/
multicluster_helper.go
857 lines (786 loc) · 28.1 KB
/
multicluster_helper.go
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// Copyright (c) 2022, 2023, Oracle and/or its affiliates.
// Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl.
package multicluster
import (
"bufio"
"bytes"
"context"
"encoding/json"
errs "errors"
"fmt"
"io"
"os"
"os/exec"
"strings"
"time"
mcapi "github.com/verrazzano/verrazzano/cluster-operator/apis/clusters/v1alpha1"
"github.com/verrazzano/verrazzano/pkg/k8s/resource"
oamcore "github.com/crossplane/oam-kubernetes-runtime/apis/core/v1alpha2"
"github.com/google/uuid"
"github.com/onsi/ginkgo/v2"
"github.com/onsi/gomega"
clustersv1alpha1 "github.com/verrazzano/verrazzano/application-operator/apis/clusters/v1alpha1"
mcClient "github.com/verrazzano/verrazzano/cluster-operator/clientset/versioned"
"github.com/verrazzano/verrazzano/pkg/constants"
"github.com/verrazzano/verrazzano/pkg/k8sutil"
vzapi "github.com/verrazzano/verrazzano/platform-operator/apis/verrazzano/v1alpha1"
"github.com/verrazzano/verrazzano/tests/e2e/pkg"
yv3 "gopkg.in/yaml.v3"
corev1 "k8s.io/api/core/v1"
rbac "k8s.io/api/rbac/v1"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime/schema"
utilyaml "k8s.io/apimachinery/pkg/util/yaml"
"k8s.io/client-go/discovery"
"k8s.io/client-go/discovery/cached/memory"
"k8s.io/client-go/dynamic"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"k8s.io/client-go/restmapper"
"k8s.io/client-go/tools/clientcmd"
cmdapi "k8s.io/client-go/tools/clientcmd/api/v1"
yml "sigs.k8s.io/yaml"
)
const (
comps = "components"
mcAppConfigs = "multiclusterapplicationconfigurations"
mcNamespace = "verrazzano-mc"
projects = "verrazzanoprojects"
)
// DeployVerrazzanoProject deploys the VerrazzanoProject to the cluster with the given kubeConfig
func DeployVerrazzanoProject(projectConfiguration, kubeConfig string) error {
file, err := pkg.FindTestDataFile(projectConfiguration)
if err != nil {
return err
}
if err := resource.CreateOrUpdateResourceFromFileInCluster(file, kubeConfig); err != nil {
return fmt.Errorf("failed to create project resource: %v", err)
}
return nil
}
// TestNamespaceExists returns true if the test namespace exists in the given cluster
func TestNamespaceExists(kubeConfig string, namespace string) bool {
_, err := pkg.GetNamespaceInCluster(namespace, kubeConfig)
return err == nil
}
// DeployCompResource deploys the OAM Component resource to the cluster with the given kubeConfig
func DeployCompResource(compConfiguration, testNamespace, kubeConfig string) error {
file, err := pkg.FindTestDataFile(compConfiguration)
if err != nil {
return err
}
if err := resource.CreateOrUpdateResourceFromFileInClusterInGeneratedNamespace(file, kubeConfig, testNamespace); err != nil {
return fmt.Errorf("failed to create multi-cluster component resources: %v", err)
}
return nil
}
// DeployAppResource deploys the OAM Application resource to the cluster with the given kubeConfig
func DeployAppResource(appConfiguration, testNamespace, kubeConfig string) error {
file, err := pkg.FindTestDataFile(appConfiguration)
if err != nil {
return err
}
if err := resource.CreateOrUpdateResourceFromFileInClusterInGeneratedNamespace(file, kubeConfig, testNamespace); err != nil {
return fmt.Errorf("failed to create multi-cluster application resource: %v", err)
}
return nil
}
// VerifyMCResources verifies that the MC resources are present or absent depending on whether this is an admin
// cluster and whether the resources are placed in the given cluster
func VerifyMCResources(kubeConfig string, isAdminCluster bool, placedInThisCluster bool, namespace string, appConfigName string, expectedComps []string) bool {
