func TestSnapshot(t *testing.T) {
pr, err := util.ParsePortRange("10000-10200")
if err != nil {
t.Fatal(err)
}
r := NewPortAllocator(*pr)
ports := []int{}
for i := 0; i < 10; i++ {
port, err := r.AllocateNext()
if err != nil {
t.Fatal(err)
}
ports = append(ports, port)
}
var dst api.RangeAllocation
err = r.Snapshot(&dst)
if err != nil {
t.Fatal(err)
}
pr2, err := util.ParsePortRange(dst.Range)
if err != nil {
t.Fatal(err)
}
if pr.String() != pr2.String() {
t.Fatalf("mismatched networks: %s : %s", pr, pr2)
}
otherPr, err := util.ParsePortRange("200-300")
if err != nil {
t.Fatal(err)
}
other := NewPortAllocator(*otherPr)
if err := r.Restore(*otherPr, dst.Data); err != ErrMismatchedNetwork {
t.Fatal(err)
}
other = NewPortAllocator(*pr2)
if err := other.Restore(*pr2, dst.Data); err != nil {
t.Fatal(err)
}
for _, n := range ports {
if !other.Has(n) {
t.Errorf("restored range does not have %s", n)
}
}
if other.Free() != r.Free() {
t.Errorf("counts do not match: %d", other.Free())
}
}
func ValidateKubernetesMasterConfig(config *api.KubernetesMasterConfig) ValidationResults {
validationResults := ValidationResults{}
if len(config.MasterIP) > 0 {
validationResults.AddErrors(ValidateSpecifiedIP(config.MasterIP, "masterIP")...)
}
if config.MasterCount == 0 || config.MasterCount < -1 {
validationResults.AddErrors(fielderrors.NewFieldInvalid("masterCount", config.MasterCount, "must be a positive integer or -1"))
}
validationResults.AddErrors(ValidateCertInfo(config.ProxyClientInfo, false).Prefix("proxyClientInfo")...)
if len(config.ProxyClientInfo.CertFile) == 0 && len(config.ProxyClientInfo.KeyFile) == 0 {
validationResults.AddWarnings(fielderrors.NewFieldInvalid("proxyClientInfo", "", "if no client certificate is specified, TLS pods and services cannot validate requests came from the proxy"))
}
if len(config.ServicesSubnet) > 0 {
if _, _, err := net.ParseCIDR(strings.TrimSpace(config.ServicesSubnet)); err != nil {
validationResults.AddErrors(fielderrors.NewFieldInvalid("servicesSubnet", config.ServicesSubnet, "must be a valid CIDR notation IP range (e.g. 172.30.0.0/16)"))
}
}
if len(config.ServicesNodePortRange) > 0 {
if _, err := util.ParsePortRange(strings.TrimSpace(config.ServicesNodePortRange)); err != nil {
validationResults.AddErrors(fielderrors.NewFieldInvalid("servicesNodePortRange", config.ServicesNodePortRange, "must be a valid port range (e.g. 30000-32000)"))
}
}
if len(config.SchedulerConfigFile) > 0 {
validationResults.AddErrors(ValidateFile(config.SchedulerConfigFile, "schedulerConfigFile")...)
}
for i, nodeName := range config.StaticNodeNames {
if len(nodeName) == 0 {
validationResults.AddErrors(fielderrors.NewFieldInvalid(fmt.Sprintf("staticNodeName[%d]", i), nodeName, "may not be empty"))
}
}
if len(config.PodEvictionTimeout) > 0 {
if _, err := time.ParseDuration(config.PodEvictionTimeout); err != nil {
validationResults.AddErrors(fielderrors.NewFieldInvalid("podEvictionTimeout", config.PodEvictionTimeout, "must be a valid time duration string (e.g. '300ms' or '2m30s'). Valid time units are 'ns', 'us', 'ms', 's', 'm', 'h'"))
}
}
validationResults.Append(ValidateAPILevels(config.APILevels, api.KnownKubernetesAPILevels, api.DeadKubernetesAPILevels, "apiLevels"))
validationResults.AddErrors(ValidateAPIServerExtendedArguments(config.APIServerArguments).Prefix("apiServerArguments")...)
validationResults.AddErrors(ValidateControllerExtendedArguments(config.ControllerArguments).Prefix("controllerArguments")...)
