Merge branch 'docs-ssot-pages' into 'master'

Docs: ssot epic - Pages

Closes #58178 and #61517

See merge request gitlab-org/gitlab-ce!29144

doc/user/project/pages/getting_started_part_four.md

 ---
-last_updated: 2018-02-16
-author: Marcia Ramos
-author_gitlab: marcia
-level: intermediate
-article_type: user guide
-date: 2017-02-22
+last_updated: 2019-06-04
+type: reference, howto
 ---
 
 # Creating and Tweaking GitLab CI/CD for GitLab Pages

doc/user/project/pages/getting_started_part_one.md

 ---
-last_updated: 2018-02-16
+last_updated: 2018-06-04
+type: concepts, reference
 ---
 
 # Static sites and GitLab Pages domains

doc/user/project/pages/getting_started_part_three.md

 ---
-last_updated: 2018-11-19
-author: Marcia Ramos
-author_gitlab: marcia
-level: beginner
-article_type: user guide
-date: 2017-02-22
+last_updated: 2019-06-04
+type: concepts, reference, howto
 ---
 
 # GitLab Pages custom domains and SSL/TLS Certificates

doc/user/project/pages/getting_started_part_two.md

 ---
-last_updated: 2019-03-05
-author: Marcia Ramos
-author_gitlab: marcia
-level: beginner
-article_type: user guide
-date: 2017-02-22
+last_updated: 2019-06-04
+type: reference, howto
 ---
 
 # Projects for GitLab Pages and URL structure
@@ -13,11 +9,11 @@ date: 2017-02-22
 
 To get started with GitLab Pages, you need:
 
-1. A project
-1. A configuration file (`.gitlab-ci.yml`) to deploy your site
+1. A project, thus a repository to hold your website's codebase.
+1. A configuration file (`.gitlab-ci.yml`) to deploy your site.
 1. A specific `job` called `pages` in the configuration file
-   that will make GitLab aware that you are deploying a GitLab Pages website
-1. A `public` directory with the content of the website
+   that will make GitLab aware that you are deploying a GitLab Pages website.
+1. A `public` directory with the static content of the website.
 
 Optional Features:
 
@@ -140,7 +136,7 @@ where you'll find its default URL.
   repository to you local computer and moving your site files into it,
   you can run `git init` in your local website directory, add the
   remote URL: `git remote add origin git@gitlab.com:namespace/project-name.git`,
-  then add, commit, and push.
+  then add, commit, and push to GitLab.
 
 ## URLs and Baseurls
 
@@ -173,4 +169,4 @@ baseurl: ""
 ## Custom Domains
 
 GitLab Pages supports custom domains and subdomains, served under HTTP or HTTPS.
-Please check the [next part](getting_started_part_three.md) of this series for an overview.
+See [GitLab Pages custom domains and SSL/TLS Certificates](getting_started_part_three.md) for more information.

doc/user/project/pages/index.md

 ---
 description: 'Learn how to use GitLab Pages to deploy a static website at no additional cost.'
-last_updated: 2019-03-05
+last_updated: 2019-06-04
+type: index, reference
 ---
 
 # GitLab Pages
@@ -140,7 +141,7 @@ To learn more about configuration options for GitLab Pages, read the following:
 | [Static websites and Pages domains](getting_started_part_one.md) | Understand what is a static website, and how GitLab Pages default domains work. |
 | [Projects and URL structure](getting_started_part_two.md) | Forking projects and creating new ones from scratch, understanding URLs structure and baseurls. |
 | [GitLab CI/CD for GitLab Pages](getting_started_part_four.md) | Understand how to create your own `.gitlab-ci.yml` for your site. |
-| [Exploring GitLab Pages](introduction.md) | Technical aspects, specific configuration options, custom 404 pages, limitations. |
+| [Exploring GitLab Pages](introduction.md) | Requirements, technical aspects, specific GitLab CI's configuration options, custom 404 pages, limitations, FAQ. |
 |---+---|
 | [Custom domains and SSL/TLS Certificates](getting_started_part_three.md) | How to add custom domains and subdomains to your website, configure DNS records and SSL/TLS certificates. |
 | [CloudFlare certificates](https://about.gitlab.com/2017/02/07/setting-up-gitlab-pages-with-cloudflare-certificates/) | Secure your Pages site with CloudFlare certificates. |

doc/user/project/pages/introduction.md

+---
+type: reference
+last_updated: 2018-06-04
+---
+
 # Exploring GitLab Pages
 
 This document is a user guide to explore the options and settings
@@ -10,7 +15,7 @@ To familiarize yourself with GitLab Pages first:
 - Learn how to enable GitLab Pages
 across your GitLab instance on the [administrator documentation](../../../administration/pages/index.md).
 