// call both appConfExists and componentExists and store the results, to avoid short-circuiting
// since we should check both in all cases
mcAppConfExists := appConfExists(kubeConfig, namespace, appConfigName)
compExists := true
// check each component in expectedComps
for _, comp := range expectedComps {
compExists = componentExists(kubeConfig, namespace, comp) && compExists
}
if isAdminCluster || placedInThisCluster {
// always expect MC resources on admin cluster - otherwise expect them only if placed here
return mcAppConfExists && compExists
}
// don't expect either
return !mcAppConfExists && !compExists
}
// VerifyAppResourcesInCluster verifies that the app resources are either present or absent
// depending on whether the app is placed in this cluster
func VerifyAppResourcesInCluster(kubeConfig string, isAdminCluster bool, placedInThisCluster bool, projectName string, namespace string, appPods []string) (bool, error) {
projectExists := projectExists(kubeConfig, projectName)
podsRunning, err := checkPodsRunning(kubeConfig, namespace, appPods)
if err != nil {
return false, err
}
if placedInThisCluster {
return projectExists && podsRunning, nil
}
if isAdminCluster {
return projectExists && !podsRunning, nil
}
return !podsRunning && !projectExists, nil
}
// VerifyDeleteOnAdminCluster verifies that the app resources have been deleted from the admin
// cluster after the application has been deleted
func VerifyDeleteOnAdminCluster(kubeConfig string, placedInCluster bool, namespace string, projectName string, appConfigName string, appPods []string) bool {
mcResDeleted := verifyMCResourcesDeleted(kubeConfig, namespace, projectName, appConfigName, appPods)
if !placedInCluster {
return mcResDeleted
}
appDeleted := verifyAppDeleted(kubeConfig, namespace, appPods)
return mcResDeleted && appDeleted
}
// VerifyDeleteOnManagedCluster verifies that the app resources have been deleted from the managed
// cluster after the application has been deleted
func VerifyDeleteOnManagedCluster(kubeConfig string, namespace string, projectName string, appConfigName string, appPods []string) bool {
mcResDeleted := verifyMCResourcesDeleted(kubeConfig, namespace, projectName, appConfigName, appPods)
appDeleted := verifyAppDeleted(kubeConfig, namespace, appPods)
return mcResDeleted && appDeleted
}
// appConfExists Check if app config exists
func appConfExists(kubeConfig string, namespace string, appConfigName string) bool {
gvr := schema.GroupVersionResource{
Group: clustersv1alpha1.SchemeGroupVersion.Group,
Version: clustersv1alpha1.SchemeGroupVersion.Version,
Resource: mcAppConfigs,
}
return resourceExists(gvr, namespace, appConfigName, kubeConfig)
}
// resourceExists Check if given resource exists
func resourceExists(gvr schema.GroupVersionResource, ns string, name string, kubeConfig string) bool {
config, err := k8sutil.GetKubeConfigGivenPath(kubeConfig)
if err != nil {
pkg.Log(pkg.Error, fmt.Sprintf("Could not get kube config: %v\n", err))
return false
}
client, err := dynamic.NewForConfig(config)
if err != nil {
pkg.Log(pkg.Error, fmt.Sprintf("Could not create dynamic client: %v\n", err))
return false
}
u, err := client.Resource(gvr).Namespace(ns).Get(context.TODO(), name, metav1.GetOptions{})
if err != nil {
if errors.IsNotFound(err) {
return false
}
pkg.Log(pkg.Error, fmt.Sprintf("Could not retrieve resource %s: %v\n", gvr.String(), err))
return false
}
return u != nil
}
// componentExists Check if individual component exists
func componentExists(kubeConfig string, namespace string, component string) bool {
gvr := schema.GroupVersionResource{
Group: oamcore.Group,
Version: oamcore.Version,
Resource: comps,
}
