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Signed-off-by: Kanha gupta <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,236 @@ | ||
| // Copyright 2024 Antrea Authors. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package cluster | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
| "time" | ||
|
|
||
| "github.com/spf13/cobra" | ||
|
|
||
| corev1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/api/errors" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/util/wait" | ||
| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/client-go/rest" | ||
|
|
||
| "antrea.io/antrea/pkg/antctl/raw/check" | ||
| ) | ||
|
|
||
| func Command() *cobra.Command { | ||
| o := newOptions() | ||
| command := &cobra.Command{ | ||
| Use: "cluster", | ||
| Short: "Runs pre installation checks", | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| return Run(o) | ||
| }, | ||
| } | ||
| command.Flags().StringVarP(&o.antreaNamespace, "Namespace", "n", o.antreaNamespace, "Configure Namespace in which Antrea is running") | ||
| return command | ||
| } | ||
|
|
||
| type options struct { | ||
| antreaNamespace string | ||
| } | ||
|
|
||
| func newOptions() *options { | ||
| return &options{ | ||
| antreaNamespace: "kube-system", | ||
| } | ||
| } | ||
|
|
||
| const ( | ||
| antreaNamespace = "kube-system" | ||
| deploymentName = "cluster-check" | ||
| podReadyTimeout = 1 * time.Minute | ||
| ) | ||
|
|
||
| type Test interface { | ||
| Run(ctx context.Context, testContext *testContext) error | ||
| } | ||
|
|
||
| var testsRegistry = make(map[string]Test) | ||
|
|
||
| func RegisterTest(name string, test Test) { | ||
| testsRegistry[name] = test | ||
| } | ||
|
|
||
| type testContext struct { | ||
| client kubernetes.Interface | ||
| config *rest.Config | ||
| clusterName string | ||
| antreaNamespace string | ||
| } | ||
|
|
||
| func Run(o *options) error { | ||
| client, config, clusterName, err := check.NewClient() | ||
| if err != nil { | ||
| return fmt.Errorf("unable to create Kubernetes client: %s", err) | ||
| } | ||
| ctx := context.Background() | ||
| testContext := NewTestContext(client, config, clusterName, o) | ||
| if err := testContext.setup(ctx); err != nil { | ||
| return err | ||
| } | ||
| for name, test := range testsRegistry { | ||
| testContext.Header("Running test: %s", name) | ||
| if err := test.Run(ctx, testContext); err != nil { | ||
| testContext.Header("Test %s failed: %s", name, err) | ||
| } else { | ||
| testContext.Header("Test %s passed", name) | ||
| } | ||
| } | ||
| testContext.Log("Test finished") | ||
| testContext.teardown(ctx, deploymentName, antreaNamespace) | ||
| return nil | ||
| } | ||
|
|
||
| func (t *testContext) setup(ctx context.Context) error { | ||
| deployment := check.NewDeployment(check.DeploymentParameters{ | ||
| Name: deploymentName, | ||
| Image: "alpine", | ||
| Replicas: 1, | ||
| Command: []string{"sleep", "infinity"}, | ||
| Labels: map[string]string{"app": "cluster-check"}, | ||
| HostNetwork: true, | ||
| VolumeMounts: []corev1.VolumeMount{ | ||
| {Name: "cni-conf", MountPath: "/etc/cni/net.d"}, | ||
| {Name: "lib-modules", MountPath: "/lib/modules"}, | ||
| {Name: "os-info", MountPath: "/etc/os-release"}, | ||
| }, | ||
| Tolerations: []corev1.Toleration{ | ||
| { | ||
| Key: "node-role.kubernetes.io/control-plane", | ||
| Operator: "Exists", | ||
| Effect: "NoSchedule", | ||
| }, | ||
| { | ||
| Key: "node.kubernetes.io/not-ready", | ||
| Operator: "Exists", | ||
| Effect: "NoSchedule", | ||
| }, | ||
| }, | ||
| Volumes: []corev1.Volume{ | ||
| { | ||
| Name: "cni-conf", | ||
| VolumeSource: corev1.VolumeSource{ | ||
| HostPath: &corev1.HostPathVolumeSource{ | ||
| Path: "/etc/cni/net.d", | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| Name: "lib-modules", | ||
| VolumeSource: corev1.VolumeSource{ | ||
| HostPath: &corev1.HostPathVolumeSource{ | ||
| Path: "/lib/modules", | ||
| Type: hostPathTypePtr("Directory"), | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| Name: "os-info", | ||
| VolumeSource: corev1.VolumeSource{ | ||
| HostPath: &corev1.HostPathVolumeSource{ | ||
| Path: "/etc/os-release", | ||
| Type: hostPathTypePtr("File"), | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }) | ||
|
|
||
| t.Log("Creating Deployment") | ||
| _, err := t.client.AppsV1().Deployments(antreaNamespace).Create(ctx, deployment, metav1.CreateOptions{}) | ||
| if err != nil { | ||
| return fmt.Errorf("unable to create Deployment: %w", err) | ||
| } | ||
|
|
||
| t.Log("Waiting for Deployment to become ready") | ||
| t.waitForDeploymentsReady(ctx, time.Second, podReadyTimeout, deploymentName) | ||