return validationResults
}
func TestAllocate(t *testing.T) {
pr, err := util.ParsePortRange("10000-10200")
if err != nil {
t.Fatal(err)
}
r := NewPortAllocator(*pr)
if f := r.Free(); f != 201 {
t.Errorf("unexpected free %d", f)
}
found := util.NewStringSet()
count := 0
for r.Free() > 0 {
p, err := r.AllocateNext()
if err != nil {
t.Fatalf("error @ %d: %v", count, err)
}
count++
if !pr.Contains(p) {
t.Fatalf("allocated %s which is outside of %s", p, pr)
}
if found.Has(strconv.Itoa(p)) {
t.Fatalf("allocated %s twice @ %d", p, count)
}
found.Insert(strconv.Itoa(p))
}
if _, err := r.AllocateNext(); err != ErrFull {
t.Fatal(err)
}
released := 10005
if err := r.Release(released); err != nil {
t.Fatal(err)
}
if f := r.Free(); f != 1 {
t.Errorf("unexpected free %d", f)
}
p, err := r.AllocateNext()
if err != nil {
t.Fatal(err)
}
if released != p {
t.Errorf("unexpected %s : %s", p, released)
}
if err := r.Release(released); err != nil {
t.Fatal(err)
}
if err := r.Allocate(1); err != ErrNotInRange {
t.Fatal(err)
}
if err := r.Allocate(10001); err != ErrAllocated {
t.Fatal(err)
}
if err := r.Allocate(20000); err != ErrNotInRange {
t.Fatal(err)
}
if err := r.Allocate(10201); err != ErrNotInRange {
t.Fatal(err)
}
if f := r.Free(); f != 1 {
t.Errorf("unexpected free %d", f)
}
if err := r.Allocate(released); err != nil {
t.Fatal(err)
}
if f := r.Free(); f != 0 {
t.Errorf("unexpected free %d", f)
}
}
func BuildKubernetesMasterConfig(options configapi.MasterConfig, requestContextMapper kapi.RequestContextMapper, kubeClient *kclient.Client) (*MasterConfig, error) {
if options.KubernetesMasterConfig == nil {
return nil, errors.New("insufficient information to build KubernetesMasterConfig")
}
// Connect and setup etcd interfaces
etcdClient, err := etcd.EtcdClient(options.EtcdClientInfo)
if err != nil {
return nil, err
}
kubeletClientConfig := configapi.GetKubeletClientConfig(options)
kubeletClient, err := kclient.NewKubeletClient(kubeletClientConfig)
if err != nil {
return nil, fmt.Errorf("unable to configure Kubelet client: %v", err)
}
// in-order list of plug-ins that should intercept admission decisions
// TODO: Push node environment support to upstream in future
_, portString, err := net.SplitHostPort(options.ServingInfo.BindAddress)
if err != nil {
return nil, err
}
port, err := strconv.Atoi(portString)
if err != nil {
return nil, err
}
portRange, err := util.ParsePortRange(options.KubernetesMasterConfig.ServicesNodePortRange)
if err != nil {
return nil, err
}
podEvictionTimeout, err := time.ParseDuration(options.KubernetesMasterConfig.PodEvictionTimeout)
if err != nil {
return nil, fmt.Errorf("unable to parse PodEvictionTimeout: %v", err)
}
server := app.NewAPIServer()
server.EventTTL = 2 * time.Hour
server.ServiceClusterIPRange = net.IPNet(flagtypes.DefaultIPNet(options.KubernetesMasterConfig.ServicesSubnet))
server.ServiceNodePortRange = *portRange
server.AdmissionControl = strings.Join(AdmissionPlugins, ",")
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubernetesMasterConfig.APIServerArguments, server.AddFlags); len(err) > 0 {
return nil, kerrors.NewAggregate(err)
}
cmserver := cmapp.NewCMServer()
cmserver.PodEvictionTimeout = podEvictionTimeout
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubernetesMasterConfig.ControllerArguments, cmserver.AddFlags); len(err) > 0 {
return nil, kerrors.NewAggregate(err)
}
cloud, err := cloudprovider.InitCloudProvider(cmserver.CloudProvider, cmserver.CloudConfigFile)
if err != nil {
return nil, err
}
if cloud != nil {
glog.V(2).Infof("Successfully initialized cloud provider: %q from the config file: %q\n", server.CloudProvider, server.CloudConfigFile)
}
plugins := []admission.Interface{}
for _, pluginName := range strings.Split(server.AdmissionControl, ",") {
switch pluginName {
case saadmit.PluginName:
// we need to set some custom parameters on the service account admission controller, so create that one by hand
saAdmitter := saadmit.NewServiceAccount(kubeClient)
saAdmitter.LimitSecretReferences = options.ServiceAccountConfig.LimitSecretReferences
saAdmitter.Run()
plugins = append(plugins, saAdmitter)
default:
plugin := admission.InitPlugin(pluginName, kubeClient, server.AdmissionControlConfigFile)
if plugin != nil {
plugins = append(plugins, plugin)
}
}
}
admissionController := admission.NewChainHandler(plugins...)
var proxyClientCerts []tls.Certificate
if len(options.KubernetesMasterConfig.ProxyClientInfo.CertFile) > 0 {
clientCert, err := tls.LoadX509KeyPair(
options.KubernetesMasterConfig.ProxyClientInfo.CertFile,
options.KubernetesMasterConfig.ProxyClientInfo.KeyFile,
)
if err != nil {
return nil, err
}
proxyClientCerts = append(proxyClientCerts, clientCert)
}
// TODO you have to know every APIGroup you're enabling or upstream will panic. It's alternative to panicing is Fataling
// It needs a refactor to return errors
storageDestinations := master.NewStorageDestinations()
// storageVersions is a map from API group to allowed versions that must be a version exposed by the REST API or it breaks.
