Merge branch 'docs/asset-proxy-docs-moved' into 'master'

Point to main GitLab docs for asset proxy content

See merge request gitlab-org/omnibus-gitlab!3595

doc/README.md

@@ -91,7 +91,7 @@ to work best with the available resources. Check out the [documentation](setting
 - [Pages](https://docs.gitlab.com/ce/pages/administration.html)
 - [SSL](settings/ssl.md)
 - [GitLab and Registry](architecture/registry/README.md)
-- [Configuring an asset proxy server](settings/asset_proxy.md)
+- [Configuring an asset proxy server](https://docs.gitlab.com/ee/security/asset_proxy.html)
 ## Updating

doc/settings/README.md

-# Configuring omnibus settings
-- [Asset proxy server](asset_proxy.md)
+# Configuring Omnibus GitLab
+- [Asset proxy server](https://docs.gitlab.com/ee/security/asset_proxy.html)
 - [Backups](backups.md)
 - [Configuration options](configuration.md)
 - [Database](database.md)
-- [Environment variables](environment-variables.md).
+- [Environment variables](environment-variables.md)
 - [`gitlab.yml`](gitlab.yml.md)
 - [Grafana](grafana.md)
 - [LDAP](ldap.md)

doc/settings/asset_proxy.md

-# Asset proxy with Camo server
-
-GitLab can be configured to use an [asset proxy server](https://docs.gitlab.com/ee/security/asset_proxy)
-when requesting external images/videos in issues, comments, etc. This helps
-ensure that malicious images do not expose the user's IP address when they are fetched.
-
-## Installation
-
-A Camo server is used to act as the proxy. We currently recommend using
-[cactus/go-camo](https://github.com/cactus/go-camo#how-it-works) as it supports proxying video and
-is more configurable.
-
-To install a Camo server as an asset proxy:
-
-1. Deploy a `go-camo` server. Helpful instructions can be found in
-   [building catus/go-camo](https://github.com/cactus/go-camo#building).
-
-1. Make sure your instance of GitLab is running, and that you have created a private API token.
-   Using the API, configure the [asset proxy settings](https://docs.gitlab.com/ee/security/asset_proxy)
-   on your GitLab instance. For example:
-
-    ```sh
-    curl -X "PUT" "https://gitlab.example.com/api/v4/application/settings?\
-    asset_proxy_enabled=true&\
-    asset_proxy_url=https://proxy.gitlab.example.com&\
-    asset_proxy_secret_key=somekey" \
-    -H 'PRIVATE-TOKEN: my-private-token'
-    ```
-
-1. Restart the server for the changes to take effect. Each time you change any values for the asset
-   proxy, you need to restart the server.
-
-## Usage
-
-Once the Camo server is running and you've enabled the GitLab settings, any image or video that
-references an external source will get proxied to the Camo server. For example, the following
-Markdown image:
-
-```markdown
-![logo](https://about.gitlab.com/images/press/logo/jpg/gitlab-icon-rgb.jpg)
-```
-
-The above Markdown would have a source link similar to the following:
-
-```text
-http://proxy.gitlab.example.com/f9dd2b40157757eb82afeedbf1290ffb67a3aeeb/68747470733a2f2f61626f75742e6769746c61622e636f6d2f696d616765732f70726573732f6c6f676f2f6a70672f6769746c61622d69636f6e2d7267622e6a7067
-```