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