Hi, well I almost got there with the legacy mode but I cant make the ssh connection from Checkmk server. When I console in to the checkmk docker container I can ssh to the home assistant target with the key.
Check_MK fails with [agent] Agent exited with code 255: Host key verification failed.. However I can ssh in from the container as I said, so Executing the Linux agent over ssh - Checkmk Knowledge Base - Checkmk Knowledge Base is not helping much…