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