lb-dr

Experiment using eBPF and aya-rs to build a simple load balancer with direct return.

How to use

There is an example setup with containerlab in the ./test/ directory.

You can deploy all what's necessary with make deploy (which is the default make target).

You can then test a request from the client container to the VIP:

docker container exec clab-aya-lb-dr-client curl --silent --head 192.168.31.50

Prerequisites

1. Install bpf-linker: cargo install bpf-linker
2. Install containerlab

Build eBPF

cargo xtask build-ebpf

To perform a release build you can use the --release flag. You may also change the target architecture with the --target flag.

Build Userspace

cargo build

Deploy the example lab

Check the make targets and use the default one:

make deploy