return resourceExists(gvr, namespace, component, kubeConfig)
}
// projectExists Check if project with name projectName exists
func projectExists(kubeConfig string, projectName string) bool {
gvr := schema.GroupVersionResource{
Group: clustersv1alpha1.SchemeGroupVersion.Group,
Version: clustersv1alpha1.SchemeGroupVersion.Version,
Resource: projects,
}
return resourceExists(gvr, mcNamespace, projectName, kubeConfig)
}
// checkPodsRunning Check if expected pods are running on a given cluster
func checkPodsRunning(kubeConfig string, namespace string, appPods []string) (bool, error) {
result, err := pkg.PodsRunningInCluster(namespace, appPods, kubeConfig)
if err != nil {
pkg.Log(pkg.Error, fmt.Sprintf("One or more pods are not running in the namespace: %v, error: %v", namespace, err))
return false, err
}
return result, nil
}
// verifyAppDeleted verifies that the workload and pods are deleted on the specified cluster
func verifyAppDeleted(kubeConfig string, namespace string, appPods []string) bool {
podsDeleted := true
// check that each pod is deleted
for _, pod := range appPods {
podsDeleted = checkPodDeleted(namespace, pod, kubeConfig) && podsDeleted
}
return podsDeleted
}
// checkPodDeleted Check if expected pods are running on a given cluster
func checkPodDeleted(kubeConfig string, namespace string, pod string) bool {
deletedPod := []string{pod}
result, _ := pkg.PodsRunningInCluster(namespace, deletedPod, kubeConfig)
return !result
}
// verifyMCResourcesDeleted verifies that any resources created by the deployment are deleted on the specified cluster
func verifyMCResourcesDeleted(kubeConfig string, namespace string, projectName string, appConfigName string, appPods []string) bool {
appConfExists := appConfExists(kubeConfig, namespace, appConfigName)
projExists := projectExists(kubeConfig, projectName)
compExists := true
// check each component in appPods
for _, comp := range appPods {
compExists = componentExists(kubeConfig, namespace, comp) && compExists
}
return !appConfExists && !compExists && !projExists
}
const (
shortWait = 1 * time.Minute
mediumWait = 5 * time.Minute
pollingInterval = 5 * time.Second
manifestKey = "yaml"
)
type Cluster struct {
Name string
KubeConfigPath string
restConfig *rest.Config
kubeClient *kubernetes.Clientset
server string
}
func getCluster(name, kcfgDir string, count int) *Cluster {
kcfgPath := fmt.Sprintf("%s/%v/kube_config", kcfgDir, count)
if _, err := os.Stat(kcfgPath); errs.Is(err, os.ErrNotExist) {
return nil
}
return newCluster(name, kcfgPath)
}
func ManagedClusters() []*Cluster {
kcfgDir := os.Getenv("KUBECONFIG_DIR")
if kcfgDir == "" {
ginkgo.Fail("KUBECONFIG_DIR is required")
}
var clusters []*Cluster
count := 1
for {
name := fmt.Sprintf("managed%v", count)
count = count + 1
cluster := getCluster(name, kcfgDir, count)
if cluster == nil {
return clusters
}
clusters = append(clusters, cluster)
}
}
func AdminCluster() *Cluster {
admKubeCfg := os.Getenv("ADMIN_KUBECONFIG")
if admKubeCfg == "" {
admKubeCfg = os.Getenv("KUBECONFIG")
}
if admKubeCfg != "" {
return newCluster("admin", admKubeCfg)
}
return getCluster("admin", os.Getenv("KUBECONFIG_DIR"), 1)
}
func (c *Cluster) CreateNamespace(ns string) error {
_, err := c.kubeClient.CoreV1().Namespaces().Get(context.TODO(), ns, metav1.GetOptions{})
if err != nil && errors.IsNotFound(err) {
n := &corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: ns,
Namespace: ns,
},
}
_, err = c.kubeClient.CoreV1().Namespaces().Create(context.TODO(), n, metav1.CreateOptions{})
if err != nil {
pkg.Log(pkg.Error, fmt.Sprintf("CreateNS %v error: %v", n, err))
}
}
return err
}
func (c *Cluster) UpsertCaSec(managedClusterName string, bytes []byte) error {
