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