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