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