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