Merge branch 'master' into fix/gb/fix-import-export-restoring-associations

* master: (114 commits)

19 files changed, 396 insertions, 35 deletions

diff --git a/doc/administration/raketasks/check.md b/doc/administration/raketasks/check.md
index c8b5434c068..c39cb49b1c6 100644
--- a/doc/administration/raketasks/check.md
+++ b/doc/administration/raketasks/check.md
@@ -28,19 +28,25 @@ exactly which repositories are causing the trouble.
 
 ### Check all GitLab repositories
 
+>**Note:**
+>
+>  - `gitlab:repo:check` has been deprecated in favor of `gitlab:git:fsck`
+>  - [Deprecated][ce-15931] in GitLab 10.4.
+>  - `gitlab:repo:check` will be removed in the future. [Removal issue][ce-41699]
+
 This task loops through all repositories on the GitLab server and runs the
 3 integrity checks described previously.
 
 **Omnibus Installation**
 
 ```
-sudo gitlab-rake gitlab:repo:check
+sudo gitlab-rake gitlab:git:fsck
 ```
 
 **Source Installation**
 
 ```bash
-sudo -u git -H bundle exec rake gitlab:repo:check RAILS_ENV=production
+sudo -u git -H bundle exec rake gitlab:git:fsck RAILS_ENV=production
 ```
 
 ### Check repositories for a specific user
@@ -76,3 +82,6 @@ The LDAP check Rake task will test the bind_dn and password credentials
 (if configured) and will list a sample of LDAP users. This task is also
 executed as part of the `gitlab:check` task, but can run independently.
 See [LDAP Rake Tasks - LDAP Check](ldap.md#check) for details.
+
+[ce-15931]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15931
+[ce-41699]: https://gitlab.com/gitlab-org/gitlab-ce/issues/41699
diff --git a/doc/api/boards.md b/doc/api/boards.md
index 69c47abc806..246de50323e 100644
--- a/doc/api/boards.md
+++ b/doc/api/boards.md
@@ -15,10 +15,10 @@ GET /projects/:id/boards
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`   | integer/string  | yes    | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
 
 ```bash
-curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/:id/boards
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards
 ```
 
 Example response:
@@ -27,6 +27,19 @@ Example response:
 [
   {
     "id" : 1,
+    "project": {
+      "id": 5,
+      "name": "Diaspora Project Site",
+      "name_with_namespace": "Diaspora / Diaspora Project Site",
+      "path": "diaspora-project-site",
+      "path_with_namespace": "diaspora/diaspora-project-site",
+      "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
+      "web_url": "http://example.com/diaspora/diaspora-project-site"
+    },
+    "milestone":   {
+      "id": 12
+      "title": "10.0"
+    },
     "lists" : [
       {
         "id" : 1,
@@ -60,6 +73,74 @@ Example response:
 ]
 ```
 
+## Single board
+
+Get a single board.
+
+```
+GET /projects/:id/boards/:board_id
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |
+
+```bash
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1
+```
+
+Example response:
+
+```json
+  {
+    "id": 1,
+    "name:": "project issue board",
+    "project": {
+      "id": 5,
+      "name": "Diaspora Project Site",
+      "name_with_namespace": "Diaspora / Diaspora Project Site",
+      "path": "diaspora-project-site",
+      "path_with_namespace": "diaspora/diaspora-project-site",
+      "http_url_to_repo": "http://example.com/diaspora/diaspora-project-site.git",
+      "web_url": "http://example.com/diaspora/diaspora-project-site"
+    },
+    "milestone":   {
+      "id": 12
+      "title": "10.0"
+    },
+    "lists" : [
+      {
+        "id" : 1,
+        "label" : {
+          "name" : "Testing",
+          "color" : "#F0AD4E",
+          "description" : null
+        },
+        "position" : 1
+      },
+      {
+        "id" : 2,
+        "label" : {
+          "name" : "Ready",
+          "color" : "#FF0000",
+          "description" : null
+        },
+        "position" : 2
+      },
+      {
+        "id" : 3,
+        "label" : {
+          "name" : "Production",
+          "color" : "#FF5F00",
+          "description" : null
+        },
+        "position" : 3
+      }
+    ]
+  }
+```
+
 ## List board lists
 
 Get a list of the board's lists.
@@ -71,8 +152,8 @@ GET /projects/:id/boards/:board_id/lists
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`   | integer/string  | yes    | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
-| `board_id`   | integer  | yes    | The ID of a board |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |
 
