Starting with version 2.5.8 the option to edit the YAML is available. Ideally, take into account an update of the Rancher Management System to that version - better 2.6.3. This can be processed by updating the existing system or setting up a new one and manually provide the configuration on the new system congruent to the old one. Regarding the update procedure follow the guidelines here:
In version 2.5.7, the usage of public Helm chart repositories that were not working on clusters behind a proxy has been fixed, too #29961.
Beyond the WebUI, there is an option to inject directive:
insecure-skip-tls-verify: true
via CLI into the corresponding chart repo of Rancher Management System running in namespace:
cattle-system
This can be done by launching a shell in the WebUI to interact with the Rancher Management system running on K8s as well. Do this on the following cluster where the Rancher Management cluster is running:
local
Just press “Launch kubectl” on the according cluster dashboard. Which commands you need to execute to adjust the chart repo config will follow next week.
Whether this step will finally help to let the chart repository work even in Rancher 2.5.5 needs to be checked. Probably, there is no other option than switching to a higher version - ideally 2.6.3. It’s the actual GA version.