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