MicroCloud RoadShow Demo

Purpose of this demo is to deploy a OVN load balancer and three backend webservers on top of a MicroCloud.

Setup

A local microcloud can be setup with the deploy.sh script.

Ensure the MicroClouds UPLINK network has the ipv4.routes setting configured so that we can assign any of the routed IPs as network_lb_address_ipv4 to the load balancer:

lxc network set UPLINK ipv4.routes 192.168.20.200/32

Login to one of the MicroCloud machines and create a trust token:

ssh ubuntu@192.168.20.10
...
lxc config trust add terraform

Login to the terraform container within the demo-deployer project and configure a new remote using the trust token:

lxc remote add 192.168.20.10

Create a new terraform.tfvars file in the root of the project with the following contents:

remote_address = "192.168.20.10"
network_address_ipv4 = "10.42.1.1/24"
network_address_ipv6 = "fd42:474b:622d:259d::1/64"
network_lb_address_ipv4 = "192.168.20.100"
network_uplink_allowed_subnet = "192.168.20.100/32"

Install the Terraform snap:

snap install terraform --classic

Demo

Use either Terraform or OpenTofu to deploy the setup:

terraform apply -auto-approve

Verify using

while true; do curl http://192.168.20.100/ping/; sleep .5; done

Tear down the deployment with

terraform destroy --auto-approve