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