Revert "Merge branch 'docs/jira-old' into 'master'"

This reverts merge request !7365

doc/integration/README.md

@@ -5,7 +5,7 @@ trackers and external authentication.
 See the documentation below for details on how to configure these services.
-- [Jira](../project_services/jira.md) Integrate with the JIRA issue tracker
+- [JIRA](jira.md) Integrate with the JIRA issue tracker
 - [External issue tracker](external-issue-tracker.md) Redmine, JIRA, etc.
 - [LDAP](ldap.md) Set up sign in via LDAP
 - [OmniAuth](omniauth.md) Sign in via Twitter, GitHub, GitLab.com, Google, Bitbucket, Facebook, Shibboleth, SAML, Crowd and Azure

doc/integration/jira.md

 # GitLab JIRA integration
-This document was moved under [project_services/jira](../project_services/jira.md).
+GitLab can be configured to interact with JIRA. Configuration happens via
+user name and password. Connecting to a JIRA server via CAS is not possible.
+
+Each project can be configured to connect to a different JIRA instance, see the
+[configuration](#configuration) section. If you have one JIRA instance you can
+pre-fill the settings page with a default template. To configure the template
+see the [Services Templates][services-templates] document.
+
+Once the project is connected to JIRA, you can reference and close the issues
+in JIRA directly from GitLab.
+
+## Table of Contents
+* [Referencing JIRA Issues from GitLab](#referencing-JIRA-issues)
+* [Closing JIRA Issues from GitLab](#closing-JIRA-issues)
+* [Configuration](#configuration)
+
+### Referencing JIRA Issues
+
+When GitLab project has JIRA issue tracker configured and enabled, mentioning
+JIRA issue in GitLab will automatically add a comment in JIRA issue with the
+link back to GitLab. This means that in comments in merge requests and commits
+referencing an issue, eg. `PROJECT-7`, will add a comment in JIRA issue in the
+format:
+
+```
+ USER mentioned this issue in RESOURCE_NAME of [PROJECT_NAME|LINK_TO_COMMENT]:
+ ENTITY_TITLE
+```
+
+* `USER` A user that mentioned the issue. This is the link to the user profile in GitLab.
+* `LINK_TO_THE_COMMENT` Link to the origin of mention with a name of the entity where JIRA issue was mentioned.
+* `RESOURCE_NAME` Kind of resource which referenced the issue. Can be a commit or merge request.
+* `PROJECT_NAME` GitLab project name.
+* `ENTITY_TITLE` Merge request title or commit message first line.
+
+![example of mentioning or closing the JIRA issue](img/jira_issue_reference.png)
+
+---
+
+### Closing JIRA Issues
+
+JIRA issues can be closed directly from GitLab by using trigger words, eg.
+`Resolves PROJECT-1`, `Closes PROJECT-1` or `Fixes PROJECT-1`, in commits and
+merge requests. When a commit which contains the trigger word in the commit
+message is pushed, GitLab will add a comment in the mentioned JIRA issue.
+
+For example, for project named `PROJECT` in JIRA, we implemented a new feature
+and created a merge request in GitLab.
+
+This feature was requested in JIRA issue `PROJECT-7`. Merge request in GitLab
+contains the improvement and in merge request description we say that this
+merge request `Closes PROJECT-7` issue.
+
+Once this merge request is merged, the JIRA issue will be automatically closed
+with a link to the commit that resolved the issue.
+
+![A Git commit that causes the JIRA issue to be closed](img/jira_merge_request_close.png)
+
+---
+
+![The GitLab integration user leaves a comment on JIRA](img/jira_service_close_issue.png)
+
+---
+
+## Configuration
+
+### Configuring JIRA
+
+We need to create a user in JIRA which will have access to all projects that
+need to integrate with GitLab. Login to your JIRA instance as admin and under
+Administration go to User Management and create a new user.
+
+As an example, we'll create a user named `gitlab` and add it to `JIRA-developers`
+group.
+
+**It is important that the user `GitLab` has write-access to projects in JIRA**
+
+We have split this stage in steps so it is easier to follow.
+
+---
+
+1. Login to your JIRA instance as an administrator and under **Administration**
+   go to **User Management** to create a new user.
+
+     ![JIRA user management link](img/jira_user_management_link.png)
+
