Updated Collabora Integration (markdown)

Collabora-Integration.md

@@ -45,3 +45,34 @@ docker-compose up -d
 **2.) with the correct configuration on your firewall allowing your server to access itself via it's external address** 
 
 Out of scope of this article.
+
+**3.) Actions to convert editable files to PDF or PNG need some extra Settings - same is valid for the checkbox to merge file as PDF** 
+
+This function from Collabora SDK API uses a different data access than usual when opening and saving documents from filemanager. Therefore, further configuration settings are usually necessary. However, it always depends on the environment and can be different.
+
+Find out the EGroupware Docker Network:
+
+docker network inspect egroupware-docker_default | grep Subnet
+=>
+“Subnet”: “172.19.0.0/16”,
+
+In
+/var/lib/egroupware/loolwsd/loolwsd.xml
+
+add under
+<net desc="Network settings">
+
+two lines:
+
+<host desc="The IPv6 loopback (localhost) address.">172\.19\.[0-9]{1,3}\.[0-9]{1,3}</host>
+<host desc="The IPv6 loopback (localhost) address.">::ffff:172\.19\.[0-9]{1,3}\.[0-9]{1,3}</host>
+Add in
+/etc/egroupware-docker/docker-egroupware.override.yml
+
+under
+
+   environment:
+configure
+
+extra_hosts:
+- "sub.domain.tld:172.17.0.1"