c.CreateNamespace(constants.VerrazzanoMultiClusterNamespace)
casecName := fmt.Sprintf("ca-secret-%s", managedClusterName)
secret := &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: casecName,
Namespace: constants.VerrazzanoMultiClusterNamespace,
},
Type: corev1.SecretTypeOpaque,
Data: map[string][]byte{"cacrt": bytes},
}
_, err := c.kubeClient.CoreV1().Secrets(constants.VerrazzanoMultiClusterNamespace).Get(context.TODO(), casecName, metav1.GetOptions{})
if err != nil && errors.IsNotFound(err) {
_, err = c.kubeClient.CoreV1().Secrets(constants.VerrazzanoMultiClusterNamespace).Create(context.TODO(), secret, metav1.CreateOptions{})
} else {
_, err = c.kubeClient.CoreV1().Secrets(constants.VerrazzanoMultiClusterNamespace).Update(context.TODO(), secret, metav1.UpdateOptions{})
}
if err != nil {
pkg.Log(pkg.Error, fmt.Sprintf("UpsertCaSec %v error: %v", casecName, err))
}
return err
}
func (c *Cluster) CreateCaSecOf(managed *Cluster) error {
c.CreateNamespace(constants.VerrazzanoMultiClusterNamespace)
bytes, err := managed.getCacrt()
if err != nil {
pkg.Log(pkg.Error, fmt.Sprintf("Error getting %v cacrt: %v", managed.Name, err))
}
return c.UpsertCaSec(managed.Name, bytes)
}
func (c *Cluster) ConfigAdminCluster() error {
name := "verrazzano-admin-cluster"
cm := &corev1.ConfigMap{
ObjectMeta: metav1.ObjectMeta{
Name: name,
Namespace: constants.VerrazzanoMultiClusterNamespace,
},
Data: map[string]string{"server": c.server},
}
_, err := c.kubeClient.CoreV1().ConfigMaps(constants.VerrazzanoMultiClusterNamespace).Get(context.TODO(), name, metav1.GetOptions{})
if err != nil && errors.IsNotFound(err) {
_, err = c.kubeClient.CoreV1().ConfigMaps(constants.VerrazzanoMultiClusterNamespace).Create(context.TODO(), cm, metav1.CreateOptions{})
} else {
_, err = c.kubeClient.CoreV1().ConfigMaps(constants.VerrazzanoMultiClusterNamespace).Update(context.TODO(), cm, metav1.UpdateOptions{})
}
return err
}
func (c *Cluster) GetSecret(ns, name string) (*corev1.Secret, error) {
return c.kubeClient.CoreV1().Secrets(ns).Get(context.TODO(), name, metav1.GetOptions{})
}
func (c *Cluster) GetSecretData(ns, name, key string) ([]byte, error) {
secret, err := c.GetSecret(ns, name)
if secret == nil || err != nil {
return []byte{}, err
}
data, ok := secret.Data[key]
if !ok {
return []byte{}, fmt.Errorf("%s not found in %s", key, name)
}
return data, nil
}
func (c *Cluster) GetSecretDataAsString(ns, name, key string) string {
bytes, _ := c.GetSecretData(ns, name, key)
if len(bytes) > 0 {
return string(bytes)
}
return ""
}
func (c *Cluster) getCacrt() ([]byte, error) {
// cattle-system get secret tls-ca
data, err := c.GetSecretData(constants.RancherSystemNamespace, constants.RancherTLSCA, constants.RancherTLSCAKey)
if len(data) != 0 {
return data, err
}
return c.GetSecretData(constants.VerrazzanoSystemNamespace, "verrazzano-tls", "ca.crt")
}
func (c *Cluster) Apply(data []byte) {
gomega.Eventually(func() bool {
err := apply(data, c.restConfig)
if err != nil {
pkg.Log(pkg.Error, fmt.Sprintf("Error applying changes on %s: %v", c.Name, err))
}
return err == nil
}, mediumWait, pollingInterval).Should(gomega.BeTrue(), fmt.Sprintf(" %s failed registration", c.Name))
}
func (c *Cluster) UpsertManagedCluster(name string) error {
casec := fmt.Sprintf("ca-secret-%s", name)
vmc := &mcapi.VerrazzanoManagedCluster{
ObjectMeta: metav1.ObjectMeta{
Name: name,
Namespace: constants.VerrazzanoMultiClusterNamespace,
},
Spec: mcapi.VerrazzanoManagedClusterSpec{
Description: "VerrazzanoManagedCluster object",
CASecret: casec,
},
}
mcCli, err := mcClient.NewForConfig(c.restConfig)
if err != nil {
return err
}
_, err = mcCli.ClustersV1alpha1().
