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