/
harbor_robot_account_controller.go
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/
harbor_robot_account_controller.go
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package controllers
import (
"bytes"
"context"
"encoding/json"
"fmt"
"net/http"
"reflect"
"strings"
"time"
"go.f110.dev/xerrors"
"go.uber.org/zap"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"k8s.io/client-go/tools/cache"
"k8s.io/client-go/tools/portforward"
"k8s.io/client-go/transport/spdy"
"go.f110.dev/mono/go/api/harborv1alpha1"
"go.f110.dev/mono/go/enumerable"
"go.f110.dev/mono/go/harbor"
"go.f110.dev/mono/go/k8s/client"
"go.f110.dev/mono/go/k8s/controllers/controllerutil"
"go.f110.dev/mono/go/logger"
)
const (
harborRobotAccountControllerFinalizerName = "harbor-project-controller.harbor.f110.dev/robot-account-finalizer"
)
type HarborRobotAccountController struct {
*controllerutil.ControllerBase
config *rest.Config
coreClient kubernetes.Interface
hClient *client.HarborV1alpha1
hraLister *client.HarborV1alpha1HarborRobotAccountLister
harborService *corev1.Service
adminPassword string
transport http.RoundTripper
runOutsideCluster bool
}
func NewHarborRobotAccountController(
ctx context.Context,
coreClient kubernetes.Interface,
apiClient *client.Set,
cfg *rest.Config,
factory *client.InformerFactory,
harborNamespace,
harborName,
adminSecretName string,
runOutsideCluster bool,
) (*HarborRobotAccountController, error) {
adminSecret, err := coreClient.CoreV1().Secrets(harborNamespace).Get(ctx, adminSecretName, metav1.GetOptions{})
if err != nil {
return nil, xerrors.WithStack(err)
}
svc, err := coreClient.CoreV1().Services(harborNamespace).Get(ctx, harborName, metav1.GetOptions{})
if err != nil {
return nil, xerrors.WithStack(err)
}
informers := client.NewHarborV1alpha1Informer(factory.Cache(), apiClient.HarborV1alpha1, metav1.NamespaceAll, 30*time.Second)
hraInformer := informers.HarborRobotAccountInformer()
c := &HarborRobotAccountController{
config: cfg,
coreClient: coreClient,
hClient: apiClient.HarborV1alpha1,
hraLister: informers.HarborRobotAccountLister(),
harborService: svc,
adminPassword: string(adminSecret.Data["HARBOR_ADMIN_PASSWORD"]),
runOutsideCluster: runOutsideCluster,
}
c.ControllerBase = controllerutil.NewBase(
"harbor-robot-account-controller",
c,
coreClient,
[]cache.SharedIndexInformer{hraInformer},
[]cache.SharedIndexInformer{},
[]string{harborRobotAccountControllerFinalizerName},
)
return c, nil
}
func (c *HarborRobotAccountController) ObjectToKeys(obj interface{}) []string {
hra, ok := obj.(*harborv1alpha1.HarborRobotAccount)
if !ok {
return nil
}
key, err := cache.MetaNamespaceKeyFunc(hra)
if err != nil {
return nil
}
return []string{key}
}
func (c *HarborRobotAccountController) GetObject(key string) (runtime.Object, error) {
namespace, name, err := cache.SplitMetaNamespaceKey(key)
if err != nil {
return nil, xerrors.WithStack(err)
}
hra, err := c.hraLister.Get(namespace, name)
if err != nil {
return nil, xerrors.WithStack(err)
}
return hra, nil
}
func (c *HarborRobotAccountController) UpdateObject(ctx context.Context, obj runtime.Object) (runtime.Object, error) {
hra := obj.(*harborv1alpha1.HarborRobotAccount)
hra, err := c.hClient.UpdateHarborRobotAccount(ctx, hra, metav1.UpdateOptions{})
if err != nil {
return nil, xerrors.WithStack(err)
}
return hra, nil
}
func (c *HarborRobotAccountController) Reconcile(ctx context.Context, obj runtime.Object) error {
currentHRA := obj.(*harborv1alpha1.HarborRobotAccount)
harborRobotAccount := currentHRA.DeepCopy()
project, err := c.getProject(ctx, harborRobotAccount)
if err != nil {
return err
}
if project.Status.ProjectId == 0 {
c.Log().Info("Project is not shipped yet", logger.KubernetesObject("project", project))
return nil
}
if harborRobotAccount.Status.Ready {
return nil
}
harborClient, err := c.harborClient(ctx)
if err != nil {
return xerrors.WithStack(err)
}
accounts, err := harborClient.GetRobotAccounts(project.Status.ProjectId)
if err != nil {
return xerrors.WithStack(err)
}
created := false
for _, v := range accounts {
if strings.HasSuffix(v.Name, "$"+harborRobotAccount.Name) {
c.Log().Info("Account already exists", zap.String("name", v.Name))
created = true
}
}
if !created {
if err := c.createRobotAccount(ctx, harborClient, project, harborRobotAccount); err != nil {
return xerrors.WithStack(err)
}
}
accounts, err = harborClient.GetRobotAccounts(project.Status.ProjectId)
if err != nil {
return xerrors.WithStack(err)
}
for _, v := range accounts {
if strings.HasSuffix(v.Name, "$"+harborRobotAccount.Name) {
harborRobotAccount.Status.RobotId = v.Id
}
}
harborRobotAccount.Status.Ready = true
if !reflect.DeepEqual(harborRobotAccount.Status, currentHRA.Status) {
_, err = c.hClient.UpdateStatusHarborRobotAccount(ctx, harborRobotAccount, metav1.UpdateOptions{})
