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test: add tests for injector (#2534)
## Description Adds tests to injector. ## Related Issue Relates to #2512 ## Checklist before merging - [x] Test, docs, adr added or updated as needed - [x] [Contributor Guide Steps](https://github.com/defenseunicorns/zarf/blob/main/.github/CONTRIBUTING.md#developer-workflow) followed
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,204 @@ | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // SPDX-FileCopyrightText: 2021-Present The Zarf Authors | ||
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| package cluster | ||
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| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
| "testing" | ||
| "time" | ||
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| "github.com/stretchr/testify/require" | ||
| corev1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/api/resource" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/client-go/kubernetes/fake" | ||
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| "github.com/defenseunicorns/zarf/src/pkg/k8s" | ||
| ) | ||
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| func TestCreateInjectorConfigMap(t *testing.T) { | ||
| t.Parallel() | ||
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| binData := []byte("foobar") | ||
| binPath := filepath.Join(t.TempDir(), "bin") | ||
| err := os.WriteFile(binPath, binData, 0o644) | ||
| require.NoError(t, err) | ||
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| cs := fake.NewSimpleClientset() | ||
| c := &Cluster{ | ||
| &k8s.K8s{ | ||
| Clientset: cs, | ||
| }, | ||
| } | ||
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| ctx := context.Background() | ||
| for i := 0; i < 2; i++ { | ||
| err = c.createInjectorConfigMap(ctx, binPath) | ||
| require.NoError(t, err) | ||
| cm, err := cs.CoreV1().ConfigMaps(ZarfNamespaceName).Get(ctx, "rust-binary", metav1.GetOptions{}) | ||
| require.NoError(t, err) | ||
| require.Equal(t, binData, cm.BinaryData["zarf-injector"]) | ||
| } | ||
| } | ||
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| func TestCreateService(t *testing.T) { | ||
| t.Parallel() | ||
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| cs := fake.NewSimpleClientset() | ||
| c := &Cluster{ | ||
| &k8s.K8s{ | ||
| Clientset: cs, | ||
| }, | ||
| } | ||
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| expected, err := os.ReadFile("./testdata/expected-injection-service.json") | ||
| require.NoError(t, err) | ||
| ctx := context.Background() | ||
| for i := 0; i < 2; i++ { | ||
| _, err := c.createService(ctx) | ||
| require.NoError(t, err) | ||
| svc, err := cs.CoreV1().Services(ZarfNamespaceName).Get(ctx, "zarf-injector", metav1.GetOptions{}) | ||
| require.NoError(t, err) | ||
| b, err := json.Marshal(svc) | ||
| require.NoError(t, err) | ||
| require.Equal(t, strings.TrimSpace(string(expected)), string(b)) | ||
| } | ||
| } | ||
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| func TestBuildInjectionPod(t *testing.T) { | ||
| t.Parallel() | ||
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| c := &Cluster{} | ||
| pod, err := c.buildInjectionPod("injection-node", "docker.io/library/ubuntu:latest", []string{"foo", "bar"}, "shasum") | ||
| require.NoError(t, err) | ||
| b, err := json.Marshal(pod) | ||
| require.NoError(t, err) | ||
| expected, err := os.ReadFile("./testdata/expected-injection-pod.json") | ||
| require.NoError(t, err) | ||
| require.Equal(t, strings.TrimSpace(string(expected)), string(b)) | ||
| } | ||
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| func TestImagesAndNodesForInjection(t *testing.T) { | ||
| t.Parallel() | ||
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| ctx := context.Background() | ||
| cs := fake.NewSimpleClientset() | ||
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| c := &Cluster{ | ||
| &k8s.K8s{ | ||
| Clientset: cs, | ||
| Log: func(string, ...any) {}, | ||
| }, | ||
| } | ||
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| nodes := []corev1.Node{ | ||
| { | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "no-resources", | ||
| }, | ||
