz" (nasir_stehr@olson.co.uk)  was removed
-October 07, 2014 11:25: Project "project133" was removed
-```
-#### githost.log
-This file lives in `/var/log/gitlab/gitlab-rails/githost.log` for omnibus package or in `/home/git/gitlab/log/githost.log` for installations from the source.
-
-The GitLab has to interact with git repositories but in some rare cases something can go wrong and in this case you will know what exactly happened. This log file contains all failed requests from GitLab to git repository. In majority of cases this file will be useful for developers only.
-```
-December 03, 2014 13:20 -> ERROR -> Command failed [1]: /usr/bin/git --git-dir=/Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/gitlab-satellites/group184/gitlabhq/.git --work-tree=/Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/gitlab-satellites/group184/gitlabhq merge --no-ff -mMerge branch 'feature_conflict' into 'feature' source/feature_conflict
-
-error: failed to push some refs to '/Users/vsizov/gitlab-development-kit/repositories/gitlabhq/gitlab_git.git'
-```
-
-#### sidekiq.log
-This file lives in `/var/log/gitlab/gitlab-rails/sidekiq.log` for omnibus package or in `/home/git/gitlab/log/sidekiq.log` for installations from the source.
-
-GitLab uses background jobs for processing tasks which can take a long time. All information about processing these jobs are writing down to this file.
-```
-2014-06-10T07:55:20Z 2037 TID-tm504 ERROR: /opt/bitnami/apps/discourse/htdocs/vendor/bundle/ruby/1.9.1/gems/redis-3.0.7/lib/redis/client.rb:228:in `read'
-2014-06-10T18:18:26Z 14299 TID-55uqo INFO: Booting Sidekiq 3.0.0 with redis options {:url=>"redis://localhost:6379/0", :namespace=>"sidekiq"}
-```
-
-#### gitlab-shell.log
-This file lives in `/var/log/gitlab/gitlab-shell/gitlab-shell.log` for omnibus package or in `/home/git/gitlab-shell/gitlab-shell.log` for installations from the source.
-
-gitlab-shell is using by Gitlab for executing git commands and provide ssh access to git repositories.
-
-```
-I, [2015-02-13T06:17:00.671315 #9291]  INFO -- : Adding project root/example.git at </var/opt/gitlab/git-data/repositories/root/dcdcdcdcd.git>.
-I, [2015-02-13T06:17:00.679433 #9291]  INFO -- : Moving existing hooks directory and symlinking global hooks directory for /var/opt/gitlab/git-data/repositories/root/example.git.
-```
-
-#### unicorn_stderr.log
-This file lives in `/var/log/gitlab/unicorn/unicorn_stderr.log` for omnibus package or in `/home/git/gitlab/log/unicorn_stderr.log` for installations from the source.
-
-Unicorn is a high-performance forking Web server which is used for serving the GitLab application. You can look at this log if, for example, your application does not respond. This log contains all information about the state of unicorn processes at any given time.
-
-```
-I, [2015-02-13T06:14:46.680381 #9047]  INFO -- : Refreshing Gem list
-I, [2015-02-13T06:14:56.931002 #9047]  INFO -- : listening on addr=127.0.0.1:8080 fd=12
-I, [2015-02-13T06:14:56.931381 #9047]  INFO -- : listening on addr=/var/opt/gitlab/gitlab-rails/sockets/gitlab.socket fd=13
-I, [2015-02-13T06:14:56.936638 #9047]  INFO -- : master process ready
-I, [2015-02-13T06:14:56.946504 #9092]  INFO -- : worker=0 spawned pid=9092
-I, [2015-02-13T06:14:56.946943 #9092]  INFO -- : worker=0 ready
-I, [2015-02-13T06:14:56.947892 #9094]  INFO -- : worker=1 spawned pid=9094
-I, [2015-02-13T06:14:56.948181 #9094]  INFO -- : worker=1 ready
-W, [2015-02-13T07:16:01.312916 #9094]  WARN -- : #<Unicorn::HttpServer:0x0000000208f618>: worker (pid: 9094) exceeds memory limit (320626688 bytes > 247066940 bytes)
-W, [2015-02-13T07:16:01.313000 #9094]  WARN -- : Unicorn::WorkerKiller send SIGQUIT (pid: 9094) alive: 3621 sec (trial 1)
-I, [2015-02-13T07:16:01.530733 #9047]  INFO -- : reaped #<Process::Status: pid 9094 exit 0> worker=1
-I, [2015-02-13T07:16:01.534501 #13379]  INFO -- : worker=1 spawned pid=13379
-I, [2015-02-13T07:16:01.534848 #13379]  INFO -- : worker=1 ready
-```
+This document was moved to [administration/logs.md](../administration/logs.md).
diff --git a/doc/update/8.8-to-8.9.md b/doc/update/8.8-to-8.9.md
index 67a986ead57..f14046bb4be 100644
--- a/doc/update/8.8-to-8.9.md
+++ b/doc/update/8.8-to-8.9.md
@@ -120,7 +120,7 @@ will need to let gitlab-workhorse listen on a TCP port. You can do this
 via [/etc/default/gitlab].
 
 [Apache templates]: https://gitlab.com/gitlab-org/gitlab-recipes/tree/master/web-server/apache
-[/etc/default/gitlab]: https://gitlab.com/gitlab-org/gitlab-ce/blob/8-8-stable/lib/support/init.d/gitlab.default.example#L37
+[/etc/default/gitlab]: https://gitlab.com/gitlab-org/gitlab-ce/blob/8-9-stable/lib/support/init.d/gitlab.default.example#L37
 
 #### Init script
 
@@ -145,7 +145,7 @@ To make sure you didn't miss anything run a more thorough check:
 
 If all items are green, then congratulations, the upgrade is complete!
 
-## Things went south? Revert to previous version (8.7)
+## Things went south? Revert to previous version (8.8)
 
 ### 1. Revert the code to the previous version
 
diff --git a/doc/workflow/merge_requests.md b/doc/workflow/merge_requests.md
index 1b5718c91c1..d2ec56e6504 100644
--- a/doc/workflow/merge_requests.md
+++ b/doc/workflow/merge_requests.md
@@ -2,6 +2,17 @@
 
 Merge requests allow you to exchange changes you made to source code
 
+## Only allow merge requests to be merged if the build succeeds
+
+You can prevent merge requests from being merged if their build did not succeed
+in the project settings page.
+
+![only_allow_merge_if_build_succeeds](merge_requests/only_allow_merge_if_build_succeeds.png)
+
+Navigate to project settings page and select the `Only allow merge requests to be merged if the build succeeds` check box.
+
+Please note that you need to have builds configured to enable this feature.
+
 ## Checkout merge requests locally
 
 Locate the section for your GitLab remote in the `.git/config` file. It looks like this:
diff --git a/doc/workflow/merge_requests/only_allow_merge_if_build_succeeds.png b/doc/workflow/merge_requests/only_allow_merge_if_build_succeeds.png
new file mode 100644
index 00000000000..18bebf5fe92
--- /dev/null
+++ b/doc/workflow/merge_requests/only_allow_merge_if_build_succeeds.png