Terraform Configurations

Terraform configurations are used for provisioning Kubernetes cluster and node pools required for deployment of services.

You can find the configurations required for provisioning on your cloud provider on the following GitHub repository.

https://github.com/rierino-open/deploymentgithub.com

Terraform Configuration Repository

It is possible to customize the following provisioning variables as needed:

Variable	Definition	Default
region	Cloud region to provision the cluster on	"eu-north-1"
vpc_id	ID of VPC to add cluster to	-
zones	Zones to user for the cluster	["eu-north-1b"]
cluster_name	Name to assign to provisioned cluster	"rierino-cluster"
static_ips	Names of static ips to allocate for services	[ "admin-gateway-lb-ip", "h2owave-lb-ip", "admin-ui-lb-ip" ]
node_pools	List of node pool definitions to provision	[ { name = "admin" instance_size = "small" desired_size = 1 min_size = 1 max_size = 2 }, { name = "ui" instance_size = "medium" desired_size = 1 min_size = 1 max_size = 2 }, { name = "infra" instance_size = "small" desired_size = 1 min_size = 1 max_size = 2 }, { name = "ops" instance_size = "large" desired_size = 1 min_size = 1 max_size = 2 } ]
admin_cidr	CIDR for static IP addresses to grant admin access to	-

Where do we draw the line between Terraform & Ansible?

We use Terraform strictly for provisioning of cloud vendor specific resources (e.g. cluster, node pools, security groups).

Any application installation, configuration or kubernetes deployment is done using Ansible.