authelia/docs/content/integration/openid-connect/cloudflare-zerotrust/index.md

109 lines
4.3 KiB
Markdown

---
title: "Cloudflare Zero Trust"
description: "Integrating Cloudflare Zero Trust with the Authelia OpenID Connect 1.0 Provider."
summary: ""
date: 2022-06-15T17:51:47+10:00
draft: false
images: []
weight: 620
toc: true
support:
level: community
versions: true
integration: true
seo:
title: "" # custom title (optional)
description: "" # custom description (recommended)
canonical: "" # custom canonical URL (optional)
noindex: false # false (default) or true
---
## Tested Versions
* [Authelia]
* [v4.38.0](https://github.com/authelia/authelia/releases/tag/v4.38.0)
{{% oidc-common %}}
### Assumptions
This example makes the following assumptions:
* __Cloudflare Team Name:__ `example-team`
* __Authelia Root URL:__ `https://{{< sitevar name="subdomain-authelia" nojs="auth" >}}.{{< sitevar name="domain" nojs="example.com" >}}/`
* __Client ID:__ `cloudflare`
* __Client Secret:__ `insecure_secret`
Some of the values presented in this guide can automatically be replaced with documentation variables.
{{< sitevar-preferences >}}
{{< callout context="caution" title="Important Note" icon="outline/alert-triangle" >}}
[Cloudflare Zero Trust](https://www.cloudflare.com/products/zero-trust/) does not properly URL encode the secret per [RFC6749 Appendix B](https://datatracker.ietf.org/doc/html/rfc6749#appendix-B) at the
time this article was last modified (noted at the bottom). This means you'll either have to use only alphanumeric
characters for the secret or URL encode the secret yourself.
{{< /callout >}}
## Configuration
### Authelia
The following YAML configuration is an example __Authelia__ [client configuration] for use with [Cloudflare] which will
operate with the application example:
```yaml {title="configuration.yml"}
identity_providers:
oidc:
## The other portions of the mandatory OpenID Connect 1.0 configuration go here.
## See: https://www.authelia.com/c/oidc
clients:
- client_id: 'cloudflare'
client_name: 'Cloudflare ZeroTrust'
client_secret: '$pbkdf2-sha512$310000$c8p78n7pUMln0jzvd4aK4Q$JNRBzwAo0ek5qKn50cFzzvE9RXV88h1wJn5KGiHrD0YKtZaR/nCb2CJPOsKaPK0hjf.9yHxzQGZziziccp6Yng' # The digest of 'insecure_secret'.
public: false
authorization_policy: 'two_factor'
redirect_uris:
- 'https://example-team.cloudflareaccess.com/cdn-cgi/access/callback'
scopes:
- 'openid'
- 'profile'
- 'email'
userinfo_signed_response_alg: 'none'
```
### Application
{{< callout context="caution" title="Important Note" icon="outline/alert-triangle" >}}
It is a requirement that the Authelia URL's can be requested by Cloudflare's servers. This usually
means that the URLs are accessible to foreign clients on the internet. There may be a way to configure this without
accessibility to foreign clients on the internet on Cloudflare's end, but this is beyond the scope of this document.
{{< /callout >}}
To configure [Cloudflare Zero Trust] to utilize Authelia as an [OpenID Connect 1.0] Provider:
1. Visit the [Cloudflare Zero Trust Dashboard](https://dash.teams.cloudflare.com)
2. Visit `Settings`
3. Visit `Authentication`
4. Under `Login methods` select `Add new`
5. Select `OpenID Connect`
6. Set the following values:
1. Name: `Authelia`
2. App ID: `cloudflare`
3. Client Secret: `insecure_secret`
4. Auth URL: `https://{{< sitevar name="subdomain-authelia" nojs="auth" >}}.{{< sitevar name="domain" nojs="example.com" >}}/api/oidc/authorization`
5. Token URL: `https://{{< sitevar name="subdomain-authelia" nojs="auth" >}}.{{< sitevar name="domain" nojs="example.com" >}}/api/oidc/token`
6. Certificate URL: `https://{{< sitevar name="subdomain-authelia" nojs="auth" >}}.{{< sitevar name="domain" nojs="example.com" >}}/jwks.json`
7. Enable `Proof Key for Code Exchange (PKCE)`
8. Add the following OIDC Claims: `preferred_username`, `mail`
7. Click Save
## See Also
* [Cloudflare Zero Trust Generic OIDC Documentation](https://developers.cloudflare.com/cloudflare-one/identity/idp-integration/generic-oidc/)
[Authelia]: https://www.authelia.com
[Cloudflare]: https://www.cloudflare.com/
[Cloudflare Zero Trust]: https://www.cloudflare.com/products/zero-trust/
[OpenID Connect 1.0]: ../../openid-connect/introduction.md
[client configuration]: ../../../configuration/identity-providers/openid-connect/clients.md