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