VerrazzanoManagedClusters(constants.VerrazzanoMultiClusterNamespace).Get(context.TODO(), name, metav1.GetOptions{})
if err != nil && errors.IsNotFound(err) {
_, err = mcCli.ClustersV1alpha1().
VerrazzanoManagedClusters(constants.VerrazzanoMultiClusterNamespace).
Create(context.TODO(), vmc, metav1.CreateOptions{})
} else {
_, err = mcCli.ClustersV1alpha1().
VerrazzanoManagedClusters(constants.VerrazzanoMultiClusterNamespace).
Update(context.TODO(), vmc, metav1.UpdateOptions{})
}
if err != nil {
return fmt.Errorf("failed to create or update VerrazzanoManagedCluster %v: %w", name, err)
}
gomega.Eventually(func() bool {
vmcCreated, err := mcCli.ClustersV1alpha1().
VerrazzanoManagedClusters(constants.VerrazzanoMultiClusterNamespace).
Get(context.TODO(), vmc.Name, metav1.GetOptions{})
if err != nil {
pkg.Log(pkg.Error, fmt.Sprintf("Error getting vmc %s: %v", vmc.Name, err))
}
size := len(vmcCreated.Status.Conditions)
if vmcCreated == nil || size == 0 {
return false
}
return vmcCreated.Status.Conditions[size-1].Type == mcapi.ConditionReady
}, mediumWait, pollingInterval).Should(gomega.BeTrue(), fmt.Sprintf("VerrazzanoManagedCluster %s is not ready", vmc.Name))
return nil
}
func (c *Cluster) Register(managed *Cluster) error {
err := c.CreateCaSecOf(managed)
if err != nil {
return nil
}
err = c.ConfigAdminCluster()
if err != nil {
return nil
}
err = c.UpsertManagedCluster(managed.Name)
if err != nil {
pkg.Log(pkg.Error, fmt.Sprintf("CreateManagedCluster %v error: %v", managed.Name, err))
}
reg, err := c.GetManifest(managed.Name)
if err != nil {
pkg.Log(pkg.Error, fmt.Sprintf("manifest %v error: %v", managed.Name, err))
}
managed.Apply(reg)
return nil
}
func (c *Cluster) GetVMC(name string) (*mcapi.VerrazzanoManagedCluster, error) {
mcCli, err := mcClient.NewForConfig(c.restConfig)
if err != nil {
return nil, err
}
return mcCli.ClustersV1alpha1().
VerrazzanoManagedClusters(constants.VerrazzanoMultiClusterNamespace).Get(context.TODO(), name, metav1.GetOptions{})
}
func (c *Cluster) GetManifest(name string) ([]byte, error) {
manifest := fmt.Sprintf("verrazzano-cluster-%s-manifest", name)
gomega.Eventually(func() bool {
data, _ := c.GetSecretData(constants.VerrazzanoMultiClusterNamespace, manifest, manifestKey)
return len(data) > 0
}, shortWait, pollingInterval).Should(gomega.BeTrue(), fmt.Sprintf("manifest %s is not ready", manifest))
return c.GetSecretData(constants.VerrazzanoMultiClusterNamespace, manifest, manifestKey)
}
func (c *Cluster) GetRegistration(name string) (*corev1.Secret, error) {
reg := fmt.Sprintf("verrazzano-cluster-%s-registration", name)
r, err := c.GetSecret(constants.VerrazzanoMultiClusterNamespace, reg)
if err != nil && errors.IsNotFound(err) {
return nil, err
}
return r, err
}
// GetCR gets the CR. If it is not "Ready", wait for up to 10 minutes for it to be "Ready".