 ```bash
 curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1/lists
@@ -122,9 +203,9 @@ GET /projects/:id/boards/:board_id/lists/:list_id
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`      | integer/string | yes   | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
-| `board_id`   | integer  | yes    | The ID of a board |
-| `list_id`| integer | yes   | The ID of a board's list |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |
+| `list_id`| integer | yes | The ID of a board's list |
 
 ```bash
 curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1/lists/1
@@ -154,9 +235,9 @@ POST /projects/:id/boards/:board_id/lists
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`            | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
-| `board_id`   | integer  | yes    | The ID of a board |
-| `label_id`         | integer  | yes | The ID of a label |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |
+| `label_id` | integer | yes | The ID of a label |
 
 ```bash
 curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1/lists?label_id=5
@@ -186,10 +267,10 @@ PUT /projects/:id/boards/:board_id/lists/:list_id
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`            | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
-| `board_id`   | integer  | yes    | The ID of a board |
-| `list_id`      | integer | yes | The ID of a board's list |
-| `position`         | integer  | yes  | The position of the list |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |
+| `list_id` | integer | yes | The ID of a board's list |
+| `position` | integer | yes | The position of the list |
 
 ```bash
 curl --request PUT --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1/lists/1?position=2
@@ -219,9 +300,9 @@ DELETE /projects/:id/boards/:board_id/lists/:list_id
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id`            | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
-| `board_id`   | integer  | yes    | The ID of a board |
-| `list_id`      | integer | yes | The ID of a board's list |
+| `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
+| `board_id` | integer | yes | The ID of a board |
+| `list_id` | integer | yes | The ID of a board's list |
 
 ```bash
 curl --request DELETE --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/boards/1/lists/1
diff --git a/doc/api/issues.md b/doc/api/issues.md
index d2fefbe68aa..da89db17cd9 100644
--- a/doc/api/issues.md
+++ b/doc/api/issues.md
@@ -1124,6 +1124,45 @@ Example response:
 ```
 
 
+## Participants on issues
+
+```
+GET /projects/:id/issues/:issue_iid/participants
+```
+
+| Attribute   | Type    | Required | Description                          |
+|-------------|---------|----------|--------------------------------------|
+| `id`        | integer/string | yes      | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user  |
+| `issue_iid` | integer | yes      | The internal ID of a project's issue |
+
+```bash
+curl --request GET --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects/5/issues/93/participants
+```
+
+Example response:
+
+```json
+[
+  {
+    "id": 1,
+    "name": "John Doe1",
+    "username": "user1",
+    "state": "active",
+    "avatar_url": "http://www.gravatar.com/avatar/c922747a93b40d1ea88262bf1aebee62?s=80&d=identicon",
+    "web_url": "http://localhost/user1"
+  },
+  {
+    "id": 5,
+    "name": "John Doe5",
+    "username": "user5",
+    "state": "active",
+    "avatar_url": "http://www.gravatar.com/avatar/4aea8cf834ed91844a2da4ff7ae6b491?s=80&d=identicon",
+    "web_url": "http://localhost/user5"
+  }
+]
+```
+
+
 ## Comments on issues
 
 Comments are done via the [notes](notes.md) resource.
diff --git a/doc/api/merge_requests.md b/doc/api/merge_requests.md
index 4d3592e8f71..24afcef9a31 100644
--- a/doc/api/merge_requests.md
+++ b/doc/api/merge_requests.md
@@ -308,6 +308,41 @@ Parameters:
 }
 ```
 