// We need to fix the upstream to stop using the storage version as a preferred api version.
storageVersions := map[string]string{}
enabledKubeVersions := configapi.GetEnabledAPIVersionsForGroup(*options.KubernetesMasterConfig, configapi.APIGroupKube)
enabledKubeVersionSet := sets.NewString(enabledKubeVersions...)
if len(enabledKubeVersions) > 0 {
databaseStorage, err := master.NewEtcdStorage(etcdClient, kapilatest.InterfacesForLegacyGroup, options.EtcdStorageConfig.KubernetesStorageVersion, options.EtcdStorageConfig.KubernetesStoragePrefix)
if err != nil {
return nil, fmt.Errorf("Error setting up Kubernetes server storage: %v", err)
}
storageDestinations.AddAPIGroup(configapi.APIGroupKube, databaseStorage)
storageVersions[configapi.APIGroupKube] = options.EtcdStorageConfig.KubernetesStorageVersion
}
enabledExtensionsVersions := configapi.GetEnabledAPIVersionsForGroup(*options.KubernetesMasterConfig, configapi.APIGroupExtensions)
if len(enabledExtensionsVersions) > 0 {
groupMeta, err := kapilatest.Group(configapi.APIGroupExtensions)
if err != nil {
return nil, fmt.Errorf("Error setting up Kubernetes extensions server storage: %v", err)
}
// TODO expose storage version options for api groups
databaseStorage, err := master.NewEtcdStorage(etcdClient, groupMeta.InterfacesFor, groupMeta.GroupVersion, options.EtcdStorageConfig.KubernetesStoragePrefix)
if err != nil {
return nil, fmt.Errorf("Error setting up Kubernetes extensions server storage: %v", err)
}
storageDestinations.AddAPIGroup(configapi.APIGroupExtensions, databaseStorage)
storageVersions[configapi.APIGroupExtensions] = enabledExtensionsVersions[0]
}
m := &master.Config{
PublicAddress: net.ParseIP(options.KubernetesMasterConfig.MasterIP),
ReadWritePort: port,
StorageDestinations: storageDestinations,
StorageVersions: storageVersions,
EventTTL: server.EventTTL,
//MinRequestTimeout: server.MinRequestTimeout,
ServiceClusterIPRange: (*net.IPNet)(&server.ServiceClusterIPRange),
ServiceNodePortRange: server.ServiceNodePortRange,
RequestContextMapper: requestContextMapper,
KubeletClient: kubeletClient,
APIPrefix: KubeAPIPrefix,
APIGroupPrefix: KubeAPIGroupPrefix,
EnableCoreControllers: true,
MasterCount: options.KubernetesMasterConfig.MasterCount,
Authorizer: apiserver.NewAlwaysAllowAuthorizer(),
AdmissionControl: admissionController,
EnableExp: len(enabledExtensionsVersions) > 0,
DisableV1: !enabledKubeVersionSet.Has("v1"),
// Set the TLS options for proxying to pods and services
// Proxying to nodes uses the kubeletClient TLS config (so can provide a different cert, and verify the node hostname)
ProxyTLSClientConfig: &tls.Config{
// Proxying to pods and services cannot verify hostnames, since they are contacted on randomly allocated IPs
InsecureSkipVerify: true,
Certificates: proxyClientCerts,
},
}
// set for consistency -- Origin only used m.EnableExp
cmserver.EnableExperimental = m.EnableExp
if options.DNSConfig != nil {
_, dnsPortStr, err := net.SplitHostPort(options.DNSConfig.BindAddress)
if err != nil {
return nil, fmt.Errorf("unable to parse DNS bind address %s: %v", options.DNSConfig.BindAddress, err)
}
dnsPort, err := strconv.Atoi(dnsPortStr)
if err != nil {
return nil, fmt.Errorf("invalid DNS port: %v", err)
}
m.ExtraServicePorts = append(m.ExtraServicePorts,
kapi.ServicePort{Name: "dns", Port: dnsPort, Protocol: kapi.ProtocolUDP, TargetPort: util.NewIntOrStringFromInt(dnsPort)},
kapi.ServicePort{Name: "dns-tcp", Port: dnsPort, Protocol: kapi.ProtocolTCP, TargetPort: util.NewIntOrStringFromInt(dnsPort)},
