Set Up Cloudflare Zero Trust and Home Assistant

Jamison Kissh

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If you’d like to set up and use Cloudflare Tunnels (or Cloudlfare Teams) with Home Assistant this guide should help you get started. It heavily leverages Tobias Brenner’s Cloudflared add-on.

Assumptions

  • Home Assistant OS (not running standalone)
  • Basic knowledge of Add Ons
  • Your domain is set up on Cloudflare Zero Trust

Get Your Tunnel Ready

  1. Head to https://dash.teams.cloudflare.com/ and log in
  2. Expand Access > Tunnels
  3. Click the create tunnel button
  4. Give it a name (it can be anything)
  5. On the connector section note the text that contains a long string of random letters and numbers save this string for later, this is your Cloudflare Tunnel Token
  6. In the public hostname section pick your public hostname and domain
  7. In the service section select HTTP and enter homeassistant:8123 in the URL
  8. Click save

Set Up Home Assistant

  1. Edit your configuration.yaml to inclued the following to allow Home Assistant to function behind the tunnel 
     http:
 use_x_forwarded_for: true
 trusted_proxies:
     - 172.30.33.0/24 # Docker network
  2. Head to Add-Ons and add the repo https://github.com/brenner-tobias/ha-addons
    • Or use this one click URL Open your Home Assistant instance and show the add add-on repository dialog with a specific repository URL pre-filled.

  3. Install the Cloudflared add-on that’s now available in your Add-On Store

    Open your Home Assistant instance and show the Supervisor add-on store.

  4. Once it’s installed, head to the Add-On and the Configuration Tab

    Open your Home Assistant instance and show the dashboard of a Supervisor add-on.

  5. Enter the token you noted from step 5 above in the Cloudflare Tunnel Token box and save your configuration
  6. Go back to the info tab and start the add-on
  7. Monitor the log for a few entries that look like this 
     2023-01-16T21:51:07Z INF Connection f7aea022-bb92-4fa8-98f3-0cde05e55243 registered with protocol: quic connIndex=0 ip=198.41.192.27 location=BOS
 2023-01-16T21:51:08Z INF Connection 84accc1c-27d2-4e29-94fc-40a5ae2f7c3e registered with protocol: quic connIndex=1 ip=198.41.200.53 location=ORD