+## Get single MR participants
+
+Get a list of merge request participants.
+
+```
+GET /projects/:id/merge_requests/:merge_request_iid/participants
+```
+
+Parameters:
+
+- `id` (required) - The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user
+- `merge_request_iid` (required) - The internal ID of the merge request
+
+
+```json
+[
+  {
+    "id": 1,
+    "name": "John Doe1",
+    "username": "user1",
+    "state": "active",
+    "avatar_url": "http://www.gravatar.com/avatar/c922747a93b40d1ea88262bf1aebee62?s=80&d=identicon",
+    "web_url": "http://localhost/user1"
+  },
+  {
+    "id": 2,
+    "name": "John Doe2",
+    "username": "user2",
+    "state": "active",
+    "avatar_url": "http://www.gravatar.com/avatar/10fc7f102be8de7657fb4d80898bbfe3?s=80&d=identicon",
+    "web_url": "http://localhost/user2"
+  },
+]
+```
+
 ## Get single MR commits
 
 Get a list of merge request commits.
diff --git a/doc/api/pages_domains.md b/doc/api/pages_domains.md
index 50685f335f7..20275b902c6 100644
--- a/doc/api/pages_domains.md
+++ b/doc/api/pages_domains.md
@@ -21,6 +21,7 @@ curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/a
   {
     "domain": "ssl.domain.example",
     "url": "https://ssl.domain.example",
+    "project_id": 1337,
     "certificate": {
       "expired": false,
       "expiration": "2020-04-12T14:32:00.000Z"
diff --git a/doc/api/runners.md b/doc/api/runners.md
index 015b09a745e..7495c6cdedb 100644
--- a/doc/api/runners.md
+++ b/doc/api/runners.md
@@ -30,14 +30,18 @@ Example response:
         "description": "test-1-20150125",
         "id": 6,
         "is_shared": false,
-        "name": null
+        "name": null,
+        "online": true,
+        "status": "online"
     },
     {
         "active": true,
         "description": "test-2-20150125",
         "id": 8,
         "is_shared": false,
-        "name": null
+        "name": null,
+        "online": false,
+        "status": "offline"
     }
 ]
 ```
@@ -69,28 +73,36 @@ Example response:
         "description": "shared-runner-1",
         "id": 1,
         "is_shared": true,
-        "name": null
+        "name": null,
+        "online": true,
+        "status": "online"
     },
     {
         "active": true,
         "description": "shared-runner-2",
         "id": 3,
         "is_shared": true,
-        "name": null
+        "name": null,
+        "online": false
+        "status": "offline"
     },
     {
         "active": true,
         "description": "test-1-20150125",
         "id": 6,
         "is_shared": false,
-        "name": null
+        "name": null,
+        "online": true
+        "status": "paused"
     },
     {
         "active": true,
         "description": "test-2-20150125",
         "id": 8,
         "is_shared": false,
-        "name": null
+        "name": null,
+        "online": false,
+        "status": "offline"
     }
 ]
 ```
@@ -122,6 +134,8 @@ Example response:
     "is_shared": false,
     "contacted_at": "2016-01-25T16:39:48.066Z",
     "name": null,
+    "online": true,
+    "status": "online",
     "platform": null,
     "projects": [
         {
@@ -176,6 +190,8 @@ Example response:
     "is_shared": false,
     "contacted_at": "2016-01-25T16:39:48.066Z",
     "name": null,
+    "online": true,
+    "status": "online",
     "platform": null,
     "projects": [
         {
@@ -327,14 +343,18 @@ Example response:
         "description": "test-2-20150125",
         "id": 8,
         "is_shared": false,
-        "name": null
+        "name": null,
+        "online": false,
+        "status": "offline"
     },
     {
         "active": true,
         "description": "development_runner",
         "id": 5,
         "is_shared": true,
-        "name": null
+        "name": null,
+        "online": true
+        "status": "paused"
     }
 ]
 ```
@@ -364,7 +384,9 @@ Example response:
     "description": "test-2016-02-01",
     "id": 9,
     "is_shared": false,
-    "name": null
+    "name": null,
+    "online": true,
+    "status": "online"
 }
 ```
 
diff --git a/doc/api/services.md b/doc/api/services.md
index 7e2afc71f9a..2928ab6cc75 100644
--- a/doc/api/services.md
+++ b/doc/api/services.md
@@ -562,6 +562,9 @@ DELETE /projects/:id/services/jira
 