)
m.ExtraEndpointPorts = append(m.ExtraEndpointPorts,
kapi.EndpointPort{Name: "dns", Port: dnsPort, Protocol: kapi.ProtocolUDP},
kapi.EndpointPort{Name: "dns-tcp", Port: dnsPort, Protocol: kapi.ProtocolTCP},
)
}
kmaster := &MasterConfig{
Options: *options.KubernetesMasterConfig,
KubeClient: kubeClient,
Master: m,
ControllerManager: cmserver,
CloudProvider: cloud,
}
return kmaster, nil
}
func BuildKubernetesMasterConfig(options configapi.MasterConfig, requestContextMapper kapi.RequestContextMapper, kubeClient *kclient.Client) (*MasterConfig, error) {
if options.KubernetesMasterConfig == nil {
return nil, errors.New("insufficient information to build KubernetesMasterConfig")
}
// Connect and setup etcd interfaces
etcdClient, err := etcd.EtcdClient(options.EtcdClientInfo)
if err != nil {
return nil, err
}
databaseStorage, err := master.NewEtcdStorage(etcdClient, kapilatest.InterfacesFor, options.EtcdStorageConfig.KubernetesStorageVersion, options.EtcdStorageConfig.KubernetesStoragePrefix)
if err != nil {
return nil, fmt.Errorf("Error setting up Kubernetes server storage: %v", err)
}
kubeletClientConfig := configapi.GetKubeletClientConfig(options)
kubeletClient, err := kclient.NewKubeletClient(kubeletClientConfig)
if err != nil {
return nil, fmt.Errorf("unable to configure Kubelet client: %v", err)
}
// in-order list of plug-ins that should intercept admission decisions
// TODO: Push node environment support to upstream in future
_, portString, err := net.SplitHostPort(options.ServingInfo.BindAddress)
if err != nil {
return nil, err
}
port, err := strconv.Atoi(portString)
if err != nil {
return nil, err
}
portRange, err := util.ParsePortRange(options.KubernetesMasterConfig.ServicesNodePortRange)
if err != nil {
return nil, err
}
podEvictionTimeout, err := time.ParseDuration(options.KubernetesMasterConfig.PodEvictionTimeout)
if err != nil {
return nil, fmt.Errorf("unable to parse PodEvictionTimeout: %v", err)
}
server := app.NewAPIServer()
server.EventTTL = 2 * time.Hour
server.ServiceClusterIPRange = net.IPNet(flagtypes.DefaultIPNet(options.KubernetesMasterConfig.ServicesSubnet))
server.ServiceNodePortRange = *portRange
server.AdmissionControl = strings.Join(AdmissionPlugins, ",")
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubernetesMasterConfig.APIServerArguments, server.AddFlags); len(err) > 0 {
return nil, kerrors.NewAggregate(err)
}
cmserver := cmapp.NewCMServer()
cmserver.PodEvictionTimeout = podEvictionTimeout
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubernetesMasterConfig.ControllerArguments, cmserver.AddFlags); len(err) > 0 {
return nil, kerrors.NewAggregate(err)
}
cloud, err := cloudprovider.InitCloudProvider(cmserver.CloudProvider, cmserver.CloudConfigFile)
if err != nil {
return nil, err
}
plugins := []admission.Interface{}
for _, pluginName := range strings.Split(server.AdmissionControl, ",") {
switch pluginName {
case saadmit.PluginName:
// we need to set some custom parameters on the service account admission controller, so create that one by hand
saAdmitter := saadmit.NewServiceAccount(kubeClient)
saAdmitter.LimitSecretReferences = options.ServiceAccountConfig.LimitSecretReferences
saAdmitter.Run()
plugins = append(plugins, saAdmitter)
default:
plugin := admission.InitPlugin(pluginName, kubeClient, server.AdmissionControlConfigFile)
if plugin != nil {
plugins = append(plugins, plugin)
}
}
}
admissionController := admission.NewChainHandler(plugins...)
