feat: handle affinity, anti-affinity, and topologySpreadConstraints

terraform/modules/provision-aws/locals/k8s-locals.tf

@@ -4,6 +4,6 @@ locals {
   server                     = data.aws_eks_cluster.main.endpoint
   zone_id                    = aws_route53_zone.cluster.zone_id
   zone_role_arn              = aws_iam_role.external_dns.arn
-  launch_template_name       = data.aws_launch_template.eks_launch_template.name
+  launch_template_name       = data.aws_launch_template.eks_launch_template.id
   vpc_cidr_range             = module.vpc.vpc_cidr_block
 }

terraform/modules/provision-aws/managed-node-groups.tf

@@ -61,7 +61,7 @@ resource "helm_release" "karpenter" {
   name       = "karpenter"
   repository = "https://charts.karpenter.sh"
   chart      = "karpenter"
-  version    = "v0.8.0"
+  version    = "v0.9.1"
 
   dynamic "set" {
     for_each = {

terraform/modules/provision-k8s/k8s-autoscaler.tf

@@ -21,9 +21,9 @@ resource "helm_release" "autoscaler-provisioner" {
         resources:
           cpu: 1000
       provider:
-        launchTemplate: <launch-template-name>
+        launchTemplate: ${local.launch_template_name}
         subnetSelector:
-          karpenter.sh/discovery: <cluster-name>
+          karpenter.sh/discovery: ${local.cluster_name}
       ttlSecondsAfterEmpty: 30
     EOF
   ]

test.sh

@@ -224,6 +224,19 @@ else
     echo FAIL
 fi
 
+# Test 4 - autoscaling works
+echo -n "Provisioning a resource too big for m4.xlarge"
+kubectl apply -f test_specs/autoscaling/pod.yml
+
+echo -n "Waiting for Pod to start..."
+if (kubectl wait --for=condition=ready --timeout=600s pod large-app); then
+  echo PASS
+else
+  retval=1
+  echo FAIL
+fi
+
+
 #######
 ## From here down, tests need a KUBECONFIG with an admin user to complete correctly, so let's make a new one
 # Grab the name of the cluster for use with the aws CLI

test_specs/autoscaling/pod.yml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: large-app
+spec:
+  containers:
+  - name: large-app
+    image: busybox
+    resources:
+      requests:
+        cpu: "5000m"
+      limits:
+        cpu: "6000m"