Hey folks!
Merry Christmas 
Iām using nextcloud 11 on my Debian8 server with Nginx.
I installed collabora docker with this tutorial: https://icewind.nl/entry/collabora-online
If I would like to edit a document, I get an ānot availableā error. 
root@debian:/# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9ac778b39717 collabora/code "/bin/sh -c 'bash sta" About a minute ago Up 39 seconds 127.0.0.1:9980->9980/tcp cocky_lamport
Nginx config file
server {
listen 12345 ssl http2;
server_name domain.com;
[ā¦] here are more nextcloud parts [ā¦]
# static files
location ^~ /loleaflet {
proxy_pass https://localhost:9980;
proxy_set_header Host $http_host;
}
# WOPI discovery URL
location ^~ /hosting/discovery {
proxy_pass https://localhost:9980;
proxy_set_header Host $http_host;
}
# websockets, download, presentation and image upload
location ^~ /lool {
proxy_pass https://localhost:9980;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_set_header Host $http_host;
}
[details=ufw status]ufw status
Status: active
To Action From
-- ------ ----
...
9980/tcp ALLOW Anywhere
9980/tcp ALLOW Anywhere (v6)
...
[/details]
[details=netstat -lnpt] netstat -lnpt
Aktive Internetverbindungen (Nur Server)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:9980 0.0.0.0:* LISTEN 591/docker-proxy
[/details]
Anybody an idea to solve this problem? Thanks for your support!
EDIT#1: more informations:
docker started with user āweb2ā
āweb2ā is the owner of the web root and nextcloud instance
āweb2ā is member of the groupe ādockerā
EDIT#2:
If I open the URL https://domain.com:12345/hosting/discovery, I get the XML file
[details=XML-File]
[/details]
EDIT#3:
Ok, from now on I got a new error message: āaccess forbiddenā.
Think its prob to do with this line in Apache error log but not sure why or what permission is being denied.