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Merge pull request #57 from chatwork/karpenter
Add karpenter test
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,164 @@ | ||
| package clusterautoscaler | ||
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| import ( | ||
| "context" | ||
| "os" | ||
| "path/filepath" | ||
| "testing" | ||
| "text/template" | ||
| "time" | ||
|
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| "github.com/chatwork/kibertas/cmd" | ||
| "github.com/chatwork/kibertas/util/notify" | ||
| "github.com/stretchr/testify/require" | ||
| "k8s.io/apimachinery/pkg/util/wait" | ||
|
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| "github.com/mumoshu/testkit" | ||
| "github.com/sirupsen/logrus" | ||
| ) | ||
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| func TestKarpenterScaleUpFromNonZero(t *testing.T) { | ||
| if testing.Short() { | ||
| t.Skip("Skipping test in short mode.") | ||
| } | ||
|
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| vpcID := os.Getenv("VPC_ID") | ||
| if vpcID == "" { | ||
| t.Skip("VPC_ID is not set") | ||
| } | ||
|
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| amdAMIID := os.Getenv("AMD_AMI_ID") | ||
| if amdAMIID == "" { | ||
| t.Skip("AMD_AMI_ID is not set") | ||
| } | ||
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| appName := "sample-for-scale" | ||
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| h := testkit.New(t, | ||
| testkit.Providers( | ||
| &testkit.TerraformProvider{ | ||
| WorkspacePath: "testdata/terraform", | ||
| Vars: map[string]string{ | ||
| "autoscaler_name": "karpenter", | ||
| "prefix": "kibertas-ca", | ||
| "region": "ap-northeast-1", | ||
| "vpc_id": vpcID, | ||
| "capacity_type": "SPOT", | ||
| "node_template_app_label_value": appName, | ||
| }, | ||
| }, | ||
| &testkit.KubectlProvider{}, | ||
| ), | ||
| testkit.RetainResourcesOnFailure(), | ||
| ) | ||
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| kc := h.KubernetesCluster(t) | ||
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| k := testkit.NewKubernetes(kc.KubeconfigPath) | ||
| testkit.PollUntil(t, func() bool { | ||
| return len(k.ListReadyNodeNames(t)) > 1 | ||
| }, 20*time.Second) | ||
|
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| helm := testkit.NewHelm(kc.KubeconfigPath) | ||
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| clusterautoscalerNs := "default" | ||
| helm.UpgradeOrInstall(t, "karpenter", "oci://public.ecr.aws/karpenter/karpenter", func(hc *testkit.HelmConfig) { | ||
| hc.Values = map[string]interface{}{ | ||
| "settings": map[string]interface{}{ | ||
| // This is so because we specify prefix=kibertas-ca in the testkit constructor above | ||
| // and the terraform main.tf uses prefix + "-cluster" as the cluster name. | ||
| "clusterName": "kibertas-ca-cluster", | ||
| "interruptionQueue": "kibertas-ca-cluster", | ||
| }, | ||
| "controller": map[string]interface{}{ | ||
| "resources": map[string]interface{}{ | ||
| "requests": map[string]interface{}{ | ||
| "cpu": "1", | ||
| "memory": "1Gi", | ||
| }, | ||
| "limits": map[string]interface{}{ | ||
| "cpu": "1", | ||
| "memory": "1Gi", | ||
| }, | ||
| }, | ||
| }, | ||
| // Otherwise, karpenter can be deployed onto the spot nodes, and it will prevent the scale-down | ||
| "tolerations": []map[string]interface{}{ | ||
| { | ||
| "key": "node-role.kubernetes.io/control-plane", | ||
| "effect": "NoSchedule", | ||
| }, | ||
| }, | ||
| } | ||
|
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| hc.Namespace = clusterautoscalerNs | ||
| }) | ||
|
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| kubectl := testkit.NewKubectl(kc.KubeconfigPath) | ||
|
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| tmpKarpenterYamlPath := filepath.Join(t.TempDir(), "karpenter.yaml") | ||
| tmpl, err := template.New("karpenter.yaml").ParseFiles("testdata/karpenter.yaml") | ||
| require.NoError(t, err) | ||
| { | ||
| f, err := os.Create(tmpKarpenterYamlPath) | ||
| require.NoError(t, err) | ||
| defer f.Close() | ||
|
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| require.NoError(t, tmpl.ExecuteTemplate(f, "karpenter.yaml", map[string]string{ | ||
| "ClusterName": "kibertas-ca-cluster", | ||