func (c *Cluster) GetCR(waitForReady bool) *vzapi.Verrazzano {
if waitForReady {
gomega.Eventually(func() error {
cr, err := pkg.GetVerrazzanoInstallResourceInCluster(c.KubeConfigPath)
if err != nil {
return err
}
if cr.Status.State != vzapi.VzStateReady {
return fmt.Errorf("CR in state %s, not Ready yet", cr.Status.State)
}
return nil
}, 10*time.Minute, pollingInterval).Should(gomega.BeNil(), "Expected to get Verrazzano CR with Ready state")
}
// Get the CR
cr, err := pkg.GetVerrazzanoInstallResourceInCluster(c.KubeConfigPath)
if err != nil {
ginkgo.Fail(err.Error())
}
if cr == nil {
ginkgo.Fail("CR is nil")
}
return cr
}
// generate a custom CA
func (c *Cluster) GenerateCA() string {
caCertTemp := `
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
name: %s
namespace: cert-manager
spec:
commonName: %s
isCA: true
issuerRef:
name: verrazzano-selfsigned-issuer
secretName: %s
`
caname := fmt.Sprintf("gen-ca-%v", uuid.NewString()[:7])
cacert := fmt.Sprintf(caCertTemp, caname, caname, caname)
c.Apply([]byte(cacert))
gomega.Eventually(func() bool {
casec, err := c.GetSecret(constants.CertManagerNamespace, caname)
if err != nil || errors.IsNotFound(err) || casec == nil {
pkg.Log(pkg.Error, fmt.Sprintf("Error getting %s: %v", caname, err))
return false
}
return true
}, mediumWait, pollingInterval).Should(gomega.BeTrue(), fmt.Sprintf("Failed creating CA %v", caname))
return caname
}
func (c *Cluster) FindFluentdPod() *corev1.Pod {
list, _ := c.kubeClient.CoreV1().Pods(constants.VerrazzanoSystemNamespace).List(context.TODO(), metav1.ListOptions{})
if list != nil {
for _, pod := range list.Items {
if strings.HasPrefix(pod.Name, "fluentd-") {
return &pod
}
}
}
return nil
}
const errMsg = "Error: %v"
// FluentdLogs gets fluentd logs if the fluentd pod has been restarted sinc the time specified
func (c *Cluster) FluentdLogs(lines int64, restartedAfter time.Time) string {
pod := c.FindFluentdPod()
if pod == nil {
return fmt.Sprintf(errMsg, "cannot find fluentd pod")
}
return c.PodLogs(constants.VerrazzanoSystemNamespace, pod.Name, "fluentd", lines)
}
func (c *Cluster) PodLogs(ns, podName, container string, lines int64) string {
logsReg := c.kubeClient.CoreV1().Pods(ns).GetLogs(podName, &corev1.PodLogOptions{
Container: container,
Follow: false,
TailLines: &lines,
})
podLogs, err := logsReg.Stream(context.TODO())
if err != nil {
return fmt.Sprintf(errMsg, err)
}
if podLogs != nil {
defer podLogs.Close()
buf := new(bytes.Buffer)
_, err = io.Copy(buf, podLogs)
if err != nil {
return fmt.Sprintf(errMsg, err)
}
return buf.String()
}
return ""
}
func (c *Cluster) GetPrometheusIngress() string {
return pkg.GetPrometheusIngressHost(c.KubeConfigPath)
}
func (c *Cluster) GetThanosIngress() string {
return pkg.GetThanosQueryIngressHost(c.KubeConfigPath)
}
func (c *Cluster) GetQueryIngress() string {
return pkg.GetQueryStoreIngressHost(c.KubeConfigPath)
}
func newCluster(name, kubeCfgPath string) *Cluster {
server := serverFromDockerInspect(name)
if server == "" {
server = serverFromKubeConfig(kubeCfgPath, name)
}
cnf, err := clientcmd.BuildConfigFromFlags("", kubeCfgPath)
failOnErr := func(err error) {
if err != nil {
ginkgo.Fail(fmt.Sprintf("Error getting Cluster %v: %v", name, err))
}
}
failOnErr(err)
cli, err := kubernetes.NewForConfig(cnf)
failOnErr(err)