| Status: corev1.NodeStatus{ | ||
| Allocatable: corev1.ResourceList{ | ||
| corev1.ResourceCPU: resource.MustParse("400m"), | ||
| corev1.ResourceMemory: resource.MustParse("50Mi"), | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "no-schedule-taint", | ||
| }, | ||
| Spec: corev1.NodeSpec{ | ||
| Taints: []corev1.Taint{ | ||
| { | ||
| Effect: corev1.TaintEffectNoSchedule, | ||
| }, | ||
| }, | ||
| }, | ||
| Status: corev1.NodeStatus{ | ||
| Allocatable: corev1.ResourceList{ | ||
| corev1.ResourceCPU: resource.MustParse("1000m"), | ||
| corev1.ResourceMemory: resource.MustParse("10Gi"), | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "good", | ||
| }, | ||
| Status: corev1.NodeStatus{ | ||
| Allocatable: corev1.ResourceList{ | ||
| corev1.ResourceCPU: resource.MustParse("1000m"), | ||
| corev1.ResourceMemory: resource.MustParse("10Gi"), | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "no-execute-taint", | ||
| }, | ||
| Spec: corev1.NodeSpec{ | ||
| Taints: []corev1.Taint{ | ||
| { | ||
| Effect: corev1.TaintEffectNoExecute, | ||
| }, | ||
| }, | ||
| }, | ||
| Status: corev1.NodeStatus{ | ||
| Allocatable: corev1.ResourceList{ | ||
| corev1.ResourceCPU: resource.MustParse("1000m"), | ||
| corev1.ResourceMemory: resource.MustParse("10Gi"), | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| for i, node := range nodes { | ||
| _, err := cs.CoreV1().Nodes().Create(ctx, &node, metav1.CreateOptions{}) | ||
| require.NoError(t, err) | ||
| podName := fmt.Sprintf("pod-%d", i) | ||
| pod := corev1.Pod{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: podName, | ||
| Namespace: "default", | ||
| }, | ||
| Spec: corev1.PodSpec{ | ||
| NodeName: node.ObjectMeta.Name, | ||
| InitContainers: []corev1.Container{ | ||
| { | ||
| Image: podName + "-init", | ||
| }, | ||
| }, | ||
| Containers: []corev1.Container{ | ||
| { | ||
| Image: podName + "-container", | ||
| }, | ||
| }, | ||
| EphemeralContainers: []corev1.EphemeralContainer{ | ||
| { | ||
| EphemeralContainerCommon: corev1.EphemeralContainerCommon{ | ||
| Image: podName + "-ephemeral", | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| _, err = cs.CoreV1().Pods(pod.Namespace).Create(ctx, &pod, metav1.CreateOptions{}) | ||
| require.NoError(t, err) | ||
| } | ||
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| getCtx, getCancel := context.WithTimeout(ctx, 1*time.Second) | ||
| defer getCancel() | ||
| result, err := c.getImagesAndNodesForInjection(getCtx) | ||
| require.NoError(t, err) | ||
| expected := imageNodeMap{ | ||
| "pod-2-init": []string{"good"}, | ||
| "pod-2-container": []string{"good"}, | ||
| "pod-2-ephemeral": []string{"good"}, | ||
| } | ||
| require.Equal(t, expected, result) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| {"kind":"Pod","apiVersion":"v1","metadata":{"name":"injector","namespace":"zarf","creationTimestamp":null,"labels":{"app":"zarf-injector","zarf.dev/agent":"ignore"}},"spec":{"volumes":[{"name":"init","configMap":{"name":"rust-binary","defaultMode":511}},{"name":"seed","emptyDir":{}},{"name":"foo","configMap":{"name":"foo"}},{"name":"bar","configMap":{"name":"bar"}}],"containers":[{"name":"injector","image":"docker.io/library/ubuntu:latest","command":["/zarf-init/zarf-injector","shasum"],"workingDir":"/zarf-init","resources":{"limits":{"cpu":"1","memory":"256Mi"},"requests":{"cpu":"500m","memory":"64Mi"}},"volumeMounts":[{"name":"init","mountPath":"/zarf-init/zarf-injector","subPath":"zarf-injector"},{"name":"seed","mountPath":"/zarf-seed"},{"name":"foo","mountPath":"/zarf-init/foo","subPath":"foo"},{"name":"bar","mountPath":"/zarf-init/bar","subPath":"bar"}],"readinessProbe":{"httpGet":{"path":"/v2/","port":5000},"periodSeconds":2,"successThreshold":1,"failureThreshold":10},"imagePullPolicy":"IfNotPresent"}],"restartPolicy":"Never","nodeName":"injection-node"},"status":{}} |
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| @@ -0,0 +1 @@ | ||
| {"kind":"Service","apiVersion":"v1","metadata":{"name":"zarf-injector","namespace":"zarf","creationTimestamp":null},"spec":{"ports":[{"port":5000,"targetPort":0}],"selector":{"app":"zarf-injector"},"type":"NodePort"},"status":{"loadBalancer":{}}} |