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