8e9af79030
Only use the first IP address got from instance metadata. This is because Azure CNI would setup a list of IP addresses in instance metata, while only the first one is the Node's IP.
340 lines
9.6 KiB
Go
340 lines
9.6 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package azure
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import (
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"context"
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"fmt"
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"net"
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"net/http"
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"reflect"
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"testing"
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"github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2018-10-01/compute"
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"github.com/Azure/go-autorest/autorest/to"
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/types"
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)
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// setTestVirtualMachines sets test virtual machine with powerstate.
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func setTestVirtualMachines(c *Cloud, vmList map[string]string) {
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virtualMachineClient := c.VirtualMachinesClient.(*fakeAzureVirtualMachinesClient)
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store := map[string]map[string]compute.VirtualMachine{
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"rg": make(map[string]compute.VirtualMachine),
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}
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for nodeName, powerState := range vmList {
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instanceID := fmt.Sprintf("/subscriptions/subscription/resourceGroups/rg/providers/Microsoft.Compute/virtualMachines/%s", nodeName)
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vm := compute.VirtualMachine{
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Name: &nodeName,
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ID: &instanceID,
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Location: &c.Location,
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}
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if powerState != "" {
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status := []compute.InstanceViewStatus{
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{
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Code: to.StringPtr(powerState),
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},
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{
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Code: to.StringPtr("ProvisioningState/succeeded"),
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},
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}
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vm.VirtualMachineProperties = &compute.VirtualMachineProperties{
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InstanceView: &compute.VirtualMachineInstanceView{
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Statuses: &status,
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},
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}
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}
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store["rg"][nodeName] = vm
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}
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virtualMachineClient.setFakeStore(store)
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}
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func TestInstanceID(t *testing.T) {
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cloud := getTestCloud()
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testcases := []struct {
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name string
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vmList []string
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nodeName string
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metadataName string
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expected string
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expectError bool
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}{
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{
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name: "InstanceID should get instanceID if node's name are equal to metadataName",
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vmList: []string{"vm1"},
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nodeName: "vm1",
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metadataName: "vm1",
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expected: "/subscriptions/subscription/resourceGroups/rg/providers/Microsoft.Compute/virtualMachines/vm1",
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},
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{
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name: "InstanceID should get instanceID from Azure API if node is not local instance",
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vmList: []string{"vm2"},
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nodeName: "vm2",
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metadataName: "vm1",
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expected: "/subscriptions/subscription/resourceGroups/rg/providers/Microsoft.Compute/virtualMachines/vm2",
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},
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{
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name: "InstanceID should report error if VM doesn't exist",
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vmList: []string{"vm1"},
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nodeName: "vm3",
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expectError: true,
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},
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}
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for _, test := range testcases {
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listener, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Errorf("Test [%s] unexpected error: %v", test.name, err)
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}
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mux := http.NewServeMux()
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mux.Handle("/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprintf(w, fmt.Sprintf(`{"compute":{"name":"%s"}}`, test.metadataName))
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}))
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go func() {
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http.Serve(listener, mux)
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}()
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defer listener.Close()
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cloud.metadata, err = NewInstanceMetadataService("http://" + listener.Addr().String() + "/")
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if err != nil {
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t.Errorf("Test [%s] unexpected error: %v", test.name, err)
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}
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vmListWithPowerState := make(map[string]string)
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for _, vm := range test.vmList {
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vmListWithPowerState[vm] = ""
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}
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setTestVirtualMachines(cloud, vmListWithPowerState)
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instanceID, err := cloud.InstanceID(context.Background(), types.NodeName(test.nodeName))
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if test.expectError {
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if err == nil {
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t.Errorf("Test [%s] unexpected nil err", test.name)
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}
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} else {
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if err != nil {
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t.Errorf("Test [%s] unexpected error: %v", test.name, err)
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}
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}
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if instanceID != test.expected {
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t.Errorf("Test [%s] unexpected instanceID: %s, expected %q", test.name, instanceID, test.expected)
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}
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}
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}
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func TestInstanceShutdownByProviderID(t *testing.T) {
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testcases := []struct {
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name string
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vmList map[string]string
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nodeName string
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expected bool
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expectError bool
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}{
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{
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name: "InstanceShutdownByProviderID should return false if the vm is in PowerState/Running status",
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vmList: map[string]string{"vm1": "PowerState/Running"},
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nodeName: "vm1",
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expected: false,
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},
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{
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name: "InstanceShutdownByProviderID should return true if the vm is in PowerState/Deallocated status",
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vmList: map[string]string{"vm2": "PowerState/Deallocated"},
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nodeName: "vm2",
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expected: true,
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},
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{
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name: "InstanceShutdownByProviderID should return false if the vm is in PowerState/Deallocating status",
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vmList: map[string]string{"vm3": "PowerState/Deallocating"},
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nodeName: "vm3",
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expected: false,
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},
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{
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name: "InstanceShutdownByProviderID should return false if the vm is in PowerState/Starting status",
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vmList: map[string]string{"vm4": "PowerState/Starting"},
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nodeName: "vm4",
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expected: false,
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},
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{
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name: "InstanceShutdownByProviderID should return true if the vm is in PowerState/Stopped status",
