Docs: Merge EE doc/​administration/​auth to CE

doc/administration/auth/README.md

@@ -9,9 +9,11 @@ providers.
 
 - [LDAP](ldap.md) Includes Active Directory, Apple Open Directory, Open LDAP,
   and 389 Server
+  - [LDAP for GitLab EE](ldap-ee.md): LDAP additions to GitLab Enterprise Editions **[STARTER ONLY]**
 - [OmniAuth](../../integration/omniauth.md) Sign in via Twitter, GitHub, GitLab.com, Google,
   Bitbucket, Facebook, Shibboleth, Crowd, Azure, Authentiq ID, and JWT
 - [CAS](../../integration/cas.md) Configure GitLab to sign in using CAS
 - [SAML](../../integration/saml.md) Configure GitLab as a SAML 2.0 Service Provider
 - [Okta](okta.md) Configure GitLab to sign in using Okta
 - [Authentiq](authentiq.md): Enable the Authentiq OmniAuth provider for passwordless authentication
+- [Smartcard](smartcard.md) Smartcard authentication **[PREMIUM ONLY]**

doc/administration/auth/how_to_configure_ldap_gitlab_ce/index.md

@@ -14,7 +14,7 @@ Managing a large number of users in GitLab can become a burden for system admini
 
 In this guide we will focus on configuring GitLab with Active Directory. [Active Directory](https://en.wikipedia.org/wiki/Active_Directory) is a popular LDAP compatible directory service provided by Microsoft, included in all modern Windows Server operating systems.
 
-GitLab has supported LDAP integration since [version 2.2](https://about.gitlab.com/2012/02/22/gitlab-version-2-2/). With GitLab LDAP [group syncing](https://docs.gitlab.com/ee/administration/auth/how_to_configure_ldap_gitlab_ee/index.html#group-sync) being added to GitLab Enterprise Edition in [version 6.0](https://about.gitlab.com/2013/08/20/gitlab-6-dot-0-released/). LDAP integration has become one of the most popular features in GitLab.
+GitLab has supported LDAP integration since [version 2.2](https://about.gitlab.com/2012/02/22/gitlab-version-2-2/). With GitLab LDAP [group syncing](../how_to_configure_ldap_gitlab_ee/index.html#group-sync) being added to GitLab Enterprise Edition in [version 6.0](https://about.gitlab.com/2013/08/20/gitlab-6-dot-0-released/). LDAP integration has become one of the most popular features in GitLab.
 
 ## Getting started
 
@@ -111,7 +111,7 @@ The initial configuration of LDAP in GitLab requires changes to the `gitlab.rb`
 
 The two Active Directory specific values are `active_directory: true` and `uid: 'sAMAccountName'`. `sAMAccountName` is an attribute returned by Active Directory used for GitLab usernames. See the example output from `ldapsearch` for a full list of attributes a "person" object (user) has in **AD** - [`ldapsearch` example](#using-ldapsearch-unix)
 
-> Both group_base and admin_group configuration options are only available in GitLab Enterprise Edition. See [GitLab EE - LDAP Features](https://docs.gitlab.com/ee/administration/auth/how_to_configure_ldap_gitlab_ee/index.html#gitlab-enterprise-edition---ldap-features)
+> Both group_base and admin_group configuration options are only available in GitLab Enterprise Edition. See [GitLab EE - LDAP Features](../how_to_configure_ldap_gitlab_ee/index.html#gitlab-enterprise-edition---ldap-features) **[STARTER ONLY]**
 
 ### Example `gitlab.rb` LDAP
 
@@ -267,4 +267,4 @@ have extended functionalities with LDAP, such as:
 - Updating user permissions
 - Multiple LDAP servers
 
-Read through the article on [LDAP for GitLab EE](https://docs.gitlab.com/ee/administration/auth/how_to_configure_ldap_gitlab_ee/) for an overview.
+Read through the article on [LDAP for GitLab EE](../how_to_configure_ldap_gitlab_ee/index.md) **[STARTER ONLY]** for an overview.

