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