-## Pages requirements
+## GitLab Pages requirements
 
 In brief, this is what you need to upload your website in GitLab Pages:
 
@@ -34,6 +39,99 @@ If you are using [GitLab Pages on GitLab.com](#gitlab-pages-on-gitlabcom) to hos
 
 Visit the [GitLab Pages group](https://gitlab.com/groups/pages) for a complete list of example projects. Contributions are very welcome.
 
+## Custom error codes Pages
+
+You can provide your own 403 and 404 error pages by creating the `403.html` and
+`404.html` files respectively in the root directory of the `public/` directory
+that will be included in the artifacts. Usually this is the root directory of
+your project, but that may differ depending on your static generator
+configuration.
+
+If the case of `404.html`, there are different scenarios. For example:
+
+- If you use project Pages (served under `/projectname/`) and try to access
+  `/projectname/non/existing_file`, GitLab Pages will try to serve first
+  `/projectname/404.html`, and then `/404.html`.
+- If you use user/group Pages (served under `/`) and try to access
+  `/non/existing_file` GitLab Pages will try to serve `/404.html`.
+- If you use a custom domain and try to access `/non/existing_file`, GitLab
+  Pages will try to serve only `/404.html`.
+
+## Redirects in GitLab Pages
+
+Since you cannot use any custom server configuration files, like `.htaccess` or
+any `.conf` file, if you want to redirect a page to another
+location, you can use the [HTTP meta refresh tag][metarefresh].
+
+Some static site generators provide plugins for that functionality so that you
+don't have to create and edit HTML files manually. For example, Jekyll has the
+[redirect-from plugin](https://github.com/jekyll/jekyll-redirect-from).
+
+## GitLab Pages Access Control **[CORE ONLY]**
+
+> [Introduced](https://gitlab.com/gitlab-org/gitlab-ce/issues/33422) in GitLab 11.5.
+
+NOTE: **Note:**
+GitLab Pages access control is not activated on GitLab.com. You can check its
+progress on the
+[infrastructure issue tracker](https://gitlab.com/gitlab-com/gl-infra/infrastructure/issues/5576).
+
+You can enable Pages access control on your project, so that only
+[members of your project](../../permissions.md#project-members-permissions)
+(at least Guest) can access your website:
+
+1. Navigate to your project's **Settings > General > Permissions**.
+1. Toggle the **Pages** button to enable the access control.
+
+    NOTE: **Note:**
+    If you don't see the toggle button, that means that it's not enabled.
+    Ask your administrator to [enable it](../../../administration/pages/index.md#access-control).
+
+1. The Pages access control dropdown allows you to set who can view pages hosted
+   with GitLab Pages, depending on your project's visibility:
+
+    - If your project is private:
+      - **Only project members**: Only project members will be able to browse the website.
+      - **Everyone**: Everyone, both logged into and logged out of GitLab, will be able to browse the website, no matter their project membership.
+    - If your project is internal:
+      - **Only project members**: Only project members will be able to browse the website.
+      - **Everyone with access**: Everyone logged into GitLab will be able to browse the website, no matter their project membership.
+      - **Everyone**: Everyone, both logged into and logged out of GitLab, will be able to browse the website, no matter their project membership.
+    - If your project is public:
+      - **Only project members**: Only project members will be able to browse the website.
+      - **Everyone with access**: Everyone, both logged into and logged out of GitLab, will be able to browse the website, no matter their project membership.
+
+1. Click **Save changes**.
+
+---
+
+The next time someone tries to access your website and the access control is
+enabled, they will be presented with a page to sign into GitLab and verify they
+can access the website.
+
+## Unpublishing your Pages
+
+If you ever feel the need to purge your Pages content, you can do so by going
+to your project's settings through the gear icon in the top right, and then
+navigating to **Pages**. Hit the **Remove pages** button and your Pages website
+will be deleted.
+
+![Remove pages](img/remove_pages.png)
+
+## Limitations
+
+When using Pages under the general domain of a GitLab instance (`*.example.io`),
+you _cannot_ use HTTPS with sub-subdomains. That means that if your
+username/groupname contains a dot, for example `foo.bar`, the domain
+`https://foo.bar.example.io` will _not_ work. This is a limitation of the
+[HTTP Over TLS protocol][rfc]. HTTP pages will continue to work provided you
+don't redirect HTTP to HTTPS.
+
+[rfc]: https://tools.ietf.org/html/rfc2818#section-3.1 "HTTP Over TLS RFC"
+
+GitLab Pages [does **not** support group websites for subgroups](../../group/subgroups/index.md#limitations).
+You can only create the highest-level group website.
+
 ## Specific configuration options for Pages
 
 Learn how to set up GitLab CI/CD for specific use cases.
@@ -208,99 +306,6 @@ NOTE: **Note:**
 When `public/data/index.html` exists, it takes priority over the `public/data.html`
 file for both the `/data` and `/data/` URL paths.
 