return &Cluster{Name: name, KubeConfigPath: kubeCfgPath, kubeClient: cli, server: server, restConfig: cnf}
}
func serverFromDockerInspect(name string) string {
cmd := exec.Command("docker", "inspect", fmt.Sprintf("%s-control-plane", name)) //nolint:gosec
out, err := cmd.Output()
if err == nil {
var info []map[string]interface{}
json.Unmarshal(out, &info)
if len(info) > 0 {
ipa := yq(info[0], "NetworkSettings", "Networks", "kind", "IPAddress")
if ipa != nil {
if addr, ok := ipa.(string); ok && addr != "" {
return fmt.Sprintf("https://%s:6443", addr)
}
}
}
}
return ""
}
func serverFromKubeConfig(kubeCfgPath, name string) string {
kubeServerConf := cmdapi.Config{}
cmd := exec.Command("kind", "get", "kubeconfig", "--internal", "--Name", name) //nolint:gosec
out, err := cmd.Output()
if err != nil {
out, _ = os.ReadFile(kubeCfgPath)
}
yv3.Unmarshal(out, &kubeServerConf)
for _, c := range kubeServerConf.Clusters {
return c.Cluster.Server
}
return ""
}
func apply(data []byte, config *rest.Config) error {
client, err := dynamic.NewForConfig(config)
if err != nil {
return fmt.Errorf("failed to create dynamic client: %w", err)
}
disco, err := discovery.NewDiscoveryClientForConfig(config)
if err != nil {
return fmt.Errorf("failed to create discovery client: %w", err)
}
mapper := restmapper.NewDeferredDiscoveryRESTMapper(memory.NewMemCacheClient(disco))
reader := utilyaml.NewYAMLReader(bufio.NewReader(bytes.NewReader(data)))
for {
uns := &unstructured.Unstructured{Object: map[string]interface{}{}}
unsMap, err := readYaml(reader, mapper, uns)
if err != nil {
return fmt.Errorf("failed to read resource from bytes: %w", err)
}
if unsMap == nil {
return nil
}
if err = upsert(client, config, uns, unsMap); err != nil {
pkg.Log(pkg.Error, fmt.Sprintf("Error upsert %s: %v \n", uns.GetName(), err))
return err
}
}
}
func upsert(client dynamic.Interface, config *rest.Config, uns *unstructured.Unstructured, unsMap *meta.RESTMapping) error {
var err error
if uns.GetNamespace() == "" {
_, err = client.Resource(unsMap.Resource).Create(context.TODO(), uns, metav1.CreateOptions{})
} else {
_, err = client.Resource(unsMap.Resource).Namespace(uns.GetNamespace()).Create(context.TODO(), uns, metav1.CreateOptions{})
}
if err != nil && errors.IsAlreadyExists(err) {
if err = update(client, uns, unsMap); err != nil {
return err
}
} else if err != nil {
if uns.GetKind() == "ClusterRoleBinding" {
if err = upsertCRB(config, uns); err != nil {
return err
}
} else {
msg := "failed to create resource: %v"
pkg.Log(pkg.Error, fmt.Sprintf(msg, err))
return fmt.Errorf(msg, err)
}
}
return nil
}
func update(client dynamic.Interface, uns *unstructured.Unstructured, unsMap *meta.RESTMapping) error {
resource, err := client.Resource(unsMap.Resource).Namespace(uns.GetNamespace()).Get(context.TODO(), uns.GetName(), metav1.GetOptions{})
if err != nil {
return fmt.Errorf("failed to get resource for update: %w", err)
}
uns.SetResourceVersion(resource.GetResourceVersion())
_, err = client.Resource(unsMap.Resource).Namespace(uns.GetNamespace()).Update(context.TODO(), uns, metav1.UpdateOptions{})
if err != nil && uns.GetKind() == "Service" && uns.GetName() == "cattle-cluster-agent" {
_ = client.Resource(unsMap.Resource).Namespace(uns.GetNamespace()).Delete(context.TODO(), uns.GetName(), metav1.DeleteOptions{})
uns.SetResourceVersion("")