 Kubernetes / Openshift integration
 
+CAUTION: **Warning:**
+Kubernetes service integration has been deprecated in GitLab 10.3. API service endpoints will continue to work as long as the Kubernetes service is active, however if the service is inactive API endpoints will automatically return a `400 Bad Request`. Read [GitLab 10.3 release post](https://about.gitlab.com/2017/12/22/gitlab-10-3-released/#kubernetes-integration-service) for more information.
+
 ### Create/Edit Kubernetes service
 
 Set Kubernetes service for a project.
diff --git a/doc/api/settings.md b/doc/api/settings.md
index 0e4758cda2d..0b5b1f0c134 100644
--- a/doc/api/settings.md
+++ b/doc/api/settings.md
@@ -69,7 +69,7 @@ PUT /application/settings
 | `after_sign_up_text`                     | string           | no                                            | Text shown to the user after signing up                                                                                                                                                                                                                                                                                                                                                                                                                   |
 | `akismet_api_key`                        | string           | no                                            | API key for akismet spam protection                                                                                                                                                                                                                                                                                                                                                                                                                       |
 | `akismet_enabled`                        | boolean          | no                                            | Enable or disable akismet spam protection                                                                                                                                                                                                                                                                                                                                                                                                                 |
-| `circuitbreaker_access_retries           | integer          | no                                            | The number of attempts GitLab will make to access a storage.                                                                                                                                                                                                                                                                                                                                                                                              |
+| `circuitbreaker_access_retries`          | integer          | no                                            | The number of attempts GitLab will make to access a storage.                                                                                                                                                                                                                                                                                                                                                                                              |
 | `circuitbreaker_check_interval`          | integer          | no                                            | Number of seconds in between storage checks.                                                                                                                                                                                                                                                                                                                                                                                                              |
 | `circuitbreaker_failure_count_threshold` | integer          | no                                            | The number of failures of after which GitLab will completely prevent access to the storage.                                                                                                                                                                                                                                                                                                                                                               |
