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