ebpf docker localGPT ovs kubeadm openvSwitch ubuntu libvirt yt-dlp bpf_trace_printk vagrant-libvirt 쿠버네티스 인증서 BPF 도커 ovpn libvirt-vagrant net-scripts ceph-osd nvidia-smi jaeger-ceph uprobe vagrant 리눅스설정 klosedstack dns 도커 레지스트리 bind9 x509 ceph nvcc