| "AmdAmiId": amdAMIID, | ||
| "RoleName": "kibertas-ca-node", | ||
| })) | ||
| } | ||
|
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| t.Cleanup(func() { | ||
| if !t.Failed() { | ||
| kubectl.Capture(t, "delete", "-f", tmpKarpenterYamlPath) | ||
| } | ||
| }) | ||
| kubectl.Capture(t, "apply", "-f", tmpKarpenterYamlPath) | ||
|
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| os.Setenv("RESOURCE_NAME", appName) | ||
| os.Setenv("KUBECONFIG", kc.KubeconfigPath) | ||
| // os.Setenv("NODE_LABEL_VALUE", "ON_DEMAND") | ||
| os.Setenv("NODE_LABEL_KEY", "karpenter.sh/capacity-type") | ||
| os.Setenv("NODE_LABEL_VALUE", "spot") | ||
|
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| logger := func() *logrus.Entry { | ||
| return logrus.NewEntry(logrus.New()) | ||
| } | ||
| chatwork := ¬ify.Chatwork{ | ||
| Logger: logger, | ||
| } | ||
| checker := cmd.NewChecker(context.Background(), false, logger, chatwork, "test", 7*time.Minute) | ||
| clusterautoscaler, err := NewClusterAutoscaler(checker) | ||
| if err != nil { | ||
| t.Fatalf("NewClusterAutoscaler: %s", err) | ||
| } | ||
|
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| if clusterautoscaler == nil { | ||
| t.Error("Expected clusterautoscaler instance, got nil") | ||
| } | ||
|
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| initialNodes := len(k.ListReadyNodeNames(t)) | ||
|
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| // Scale up by 1 | ||
| require.NoError(t, clusterautoscaler.Check()) | ||
| require.NoError(t, wait.PollUntilContextTimeout(context.Background(), 5*time.Second, 5*time.Minute, false, func(ctx context.Context) (bool, error) { | ||
| nodes := k.ListReadyNodeNames(t) | ||
| return len(nodes) == initialNodes+1, nil | ||
| })) | ||
|
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| // Scale to zero (or the original number of nodes) | ||
| require.NoError(t, wait.PollUntilContextTimeout(context.Background(), 5*time.Second, 10*time.Minute, false, func(ctx context.Context) (bool, error) { | ||
| nodes := k.ListReadyNodeNames(t) | ||
| return len(nodes) == initialNodes, nil | ||
| })) | ||
|
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| // Scale up by 1 (again) | ||
| require.NoError(t, clusterautoscaler.Check()) | ||
| require.NoError(t, wait.PollUntilContextTimeout(context.Background(), 5*time.Second, 8*time.Minute, false, func(ctx context.Context) (bool, error) { | ||
| nodes := k.ListReadyNodeNames(t) | ||
| return len(nodes) == initialNodes+1, nil | ||
| })) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| apiVersion: karpenter.sh/v1beta1 | ||
| kind: NodePool | ||
| metadata: | ||
| name: default | ||
| spec: | ||
| template: | ||
| # metadata: | ||
| # labels: | ||
| # karpenter.sh/capacity-type: spot | ||
| spec: | ||
| requirements: | ||
| # - key: kubernetes.io/arch | ||
| # operator: In | ||
| # values: ["amd64"] | ||
| # - key: kubernetes.io/os | ||
| # operator: In | ||
| # values: ["linux"] | ||
| - key: karpenter.sh/capacity-type | ||
| operator: In | ||
| values: ["spot"] | ||
| - key: karpenter.k8s.aws/instance-category | ||
| operator: In | ||
| values: ["c", "m", "r"] | ||
| - key: karpenter.k8s.aws/instance-size | ||
| operator: In | ||
| values: ["nano", "micro", "small", "medium"] | ||
| # - key: karpenter.k8s.aws/instance-family | ||
| # operator: In | ||
| # values: ["t4"] | ||
| nodeClassRef: | ||
| apiVersion: karpenter.k8s.aws/v1beta1 | ||
| kind: EC2NodeClass | ||
| name: default | ||
| limits: | ||
| cpu: 1000 | ||
| disruption: | ||
| consolidationPolicy: WhenUnderutilized | ||
| expireAfter: 720h # 30 * 24h = 720h | ||
| --- | ||
| apiVersion: karpenter.k8s.aws/v1beta1 | ||
| kind: EC2NodeClass | ||
| metadata: | ||
| name: default | ||
| spec: | ||
| amiFamily: AL2 # Amazon Linux 2 | ||
| role: "{{ .RoleName }}" # replace with your cluster name | ||
| subnetSelectorTerms: | ||
| - tags: | ||
| karpenter.sh/discovery: "{{ .ClusterName }}" # replace with your cluster name | ||
| securityGroupSelectorTerms: | ||
| - tags: | ||
| karpenter.sh/discovery: "{{ .ClusterName }}" # replace with your cluster name | ||
| amiSelectorTerms: | ||
| - id: "{{ .AmdAmiId }}" |
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