var proxyClientCerts []tls.Certificate
if len(options.KubernetesMasterConfig.ProxyClientInfo.CertFile) > 0 {
clientCert, err := tls.LoadX509KeyPair(
options.KubernetesMasterConfig.ProxyClientInfo.CertFile,
options.KubernetesMasterConfig.ProxyClientInfo.KeyFile,
)
if err != nil {
return nil, err
}
proxyClientCerts = append(proxyClientCerts, clientCert)
}
m := &master.Config{
PublicAddress: net.ParseIP(options.KubernetesMasterConfig.MasterIP),
ReadWritePort: port,
DatabaseStorage: databaseStorage,
ExpDatabaseStorage: databaseStorage,
EventTTL: server.EventTTL,
//MinRequestTimeout: server.MinRequestTimeout,
ServiceClusterIPRange: (*net.IPNet)(&server.ServiceClusterIPRange),
ServiceNodePortRange: server.ServiceNodePortRange,
RequestContextMapper: requestContextMapper,
KubeletClient: kubeletClient,
APIPrefix: KubeAPIPrefix,
EnableCoreControllers: true,
MasterCount: options.KubernetesMasterConfig.MasterCount,
Authorizer: apiserver.NewAlwaysAllowAuthorizer(),
AdmissionControl: admissionController,
EnableV1Beta3: configapi.HasKubernetesAPILevel(*options.KubernetesMasterConfig, "v1beta3"),
DisableV1: !configapi.HasKubernetesAPILevel(*options.KubernetesMasterConfig, "v1"),
// Set the TLS options for proxying to pods and services
// Proxying to nodes uses the kubeletClient TLS config (so can provide a different cert, and verify the node hostname)
ProxyTLSClientConfig: &tls.Config{
// Proxying to pods and services cannot verify hostnames, since they are contacted on randomly allocated IPs
InsecureSkipVerify: true,
Certificates: proxyClientCerts,
},
}
kmaster := &MasterConfig{
Options: *options.KubernetesMasterConfig,
KubeClient: kubeClient,
Master: m,
ControllerManager: cmserver,
CloudProvider: cloud,
}
return kmaster, nil
}
func ValidateKubernetesMasterConfig(config *api.KubernetesMasterConfig) ValidationResults {
validationResults := ValidationResults{}
if len(config.MasterIP) > 0 {
validationResults.AddErrors(ValidateSpecifiedIP(config.MasterIP, "masterIP")...)
}
if config.MasterCount == 0 || config.MasterCount < -1 {
validationResults.AddErrors(fielderrors.NewFieldInvalid("masterCount", config.MasterCount, "must be a positive integer or -1"))
}
validationResults.AddErrors(ValidateCertInfo(config.ProxyClientInfo, false).Prefix("proxyClientInfo")...)
if len(config.ProxyClientInfo.CertFile) == 0 && len(config.ProxyClientInfo.KeyFile) == 0 {
validationResults.AddWarnings(fielderrors.NewFieldInvalid("proxyClientInfo", "", "if no client certificate is specified, TLS pods and services cannot validate requests came from the proxy"))
}
if len(config.ServicesSubnet) > 0 {
if _, _, err := net.ParseCIDR(strings.TrimSpace(config.ServicesSubnet)); err != nil {
validationResults.AddErrors(fielderrors.NewFieldInvalid("servicesSubnet", config.ServicesSubnet, "must be a valid CIDR notation IP range (e.g. 172.30.0.0/16)"))
}
}
if len(config.ServicesNodePortRange) > 0 {
if _, err := util.ParsePortRange(strings.TrimSpace(config.ServicesNodePortRange)); err != nil {
validationResults.AddErrors(fielderrors.NewFieldInvalid("servicesNodePortRange", config.ServicesNodePortRange, "must be a valid port range (e.g. 30000-32000)"))
}
}
if len(config.SchedulerConfigFile) > 0 {
validationResults.AddErrors(ValidateFile(config.SchedulerConfigFile, "schedulerConfigFile")...)
}
for i, nodeName := range config.StaticNodeNames {
if len(nodeName) == 0 {
validationResults.AddErrors(fielderrors.NewFieldInvalid(fmt.Sprintf("staticNodeName[%d]", i), nodeName, "may not be empty"))
} else {
validationResults.AddWarnings(fielderrors.NewFieldInvalid(fmt.Sprintf("staticNodeName[%d]", i), nodeName, "static nodes are not supported"))
}
}
if len(config.PodEvictionTimeout) > 0 {
if _, err := time.ParseDuration(config.PodEvictionTimeout); err != nil {
validationResults.AddErrors(fielderrors.NewFieldInvalid("podEvictionTimeout", config.PodEvictionTimeout, "must be a valid time duration string (e.g. '300ms' or '2m30s'). Valid time units are 'ns', 'us', 'ms', 's', 'm', 'h'"))
}
}
for group, versions := range config.DisabledAPIGroupVersions {
name := "disabledAPIGroupVersions[" + group + "]"
if !api.KnownKubeAPIGroups.Has(group) {
validationResults.AddWarnings(fielderrors.NewFieldValueNotSupported(name, group, api.KnownKubeAPIGroups.List()))
continue
}
allowedVersions := sets.NewString(api.KubeAPIGroupsToAllowedVersions[group]...)
for i, version := range versions {
if version == "*" {
continue
}
if !allowedVersions.Has(version) {
validationResults.AddWarnings(fielderrors.NewFieldValueNotSupported(fmt.Sprintf("%s[%d]", name, i), version, allowedVersions.List()))
}
}
}
validationResults.AddErrors(ValidateAPIServerExtendedArguments(config.APIServerArguments).Prefix("apiServerArguments")...)
validationResults.AddErrors(ValidateControllerExtendedArguments(config.ControllerArguments).Prefix("controllerArguments")...)