doc/administration/auth/how_to_configure_ldap_gitlab_ee/index.md

+---
+author: Chris Wilson
+author_gitlab: MrChrisW
+level: intermediary
+article_type: admin guide
+date: 2017-05-03
+---
+
+# How to configure LDAP with GitLab EE **[STARTER ONLY]**
+
+## Introduction
+
+The present article follows [How to Configure LDAP with GitLab CE](../how_to_configure_ldap_gitlab_ce/index.md). Make sure to read through it before moving forward.
+
+## GitLab Enterprise Edition - LDAP features
+
+[GitLab Enterprise Edition (EE)](https://about.gitlab.com/pricing/) has a number of advantages when it comes to integrating with Active Directory (LDAP):
+
+- [Administrator Sync](../ldap-ee.md#administrator-sync): As an extension of group sync, you can automatically manage your global GitLab administrators. Specify a group CN for `admin_group` and all members of the LDAP group will be given administrator privileges.
+- [Group Sync](#group-sync): This allows GitLab group membership to be automatically updated based on LDAP group members.
+- [Multiple LDAP servers](#multiple-ldap-servers): The ability to configure multiple LDAP servers. This is useful if an organization has different LDAP servers within departments. This is not designed for failover. We're working on [supporting LDAP failover](https://gitlab.com/gitlab-org/gitlab-ee/issues/139) in GitLab.
+
+- Daily user synchronization: Once a day, GitLab will run a synchronization to check and update GitLab users against LDAP. This process updates all user details automatically.
+
+On the following section, you'll find a description for each of these features. Read through [LDAP GitLab EE docs](../ldap-ee.md) for complementary information.
+
+![GitLab OU Structure](img/admin_group.png)
+
+All members of the group `Global Admins` will be given **administrator** access to GitLab, allowing them to view the `/admin` dashboard.
+
+### Group Sync
+
+Group syncing allows AD (LDAP) groups to be mapped to GitLab groups. This provides more control over per-group user management. To configure group syncing edit the `group_base` **DN** (`'OU=Global Groups,OU=GitLab INT,DC=GitLab,DC=org'`). This **OU** contains all groups that will be associated with [GitLab groups](../../../user/group/index.md).
+
+#### Creating group links - example
+
+As an example, let's suppose we have a "UKGov" GitLab group, which deals with confidential government information. Therefore, it is important that users of this group are given the correct permissions to projects contained within the group. Granular group permissions can be applied based on the AD group.
+
+**UK Developers** of our "UKGov" group are given **"developer"** permissions.
+
+_The developer permission allows the development staff to effectively manage all project code, issues, and merge requests._
+
+**UK Support** staff of our "UKGov" group are given **"reporter"** permissions.
+
+_The reporter permission allows support staff to manage issues, labels, and review project code._
+
+**US People Ops** of our "UKGov" group are given **"guest"** permissions.
+
+![Creating group links](img/group_linking.gif)
+
+> Guest permissions allows people ops staff to review and lodge new issues while allowing no read or write access to project code or [confidential issues](../../../user/project/issues/confidential_issues.md#permissions-and-access-to-confidential-issues) created by other users.
+
+See the [permission list](../../../user/permissions.md) for complementary info.
+
+#### Group permissions - example
+
+Considering the previous example, our staff will have
+access to our GitLab instance with the following structure:
+
+![GitLab OU Structure](img/group_link_final.png)
+
+Using this permission structure in our example allows only UK staff access to sensitive information stored in the projects code, while still allowing other teams to work effectively. As all permissions are controlled via AD groups new users can be quickly added to existing groups. New group members will then automatically inherit the required permissions.
+
+> [More information](../ldap-ee.md#group-sync) on group syncing.
+
+### Updating user permissions - new feature
+
+Since GitLab [v8.15](https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/822) LDAP user permissions can now be manually overridden by an admin user. To override a user's permissions visit the groups **Members** page and select **Edit permissions**.
+
+![Setting manual permissions](img/manual_permissions.gif)
+
+### Multiple LDAP servers
+
+GitLab EE can support multiple LDAP servers. Simply configure another server in the `gitlab.rb` file within the `ldap_servers` block. In the example below we configure a new secondary server with the label **GitLab Secondary AD**. This is shown on the GitLab login screen. Large enterprises often utilize multiple LDAP servers for segregating organizational departments.
+
+![Multiple LDAP Servers Login](img/multi_login.gif)
+
+Considering the example illustrated on the image above,
+our `gitlab.rb` configuration would look like:
+
+```ruby
+gitlab_rails['ldap_enabled'] = true
+gitlab_rails['ldap_servers'] = {
+'main' => {
+  'label' => 'GitLab AD',
+  'host' =>  'ad.example.org',
+  'port' => 636,
+  'uid' => 'sAMAccountName',
+  'method' => 'ssl',
+  'bind_dn' => 'CN=GitLabSRV,CN=Users,DC=GitLab,DC=org',
+  'password' => 'Password1',
+  'active_directory' => true,
+  'base' => 'OU=GitLab INT,DC=GitLab,DC=org',
+  'group_base' => 'OU=Global Groups,OU=GitLab INT,DC=GitLab,DC=org',
+  'admin_group' => 'Global Admins'
+  },
+
+'secondary' => {
+  'label' => 'GitLab Secondary AD',
+  'host' =>  'ad-secondary.example.net',
+  'port' => 636,
+  'uid' => 'sAMAccountName',
+  'method' => 'ssl',
+  'bind_dn' => 'CN=GitLabSRV,CN=Users,DC=GitLab,DC=com',
+  'password' => 'Password1',
+  'active_directory' => true,
+  'base' => 'OU=GitLab Secondary,DC=GitLab,DC=com',
+  'group_base' => 'OU=Global Groups,OU=GitLab INT,DC=GitLab,DC=com',
+  'admin_group' => 'Global Admins'
+  }
+}
+```
+
+## Conclusion
+
+Integration of GitLab with Active Directory (LDAP) reduces the complexity of user management.
+It has the advantage of improving user permission controls, whilst easing the deployment of GitLab into an existing [IT environment](https://www.techopedia.com/definition/29199/it-infrastructure). GitLab EE offers advanced group management and multiple LDAP servers.
+
+With the assistance of the [GitLab Support](https://about.gitlab.com/support) team, setting up GitLab with an existing AD/LDAP solution will be a smooth and painless process.

