Cloudflare tunnel with docker issues

Zero Trust Cloudflare Tunnel
1

Hi everyone, total noob here.

I am running portainer on a raspberry pi 5, and I have the following containers running:

  1. nextcloud with IP 172.19.0.2 [5443:443]
  2. nextcloud_db with IP 172.19.0.3 [-]
  3. portainer with IP 172.17.0.2 [9000:9000, 9443:9443]
  4. cloudflared:latest with IP 172.19.0.5 [-]

They are all connected to one user-made bridged network called crossnet.

I have configured a tunnel by using the cloudflare recommended process for Docker, and the status of the tunnel is “HEALTHY” in the dashboard.

My tunnel is configured as nextcloud.mydomain.com | Type: HTTPS and URL is 172.19.0.2:5443

No matter what I do, the website doesn’t load and the only way for me to access nextcloud is by going to https://192.168.0.22:5443 in my browser…

I apologize in advance for my lack of knowledge - I’ve researched to the best of my ability and tried everything I could to no avail. Please help if you are able. Thank you!

5

Hi @reggie12

Where is Cloudflared installed? On the container or on the host machine? Have you tried using 192.168.0.22:5443 in the private network tab for your tunnel on the Cloudflare Tunnels dashboard? It is required to add the private IP of the service you want to broadcast over the Internet so Cloudflare knows where to reach out for your resources.

CJ24N