| if err != nil { | ||
| return fmt.Errorf("error while waiting for Deployment to become ready: %w", err) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func hostPathTypePtr(s string) *corev1.HostPathType { | ||
| v := corev1.HostPathType(s) | ||
| return &v | ||
| } | ||
|
|
||
| func NewTestContext(client kubernetes.Interface, config *rest.Config, clusterName string, o *options) *testContext { | ||
| return &testContext{ | ||
| client: client, | ||
| config: config, | ||
| clusterName: clusterName, | ||
| antreaNamespace: o.antreaNamespace, | ||
| } | ||
| } | ||
|
|
||
| func (t *testContext) teardown(ctx context.Context, deploymentName, namespace string) error { | ||
| err := t.client.AppsV1().Deployments(namespace).Delete(ctx, deploymentName, metav1.DeleteOptions{}) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| t.Log("Waiting for the deletion of Deployment %s in Namespace %s...", deploymentName, namespace) | ||
| err = wait.PollUntilContextTimeout(ctx, 2*time.Second, 1*time.Minute, true, func(ctx context.Context) (bool, error) { | ||
| _, err := t.client.AppsV1().Deployments(namespace).Get(ctx, deploymentName, metav1.GetOptions{}) | ||
| if errors.IsNotFound(err) { | ||
| return true, nil | ||
| } | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| return false, nil | ||
| }) | ||
| if err != nil { | ||
| return fmt.Errorf("error waiting for Deployment %s to be deleted in Namespace %s: %w", deploymentName, namespace, err) | ||
| } | ||
| t.Log("Deployment %s successfully deleted from Namespace %s", deploymentName, namespace) | ||
| return nil | ||
| } | ||
|
|
||
| func (t *testContext) waitForDeploymentsReady(ctx context.Context, interval, timeout time.Duration, deployments ...string) error { | ||
| for _, deployment := range deployments { | ||
| t.Log("Waiting for Deployment %s to become ready...", deployment) | ||
| err := wait.PollUntilContextTimeout(ctx, interval, timeout, false, func(ctx context.Context) (bool, error) { | ||
| ready, err := check.DeploymentIsReady(ctx, t.client, t.antreaNamespace, deployment) | ||
| if err != nil { | ||
| return false, fmt.Errorf("error checking readiness of Deployment %s: %w", deployment, err) | ||
| } | ||
| return ready, nil | ||
| }) | ||
| if err != nil { | ||
| return fmt.Errorf("waiting for Deployment %s to become ready has been interrupted: %w", deployment, err) | ||
| } | ||
| t.Log("Deployment %s is ready.", deployment) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (t *testContext) Log(format string, a ...interface{}) { | ||
| fmt.Fprintf(os.Stdout, fmt.Sprintf("[%s] ", t.clusterName)+format+"\n", a...) | ||
| } | ||
|
|
||
| func (t *testContext) Header(format string, a ...interface{}) { | ||
| t.Log("-------------------------------------------------------------------------------------------") | ||
| t.Log(format, a...) | ||
| t.Log("-------------------------------------------------------------------------------------------") | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| // Copyright 2024 Antrea Authors. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package cluster | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
|
|
||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
|
|
||
| "antrea.io/antrea/pkg/antctl/raw/check" | ||
| ) | ||
|
|
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| type checkCNIAvailability struct{} | ||
|
|
||
| func init() { | ||
| RegisterTest("Check if another CNI is Present", &checkCNIAvailability{}) | ||
| } | ||
|
|
||
| func (t *checkCNIAvailability) Run(ctx context.Context, testContext *testContext) error { | ||
| pods, err := testContext.client.CoreV1().Pods(antreaNamespace).List(ctx, metav1.ListOptions{LabelSelector: "app=cluster-check"}) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to list Pods: %v", err) | ||
| } | ||
| for _, pod := range pods.Items { | ||
| testContext.Log("Checking if CNI is present in Pod: %s", pod.Name) | ||
| command := []string{"ls", "/etc/cni/net.d"} | ||
| output, _, err := check.ExecInPod(ctx, testContext.client, testContext.config, antreaNamespace, pod.Name, "", command) | ||
| if err != nil { | ||
| testContext.Log("failed to execute command in pod: %s, error: %v", pod.Name, err) | ||
| continue | ||
| } | ||
| outputStr := strings.TrimSpace(output) | ||
| if outputStr == "" { | ||
| testContext.Log("No files present in /etc/cni/net.d in pod: %s", pod.Name) | ||
| return nil | ||
| } else { | ||
| return fmt.Errorf("error: files found in /host/etc/cni/net.d in pod: %s", outputStr) | ||
| } | ||
| } | ||
| return nil | ||
| } |
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