if err != nil {
return xerrors.WithStack(err)
}
}
return nil
}
func (c *HarborRobotAccountController) getProject(ctx context.Context, hra *harborv1alpha1.HarborRobotAccount) (*harborv1alpha1.HarborProject, error) {
project, err := c.hClient.GetHarborProject(ctx, hra.Spec.ProjectNamespace, hra.Spec.ProjectName, metav1.GetOptions{})
if err != nil && apierrors.IsNotFound(err) {
c.Log().Info("Project not found", logger.KubernetesObject("project", hra))
return nil, xerrors.New("project not found")
} else if err != nil {
return nil, xerrors.WithStack(err)
}
return project, nil
}
func (c *HarborRobotAccountController) harborClient(ctx context.Context) (*harbor.Harbor, error) {
harborHost := fmt.Sprintf("http://%s.%s.svc", c.harborService.Name, c.harborService.Namespace)
if c.runOutsideCluster {
pf, err := c.portForward(ctx, c.harborService, 8080)
if err != nil {
return nil, xerrors.WithStack(err)
}
defer pf.Close()
ports, err := pf.GetPorts()
if err != nil {
return nil, xerrors.WithStack(err)
}
harborHost = fmt.Sprintf("http://127.0.0.1:%d", ports[0].Local)
}
harborClient := harbor.New(harborHost, "admin", c.adminPassword)
if c.transport != nil {
harborClient.SetTransport(c.transport)
}
return harborClient, nil
}
func (c *HarborRobotAccountController) createRobotAccount(ctx context.Context, client *harbor.Harbor, project *harborv1alpha1.HarborProject, robotAccount *harborv1alpha1.HarborRobotAccount) error {
newAccount, err := client.CreateRobotAccount(
project.Status.ProjectId,
&harbor.NewRobotAccountRequest{
Name: robotAccount.Name,
Access: []harbor.Access{
{Resource: fmt.Sprintf("/project/%d/repository", project.Status.ProjectId), Action: "push"},
{Resource: fmt.Sprintf("/project/%d/repository", project.Status.ProjectId), Action: "pull"},
},
},
)
if err != nil {
return xerrors.WithStack(err)
}
dockerConfig := NewDockerConfig(project.Status.Registry, newAccount.Name, newAccount.Token)
configBuf := new(bytes.Buffer)
if err := json.NewEncoder(configBuf).Encode(dockerConfig); err != nil {
return xerrors.WithStack(err)
}
newSecret := &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: robotAccount.Spec.SecretName,
Namespace: robotAccount.Namespace,
OwnerReferences: []metav1.OwnerReference{*metav1.NewControllerRef(robotAccount, harborv1alpha1.SchemaGroupVersion.WithKind("HarborRobotAccount"))},
},
Type: corev1.SecretTypeDockerConfigJson,
Data: map[string][]byte{
".dockerconfigjson": configBuf.Bytes(),
},
}
_, err = c.coreClient.CoreV1().Secrets(newSecret.Namespace).Create(ctx, newSecret, metav1.CreateOptions{})
if err != nil {
return xerrors.WithStack(err)
}
return nil
}
func (c *HarborRobotAccountController) Finalize(ctx context.Context, obj runtime.Object) error {
hra := obj.(*harborv1alpha1.HarborRobotAccount)
project, err := c.getProject(ctx, hra)
if err != nil {
return xerrors.WithStack(err)
}
harborClient, err := c.harborClient(ctx)
if err != nil {
return xerrors.WithStack(err)
}
if err := harborClient.DeleteRobotAccount(project.Status.ProjectId, hra.Status.RobotId); err != nil {
return xerrors.WithStack(err)
}
hra.Finalizers = enumerable.Delete(hra.Finalizers, harborRobotAccountControllerFinalizerName)
_, err = c.hClient.UpdateHarborRobotAccount(ctx, hra, metav1.UpdateOptions{})
if err != nil {
return xerrors.WithStack(err)
}
return nil
}
func (c *HarborRobotAccountController) portForward(ctx context.Context, svc *corev1.Service, port int) (*portforward.PortForwarder, error) {
selector := labels.SelectorFromSet(svc.Spec.Selector)
podList, err := c.coreClient.CoreV1().Pods(svc.Namespace).List(ctx, metav1.ListOptions{LabelSelector: selector.String()})
if err != nil {
return nil, xerrors.WithStack(err)
}
var pod *corev1.Pod
for i, v := range podList.Items {
if v.Status.Phase == corev1.PodRunning {
pod = &podList.Items[i]
break
}
}
if pod == nil {
return nil, xerrors.New("all pods are not running yet")
}
req := c.coreClient.CoreV1().RESTClient().Post().Resource("pods").Namespace(svc.Namespace).Name(pod.Name).SubResource("portforward")
transport, upgrader, err := spdy.RoundTripperFor(c.config)
if err != nil {
return nil, xerrors.WithStack(err)
}
dialer := spdy.NewDialer(upgrader, &http.Client{Transport: transport}, http.MethodPost, req.URL())
readyCh := make(chan struct{})
pf, err := portforward.New(dialer, []string{fmt.Sprintf(":%d", port)}, context.Background().Done(), readyCh, nil, nil)
if err != nil {
return nil, xerrors.WithStack(err)
}
go func() {
err := pf.ForwardPorts()
if err != nil {
c.Log().Warn("Failed port forwarding", zap.Error(err))
switch err.(type) {
case *apierrors.StatusError:
c.Log().Info("Got error", zap.Error(err))
}
}
}()
select {
case <-readyCh:
case <-time.After(5 * time.Second):
return nil, xerrors.New("timed out")
}
return pf, nil
}