Merge pull request #66429 from andyzhangx/acr-sp-fix

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

fix acr could not be listed in sp issue

**What this PR does / why we need it**:
after granting sp access to azure ACR , pull image from ACR would fail, and after wait about 15-30min(or restart kubelet directly), pull image would succeed. Root cause is that `servicePrincipalToken` needs to be refreshed when doing `registryClient.List`, otherwise it will always return empty registry list. Pull image error would be like following:
```
Events:
  Type     Reason                 Age              From                               Message
  ----     ------                 ----             ----                               -------
  Warning  FailedScheduling       8m (x3 over 8m)  default-scheduler                  0/1 nodes are available: 1 Insufficient cpu.
  Normal   Scheduled              8m               default-scheduler                  Successfully assigned nginx-server-776564f79c-zhtjk to aks-nodepool1-20881069-0
  Normal   SuccessfulMountVolume  8m               kubelet, aks-nodepool1-20881069-0  MountVolume.SetUp succeeded for volume "default-token-4t7tk"
  Normal   SuccessfulMountVolume  8m               kubelet, aks-nodepool1-20881069-0  MountVolume.SetUp succeeded for volume "pvc-5c1f0521-739f-11e8-9b69-0a58ac1f09c2"
  Warning  Failed                 8m (x5 over 8m)  kubelet, aks-nodepool1-20881069-0  Error: ImagePullBackOff
  Normal   BackOff                8m (x5 over 8m)  kubelet, aks-nodepool1-20881069-0  Back-off pulling image "andyacr.azurecr.io/nginx-server:1.0.0"
  Warning  Failed                 8m (x2 over 8m)  kubelet, aks-nodepool1-20881069-0  Error: ErrImagePull
  Warning  Failed                 8m (x2 over 8m)  kubelet, aks-nodepool1-20881069-0  Failed to pull image "andyacr.azurecr.io/nginx-server:1.0.0": rpc error: code = Unknown desc = Error response from daemon: Get https://andyacr.azurecr.io/v2/nginx-server/manifests/1.0.0: unauthorized: authentication required
```

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #65225

**Special notes for your reviewer**:
After discuss with dong, `registryClient.List` won't be necessary, instead we return `{"*.azurecr.io", "*.azurecr.cn", "*.azurecr.de", "*.azurecr.us"}` like aws, gce code logic, it will do the url matching.
I will cherry pick this PR to all supported version, every version has this issue.

**Release note**:

```
fix acr could not be listed in sp issue
```

/sig azure
/assign @feiskyer @khenidak @brendandburns @karataliu

pkg/credentialprovider/azure/azure_credentials.go

@@ -40,6 +40,8 @@ var flagConfigFile = pflag.String("azure-container-registry-config", "",
 
 const dummyRegistryEmail = "name@contoso.com"
 
+var containerRegistryUrls = []string{"*.azurecr.io", "*.azurecr.cn", "*.azurecr.de", "*.azurecr.us"}
+
 // init registers the various means by which credentials may
 // be resolved on Azure.
 func init() {
@@ -176,31 +178,33 @@ func (a *acrProvider) Provide() credentialprovider.DockerConfig {
 	ctx, cancel := getContextWithCancel()
 	defer cancel()
 
-	glog.V(4).Infof("listing registries")
-	result, err := a.registryClient.List(ctx)
-	if err != nil {
-		glog.Errorf("Failed to list registries: %v", err)
-		return cfg
-	}
+	if a.config.UseManagedIdentityExtension {
+		glog.V(4).Infof("listing registries")
+		result, err := a.registryClient.List(ctx)
+		if err != nil {
+			glog.Errorf("Failed to list registries: %v", err)
+			return cfg
+		}
 
-	for ix := range result {
-		loginServer := getLoginServer(result[ix])
-		var cred *credentialprovider.DockerConfigEntry
-
-		if a.config.UseManagedIdentityExtension {
-			cred, err = getACRDockerEntryFromARMToken(a, loginServer)
+		for ix := range result {
+			loginServer := getLoginServer(result[ix])
+			glog.V(2).Infof("loginServer: %s", loginServer)
+			cred, err := getACRDockerEntryFromARMToken(a, loginServer)
 			if err != nil {
 				continue
 			}
-		} else {
-			cred = &credentialprovider.DockerConfigEntry{
+			cfg[loginServer] = *cred
+		}
+	} else {
+		// Add our entry for each of the supported container registry URLs
+		for _, url := range containerRegistryUrls {
+			cred := &credentialprovider.DockerConfigEntry{
 				Username: a.config.AADClientID,
 				Password: a.config.AADClientSecret,
 				Email:    dummyRegistryEmail,
 			}
+			cfg[url] = *cred
 		}
-
-		cfg[loginServer] = *cred
 	}
 	return cfg
 }

pkg/credentialprovider/azure/azure_credentials_test.go

@@ -43,19 +43,25 @@ func Test(t *testing.T) {
 		{
 			Name: to.StringPtr("foo"),
 			RegistryProperties: &containerregistry.RegistryProperties{
-				LoginServer: to.StringPtr("foo-microsoft.azurecr.io"),
+				LoginServer: to.StringPtr("*.azurecr.io"),
 			},
 		},
 		{
 			Name: to.StringPtr("bar"),
 			RegistryProperties: &containerregistry.RegistryProperties{
-				LoginServer: to.StringPtr("bar-microsoft.azurecr.io"),
+				LoginServer: to.StringPtr("*.azurecr.cn"),
 			},
 		},
 		{
 			Name: to.StringPtr("baz"),
 			RegistryProperties: &containerregistry.RegistryProperties{
-				LoginServer: to.StringPtr("baz-microsoft.azurecr.io"),
+				LoginServer: to.StringPtr("*.azurecr.de"),
+			},
+		},
+		{
+			Name: to.StringPtr("bus"),
+			RegistryProperties: &containerregistry.RegistryProperties{
+				LoginServer: to.StringPtr("*.azurecr.us"),
 			},
 		},
 	}