I recently posted 2 questions in the old lxd forum and felt kind of silence regarding my questions not being answered… today I discovered this new forum so I am hoping to get an answer as I am really stuck at this point!
On my lxd server When I run the following (which I copied from the documentation)
sudo lxc query --request POST /1.0/instances --data '{
"name": "ubuntu-container",
"source": {
"alias": "22.04",
"protocol": "simplestreams",
"server": "https://cloud-images.ubuntu.com/releases",
"type": "image"
}
}'
I get the following error:
Error: Cluster notification isn't using trusted server certificate
GET requests seems to work fine though 
I am really stuck for days and I could not get any progress, I would appreciate any help 