Main idea is to run simple terraform script who would create vm's on three different cloud providers and connect those to one cluster (one master node, two worker nodes)
- terraform provider
- cloud vendor
To spin up Kubernetes cluster using scripts only, IaaC.
Create vm's using terraform provider of cloud vendor. RKE cluster could be spined up using rancher terraform provider, config passed via cluster.yaml file.
All those Vm's should be configured, I think the best way to do it is via Ansible playbooks, open ports, install dependencies. We will see.
First step to generate access token on three different cloud providers (digital ocean, vultr and hetzner). Interesting that on vultr I could even specify subnet access control for API token.
Create and specify tokens from cloud providers in variables.tf file or directly in plan command line
Example:
terraform plan --var hetzner_token=46468468468486