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connect.go
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connect.go
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package cluster
import (
"context"
"encoding/json"
"fmt"
"time"
"github.com/redhat-developer/app-services-cli/pkg/core/ioutil/color"
"github.com/redhat-developer/app-services-cli/pkg/core/ioutil/icon"
"github.com/redhat-developer/app-services-cli/pkg/core/localize"
"github.com/redhat-developer/app-services-cli/pkg/shared/cluster/constants"
"github.com/redhat-developer/app-services-cli/pkg/shared/cluster/kubeclient"
"github.com/redhat-developer/app-services-cli/pkg/shared/cluster/services"
"github.com/redhat-developer/app-services-cli/pkg/shared/cluster/v1alpha"
"github.com/AlecAivazis/survey/v2"
"github.com/golang-jwt/jwt/v4"
"github.com/redhat-developer/app-services-cli/internal/build"
svcacctmgmtclient "github.com/redhat-developer/app-services-sdk-core/app-services-sdk-go/serviceaccountmgmt/apiv1/client"
apiv1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/watch"
)
// Connect connects a remote Kafka instance to the Kubernetes cluster
func (api *KubernetesClusterAPIImpl) ExecuteConnect(connectOpts *v1alpha.ConnectOperationOptions) error {
var currentNamespace string
var err error
if connectOpts.Namespace != "" {
currentNamespace = connectOpts.Namespace
} else {
currentNamespace, err = api.KubernetesClients.CurrentNamespace()
if err != nil {
return kubeclient.TranslatedKubernetesErrors(api.CommandEnvironment, err)
}
}
cliOpts := api.CommandEnvironment
// Creates abstraction of the service
currentService, err := api.createServiceInstance(connectOpts.ServiceType)
if err != nil {
return err
}
serviceDetails, err := currentService.BuildServiceDetails(
connectOpts.ServiceName, currentNamespace, connectOpts.IgnoreContext)
if err != nil {
return err
}
if serviceDetails == nil {
return nil
}
// print status
cliOpts.Logger.Info(cliOpts.Localizer.MustLocalize("cluster.kubernetes.log.info.statusMessage"))
cliOpts.Logger.Info(cliOpts.Localizer.MustLocalize("cluster.kubernetes.statusInfo",
localize.NewEntry("ServiceType", color.Info(serviceDetails.Type)),
localize.NewEntry("ServiceName", color.Info(serviceDetails.Name)),
localize.NewEntry("Namespace", color.Info(currentNamespace)),
localize.NewEntry("ServiceAccountSecretName", color.Info(constants.ServiceAccountSecretName))))
if !connectOpts.ForceCreationWithoutAsk {
var shouldContinue bool
confirm := &survey.Confirm{
Message: cliOpts.Localizer.MustLocalize("cluster.kubernetes.input.confirm.message"),
}
err = survey.AskOne(confirm, &shouldContinue)
if err != nil {
return err
}
if !shouldContinue {
cliOpts.Logger.Debug(cliOpts.Localizer.MustLocalize("cluster.kubernetes.log.debug.cancellingOperation"))
return nil
}
}
// Token with auth for operator to pick
err = api.createTokenSecretIfNeeded(currentNamespace, connectOpts.OfflineAccessToken)
if err != nil {
return kubeclient.TranslatedKubernetesErrors(api.CommandEnvironment, err)
}
clientID, err := api.createServiceAccountSecretIfNeeded(currentNamespace)
if err != nil {
return kubeclient.TranslatedKubernetesErrors(api.CommandEnvironment, err)
}
if clientID != "" {
currentService.PrintAccessCommands(clientID)
}
err = api.createCustomResource(serviceDetails, currentNamespace)
if err != nil {
return kubeclient.TranslatedKubernetesErrors(api.CommandEnvironment, err)
}
return nil
}
// createCustomResource
func (api *KubernetesClusterAPIImpl) createCustomResource(serviceDetails *services.ServiceDetails, namespace string) error {
crJSON, err := json.Marshal(serviceDetails.KubernetesResource)
if err != nil {
return fmt.Errorf("%v: %w", api.CommandEnvironment.Localizer.MustLocalize("cluster.kubernetes.createCR.error.marshalError"), err)
}
data := api.KubernetesClients.Clientset.
