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Merge pull request #81262 from levimm/fixUpdateServiceDNSLabel

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fix azure load balancer update dns label issue
This commit is contained in:
Kubernetes Prow Robot 2019-08-15 04:00:36 -07:00 committed by GitHub
commit b5d33fa9bd
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2 changed files with 65 additions and 24 deletions
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64
staging/src/k8s.io/legacy-cloud-providers/azure/azure_loadbalancer.go
View File

@ -492,41 +492,52 @@ func (az *Cloud) ensurePublicIPExists(service *v1.Service, pipName string, domai
if err != nil {
return nil, err
}
if existsPip {
return &pip, nil
}
serviceName := getServiceName(service)
if shouldPIPExisted {
return nil, fmt.Errorf("PublicIP from annotation azure-pip-name=%s for service %s doesn't exist", pipName, serviceName)
if existsPip {
// return if pip exist and dns label is the same
if getDomainNameLabel(&pip) == domainNameLabel {
return &pip, nil
}
klog.V(2).Infof("ensurePublicIPExists for service(%s): pip(%s) - updating", serviceName, *pip.Name)
if pip.PublicIPAddressPropertiesFormat == nil {
pip.PublicIPAddressPropertiesFormat = &network.PublicIPAddressPropertiesFormat{
PublicIPAllocationMethod: network.Static,
}
}
} else {
if shouldPIPExisted {
return nil, fmt.Errorf("PublicIP from annotation azure-pip-name=%s for service %s doesn't exist", pipName, serviceName)
}
pip.Name = to.StringPtr(pipName)
pip.Location = to.StringPtr(az.Location)
pip.PublicIPAddressPropertiesFormat = &network.PublicIPAddressPropertiesFormat{
PublicIPAllocationMethod: network.Static,
}
pip.Tags = map[string]*string{
serviceTagKey: &serviceName,
clusterNameKey: &clusterName,
}
if az.useStandardLoadBalancer() {
pip.Sku = &network.PublicIPAddressSku{
Name: network.PublicIPAddressSkuNameStandard,
}
}
klog.V(2).Infof("ensurePublicIPExists for service(%s): pip(%s) - creating", serviceName, *pip.Name)
}
pip.Name = to.StringPtr(pipName)
pip.Location = to.StringPtr(az.Location)
pip.PublicIPAddressPropertiesFormat = &network.PublicIPAddressPropertiesFormat{
PublicIPAllocationMethod: network.Static,
}
if len(domainNameLabel) > 0 {
if len(domainNameLabel) == 0 {
pip.PublicIPAddressPropertiesFormat.DNSSettings = nil
} else {
pip.PublicIPAddressPropertiesFormat.DNSSettings = &network.PublicIPAddressDNSSettings{
DomainNameLabel: &domainNameLabel,
}
}
pip.Tags = map[string]*string{
serviceTagKey: &serviceName,
clusterNameKey: &clusterName,
}
if az.useStandardLoadBalancer() {
pip.Sku = &network.PublicIPAddressSku{
Name: network.PublicIPAddressSkuNameStandard,
}
}
klog.V(2).Infof("ensurePublicIPExists for service(%s): pip(%s) - creating", serviceName, *pip.Name)
klog.V(10).Infof("CreateOrUpdatePIP(%s, %q): start", pipResourceGroup, *pip.Name)
err = az.CreateOrUpdatePIP(service, pipResourceGroup, pip)
if err != nil {
klog.V(2).Infof("ensure(%s) abort backoff: pip(%s) - creating", serviceName, *pip.Name)
klog.V(2).Infof("ensure(%s) abort backoff: pip(%s)", serviceName, *pip.Name)
return nil, err
}
klog.V(10).Infof("CreateOrUpdatePIP(%s, %q): end", pipResourceGroup, *pip.Name)
@ -540,6 +551,13 @@ func (az *Cloud) ensurePublicIPExists(service *v1.Service, pipName string, domai
return &pip, nil
}
func getDomainNameLabel(pip *network.PublicIPAddress) string {
if pip == nil || pip.PublicIPAddressPropertiesFormat == nil || pip.PublicIPAddressPropertiesFormat.DNSSettings == nil {
return ""
}
return to.String(pip.PublicIPAddressPropertiesFormat.DNSSettings.DomainNameLabel)
}
func getIdleTimeout(s *v1.Service) (*int32, error) {
const (
min = 4

25
staging/src/k8s.io/legacy-cloud-providers/azure/azure_loadbalancer_test.go
View File

@ -1833,6 +1833,7 @@ func TestEnsurePublicIPExists(t *testing.T) {
existingPIPs []network.PublicIPAddress
expectedPIP *network.PublicIPAddress
expectedID string
expectedDNS string
expectedError bool
}{
{
@ -1849,6 +1850,28 @@ func TestEnsurePublicIPExists(t *testing.T) {
expectedID: "/subscriptions/subscription/resourceGroups/rg/providers/" +
"Microsoft.Network/publicIPAddresses/pip1",
},
{
desc: "ensurePublicIPExists shall update existed PIP's dns label",
existingPIPs: []network.PublicIPAddress{{
Name: to.StringPtr("pip1"),
PublicIPAddressPropertiesFormat: &network.PublicIPAddressPropertiesFormat{
DNSSettings: &network.PublicIPAddressDNSSettings{
DomainNameLabel: to.StringPtr("previousdns"),
},
},
}},
expectedPIP: &network.PublicIPAddress{
Name: to.StringPtr("pip1"),
ID: to.StringPtr("/subscriptions/subscription/resourceGroups/rg" +
"/providers/Microsoft.Network/publicIPAddresses/pip1"),
PublicIPAddressPropertiesFormat: &network.PublicIPAddressPropertiesFormat{
DNSSettings: &network.PublicIPAddressDNSSettings{
DomainNameLabel: to.StringPtr("newdns"),
},
},
},
expectedDNS: "newdns",
},
}
for i, test := range testCases {
@ -1860,7 +1883,7 @@ func TestEnsurePublicIPExists(t *testing.T) {
t.Fatalf("TestCase[%d] meets unexpected error: %v", i, err)
}
}
pip, err := az.ensurePublicIPExists(&service, "pip1", "", "", false)
pip, err := az.ensurePublicIPExists(&service, "pip1", test.expectedDNS, "", false)
if test.expectedID != "" {
assert.Equal(t, test.expectedID, to.String(pip.ID), "TestCase[%d]: %s", i, test.desc)
} else {