return validationResults
}
func BuildKubernetesMasterConfig(options configapi.MasterConfig, requestContextMapper kapi.RequestContextMapper, kubeClient *kclient.Client, projectCache *projectcache.ProjectCache) (*MasterConfig, error) {
if options.KubernetesMasterConfig == nil {
return nil, errors.New("insufficient information to build KubernetesMasterConfig")
}
// Connect and setup etcd interfaces
etcdClient, err := etcd.EtcdClient(options.EtcdClientInfo)
if err != nil {
return nil, err
}
kubeletClientConfig := configapi.GetKubeletClientConfig(options)
kubeletClient, err := kubeletclient.NewStaticKubeletClient(kubeletClientConfig)
if err != nil {
return nil, fmt.Errorf("unable to configure Kubelet client: %v", err)
}
// in-order list of plug-ins that should intercept admission decisions
// TODO: Push node environment support to upstream in future
_, portString, err := net.SplitHostPort(options.ServingInfo.BindAddress)
if err != nil {
return nil, err
}
port, err := strconv.Atoi(portString)
if err != nil {
return nil, err
}
portRange, err := util.ParsePortRange(options.KubernetesMasterConfig.ServicesNodePortRange)
if err != nil {
return nil, err
}
podEvictionTimeout, err := time.ParseDuration(options.KubernetesMasterConfig.PodEvictionTimeout)
if err != nil {
return nil, fmt.Errorf("unable to parse PodEvictionTimeout: %v", err)
}
server := app.NewAPIServer()
server.EventTTL = 2 * time.Hour
server.ServiceClusterIPRange = net.IPNet(flagtypes.DefaultIPNet(options.KubernetesMasterConfig.ServicesSubnet))
server.ServiceNodePortRange = *portRange
admissionPlugins := AdmissionPlugins
server.AdmissionControl = strings.Join(admissionPlugins, ",")
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubernetesMasterConfig.APIServerArguments, server.AddFlags); len(err) > 0 {
return nil, kerrors.NewAggregate(err)
}
if len(options.KubernetesMasterConfig.AdmissionConfig.PluginOrderOverride) > 0 {
admissionPlugins := options.KubernetesMasterConfig.AdmissionConfig.PluginOrderOverride
server.AdmissionControl = strings.Join(admissionPlugins, ",")
}
cmserver := cmapp.NewCMServer()
cmserver.PodEvictionTimeout = podEvictionTimeout
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubernetesMasterConfig.ControllerArguments, cmserver.AddFlags); len(err) > 0 {
return nil, kerrors.NewAggregate(err)
}
cloud, err := cloudprovider.InitCloudProvider(cmserver.CloudProvider, cmserver.CloudConfigFile)
if err != nil {
return nil, err
}
if cloud != nil {
glog.V(2).Infof("Successfully initialized cloud provider: %q from the config file: %q\n", server.CloudProvider, server.CloudConfigFile)
}
// This is a placeholder to provide additional initialization
// objects to plugins
pluginInitializer := oadmission.PluginInitializer{
ProjectCache: projectCache,
}
plugins := []admission.Interface{}
for _, pluginName := range strings.Split(server.AdmissionControl, ",") {
switch pluginName {
case saadmit.PluginName:
// we need to set some custom parameters on the service account admission controller, so create that one by hand
saAdmitter := saadmit.NewServiceAccount(kubeClient)
saAdmitter.LimitSecretReferences = options.ServiceAccountConfig.LimitSecretReferences
saAdmitter.Run()
plugins = append(plugins, saAdmitter)
default:
configFile := server.AdmissionControlConfigFile
pluginConfig := options.KubernetesMasterConfig.AdmissionConfig.PluginConfig
// Check whether a config is specified for this plugin. If not, default to the
// global plugin config file specifiedd in the server config.
if cfg, hasConfig := pluginConfig[pluginName]; hasConfig {
configFile, err = pluginconfig.GetPluginConfig(cfg)
if err != nil {
return nil, err
}
}
plugin := admission.InitPlugin(pluginName, kubeClient, configFile)
if plugin != nil {
plugins = append(plugins, plugin)
}
}
}
pluginInitializer.Initialize(plugins)
// ensure that plugins have been properly initialized
if err := oadmission.Validate(plugins); err != nil {
return nil, err
}
admissionController := admission.NewChainHandler(plugins...)
var proxyClientCerts []tls.Certificate
if len(options.KubernetesMasterConfig.ProxyClientInfo.CertFile) > 0 {
clientCert, err := tls.LoadX509KeyPair(
options.KubernetesMasterConfig.ProxyClientInfo.CertFile,
options.KubernetesMasterConfig.ProxyClientInfo.KeyFile,
)
if err != nil {
return nil, err
}
proxyClientCerts = append(proxyClientCerts, clientCert)
}
// TODO you have to know every APIGroup you're enabling or upstream will panic. It's alternative to panicing is Fataling
// It needs a refactor to return errors
storageDestinations := master.NewStorageDestinations()
// storageVersions is a map from API group to allowed versions that must be a version exposed by the REST API or it breaks.
