Terraform examples

This repository contains a few examples to deploy Scaleway Kapsule clusters:

Directory	Description
`prd/default`	A basic kapsule cluster
`prd/multi-az`	A production ready multi-az kapsule cluster
`prd/pgw`	A basic kapsule cluster with fully isolated nodes (no public ip) using a public gateway

Deployment

Install the Scaleway CLI and initialize the configuration.

pacman -S scaleway-cli
scw init

You may use profiles to differentiate between accounts/orgs/projects.

Go into any directory depending on which config you want to use (ex: cd prd/multi-az)
Edit the terraform.tfvars file
terraform init - Initializes terraform
terraform apply - Deploy the environment

Configurations

Config	Isolated Nodes	Nodes with Public IPs	Public Gateway	Multi-AZ	Ingress controller	Cert-Manager
`default`	✅	✅	❌	❌	✅	✅
`multi-az`	✅	✅	❌	✅	✅	✅
`pgw`	✅	❌	✅	❌	✅	✅

CNI: cilium
Auto Upgrade - Enabled on all clusters on a weekly basis.
Auto Heal - Enabled on all pools, will auto-replace failing nodes.
Auto Scale - Enabled on all pools, from 2 to 3 nodes per pool.
Placement group - Enabled to enhance the availability of nodes.

Note: the placement group limits the pools to 20 Instances, you may want to remove the placement groups if you need more nodes per pools.

Services

Ingress-Controller

The ingress controller uses an ingress-nginx deployed as a DaemonSet.
It uses Proxy-Protocol-V2 to expose the client IP in the X-Forwarded-For header.

The multi-az configuration uses multiple LoadBalancer services so that you can use DNS Round Robin to enhance the availability. (failure of an entire AZ)

DNS is not handled by this terraform but could be added too.

Cert-Manager