_, err = client.Resource(unsMap.Resource).Namespace(uns.GetNamespace()).Create(context.TODO(), uns, metav1.CreateOptions{})
}
if err != nil {
return fmt.Errorf("failed to update resource: %w", err)
}
return nil
}
func upsertCRB(config *rest.Config, uns *unstructured.Unstructured) error {
cli, _ := kubernetes.NewForConfig(config)
crb := clusterRoleBinding(uns)
_, err := cli.RbacV1().ClusterRoleBindings().Get(context.TODO(), crb.Name, metav1.GetOptions{})
if err != nil && errors.IsNotFound(err) {
_, err = cli.RbacV1().ClusterRoleBindings().Create(context.TODO(), crb, metav1.CreateOptions{})
} else {
_, err = cli.RbacV1().ClusterRoleBindings().Update(context.TODO(), crb, metav1.UpdateOptions{})
}
if err != nil {
return fmt.Errorf("failed to create ClusterRoleBinding: %w", err)
}
return nil
}
func clusterRoleBinding(uns *unstructured.Unstructured) *rbac.ClusterRoleBinding {
rb := &rbac.ClusterRoleBinding{
ObjectMeta: metav1.ObjectMeta{
Name: uns.GetName(),
Namespace: uns.GetNamespace(),
Labels: uns.GetLabels(),
},
Subjects: []rbac.Subject{},
RoleRef: rbac.RoleRef{
Kind: yqString(uns.Object, "roleRef", "kind"),
Name: yqString(uns.Object, "roleRef", "name"),
APIGroup: yqString(uns.Object, "roleRef", "apiGroup"),
},
}
if rb.Name == "" {
rb.Name = yqString(uns.Object, "metadata", "name")
}
if rb.Namespace == "" {
rb.Namespace = yqString(uns.Object, "metadata", "namespace")
}
return crbSubjects(crbLables(rb, uns), uns)
}
func crbLables(rb *rbac.ClusterRoleBinding, uns *unstructured.Unstructured) *rbac.ClusterRoleBinding {
if len(rb.Labels) == 0 {
rb.Labels = map[string]string{}
labels := yq(uns.Object, "metadata", "labels")
if labels != nil {
for k, v := range labels.(map[interface{}]interface{}) {
rb.Labels[k.(string)] = v.(string)
}
}
}
return rb
}
func crbSubjects(rb *rbac.ClusterRoleBinding, uns *unstructured.Unstructured) *rbac.ClusterRoleBinding {
if sbj := yq(uns.Object, "subjects"); sbj != nil {
arr, ok := sbj.([]interface{})
if len(arr) > 0 && ok {
for _, i := range arr {
rb.Subjects = append(rb.Subjects, rbac.Subject{
Kind: yqString(i, "kind"),
Name: yqString(i, "name"),
Namespace: yqString(i, "namespace"),
})
}
}
}
return rb
}
func readYaml(reader *utilyaml.YAMLReader, mapper *restmapper.DeferredDiscoveryRESTMapper, uns *unstructured.Unstructured) (*meta.RESTMapping, error) {
buf, err := reader.Read()
if err == io.EOF {
return nil, nil
} else if err != nil {
return nil, fmt.Errorf("failed to read resource section: %w", err)
}
if err = yml.Unmarshal(buf, &uns.Object); err != nil {
return nil, fmt.Errorf("failed to unmarshal resource: %w", err)
}
unsGvk := schema.FromAPIVersionAndKind(uns.GetAPIVersion(), uns.GetKind())
unsMap, err := mapper.RESTMapping(unsGvk.GroupKind(), unsGvk.Version)
if err != nil {
return unsMap, fmt.Errorf("failed to map resource kind: %w", err)
}
return unsMap, nil
}
func yq(node interface{}, path ...string) interface{} {
for _, p := range path {
if node == nil {
return nil
}
var nodeMap, ok = node.(map[string]interface{})
if ok {
node = nodeMap[p]
} else {
n, ok := node.(map[interface{}]interface{})
if ok {
node = n[p]
} else {
return nil
}
}
}
return node
}
func yqString(node interface{}, path ...string) string {
val := yq(node, path...)
if val == nil {
return ""
}
if s, ok := val.(string); ok {
return s
}
return fmt.Sprintf("%v", val)
}