#5085 Cannot add cluster servers under 1.870
I cannot add additional cluster webmin servers to an existing cluster with webmin 1.870. All servers are running the same version. Existing servers show as clustered, and clustered commands (e.g. upgrade webmin) work as expected.
In Webmin Servers Index, I have successfully scanned for and found new servers. They are configured as follows:
SSL Server - Yes
Check remote SSL Cert - No
Member of server groups - Blank (I don't use groups)
Login via webmin with username/password - configured
Perform fast RPC Calls - Yes.
Going to the Webmin Cluster Servers page, I select either of the newly-discovered servers from the drop-down list and click "Add Server" - nothing happens. I have enabled debug logging for this module - when the Add Server button is clicked, nothing at all happens in the log. It is as if the button click is not seen at all.
Futher info - I've tried webmin running on both OpenSuSE Tumbleweed (upgraded from 1.850) and Debian Jessie (both upgraded from 1.850 and a fresh install of 1.870) with the same result.
Removing existing servers from the cluster also fails. It seems that no changes to cluster membership are possible, and nothing is logged in the debug logs for the Cluster Webmin Servers module to suggest why.
This is a UI bug - you can work around it by switching to the older Grey Framed Theme. It will be properly fixed in the next release.