// We need to fix the upstream to stop using the storage version as a preferred api version.
storageVersions := map[string]string{}
enabledKubeVersions := configapi.GetEnabledAPIVersionsForGroup(*options.KubernetesMasterConfig, configapi.APIGroupKube)
if len(enabledKubeVersions) > 0 {
kubeStorageVersion := unversioned.GroupVersion{Group: configapi.APIGroupKube, Version: options.EtcdStorageConfig.KubernetesStorageVersion}
databaseStorage, err := NewEtcdStorage(etcdClient, kubeStorageVersion, options.EtcdStorageConfig.KubernetesStoragePrefix)
if err != nil {
return nil, fmt.Errorf("Error setting up Kubernetes server storage: %v", err)
}
storageDestinations.AddAPIGroup(configapi.APIGroupKube, databaseStorage)
storageVersions[configapi.APIGroupKube] = options.EtcdStorageConfig.KubernetesStorageVersion
}
enabledExtensionsVersions := configapi.GetEnabledAPIVersionsForGroup(*options.KubernetesMasterConfig, configapi.APIGroupExtensions)
if len(enabledExtensionsVersions) > 0 {
groupMeta, err := kapilatest.Group(configapi.APIGroupExtensions)
if err != nil {
return nil, fmt.Errorf("Error setting up Kubernetes extensions server storage: %v", err)
}
// TODO expose storage version options for api groups
databaseStorage, err := NewEtcdStorage(etcdClient, groupMeta.GroupVersion, options.EtcdStorageConfig.KubernetesStoragePrefix)
if err != nil {
return nil, fmt.Errorf("Error setting up Kubernetes extensions server storage: %v", err)
}
storageDestinations.AddAPIGroup(configapi.APIGroupExtensions, databaseStorage)
storageVersions[configapi.APIGroupExtensions] = enabledExtensionsVersions[0]
}
// Preserve previous behavior of using the first non-loopback address
// TODO: Deprecate this behavior and just require a valid value to be passed in
publicAddress := net.ParseIP(options.KubernetesMasterConfig.MasterIP)
if publicAddress == nil || publicAddress.IsUnspecified() || publicAddress.IsLoopback() {
hostIP, err := util.ChooseHostInterface()
if err != nil {
glog.Fatalf("Unable to find suitable network address.error='%v'. Set the masterIP directly to avoid this error.", err)
}
publicAddress = hostIP
glog.Infof("Will report %v as public IP address.", publicAddress)
}
m := &master.Config{
PublicAddress: publicAddress,
ReadWritePort: port,
StorageDestinations: storageDestinations,
StorageVersions: storageVersions,
EventTTL: server.EventTTL,
//MinRequestTimeout: server.MinRequestTimeout,
ServiceClusterIPRange: (*net.IPNet)(&server.ServiceClusterIPRange),
ServiceNodePortRange: server.ServiceNodePortRange,
RequestContextMapper: requestContextMapper,
KubeletClient: kubeletClient,
APIPrefix: KubeAPIPrefix,
APIGroupPrefix: KubeAPIGroupPrefix,
EnableCoreControllers: true,
MasterCount: options.KubernetesMasterConfig.MasterCount,
Authorizer: apiserver.NewAlwaysAllowAuthorizer(),
AdmissionControl: admissionController,
APIGroupVersionOverrides: getAPIGroupVersionOverrides(options),
// Set the TLS options for proxying to pods and services
// Proxying to nodes uses the kubeletClient TLS config (so can provide a different cert, and verify the node hostname)
ProxyTLSClientConfig: &tls.Config{
// Proxying to pods and services cannot verify hostnames, since they are contacted on randomly allocated IPs
InsecureSkipVerify: true,
Certificates: proxyClientCerts,
},
}
if options.DNSConfig != nil {
_, dnsPortStr, err := net.SplitHostPort(options.DNSConfig.BindAddress)
if err != nil {
return nil, fmt.Errorf("unable to parse DNS bind address %s: %v", options.DNSConfig.BindAddress, err)
}
dnsPort, err := strconv.Atoi(dnsPortStr)
if err != nil {
return nil, fmt.Errorf("invalid DNS port: %v", err)
}
m.ExtraServicePorts = append(m.ExtraServicePorts,
kapi.ServicePort{Name: "dns", Port: 53, Protocol: kapi.ProtocolUDP, TargetPort: intstr.FromInt(dnsPort)},
kapi.ServicePort{Name: "dns-tcp", Port: 53, Protocol: kapi.ProtocolTCP, TargetPort: intstr.FromInt(dnsPort)},
)
m.ExtraEndpointPorts = append(m.ExtraEndpointPorts,
kapi.EndpointPort{Name: "dns", Port: dnsPort, Protocol: kapi.ProtocolUDP},