doc/administration/auth/ldap.md

@@ -14,7 +14,7 @@ including group membership syncing as well as multiple LDAP servers support.
 
 The information on this page is relevant for both GitLab CE and EE. For more
 details about EE-specific LDAP features, see the
-[LDAP Enterprise Edition documentation](https://docs.gitlab.com/ee/administration/auth/ldap-ee.html).
+[LDAP Enterprise Edition documentation](ldap-ee.md). **[STARTER ONLY]**
 
 ## Security
 
@@ -39,7 +39,7 @@ immediately block all access.
 
 NOTE: **Note**:
 GitLab Enterprise Edition Starter supports a
-[configurable sync time](https://docs.gitlab.com/ee/administration/auth/ldap-ee.html#adjusting-ldap-user-and-group-sync-schedules),
+[configurable sync time](ldap-ee.md#adjusting-ldap-user-sync-schedule),
 with a default of one hour.
 
 ## Git password authentication
@@ -64,6 +64,7 @@ to connect to one GitLab server.
 
 For a complete guide on configuring LDAP with GitLab Community Edition, please check
 the admin guide [How to configure LDAP with GitLab CE](how_to_configure_ldap_gitlab_ce/index.md).
+For GitLab Enterprise Editions, see also [How to configure LDAP with GitLab EE](how_to_configure_ldap_gitlab_ee/index.md). **[STARTER ONLY]**
 
 To enable LDAP integration you need to add your LDAP server settings in
 `/etc/gitlab/gitlab.rb` or `/home/git/gitlab/config/gitlab.yml` for Omnibus
@@ -388,7 +389,7 @@ group, you can use the following syntax:
 Find more information about this "LDAP_MATCHING_RULE_IN_CHAIN" filter at
 <https://docs.microsoft.com/en-us/windows/desktop/ADSI/search-filter-syntax>. Support for
 nested members in the user filter should not be confused with
-[group sync nested groups support (EE only)](https://docs.gitlab.com/ee/administration/auth/ldap-ee.html#supported-ldap-group-types-attributes).
+[group sync nested groups support](ldap-ee.md#supported-ldap-group-typesattributes). **[STARTER ONLY]**
 
 Please note that GitLab does not support the custom filter syntax used by
 omniauth-ldap.

