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