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