Homeassistant in KVM, can connect to shell, not via browser

Installation
1

After some failed SD cards, I want to move my homeassistant installation from a dedicated Pi to a KVM install.

As host I’m using openSUSE microOS, a few other containers already running on that machine.
I installed libvirt, set up bridge networking and followed the guide to start up homeassistant.
Result: unable to connect via browser to 8123.

But - I can connect to my vm running homeassistant and log in as root.

I am able to do e.g. “curl www.google.de” and it gets a response, so at least outbound networking is fine.

“ha banner” is also working, showing this:

image
image800×567 34.5 KB

But I can’t get a response from HA with curl.

What am i missing?

2

More info:

Access to homeassistant observer is working from my network through http://192.168.0.136:4357
Access to ha itself on http://192.168.0.136:8123 does not

curl on localhost to observer is working, to ha it is not. What am I missing? Do I have to install homeassistant by myself? Is the VM only the base OS?