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Brenner-Bot 8a8b0053ca 🎉 Release of add-on Cloudflared 0.4.0

2022-02-05 15:18:07 +00:00

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Home Assistant Add-on: Cloudflared

Cloudflared connects your Home Assistant Instance via a secure tunnel to a domain or subdomain at Cloudflare. Doing that, you can expose your Home Assitant to the Internet without opening ports in your router. Additionally, you can utilize Cloudflare Teams, their Zero Trust platform to further secure your Home Assistant connection.

To use this add-on, you have to own a domain name (e.g. example.com) and use the DNS servers of Cloudflare. If you do not have one, you can get one for free at Freenom following this article.

Disclaimer

Please make sure to be compliant with the Cloudflare Self-Serve Subscription Agreement when using this add-on. Especially section 2.8 could be breached when mainly streaming videos or other Non-HTML content.

Quick Tunnel for Testing

You can get started with zero setup by using Cloudflare Quick Tunnels.

See below for the detailed configuration.

Please note that it is not recommended to use the quick tunnel for production use since the URL can change anytime.

Installation

The installation of this add-on is pretty straightforward but requires some prerequisites and a manual step at the first set-up.

Before starting, please make sure to remove all other add-ons or configuration entries handling SSL certificates, domain names and so on (e.g. DuckDNS) and restart your HomeAssistant instance.

(Optional if you don't yet have a working Cloudflare set-up): Get a domain name and set-up Cloudflare. See section Domain Name and Cloudlfare Set-Up for details.
Add the http integration settings to your HA-config as described below.
Set the external_hostname add-on option with your domain name or a subdomain that you want to use to access Home Assistant.
(Optional) Change the tunnel_name add-on option (default: homeassistant).
(Optional) Add additional hosts to forward to in the additional_hosts array (see detailed description below).
Any existing DNS entries matching your defined external_hostname and additional_hosts will be overridden at Cloudflare.
(Optional) Add a catch_all_service to forward all other hosts to a URL (see detailed description below).
(Optional) Add the nginx_proxy_manager flag to use the Cloudflare tunnel with the Nginxproxymanager add-on (see detailed description below).
Start the "Cloudflare" add-on. Any existing DNS entries matching your defined external_hostname and additional_hosts will be overridden at Cloudflare.
Check the logs of the "Cloudflare" add-on and follow the instruction to authenticate at Cloudflare. You need to copy a URL from the logs and visit it to authenticate.
A tunnel and a DNS entry will be created and show up in your Cloudflare DNS / Teams dashboard.

Configuration

Configuration.yaml

Since HomeAssistant blocks requests from proxies / reverse proxies, you have to tell your instance to allow requests from the Cloudflared Add-on. The add-on runs locally, so HA has to trust the docker network. In order to do so, add the following lines to your /config/configuration.yaml and restart your HA instance. (if you need assistance changing the config, please follow the Advanced Configuration Tutorial):

Note: Remember to restart Home Assistance when the configuration is changed.

http:
  use_x_forwarded_for: true
  trusted_proxies:
    - 172.30.33.0/24

Add-on Configuration

Note: Remember to restart the add-on when the configuration is changed.

Example basic add-on configuration:

external_hostname: "ha.example.com"
tunnel_name: "homeassistant"
additional_hosts: []

Example extended add-on configuration:

external_hostname: "ha.example.com"
tunnel_name: "homeassistant"
additional_hosts:
  - hostname: "router.example.com"
    service: "http://192.168.1.1"
  - hostname: "diskstation.example.com"
    service: "https://192.168.1.2:5001"
  - hostname: "website.example.com"
    service: "http://192.168.1.3:8080"
    disableChunkedEncoding: true
nginx_proxy_manager: true
log_level: "debug"

Note: This is just an example, don't copy and paste it! Create your own!

Option: `additional_hosts`

You can use the internal reverse proxy of Cloudflare Tunnel to define additional hosts next to home assistant. That way, you can use the tunnel to also access other systems like a diskstation, router or anything else.

