Snabb Switch functional testing suite for OpenStack integration using NixOS
Prerequisites for the host (Linux):
- pass
intel_iommu=onas kernel parameter on host machine where tests are being ran. - hugepages are configured
- PCI devices are not assigned (
rmmod ixgbe) kvm-intelkernel module is loaded withnested=1parameter
Prerequisites for the host (NixOS):
boot.kernelModules = [ "kvm-intel nested=1" "pci-stub" ];
boot.kernelParams = [ "intel_iommu=on" "hugepages=4096" ];
Tests can be executed inside a docker container. Docker container ships with all software needed for tests execution.
Docker runs NixOS tests in QEMU machine with OpenStack installed.
$ docker run --rm --privileged -ti -e SNABB_PCI0="84:00.0" -e SNABB_PCI1="84:00.1" domenkozar/snabb-openstack-testing
$ docker build -t domenkozar/snabb-openstack-testing .
$ docker push domenkozar/snabb-openstack-testing
Prerequisites:
- You have installed libvirtd and it's running on your machine
(on NixOS use
virtualisation.libvirtd.enable = true;) - You're in group to access libvirtd resources (on NixOS
libvirtd)
Install NixOps
$ nix-env -i nixops
Get the OpenStack NixOS modules
$ git clone -b nixos/openstack --single-branch https://github.com/domenkozar/nixpkgs.git
Create NixOps deployment
$ nixops create -d openstack ./openstack.nix ./openstack-libvirt.nix
Deploy the cluster on VirtualBox
$ nixops deploy -d openstack -I `pwd`
Inside the VirtualBox guest run the bootstrapping script (sets up OpenStack resources)
$ nixops ssh -d openstack allinone
$ source /root/bootstrap.sh