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