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vmList: map[string]string{"vm5": "PowerState/Stopped"},
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nodeName: "vm5",
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expected: true,
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},
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{
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name: "InstanceShutdownByProviderID should return false if the vm is in PowerState/Stopping status",
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vmList: map[string]string{"vm6": "PowerState/Stopping"},
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nodeName: "vm6",
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expected: false,
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},
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{
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name: "InstanceShutdownByProviderID should return false if the vm is in PowerState/Unknown status",
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vmList: map[string]string{"vm7": "PowerState/Unknown"},
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nodeName: "vm7",
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expected: false,
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},
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{
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name: "InstanceShutdownByProviderID should report error if VM doesn't exist",
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vmList: map[string]string{"vm1": "PowerState/running"},
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nodeName: "vm8",
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expectError: true,
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},
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}
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for _, test := range testcases {
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cloud := getTestCloud()
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setTestVirtualMachines(cloud, test.vmList)
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providerID := "azure://" + cloud.getStandardMachineID("rg", test.nodeName)
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hasShutdown, err := cloud.InstanceShutdownByProviderID(context.Background(), providerID)
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if test.expectError {
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if err == nil {
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t.Errorf("Test [%s] unexpected nil err", test.name)
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}
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} else {
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if err != nil {
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t.Errorf("Test [%s] unexpected error: %v", test.name, err)
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}
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}
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if hasShutdown != test.expected {
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t.Errorf("Test [%s] unexpected hasShutdown: %v, expected %v", test.name, hasShutdown, test.expected)
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}
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}
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}
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func TestNodeAddresses(t *testing.T) {
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cloud := getTestCloud()
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cloud.Config.UseInstanceMetadata = true
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metadataTemplate := `{"compute":{"name":"%s"},"network":{"interface":[{"ipv4":{"ipAddress":[{"privateIpAddress":"%s","publicIpAddress":"%s"}]},"ipv6":{"ipAddress":[{"privateIpAddress":"%s","publicIpAddress":"%s"}]}}]}}`
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testcases := []struct {
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name string
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nodeName string
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ipV4 string
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ipV6 string
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ipV4Public string
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ipV6Public string
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expected []v1.NodeAddress
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expectError bool
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}{
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{
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name: "NodeAddresses should get both ipV4 and ipV6 private addresses",
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nodeName: "vm1",
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ipV4: "10.240.0.1",
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ipV6: "1111:11111:00:00:1111:1111:000:111",
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expected: []v1.NodeAddress{
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{
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Type: v1.NodeHostName,
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Address: "vm1",
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},
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{
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Type: v1.NodeInternalIP,
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Address: "10.240.0.1",
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},
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{
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Type: v1.NodeInternalIP,
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Address: "1111:11111:00:00:1111:1111:000:111",
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},
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},
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},
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{
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name: "NodeAddresses should report error when IPs are empty",
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nodeName: "vm1",
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expectError: true,
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},
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{
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name: "NodeAddresses should get ipV4 private and public addresses",
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nodeName: "vm1",
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ipV4: "10.240.0.1",
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ipV4Public: "9.9.9.9",
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expected: []v1.NodeAddress{
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{
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Type: v1.NodeHostName,
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Address: "vm1",
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},
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{
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Type: v1.NodeInternalIP,
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Address: "10.240.0.1",
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},
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{
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Type: v1.NodeExternalIP,
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Address: "9.9.9.9",
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},
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},
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},
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{
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name: "NodeAddresses should get ipV6 private and public addresses",
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nodeName: "vm1",
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ipV6: "1111:11111:00:00:1111:1111:000:111",
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ipV6Public: "2222:22221:00:00:2222:2222:000:111",
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expected: []v1.NodeAddress{
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{
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Type: v1.NodeHostName,
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Address: "vm1",
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},
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{
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Type: v1.NodeInternalIP,
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Address: "1111:11111:00:00:1111:1111:000:111",
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},
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{
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Type: v1.NodeExternalIP,
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Address: "2222:22221:00:00:2222:2222:000:111",
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},
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},
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},
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}
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for _, test := range testcases {
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listener, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Errorf("Test [%s] unexpected error: %v", test.name, err)
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}
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mux := http.NewServeMux()
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mux.Handle("/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprintf(w, fmt.Sprintf(metadataTemplate, test.nodeName, test.ipV4, test.ipV4Public, test.ipV6, test.ipV6Public))
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}))
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go func() {
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http.Serve(listener, mux)
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}()
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defer listener.Close()
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cloud.metadata, err = NewInstanceMetadataService("http://" + listener.Addr().String() + "/")
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if err != nil {
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t.Errorf("Test [%s] unexpected error: %v", test.name, err)
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}
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ipAddresses, err := cloud.NodeAddresses(context.Background(), types.NodeName(test.nodeName))
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if test.expectError {
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if err == nil {
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t.Errorf("Test [%s] unexpected nil err", test.name)
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}
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} else {
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if err != nil {
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t.Errorf("Test [%s] unexpected error: %v", test.name, err)
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}
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}
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if !reflect.DeepEqual(ipAddresses, test.expected) {
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t.Errorf("Test [%s] unexpected ipAddresses: %s, expected %q", test.name, ipAddresses, test.expected)
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}
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}
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}
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