Like with the external_hostname of HomeAssistant, DNS entries at will be automatically created at Cloudflare.

Add the (optional) disableChunkedEncoding option to a hostname, to disable chunked transfer encoding. This is useful if you are running a WSGI server, like Proxmox for example. Visit Cloudflare Docs for further information.

Please find below an examplary entry for two additional hosts:

additional_hosts:
  - hostname: "router.example.com"
    service: "http://192.168.1.1"
  - hostname: "diskstation.example.com"
    service: "https://192.168.1.2:5001"
  - hostname: "website.example.com"
    service: "http://192.168.1.3:8080"
    disableChunkedEncoding: true

Note: If you delete a hostname from the list, it will not be served anymore. Nevertheless, you should also manually delete the DNS entry from Cloudflare since it can not be deleted by the Add-on.

Option: `catch_all_service`

If you want to forward all requests from any hostnames not defined in the external_hostname or the additional_hosts, you can use this option and define a URL to forward to. For example, this can be used for reverse proxies.

Note: If you want to use the HA add-on Nginx Proxy Manager as reverse proxy, you should set the flag nginx_proxy_manager (see below) and not use this option.

catch_all_service: "http://192.168.1.100"

Note: This will still route your defined external_hostnameto HomeAssistant as well as any potential additional_hosts to where you defined in the config. Any other incoming traffic will be routed to the defined service.

In order to route hostnames through the tunnel, you have to create individual CNAME records in Cloudflare for all of them, pointing to your external_hostname or directly to the tunnel URL that you can get from the CNAME entry of external_hostname.

Option: `nginx_proxy_manager`

If you want to use the Cloudflare Tunnel with the Add-on Nginx Proxy Manager, you can do so by setting this option. It will automatically set the catch_all_service to the internal URL of Nginx Proxy Manager. You do not have to add the option catch_all_service to your config (if you add it anyways, it will be ignored).

nginx_proxy_manager: true

Note: As with catch_all_service, this will still route your defined external_hostnameto HomeAssistant as well as any potential additional_hosts to where you defined in the config. Any other incoming traffic will be routed to Nginx Proxy Manager.

Finally, you have to set-up your proxy hosts in Nginx Proxy Manager and forward them to wherever you like.

Option: `quick_tunnel`

You can get started with zero setup by using Cloudflare Quick Tunnels. Set quick_tunnel to true , all other configuration will be ignored. After starting the addon check the logs for your unique randomly generated trycloudflare.com URL. Please note that you still have to add the http integration settings to your HA-config as described here.

Quick Tunnel add-on configuration:

quick_tunnel: true
external_hostname: ""
tunnel_name: ""
additional_hosts: []

Option: `log_level`

The log_level option controls the level of log output by the addon and can be changed to be more or less verbose, which might be useful when you are dealing with an unknown issue.

log_level: debug

Possible values are:

trace: Show every detail, like all called internal functions.
debug: Shows detailed debug information.
info: Normal (usually) interesting events.
warning: Exceptional occurrences that are not errors.
error: Runtime errors that do not require immediate action.
fatal: Something went terribly wrong. Add-on becomes unusable.

Please note that each level automatically includes log messages from a more severe level, e.g., debug also shows info messages. By default, the log_level is set to info, which is the recommended setting unless you are troubleshooting.

Option: `reset_cloudflared_files`

In case something went wrong or you want to reset your Cloudflare tunnel for some other reason (e.g., switch to another Cloudflare account), you can reset all your local Cloudflare files by setting this option to true.

reset_cloudflared_files: true

Note: After deleting the files, the option reset_cloudflared_files will automaticaly be removed from the add-on configuration.

Domain Name and Cloudlfare Set-Up

To use this plugin, you need a domain name that is using Cloudflare for its DNS entries.

Domain Name

If you do not already have a domain name, get one. You can get one at Freenom following this article.

Cloudflare

Create a free Cloudflare Account at cloudflare.com and follow the tutorial Getting started with Cloudflare.

Authors & contributors

The original setup of this repository is by Tobias Brenner.

License

MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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