+     ---
+
+1. The next step is to create a new user (e.g., `gitlab`) who has write access
+   to projects in JIRA. Enter the user's name and a _valid_ e-mail address
+   since JIRA sends a verification e-mail to set-up the password.
+   _**Note:** JIRA creates the username automatically by using the e-mail
+   prefix. You can change it later if you want._
+
+     ![JIRA create new user](img/jira_create_new_user.png)
+
+     ---
+
+1. Now, let's create a `gitlab-developers` group which will have write access
+   to projects in JIRA. Go to the **Groups** tab and select **Create group**.
+
+     ![JIRA create new user](img/jira_create_new_group.png)
+
+     ---
+
+     Give it an optional description and hit **Create group**.
+
+     ![jira create new group](img/jira_create_new_group_name.png)
+
+     ---
+
+1. Give the newly-created group write access by going to
+   **Application access > View configuration** and adding the `gitlab-developers`
+   group to JIRA Core.
+
+     ![JIRA group access](img/jira_group_access.png)
+
+     ---
+
+1. Add the `gitlab` user to the `gitlab-developers` group by going to
+   **Users > GitLab user > Add group** and selecting the `gitlab-developers`
+   group from the dropdown menu. Notice that the group says _Access_ which is
+   what we aim for.
+
+     ![JIRA add user to group](img/jira_add_user_to_group.png)
+
+---
+
+The JIRA configuration is over. Write down the new JIRA username and its
+password as they will be needed when configuring GitLab in the next section.
+
+### Configuring GitLab
+
+JIRA configuration in GitLab is done via a project's **Services**.
+
+#### GitLab 8.13.0 with JIRA v1000.x
+
+To enable JIRA integration in a project, navigate to the project's
+and open the context menu clicking on the top right gear icon, then go to
+**Services > JIRA**.
+
+Fill in the required details on the page as described in the table below.
+
+| Field | Description |
+| ----- | ----------- |
+| `URL` | The base URL to the JIRA project which is being linked to this GitLab project. Ex. https://JIRA.example.com |
+| `Project key` | The short, all capital letter identifier for your JIRA project. |
+| `Username` | The user name created in [configuring JIRA step](#configuring-JIRA). |
+| `Password` |The password of the user created in [configuring JIRA step](#configuring-JIRA). |
+| `JIRA issue transition` | This is the ID of a transition that moves issues to a closed state. You can find this number under JIRA workflow administration ([see screenshot](img/jira_workflow_screenshot.png)). |
+
+After saving the configuration, your GitLab project will be able to interact
+with the linked JIRA project.
+
+![JIRA service page](img/jira_service_page.png)
+
+---
+
+#### GitLab 6.x-7.7 with JIRA v6.x
+
+_**Note:** GitLab versions 8.13.0 and up contain various integration improvements.
+We strongly recommend upgrading._
+
+In `gitlab.yml` enable the JIRA issue tracker section by
+[uncommenting these lines][JIRA-gitlab-yml]. This will make sure that all
+issues within GitLab are pointing to the JIRA issue tracker.
+
+After you set this, you will be able to close issues in JIRA by a commit in
+GitLab.
+
+Go to your project's **Settings** page and fill in the project name for the
+JIRA project:
+
+![Set the JIRA project name in GitLab to 'NEW'](img/jira_project_name.png)
+
+---
+
+You can also enable the JIRA service that will allow you to interact with JIRA
+issues. Go to the **Settings > Services > JIRA** and:
+
+1. Tick the active check box to enable the service
+1. Supply the URL to JIRA server, for example http://JIRA.example.com
+1. Supply the username of a user we created under `Configuring JIRA` section,
+   for example `gitlab`
+1. Supply the password of the user
+1. Optional: supply the JIRA API version, default is version `2`
+1. Optional: supply the JIRA issue transition ID (issue transition to closed).
+   This is dependent on JIRA settings, default is `2`
+1. Hit save
+
+
+![JIRA services page](img/jira_service.png)
+
+[services-templates]: ../project_services/services_templates.md
+[JIRA-gitlab-yml]: https://gitlab.com/subscribers/gitlab-ee/blob/6-8-stable-ee/config/gitlab.yml.example#L111-115