 | `circuitbreaker_failure_reset_time`      | integer          | no                                            | Time in seconds GitLab will keep storage failure information. When no failures occur during this time, the failure information is reset.                                                                                                                                                                                                                                                                                                                  |
diff --git a/doc/development/gitaly.md b/doc/development/gitaly.md
index ca2048c7019..26abf967dcf 100644
--- a/doc/development/gitaly.md
+++ b/doc/development/gitaly.md
@@ -97,6 +97,29 @@ describe 'Gitaly Request count tests' do
 end
 ```
 
+## Running tests with a locally modified version of Gitaly
+
+Normally, gitlab-ce/ee tests use a local clone of Gitaly in `tmp/tests/gitaly`
+pinned at the version specified in GITALY_SERVER_VERSION. If you want
+to run tests locally against a modified version of Gitaly you can
+replace `tmp/tests/gitaly` with a symlink.
+
+```shell
+rm -rf tmp/tests/gitaly
+ln -s /path/to/gitaly tmp/tests/gitaly
+```
+
+Make sure you run `make` in your local Gitaly directory before running
+tests. Otherwise, Gitaly will fail to boot.
+
+If you make changes to your local Gitaly in between test runs you need
+to manually run `make` again.
+
+Note that CI tests will not use your locally modified version of
+Gitaly. To use a custom Gitaly version in CI you need to update
+GITALY_SERVER_VERSION. You can use the format `=revision` to use a
+non-tagged commit from https://gitlab.com/gitlab-org/gitaly in CI.
+
 ---
 
 [Return to Development documentation](README.md)
diff --git a/doc/development/testing_guide/end_to_end_tests.md b/doc/development/testing_guide/end_to_end_tests.md
new file mode 100644
index 00000000000..abe5b06e0f0
--- /dev/null
+++ b/doc/development/testing_guide/end_to_end_tests.md
@@ -0,0 +1,80 @@
+# End-to-End Testing
+
+## What is End-to-End testing?
+
+End-to-End testing is a strategy used to check whether your application works
+as expected across entire software stack and architecture, including
+integration of all microservices and components that are supposed to work
+together.
+
+## How do we test GitLab?
+
+We use [Omnibus GitLab][omnibus-gitlab] to build GitLab packages and then we
+test these packages using [GitLab QA][gitlab-qa] project, which is entirely
+black-box, click-driven testing framework.
+
+### Testing nightly builds
+
+We run scheduled pipeline each night to test nightly builds created by Omnibus.
+You can find these nightly pipelines at [GitLab QA pipelines page][gitlab-qa-pipelines].
+
+### Testing code in merge requests
+
+It is possible to run end-to-end tests (eventually being run within a
+[GitLab QA pipeline][gitlab-qa-pipelines]) for a merge request by triggering
+the `package-qa` manual action, that should be present in a merge request
+widget.
+
+Mmanual action that starts end-to-end tests is also available in merge requests
+in Omnibus GitLab project.
+
+Below you can read more about how to use it and how does it work.
+
+#### How does it work?
+
+Currently, we are using _multi-project pipeline_-like approach to run QA
+pipelines.
+
+1. Developer triggers a manual action, that can be found in CE and EE merge
+requests. This starts a chain of pipelines in multiple projects.
+
+1. The script being executed triggers a pipeline in GitLab Omnibus and waits
+for the resulting status. We call this a _status attribution_.
+
+1. GitLab packages are being built in Omnibus pipeline. Packages are going to be
+pushed to Container Registry.
+
+1. When packages are ready, and available in the registry, a final step in the
+pipeline, that is now running in Omnibus, triggers a new pipeline in the GitLab
+QA project. It also waits for a resulting status.
+
+1. GitLab QA pulls images from the registry, spins-up containers and runs tests
+against a test environment that has been just orchestrated by the `gitlab-qa`
+tool.
+
+1. The result of the GitLab QA pipeline is being propagated upstream, through
+Omnibus, back to CE / EE merge request.
+
+#### How do I write tests?
+
+In order to write new tests, you first need to learn more about GitLab QA
+architecture. See the [documentation about it][gitlab-qa-architecture] in
+GitLab QA project.
+
+Once you decided where to put test environment orchestration scenarios and
+instance specs, take a look at the [relevant documentation][instance-qa-readme]
