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