mirror of
https://github.com/rancher/k3k.git
synced 2026-08-19 04:16:16 +00:00
Enrico CandinoandGitHub
3a4d93f5fb
* Add tests asserting GetPods is scoped to the node's own Pods Adds a unit test (fake host + virtual clients, Pods across multiple nodes plus a dangling one) and a multi-node e2e test (a Deployment with one nginx Pod per node via required anti-affinity; restart every k3k-kubelet agent Pod; assert no workload Pod is deleted from the host or virtual cluster). Both pin the intended behavior and fail against the current code; the fix follows in the next commit. * Scope Provider.GetPods to the node's own Pods to prevent cross-node dangling-pod deletion GetPods() listed host Pods cluster-wide (by the k3k.io/clusterName label only). The vendored virtual-kubelet library's deleteDanglingPods reconciliation deletes any Pod returned here that is missing from this instance's virtual Pod lister, which is scoped to spec.nodeName == agentHostname. On a multi-node host cluster, every restarting k3k-kubelet instance therefore saw Pods owned by other nodes as 'dangling' and deleted them from the host (and, in turn, the virtual cluster). Scope GetPods by the *virtual* Pod's spec.nodeName -- the same ownership signal the framework uses -- excluding Pods owned by other nodes while still returning own-node Pods and genuinely dangling ones. The host Pod's physical node is not a reliable owner (it is scheduled with only a soft, sometimes-absent affinity), so it must not be used. Virtual Pods are read live to avoid a startup cache-sync race. Makes the previous commit's tests pass. * Refactor GetPods to scope to the cluster namespace and update tests accordingly * Add AgentNameLabel to track Pods synced by the k3k-kubelet agent and update tests accordingly * Add failing test for updatePod
48 lines
874 B
Go
48 lines
874 B
Go
package cli_test
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import (
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"context"
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"testing"
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"k8s.io/client-go/kubernetes"
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"k8s.io/client-go/rest"
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"sigs.k8s.io/controller-runtime/pkg/client"
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fwclient "github.com/rancher/k3k/tests/framework/client"
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. "github.com/onsi/ginkgo/v2"
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. "github.com/onsi/gomega"
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)
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const (
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k3sVersion = "v1.36.2-k3s1"
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k3sOldVersion = "v1.36.0-k3s1"
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)
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func TestTests(t *testing.T) {
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RegisterFailHandler(Fail)
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RunSpecs(t, "Tests Suite")
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}
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var (
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restcfg *rest.Config
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k8s *kubernetes.Clientset
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k8sClient client.Client
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)
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var _ = BeforeSuite(func() {
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ctx := context.Background()
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initKubernetesClient(ctx)
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})
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func initKubernetesClient(ctx context.Context) {
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scheme := fwclient.NewScheme()
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config, err := fwclient.InitFromKubeconfig(ctx, scheme)
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Expect(err).NotTo(HaveOccurred())
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restcfg = config.RestConfig
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k8s = config.Clientset
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k8sClient = config.Client
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}
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