+and examples in [the `qa/` directory][instance-qa-examples].
+
+## Where can I ask for help?
+
+You can ask question in the `#qa` channel on Slack (GitLab internal) or you can
+find an issue you would like to work on in [the issue tracker][gitlab-qa-issues]
+and start a new discussion there.
+
+[omnibus-gitlab]: https://gitlab.com/gitlab-org/omnibus-gitlab
+[gitlab-qa]: https://gitlab.com/gitlab-org/gitlab-qa
+[gitlab-qa-pipelines]: https://gitlab.com/gitlab-org/gitlab-qa/pipelines
+[gitlab-qa-architecture]: https://gitlab.com/gitlab-org/gitlab-qa/blob/master/docs/architecture.md
+[gitlab-qa-issues]: https://gitlab.com/gitlab-org/gitlab-qa/issues
+[instance-qa-readme]: https://gitlab.com/gitlab-org/gitlab-ce/tree/master/qa/README.md
+[instance-qa-examples]: https://gitlab.com/gitlab-org/gitlab-ce/tree/master/qa/qa
diff --git a/doc/development/testing_guide/index.md b/doc/development/testing_guide/index.md
index 65386f231a0..74d09eb91ff 100644
--- a/doc/development/testing_guide/index.md
+++ b/doc/development/testing_guide/index.md
@@ -65,6 +65,13 @@ Everything you should know about how to test Rake tasks.
 
 ---
 
+## [End-to-end tests](end_to_end_tests.md)
+
+Everything you should know about how to run end-to-end tests using
+[GitLab QA][gitlab-qa] testing framework.
+
+---
+
 ## Spinach (feature) tests
 
 GitLab [moved from Cucumber to Spinach](https://github.com/gitlabhq/gitlabhq/pull/1426)
@@ -89,3 +96,4 @@ test should be re-implemented using RSpec instead.
 [Capybara]: https://github.com/teamcapybara/capybara
 [Karma]: http://karma-runner.github.io/
 [Jasmine]: https://jasmine.github.io/
+[gitlab-qa]: https://gitlab.com/gitlab-org/gitlab-qa
diff --git a/doc/development/testing_guide/testing_levels.md b/doc/development/testing_guide/testing_levels.md
index 1cbd4350284..4adf0dc7c7a 100644
--- a/doc/development/testing_guide/testing_levels.md
+++ b/doc/development/testing_guide/testing_levels.md
@@ -121,6 +121,9 @@ running feature tests (i.e. using Capybara) against it.
 The actual test scenarios and steps are [part of GitLab Rails] so that they're
 always in-sync with the codebase.
 
+Read a separate document about [end-to-end tests](end_to_end_tests.md) to
+learn more.
+
 [multiple pieces]: ../architecture.md#components
 [GitLab Shell]: https://gitlab.com/gitlab-org/gitlab-shell
 [GitLab Workhorse]: https://gitlab.com/gitlab-org/gitlab-workhorse
diff --git a/doc/development/what_requires_downtime.md b/doc/development/what_requires_downtime.md
index 05e0a64af18..9d0c62ecc35 100644
--- a/doc/development/what_requires_downtime.md
+++ b/doc/development/what_requires_downtime.md
@@ -195,6 +195,63 @@ end
 
 And that's it, we're done!
 
+## Changing Column Types For Large Tables
+
+While `change_column_type_concurrently` can be used for changing the type of a
+column without downtime it doesn't work very well for large tables. Because all
+of the work happens in sequence the migration can take a very long time to
+complete, preventing a deployment from proceeding.
+`change_column_type_concurrently` can also produce a lot of pressure on the
+database due to it rapidly updating many rows in sequence.
+
+To reduce database pressure you should instead use
+`change_column_type_using_background_migration` when migrating a column in a
+large table (e.g. `issues`). This method works similar to
+`change_column_type_concurrently` but uses background migration to spread the
+work / load over a longer time period, without slowing down deployments.
+
+Usage of this method is fairly simple:
+
+```ruby
+class ExampleMigration < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  disable_ddl_transaction!
+
+  class Issue < ActiveRecord::Base
+    self.table_name = 'issues'
+
+    include EachBatch
+
+    def self.to_migrate
+      where('closed_at IS NOT NULL')
+    end
+  end
+
+  def up
+    change_column_type_using_background_migration(
+      Issue.to_migrate,
+      :closed_at,
+      :datetime_with_timezone
+    )
+  end
+
+  def down
+    change_column_type_using_background_migration(
+      Issue.to_migrate,
+      :closed_at,
+      :datetime
+    )
+  end
+end
+```
+
+This would change the type of `issues.closed_at` to `timestamp with time zone`.
+
+Keep in mind that the relation passed to
+`change_column_type_using_background_migration` _must_ include `EachBatch`,
+otherwise it will raise a `TypeError`.
+
 ## Adding Indexes
 
 Adding indexes is an expensive process that blocks INSERT and UPDATE queries for
diff --git a/doc/install/installation.md b/doc/install/installation.md
