I was testing the mender docker demo and came along the error
certificate relies on legacy Common Name field, use SANs or temporarily enable Common Name matching with GODEBUG=x509ignoreCN=0
when our device tries to update the inventory data.
I hope I followed the installation guide correctly: Demo installation | Mender documentation
127.0.0.1 s3.docker.mender.io 127.0.0.1 docker.mender.io
to /etc/hosts on the host that is hosting the docker container and I added
192.168.55.100 s3.docker.mender.io 192.168.55.100 docker.mender.io
on the target, otherwise the mender client can not resolve those host names.
But I get the error mentioned above. AFAIK the common name is fully qualified host name - docker.mender.io.
Can anyone give me a hint where my mistake is?