default backend - 404 when trying to access Rancher UI

[META-DREAMER]

Hey, using this to setup my Rancher instance with terraform on proxmox. Everything runs fine with Ansible and Terraform, but when I go to the IP address for the rancher VM in my browser I get the following error: default backend - 404. Any idea whats up?

[clayshek]

Hi - I've come across the same periodically. It's the reason I put the 270 sec wait at the end of the Ansible run. Seems like it just takes a bit for Rancher startup to complete, depending on the resources available to the VM. Does it eventually become available if you try a few minutes later? That has been my experience, and the code here still works for me. Can you throw more CPU/RAM at the VM? The 404 at least does indicate the VM is up and Rancher installation has occurred. It's possible that something else is going on with Rancher for you, the below links may help target your troubleshooting.

rancher/rancher#26385

https://rancher.com/docs/rancher/v2.0-v2.4/en/installation/resources/advanced/helm2/rke-add-on/troubleshooting/404-default-backend/

https://rancher.com/docs/rancher/v2.0-v2.4/en/installation/resources/advanced/helm2/helm-rancher/troubleshooting/