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ci: E2E Framework [Kubernetes steps] [3/6] (#2529)
* add kubernetes steps * update port forwarder * go mod
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157 changes: 157 additions & 0 deletions
157
test/e2e/framework/kubernetes/create-agnhost-statefulset.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,157 @@ | ||
| package k8s | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strconv" | ||
| "time" | ||
|
|
||
| appsv1 "k8s.io/api/apps/v1" | ||
| v1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/api/resource" | ||
| metaV1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/client-go/tools/clientcmd" | ||
| ) | ||
|
|
||
| var ErrLabelMissingFromPod = fmt.Errorf("label missing from pod") | ||
|
|
||
| const ( | ||
| AgnhostHTTPPort = 80 | ||
| AgnhostReplicas = 1 | ||
| ) | ||
|
|
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| type CreateAgnhostStatefulSet struct { | ||
| AgnhostName string | ||
| AgnhostNamespace string | ||
| KubeConfigFilePath string | ||
| } | ||
|
|
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| func (c *CreateAgnhostStatefulSet) Run() error { | ||
| config, err := clientcmd.BuildConfigFromFlags("", c.KubeConfigFilePath) | ||
| if err != nil { | ||
| return fmt.Errorf("error building kubeconfig: %w", err) | ||
| } | ||
|
|
||
| clientset, err := kubernetes.NewForConfig(config) | ||
| if err != nil { | ||
| return fmt.Errorf("error creating Kubernetes client: %w", err) | ||
| } | ||
|
|
||
| ctx, cancel := context.WithTimeout(context.Background(), defaultTimeoutSeconds*time.Second) | ||
| defer cancel() | ||
|
|
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| agnhostStatefulest := c.getAgnhostDeployment() | ||
|
|
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| err = CreateResource(ctx, agnhostStatefulest, clientset) | ||
| if err != nil { | ||
| return fmt.Errorf("error agnhost component: %w", err) | ||
| } | ||
|
|
||
| selector, exists := agnhostStatefulest.Spec.Selector.MatchLabels["app"] | ||
| if !exists { | ||
| return fmt.Errorf("missing label \"app=%s\" from agnhost statefulset: %w", c.AgnhostName, ErrLabelMissingFromPod) | ||
| } | ||
|
|
||
| labelSelector := fmt.Sprintf("app=%s", selector) | ||
| err = WaitForPodReady(ctx, clientset, c.AgnhostNamespace, labelSelector) | ||
| if err != nil { | ||
| return fmt.Errorf("error waiting for agnhost pod to be ready: %w", err) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
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| func (c *CreateAgnhostStatefulSet) Prevalidate() error { | ||
| return nil | ||
| } | ||
|
|
||
| func (c *CreateAgnhostStatefulSet) Postvalidate() error { | ||
| return nil | ||
| } | ||
|
|
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| func (c *CreateAgnhostStatefulSet) getAgnhostDeployment() *appsv1.StatefulSet { | ||
| reps := int32(AgnhostReplicas) | ||
|
|
||
| return &appsv1.StatefulSet{ | ||
| TypeMeta: metaV1.TypeMeta{ | ||
| Kind: "Deployment", | ||
| APIVersion: "apps/v1", | ||
| }, | ||
| ObjectMeta: metaV1.ObjectMeta{ | ||
| Name: c.AgnhostName, | ||
| Namespace: c.AgnhostNamespace, | ||
| }, | ||
| Spec: appsv1.StatefulSetSpec{ | ||
| Replicas: &reps, | ||
| Selector: &metaV1.LabelSelector{ | ||
| MatchLabels: map[string]string{ | ||
| "app": c.AgnhostName, | ||
| "k8s-app": "agnhost", | ||
| }, | ||
| }, | ||
| Template: v1.PodTemplateSpec{ | ||
| ObjectMeta: metaV1.ObjectMeta{ | ||
| Labels: map[string]string{ | ||
| "app": c.AgnhostName, | ||
| "k8s-app": "agnhost", | ||
| }, | ||
| Annotations: map[string]string{ | ||
| "policy.cilium.io/proxy-visibility": "<Egress/53/UDP/DNS>", | ||
| }, | ||
| }, | ||
|
|
||
| Spec: v1.PodSpec{ | ||
| Affinity: &v1.Affinity{ | ||
| PodAntiAffinity: &v1.PodAntiAffinity{ | ||
| // prefer an even spread across the cluster to avoid scheduling on the same node | ||
| PreferredDuringSchedulingIgnoredDuringExecution: []v1.WeightedPodAffinityTerm{ | ||
| { | ||
| Weight: MaxAffinityWeight, | ||
| PodAffinityTerm: v1.PodAffinityTerm{ | ||
| TopologyKey: "kubernetes.io/hostname", | ||
| LabelSelector: &metaV1.LabelSelector{ | ||
| MatchLabels: map[string]string{ | ||
| "k8s-app": "agnhost", | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| Containers: []v1.Container{ | ||
| { | ||
| Name: c.AgnhostName, | ||
| Image: "acnpublic.azurecr.io/agnhost:2.40", | ||
| Resources: v1.ResourceRequirements{ | ||
| Requests: v1.ResourceList{ | ||
| "memory": resource.MustParse("20Mi"), | ||
| }, | ||
| Limits: v1.ResourceList{ | ||
| "memory": resource.MustParse("20Mi"), | ||
| }, | ||
| }, | ||
| Command: []string{ | ||
| "/agnhost", | ||
| }, | ||
| Args: []string{ | ||
| "serve-hostname", | ||
| "--http", | ||
| "--port", | ||
| strconv.Itoa(AgnhostHTTPPort), | ||
| }, | ||
|
|
||
| Ports: []v1.ContainerPort{ | ||
| { | ||
| ContainerPort: AgnhostHTTPPort, | ||
| }, | ||
| }, | ||
| Env: []v1.EnvVar{}, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| } |
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