doc/administration/auth/smartcard.md

+# Smartcard authentication **[PREMIUM ONLY]**
+
+GitLab supports authentication using smartcards.
+
+## Authentication methods
+
+GitLab supports two authentication methods:
+
+- X.509 certificates with local databases.
+- LDAP servers.
+
+### Authentication against a local database with X.509 certificates
+
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-ee/issues/726) in
+[GitLab Premium](https://about.gitlab.com/pricing/) 11.6 as an experimental
+feature. Smartcard authentication against local databases may change or be
+removed completely in future releases.
+
+Smartcards with X.509 certificates can be used to authenticate with GitLab.
+
+To use a smartcard with an X.509 certificate to authenticate against a local
+database with GitLab, `CN` and `emailAddress` must be defined in the
+certificate. For example:
+
+```
+Certificate:
+    Data:
+        Version: 1 (0x0)
+        Serial Number: 12856475246677808609 (0xb26b601ecdd555e1)
+    Signature Algorithm: sha256WithRSAEncryption
+        Issuer: O=Random Corp Ltd, CN=Random Corp
+        Validity
+            Not Before: Oct 30 12:00:00 2018 GMT
+            Not After : Oct 30 12:00:00 2019 GMT
+        Subject: CN=Gitlab User, emailAddress=gitlab-user@example.com
+```
+
+### Authentication against an LDAP server
+
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-ee/issues/7693) in
+[GitLab Premium](https://about.gitlab.com/pricing/) 11.8 as an experimental
+feature. Smartcard authentication against an LDAP server may change or be
+removed completely in future releases.
+
+GitLab implements a standard way of certificate matching following
+[RFC4523](https://tools.ietf.org/html/rfc4523). It uses the
+`certificateExactMatch` certificate matching rule against the `userCertificate`
+attribute. As a prerequisite, you must use an LDAP server that:
+
+- Supports the `certificateExactMatch` matching rule.
+- Has the certificate stored in the `userCertificate` attribute.
+
+## Configure GitLab for smartcard authentication
+
+**For Omnibus installations**
+
+1. Edit `/etc/gitlab/gitlab.rb`:
+
+    ```ruby
+    gitlab_rails['smartcard_enabled'] = true
+    gitlab_rails['smartcard_ca_file'] = "/etc/ssl/certs/CA.pem"
+    gitlab_rails['smartcard_client_certificate_required_port'] = 3444
+    ```
+
+1. Save the file and [reconfigure](../restart_gitlab.md#omnibus-gitlab-reconfigure)
+   GitLab for the changes to take effect.
+
+---
+
+**For installations from source**
+
+1. Configure NGINX to request a client side certificate
+
+   In NGINX configuration, an **additional** server context must be defined with
+   the same configuration except:
+
+   - The additional NGINX server context must be configured to run on a different
+     port:
+
+     ```
+     listen *:3444 ssl;
+     ```
+
+   - The additional NGINX server context must be configured to require the client
+     side certificate:
+
+     ```
+     ssl_verify_depth 2;
+     ssl_client_certificate /etc/ssl/certs/CA.pem;
+     ssl_verify_client on;
+     ```
+
+   - The additional NGINX server context must be configured to forward the client
+     side certificate:
+
+     ```
+     proxy_set_header    X-SSL-Client-Certificate    $ssl_client_escaped_cert;
+     ```
+
+   For example, the following is an example server context in an NGINX
+   configuration file (eg. in `/etc/nginx/sites-available/gitlab-ssl`):
+
+   ```
+   server {
+       listen *:3444 ssl;
+
+       # certificate for configuring SSL
+       ssl_certificate /path/to/example.com.crt;
+       ssl_certificate_key /path/to/example.com.key;
+
+       ssl_verify_depth 2;
+       # CA certificate for client side certificate verification
+       ssl_client_certificate /etc/ssl/certs/CA.pem;
+       ssl_verify_client on;
+
+       location / {
+           proxy_set_header    Host                        $http_host;
+           proxy_set_header    X-Real-IP                   $remote_addr;
+           proxy_set_header    X-Forwarded-For             $proxy_add_x_forwarded_for;
+           proxy_set_header    X-Forwarded-Proto           $scheme;
+           proxy_set_header    Upgrade                     $http_upgrade;
+           proxy_set_header    Connection                  $connection_upgrade;
+
+           proxy_set_header    X-SSL-Client-Certificate    $ssl_client_escaped_cert;
+
+           proxy_read_timeout 300;
+
+           proxy_pass http://gitlab-workhorse;
+       }
+   }
+   ```
+
+1. Edit `config/gitlab.yml`:
+
+   ```yaml
+   ## Smartcard authentication settings
+   smartcard:
+     # Allow smartcard authentication
+     enabled: true
+
+     # Path to a file containing a CA certificate
+     ca_file: '/etc/ssl/certs/CA.pem'
+
+     # Port where the client side certificate is requested by NGINX
+     client_certificate_required_port: 3444
+   ```
+
+1. Save the file and [restart](../restart_gitlab.md#installations-from-source)
+   GitLab for the changes to take effect.
+
+### Additional steps when authenticating against an LDAP server
+
+**For Omnibus installations**
+
+1. Edit `/etc/gitlab/gitlab.rb`:
+
+    ```ruby
+    gitlab_rails['ldap_servers'] = YAML.load <<-EOS
+    main:
+      # snip...
+      # Enable smartcard authentication against the LDAP server. Valid values
+      # are "false", "optional", and "required".
+      smartcard_auth: optional
+    EOS
+    ```
+
+1. Save the file and [reconfigure](../restart_gitlab.md#omnibus-gitlab-reconfigure)
+   GitLab for the changes to take effect.
+
+**For installations from source**
+
+1. Edit `config/gitlab.yml`:
+
+    ```yaml
+    production:
+      ldap:
+        servers:
+          main:
+            # snip...
+            # Enable smartcard authentication against the LDAP server. Valid values
+            # are "false", "optional", and "required".
+            smartcard_auth: optional
+    ```
+
+1. Save the file and [restart](../restart_gitlab.md#installations-from-source)
+   GitLab for the changes to take effect.