RESTClient().
Post().
AbsPath(kubeclient.APIURLForResource(&serviceDetails.GroupMetadata, namespace), serviceDetails.Name).
Body(crJSON).
Do(api.CommandEnvironment.Context)
err = data.Error()
if err != nil {
return kubeclient.TranslatedKubernetesErrors(api.CommandEnvironment, err)
}
api.CommandEnvironment.Logger.Info(icon.SuccessPrefix(),
api.CommandEnvironment.Localizer.MustLocalize("cluster.kubernetes.createCR.log.info.customResourceCreated",
localize.NewEntry("Resource", serviceDetails.Type),
localize.NewEntry("Name", serviceDetails.Name)))
return api.watchForServiceStatus(serviceDetails, namespace)
}
func (c *KubernetesClusterAPIImpl) createTokenSecretIfNeeded(namespace string, accessToken string) error {
cliOpts := c.CommandEnvironment
kClients := c.KubernetesClients
ctx := cliOpts.Context
_, err := kClients.Clientset.CoreV1().Secrets(namespace).Get(ctx, constants.TokenSecretName, metav1.GetOptions{})
if err == nil {
cliOpts.Logger.Info(cliOpts.Localizer.MustLocalize("cluster.kubernetes.tokensecret.log.info.found"), constants.TokenSecretName)
return nil
}
if accessToken == "" && !cliOpts.IO.CanPrompt() {
return cliOpts.Localizer.MustLocalizeError("flag.error.requiredWhenNonInteractive", localize.NewEntry("Flag", "token"))
}
if accessToken == "" {
apiTokenInput := &survey.Input{
Message: cliOpts.Localizer.MustLocalize("cluster.common.flag.offline.token.description", localize.NewEntry("OfflineTokenURL", build.OfflineTokenURL)),
}
surveyErr := survey.AskOne(apiTokenInput, &accessToken)
if surveyErr != nil {
return surveyErr
}
}
parser := new(jwt.Parser)
_, _, err = parser.ParseUnverified(accessToken, jwt.MapClaims{})
if err != nil {
return err
}
// Create secret type
secret := &apiv1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: constants.TokenSecretName,
Namespace: namespace,
},
StringData: map[string]string{
"value": accessToken,
},
}
_, err = kClients.Clientset.CoreV1().Secrets(namespace).Create(ctx, secret, metav1.CreateOptions{})
tokenSecretNameTmplEntry := localize.NewEntry("Name", constants.TokenSecretName)
if err != nil {
return fmt.Errorf("%v: %w", cliOpts.Localizer.MustLocalize("cluster.kubernetes.createTokenSecret.log.info.createFailed", tokenSecretNameTmplEntry), err)
}
cliOpts.Logger.Info(icon.SuccessPrefix(), cliOpts.Localizer.MustLocalize("cluster.kubernetes.createTokenSecret.log.info.createSuccess", tokenSecretNameTmplEntry))
return nil
}
// createSecret creates a new secret to store the SASL/PLAIN credentials from the service account
func (c *KubernetesClusterAPIImpl) createServiceAccountSecretIfNeeded(namespace string) (string, error) {
cliOpts := c.CommandEnvironment
kClients := c.KubernetesClients
ctx := cliOpts.Context
_, err := kClients.Clientset.CoreV1().Secrets(namespace).Get(context.TODO(), constants.ServiceAccountSecretName, metav1.GetOptions{})
if err == nil {
cliOpts.Logger.Info(cliOpts.Localizer.MustLocalize("cluster.kubernetes.serviceaccountsecret.log.info.exist"))
return "", nil
}
serviceAcct, err := c.createServiceAccount(ctx, cliOpts)
if err != nil {
return "", err
}
secret := &apiv1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: constants.ServiceAccountSecretName,
Namespace: namespace,
},
StringData: map[string]string{
"client-id": serviceAcct.GetClientId(),
"client-secret": serviceAcct.GetSecret(),
