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