♻️ Update vcluster Helm chart; improve konk script

It is now possible to have multiple konk clusters in parallel,
thanks to the KONKTAG environment variable.

prepare-labs/konk.sh

@@ -5,16 +5,22 @@
 # 10% CPU
 # (See https://docs.google.com/document/d/1n0lwp6rQKQUIuo_A5LQ1dgCzrmjkDjmDtNj1Jn92UrI)
 # PRO2-XS = 4 core, 16 gb
+#
+# With vspod:
+# 800 MB RAM
+# 33% CPU
+#
 
 set -e
 
-PROVIDER=scaleway
-STUDENTS=30
+KONKTAG=konk
+PROVIDER=linode
+STUDENTS=5
 
 case "$PROVIDER" in
 linode)
   export TF_VAR_node_size=g6-standard-6
-  export TF_VAR_location=us-east
+  export TF_VAR_location=fr-par
   ;;
 scaleway)
   export TF_VAR_node_size=PRO2-XS
@@ -28,11 +34,13 @@ esac
 export KUBECONFIG=~/kubeconfig
 
 if [ "$PROVIDER" = "kind" ]; then
-  kind create cluster --name konk
+  kind create cluster --name $KONKTAG
   ADDRTYPE=InternalIP
 else
-  ./labctl create --mode mk8s --settings settings/konk.env --provider $PROVIDER --tag konk
-  cp tags/konk/stage2/kubeconfig.101 $KUBECONFIG
+  if ! [ -f tags/$KONKTAG/stage2/kubeconfig.101 ]; then
+    ./labctl create --mode mk8s --settings settings/konk.env --provider $PROVIDER --tag $KONKTAG
+  fi
+  cp tags/$KONKTAG/stage2/kubeconfig.101 $KUBECONFIG
   ADDRTYPE=ExternalIP
 fi
 

prepare-labs/terraform/one-kubernetes/vcluster/main.tf

@@ -4,23 +4,35 @@ resource "helm_release" "_" {
   create_namespace = true
   repository       = "https://charts.loft.sh"
   chart            = "vcluster"
-  version          = "0.19.7"
+  version          = "0.27.1"
   values = [
     yamlencode({
-      service = {
-        type = "NodePort"
-      }
-      storage = {
-        persistence = false
-      }
-      sync = {
-        nodes = {
-          enabled      = true
-          syncAllNodes = true
+      controlPlane = {
+        proxy = {
+          extraSANs = [ local.guest_api_server_host ]
+        }
+        service = {
+          spec = {
+            type = "NodePort"
+          }
+        }
+        statefulSet = {
+          persistence = {
+            volumeClaim = {
+              enabled = true
+            }
+          }
         }
       }
-      syncer = {
-        extraArgs = ["--tls-san=${local.guest_api_server_host}"]
+      sync = {
+        fromHost = {
+          nodes = {
+            enabled = true
+            selector = {
+              all = true
+            }
+          }
+        }
       }
     })
   ]