},
}
createdSecret, err := kClients.Clientset.CoreV1().Secrets(namespace).Create(cliOpts.Context, secret, metav1.CreateOptions{})
if err != nil {
return "", fmt.Errorf("%v: %w", cliOpts.Localizer.MustLocalize("cluster.kubernetes.serviceaccountsecret.error.createError"), err)
}
cliOpts.Logger.Info(icon.SuccessPrefix(), cliOpts.Localizer.MustLocalize("cluster.kubernetes.createSASecret.log.info.createSuccess",
localize.NewEntry("Name", createdSecret.Name),
localize.NewEntry("ClientID", serviceAcct.GetClientId()),
))
return serviceAcct.GetClientId(), nil
}
// createServiceAccount creates a service account
func (c *KubernetesClusterAPIImpl) createServiceAccount(ctx context.Context, cliOpts *v1alpha.CommandEnvironment) (*svcacctmgmtclient.ServiceAccountData, error) {
t := time.Now()
api := cliOpts.Connection.API()
serviceAcct := &svcacctmgmtclient.ServiceAccountCreateRequestData{Name: fmt.Sprintf("rhoascli-%v", t.Unix())}
req := api.ServiceAccountMgmt().CreateServiceAccount(ctx)
req = req.ServiceAccountCreateRequestData(*serviceAcct)
serviceAcctRes, httpRes, err := req.Execute()
if httpRes != nil {
defer httpRes.Body.Close()
}
if err != nil {
return nil, fmt.Errorf("%v: %w", cliOpts.Localizer.MustLocalize("cluster.kubernetes.createServiceAccount.error.createError"), err)
}
return &serviceAcctRes, nil
}
func (api *KubernetesClusterAPIImpl) watchForServiceStatus(
serviceDetails *services.ServiceDetails, namespace string) error {
localizer := api.CommandEnvironment.Localizer
logger := api.CommandEnvironment.Logger
logger.Info(localizer.MustLocalize("cluster.kubernetes.watchForResourceStatus.log.info.wait",
localize.NewEntry("Resource", serviceDetails.Type)))
w, err := api.KubernetesClients.DynamicClient.
Resource(serviceDetails.GroupMetadata).
Namespace(namespace).Watch(api.CommandEnvironment.Context, metav1.ListOptions{
FieldSelector: fields.OneTermEqualSelector("metadata.name", serviceDetails.Name).String(),
})
if err != nil {
return err
}
for {
select {
case event := <-w.ResultChan():
if event.Type == watch.Modified {
unstructuredObj, err := runtime.DefaultUnstructuredConverter.ToUnstructured(event.Object)
if err != nil {
return err
}
conditions, found, err := unstructured.NestedSlice(unstructuredObj, "status", "conditions")
if err != nil {
return err
}
if found {
for _, condition := range conditions {
typedCondition, ok := condition.(map[string]interface{})
if !ok {
return fmt.Errorf(
localizer.MustLocalize("cluster.kubernetes.watchForResourceStatus.error.status",
localize.NewEntry("Resource", serviceDetails.Type)), typedCondition)
}
if typedCondition["type"].(string) == "Finished" {
if typedCondition["status"].(string) == "False" {
w.Stop()
return fmt.Errorf(
localizer.MustLocalize("cluster.kubernetes.watchForResourceStatus.error.status",
localize.NewEntry("Resource", serviceDetails.Type)),
typedCondition["message"])
}
if typedCondition["status"].(string) == "True" {
logger.Info(icon.SuccessPrefix(),
localizer.MustLocalize("cluster.kubernetes.watchForResourceStatus.log.info.success"))
w.Stop()
return nil
}
}
}
w.Stop()
}
}
case <-time.After(60 * time.Second):
w.Stop()
return fmt.Errorf(localizer.MustLocalize("cluster.kubernetes.watchForResourceStatus.error.timeout", localize.NewEntry("Resource", serviceDetails.Type)))
}
}
}