This is a lab environment with example code from the book Learning eBPF by Liz Rice: https://github.com/lizrice/learning-ebpf
A packer configuration was created in the packer folder to build and
configure a Centos 9 stream VM with:
- bcc (https://github.com/iovisor/bcc)
- bpftool (https://github.com/libbpf/bpftool)
- bpftrace (https://github.com/iovisor/bpftrace)
Unfortunately, some blockers (broken functionality, missing features) were encountered pretty early in the eBPF learning process when using the pre-built software from the distribution repositories. Therefore, most recent components are built from the main branch with the idea of a reproducible lab environment.
The Packer build allows to reproduce and develop the Lab image. To create the qemu image with Packer:
cd packer
packer build libvirt-centos9.pkr.hcl
Configure location of qemu image:
qemuimg=output/centos9-20230512-132055/centos9-20230512-132055.qcow2
Create the KVM lab VM:
sudo virt-install --name ebpf-lab --description "eBPF Lab" \
--osinfo=centos-stream9 --ram=4096 --vcpus=2 \
--disk path=$qemuimg --boot hd --wait 0 --autostart
Create a sample ssh config:
domip=$(sudo virsh -q domifaddr ebpf-lab | awk '{print $4}' | cut -d/ -f 1)
cat << EOF > ssh-config
Host ebpf-lab
HostName $domip
User root
EOF
Connect to the VM with password root:
ssh ebpf-lab -F ssh-config
- Work as the root user
Remove the VM and associated resource:
sudo virsh destroy ebpf-lab
sudo virsh undefine ebpf-lab
rm ssh-config
rm $qemuimg