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