-### Custom error codes pages
-
-You can provide your own 403 and 404 error pages by creating the `403.html` and
-`404.html` files respectively in the root directory of the `public/` directory
-that will be included in the artifacts. Usually this is the root directory of
-your project, but that may differ depending on your static generator
-configuration.
-
-If the case of `404.html`, there are different scenarios. For example:
-
-- If you use project Pages (served under `/projectname/`) and try to access
-  `/projectname/non/existing_file`, GitLab Pages will try to serve first
-  `/projectname/404.html`, and then `/404.html`.
-- If you use user/group Pages (served under `/`) and try to access
-  `/non/existing_file` GitLab Pages will try to serve `/404.html`.
-- If you use a custom domain and try to access `/non/existing_file`, GitLab
-  Pages will try to serve only `/404.html`.
-
-### Redirects in GitLab Pages
-
-Since you cannot use any custom server configuration files, like `.htaccess` or
-any `.conf` file, if you want to redirect a page to another
-location, you can use the [HTTP meta refresh tag][metarefresh].
-
-Some static site generators provide plugins for that functionality so that you
-don't have to create and edit HTML files manually. For example, Jekyll has the
-[redirect-from plugin](https://github.com/jekyll/jekyll-redirect-from).
-
-### GitLab Pages Access Control **[CORE ONLY]**
-
-> [Introduced](https://gitlab.com/gitlab-org/gitlab-ce/issues/33422) in GitLab 11.5.
-
-NOTE: **Note:**
-GitLab Pages access control is not activated on GitLab.com. You can check its
-progress on the
-[infrastructure issue tracker](https://gitlab.com/gitlab-com/gl-infra/infrastructure/issues/5576).
-
-You can enable Pages access control on your project, so that only
-[members of your project](../../permissions.md#project-members-permissions)
-(at least Guest) can access your website:
-
-1. Navigate to your project's **Settings > General > Permissions**.
-1. Toggle the **Pages** button to enable the access control.
-
-    NOTE: **Note:**
-    If you don't see the toggle button, that means that it's not enabled.
-    Ask your administrator to [enable it](../../../administration/pages/index.md#access-control).
-
-1. The Pages access control dropdown allows you to set who can view pages hosted
-   with GitLab Pages, depending on your project's visibility:
-
-    - If your project is private:
-      - **Only project members**: Only project members will be able to browse the website.
-      - **Everyone**: Everyone, both logged into and logged out of GitLab, will be able to browse the website, no matter their project membership.
-    - If your project is internal:
-      - **Only project members**: Only project members will be able to browse the website.
-      - **Everyone with access**: Everyone logged into GitLab will be able to browse the website, no matter their project membership.
-      - **Everyone**: Everyone, both logged into and logged out of GitLab, will be able to browse the website, no matter their project membership.
-    - If your project is public:
-      - **Only project members**: Only project members will be able to browse the website.
-      - **Everyone with access**: Everyone, both logged into and logged out of GitLab, will be able to browse the website, no matter their project membership.
-
-1. Click **Save changes**.
-
----
-
-The next time someone tries to access your website and the access control is
-enabled, they will be presented with a page to sign into GitLab and verify they
-can access the website.
-
-## Unpublishing your Pages
-
-If you ever feel the need to purge your Pages content, you can do so by going
-to your project's settings through the gear icon in the top right, and then
-navigating to **Pages**. Hit the **Remove pages** button and your Pages website
-will be deleted.
-
-![Remove pages](img/remove_pages.png)
-
-## Limitations
-
-When using Pages under the general domain of a GitLab instance (`*.example.io`),
-you _cannot_ use HTTPS with sub-subdomains. That means that if your
-username/groupname contains a dot, for example `foo.bar`, the domain
-`https://foo.bar.example.io` will _not_ work. This is a limitation of the
-[HTTP Over TLS protocol][rfc]. HTTP pages will continue to work provided you
-don't redirect HTTP to HTTPS.
-
-[rfc]: https://tools.ietf.org/html/rfc2818#section-3.1 "HTTP Over TLS RFC"
-
-GitLab Pages [does **not** support group websites for subgroups](../../group/subgroups/index.md#limitations).
-You can only create the highest-level group website.
-
 ## Frequently Asked Questions
 
 ### Can I download my generated pages?

doc/user/project/pages/lets_encrypt_for_gitlab_pages.md

 ---
 description: "How to secure GitLab Pages websites with Let's Encrypt."
+type: howto
+last_updated: 2019-06-04
 ---
 
 # Let's Encrypt for GitLab Pages