index 67b89d608cc..2b7352d3561 100644
--- a/doc/install/installation.md
+++ b/doc/install/installation.md
@@ -299,9 +299,9 @@ sudo usermod -aG redis git
 ### Clone the Source
 
     # Clone GitLab repository
-    sudo -u git -H git clone https://gitlab.com/gitlab-org/gitlab-ce.git -b 10-3-stable gitlab
+    sudo -u git -H git clone https://gitlab.com/gitlab-org/gitlab-ce.git -b 10-4-stable gitlab
 
-**Note:** You can change `10-3-stable` to `master` if you want the *bleeding edge* version, but never install master on a production server!
+**Note:** You can change `10-4-stable` to `master` if you want the *bleeding edge* version, but never install master on a production server!
 
 ### Configure It
 
diff --git a/doc/user/project/integrations/kubernetes.md b/doc/user/project/integrations/kubernetes.md
index 079a840a56a..710cf78e84f 100644
--- a/doc/user/project/integrations/kubernetes.md
+++ b/doc/user/project/integrations/kubernetes.md
@@ -3,7 +3,7 @@ last_updated: 2017-12-28
 ---
 
 CAUTION: **Warning:**
-Kubernetes service integration has been deprecated on GitLab 10.4. Fields on Kubernetes integration page are now uneditable, you can configure your clusters using the new [Clusters](../clusters/index.md) page.
+Kubernetes service integration has been deprecated in GitLab 10.3. If the service is active the cluster information still be editable, however we advised to disable and reconfigure the clusters using the new [Clusters](../clusters/index.md) page. If the service is inactive the fields will be uneditable. Read [GitLab 10.3 release post](https://about.gitlab.com/2017/12/22/gitlab-10-3-released/#kubernetes-integration-service) for more information.
 
 # GitLab Kubernetes / OpenShift integration
 
diff --git a/doc/user/project/integrations/project_services.md b/doc/user/project/integrations/project_services.md
index 6bda07f103e..9496d6f2ce0 100644
--- a/doc/user/project/integrations/project_services.md
+++ b/doc/user/project/integrations/project_services.md
@@ -39,7 +39,7 @@ Click on the service links to see further configuration instructions and details
 | [Irker (IRC gateway)](irker.md) | Send IRC messages, on update, to a list of recipients through an Irker gateway |
 | [JIRA](jira.md) | JIRA issue tracker |
 | JetBrains TeamCity CI | A continuous integration and build server |
-| [Kubernetes](kubernetes.md) _(Has been deprecated in GitLab 10.4)_ | A containerized deployment service |
+| [Kubernetes](kubernetes.md) _(Has been deprecated in GitLab 10.3)_ | A containerized deployment service |
 | [Mattermost slash commands](mattermost_slash_commands.md) | Mattermost chat and ChatOps slash commands |
 | [Mattermost Notifications](mattermost.md) | Receive event notifications in Mattermost |
 | [Microsoft teams](microsoft_teams.md) |  Receive notifications for actions that happen on GitLab into a room on Microsoft Teams using Office 365 Connectors |
diff --git a/doc/user/project/merge_requests/fast_forward_merge.md b/doc/user/project/merge_requests/fast_forward_merge.md
index 085170d9f03..3cd91a185e3 100644
--- a/doc/user/project/merge_requests/fast_forward_merge.md
+++ b/doc/user/project/merge_requests/fast_forward_merge.md
@@ -9,7 +9,7 @@ When the fast-forward merge ([`--ff-only`][ffonly]) setting is enabled, no merge
 commits will be created and all merges are fast-forwarded, which means that
 merging is only allowed if the branch could be fast-forwarded.
 
-When a fast-forward merge is not possible, the user must rebase the branch manually.
+When a fast-forward merge is not possible, the user is given the option to rebase.
 
 ## Use cases
 
@@ -25,7 +25,7 @@ merge commits. In such cases, the fast-forward merge is the perfect candidate.
 Now, when you visit the merge request page, you will be able to accept it
 **only if a fast-forward merge is possible**.
 
-![Fast forward merge request](img/ff_merge_mr.png)
+![Fast forward merge request](img/ff_merge_rebase.png)
 
 If the target branch is ahead of the source branch, you need to rebase the
 source branch locally before you will be able to do a fast-forward merge.
diff --git a/doc/user/project/merge_requests/img/ff_merge_mr.png b/doc/user/project/merge_requests/img/ff_merge_mr.png
deleted file mode 100644
index 241cc990343..00000000000
--- a/doc/user/project/merge_requests/img/ff_merge_mr.png
+++ /dev/null
diff --git a/doc/user/project/merge_requests/img/ff_merge_rebase.png b/doc/user/project/merge_requests/img/ff_merge_rebase.png
new file mode 100644
index 00000000000..f6139f189ce
--- /dev/null
+++ b/doc/user/project/merge_requests/img/ff_merge_rebase.png