Fix splitProviderID for Azure

pkg/cloudprovider/providers/azure/azure_test.go

@@ -779,7 +779,7 @@ func TestSplitProviderID(t *testing.T) {
 	}{
 		{
 			providerID: CloudProviderName + ":///subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/myResourceGroupName/providers/Microsoft.Compute/virtualMachines/k8s-agent-AAAAAAAA-0",
-			name:       "/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/myResourceGroupName/providers/Microsoft.Compute/virtualMachines/k8s-agent-AAAAAAAA-0",
+			name:       "k8s-agent-AAAAAAAA-0",
 			fail:       false,
 		},
 		{

pkg/cloudprovider/providers/azure/azure_util.go

@@ -46,7 +46,7 @@ const (
 	securityRuleIDTemplate      = "/subscriptions/%s/resourceGroups/%s/providers/Microsoft.Network/networkSecurityGroups/%s/securityRules/%s"
 )
 
-var providerIDRE = regexp.MustCompile(`^` + CloudProviderName + `://(.+)$`)
+var providerIDRE = regexp.MustCompile(`^` + CloudProviderName + `://(?:.*)/Microsoft.Compute/virtualMachines/(.+)$`)
 
 // returns the full identifier of a machine
 func (az *Cloud) getMachineID(machineName string) string {