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