feat: Upgrade default kubernetes version to 1.25 (#32)

Author: tibordp

README.md

@@ -41,7 +41,7 @@ module "k8s" {
   worker_server_type = "cx31"
   worker_count       = 2
 
-  kubernetes_version = "1.24.0"
+  kubernetes_version = "1.25.0"
 }
 
 output "kubeconfig" {
@@ -61,9 +61,9 @@ and check the access by viewing the created cluster nodes:
 ```cmd
 $ kubectl get nodes --kubeconfig=kubeconfig.conf
 NAME           STATUS   ROLES           AGE   VERSION
-k8s-master-0   Ready    control-plane   31m   v1.24.0
-k8s-worker-0   Ready    <none>          31m   v1.24.0
-k8s-worker-1   Ready    <none>          31m   v1.24.0
+k8s-master-0   Ready    control-plane   31m   v1.25.0
+k8s-worker-0   Ready    <none>          31m   v1.25.0
+k8s-worker-1   Ready    <none>          31m   v1.25.0
 ```
 
 ## Supported base images
@@ -137,7 +137,7 @@ module "k8s" {
   version = "1.0.1"
 
   ...
- 
+
   kubeadm_host = "<ip address of another master node>"
 }
 ```
@@ -157,7 +157,7 @@ TLS certificate credentials form the output can be used to chain other Terraform
 
 provider "kubernetes" {
   host = module.k8s.apiserver_url
-  
+
   # For a single-master cluster, this will be an IPv6 URL. For IPv4, this can
   # also be used
   # host = "https://${module.k8s.masters[0].ipv4_address}:6443"
@@ -203,6 +203,6 @@ In addition some caveats for dual-stack clusters in general:
 - the apiserver Service (`kubernetes.default.svc.cluster.local`) has to be single-stack, as `--apiserver-advertise-address` does not support dual-stack yet. The default address family for the cluster can be selected with `primary_ip_family` variable (defaults to `ipv6`).
 
 
-## Acknowledgements 
+## Acknowledgements
 
 Some parts, including this README, adapted from [JWDobken/terraform-hcloud-kubernetes](https://github.com/JWDobken/terraform-hcloud-kubernetes) by Joost Döbken.

main.tf

@@ -4,7 +4,7 @@ terraform {
       source  = "hetznercloud/hcloud"
       version = "~> 1.31"
     }
-    template = {
+    cloudinit = {
       source  = "hashicorp/cloudinit"
       version = "2.2.0"
     }

scripts/install-addons.sh

@@ -17,9 +17,4 @@ else
 fi
 
 kubectl apply -f hetzner_ccm.yaml
-
-# Install storage provider
-kubectl -n kube-system create secret generic hcloud-csi \
-    --from-literal=token="$HCLOUD_TOKEN"  \
-    -o yaml --dry-run=client | kubectl apply -f-
 kubectl apply -f hetzner_csi.yaml

templates/hetzner_ccm.yaml.tpl

@@ -51,24 +51,24 @@ spec:
         # cloud controller manages should be able to run on masters
         - key: "node-role.kubernetes.io/master"
           effect: NoSchedule
-          operator: Exists          
+          operator: Exists
         - key: "node-role.kubernetes.io/control-plane"
           effect: NoSchedule
-          operator: Exists          
+          operator: Exists
         - key: "node.kubernetes.io/not-ready"
           effect: "NoSchedule"
       containers:
-        - image: hetznercloud/hcloud-cloud-controller-manager:v1.12.1
+        - image: hetznercloud/hcloud-cloud-controller-manager:v1.13.0
           name: hcloud-cloud-controller-manager
           command:
             - "/bin/hcloud-cloud-controller-manager"
             - "--cloud-provider=hcloud"
             - "--leader-elect=false"
             - "--allow-untagged-cloud"
-%{ if use_hcloud_network ~} 
+%{ if use_hcloud_network ~}
             - "--allocate-node-cidrs=true"
             - "--cluster-cidr=${pod_cidr_ipv4}"
-%{ endif ~}          
+%{ endif ~}
           resources:
             requests:
               cpu: 100m
@@ -83,12 +83,13 @@ spec:
                 secretKeyRef:
                   name: hcloud
                   key: token
-%{ if use_hcloud_network ~} 
+%{ if use_hcloud_network ~}
             - name: HCLOUD_NETWORK
               valueFrom:
                 secretKeyRef:
                   name: hcloud
                   key: network
 %{ endif ~}
             - name: HCLOUD_INSTANCES_ADDRESS_FAMILY
-              value: dualstack                  
+              value: dualstack
+      priorityClassName: system-cluster-critical