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