kapi.EndpointPort{Name: "dns-tcp", Port: dnsPort, Protocol: kapi.ProtocolTCP},
)
}
kmaster := &MasterConfig{
Options: *options.KubernetesMasterConfig,
KubeClient: kubeClient,
Master: m,
ControllerManager: cmserver,
CloudProvider: cloud,
}
return kmaster, nil
}
func BuildKubernetesMasterConfig(options configapi.MasterConfig, requestContextMapper kapi.RequestContextMapper, kubeClient *kclient.Client) (*MasterConfig, error) {
if options.KubernetesMasterConfig == nil {
return nil, errors.New("insufficient information to build KubernetesMasterConfig")
}
// Connect and setup etcd interfaces
etcdClient, err := etcd.GetAndTestEtcdClient(options.EtcdClientInfo)
if err != nil {
return nil, err
}
databaseStorage, err := master.NewEtcdStorage(etcdClient, kapilatest.InterfacesFor, options.EtcdStorageConfig.KubernetesStorageVersion, options.EtcdStorageConfig.KubernetesStoragePrefix)
if err != nil {
return nil, fmt.Errorf("Error setting up Kubernetes server storage: %v", err)
}
kubeletClientConfig := configapi.GetKubeletClientConfig(options)
kubeletClient, err := kclient.NewKubeletClient(kubeletClientConfig)
if err != nil {
return nil, fmt.Errorf("unable to configure Kubelet client: %v", err)
}
// in-order list of plug-ins that should intercept admission decisions
// TODO: Push node environment support to upstream in future
_, portString, err := net.SplitHostPort(options.ServingInfo.BindAddress)
if err != nil {
return nil, err
}
port, err := strconv.Atoi(portString)
if err != nil {
return nil, err
}
portRange, err := util.ParsePortRange(options.KubernetesMasterConfig.ServicesNodePortRange)
if err != nil {
return nil, err
}
podEvictionTimeout, err := time.ParseDuration(options.KubernetesMasterConfig.PodEvictionTimeout)
if err != nil {
return nil, fmt.Errorf("unable to parse PodEvictionTimeout: %v", err)
}
server := app.NewAPIServer()
server.EventTTL = 2 * time.Hour
server.ServiceClusterIPRange = util.IPNet(flagtypes.DefaultIPNet(options.KubernetesMasterConfig.ServicesSubnet))
server.ServiceNodePortRange = *portRange
server.AdmissionControl = strings.Join([]string{
"NamespaceExists", "NamespaceLifecycle", "OriginPodNodeEnvironment", "LimitRanger", "ServiceAccount", "SecurityContextConstraint", "ResourceQuota",
}, ",")
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubernetesMasterConfig.APIServerArguments, server.AddFlags); len(err) > 0 {
return nil, kerrors.NewAggregate(err)
}
cmserver := cmapp.NewCMServer()
cmserver.PodEvictionTimeout = podEvictionTimeout
// resolve extended arguments
// TODO: this should be done in config validation (along with the above) so we can provide
// proper errors
if err := cmdflags.Resolve(options.KubernetesMasterConfig.ControllerArguments, cmserver.AddFlags); len(err) > 0 {
return nil, kerrors.NewAggregate(err)
}
cloud, err := cloudprovider.InitCloudProvider(cmserver.CloudProvider, cmserver.CloudConfigFile)
if err != nil {
return nil, err
}
admissionController := admission.NewFromPlugins(kubeClient, strings.Split(server.AdmissionControl, ","), server.AdmissionControlConfigFile)
m := &master.Config{
PublicAddress: net.ParseIP(options.KubernetesMasterConfig.MasterIP),
ReadWritePort: port,
DatabaseStorage: databaseStorage,
ExpDatabaseStorage: databaseStorage,
EventTTL: server.EventTTL,
//MinRequestTimeout: server.MinRequestTimeout,
ServiceClusterIPRange: (*net.IPNet)(&server.ServiceClusterIPRange),
ServiceNodePortRange: server.ServiceNodePortRange,
RequestContextMapper: requestContextMapper,
KubeletClient: kubeletClient,
APIPrefix: KubeAPIPrefix,
EnableCoreControllers: true,
MasterCount: options.KubernetesMasterConfig.MasterCount,
Authorizer: apiserver.NewAlwaysAllowAuthorizer(),
AdmissionControl: admissionController,
EnableV1Beta3: configapi.HasKubernetesAPILevel(*options.KubernetesMasterConfig, "v1beta3"),
DisableV1: !configapi.HasKubernetesAPILevel(*options.KubernetesMasterConfig, "v1"),
}
kmaster := &MasterConfig{
Options: *options.KubernetesMasterConfig,
KubeClient: kubeClient,
Master: m,
ControllerManager: cmserver,
CloudProvider: cloud,
}
return kmaster, nil
}