// BuildMasterConfig builds and returns the OpenShift master configuration based on the
// provided options
func BuildMasterConfig(options configapi.MasterConfig) (*MasterConfig, error) {
client, err := etcd.EtcdClient(options.EtcdClientInfo)
if err != nil {
return nil, err
}
etcdClient, err := etcd.MakeNewEtcdClient(options.EtcdClientInfo)
if err != nil {
return nil, err
}
groupVersion := unversioned.GroupVersion{Group: "", Version: options.EtcdStorageConfig.OpenShiftStorageVersion}
etcdHelper, err := NewEtcdStorage(etcdClient, groupVersion, options.EtcdStorageConfig.OpenShiftStoragePrefix)
if err != nil {
return nil, fmt.Errorf("Error setting up server storage: %v", err)
}
restOptsGetter := restoptions.NewConfigGetter(options)
clientCAs, err := configapi.GetClientCertCAPool(options)
if err != nil {
return nil, err
}
apiClientCAs, err := configapi.GetAPIClientCertCAPool(options)
if err != nil {
return nil, err
}
privilegedLoopbackKubeClient, _, err := configapi.GetKubeClient(options.MasterClients.OpenShiftLoopbackKubeConfig)
if err != nil {
return nil, err
}
privilegedLoopbackOpenShiftClient, privilegedLoopbackClientConfig, err := configapi.GetOpenShiftClient(options.MasterClients.OpenShiftLoopbackKubeConfig)
if err != nil {
return nil, err
}
customListerWatchers := shared.DefaultListerWatcherOverrides{}
if err := addAuthorizationListerWatchers(customListerWatchers, restOptsGetter); err != nil {
return nil, err
}
informerFactory := shared.NewInformerFactory(privilegedLoopbackKubeClient, privilegedLoopbackOpenShiftClient, customListerWatchers, 10*time.Minute)
imageTemplate := variable.NewDefaultImageTemplate()
imageTemplate.Format = options.ImageConfig.Format
imageTemplate.Latest = options.ImageConfig.Latest
requestContextMapper := kapi.NewRequestContextMapper()
groupStorage, err := groupstorage.NewREST(restOptsGetter)
if err != nil {
return nil, err
}
groupCache := usercache.NewGroupCache(groupregistry.NewRegistry(groupStorage))
projectCache := projectcache.NewProjectCache(privilegedLoopbackKubeClient.Namespaces(), options.ProjectConfig.DefaultNodeSelector)
clusterQuotaMappingController := clusterquotamapping.NewClusterQuotaMappingController(informerFactory.Namespaces(), informerFactory.ClusterResourceQuotas())
kubeletClientConfig := configapi.GetKubeletClientConfig(options)
// in-order list of plug-ins that should intercept admission decisions (origin only intercepts)
admissionControlPluginNames := []string{
"ProjectRequestLimit",
"OriginNamespaceLifecycle",
"PodNodeConstraints",
"JenkinsBootstrapper",
"BuildByStrategy",
imageadmission.PluginName,
quotaadmission.PluginName,
}
if len(options.AdmissionConfig.PluginOrderOverride) > 0 {
admissionControlPluginNames = options.AdmissionConfig.PluginOrderOverride
}
quotaRegistry := quota.NewOriginQuotaRegistry(privilegedLoopbackOpenShiftClient)
ruleResolver := rulevalidation.NewDefaultRuleResolver(
informerFactory.Policies().Lister(),
informerFactory.PolicyBindings().Lister(),
informerFactory.ClusterPolicies().Lister().ClusterPolicies(),
informerFactory.ClusterPolicyBindings().Lister().ClusterPolicyBindings(),
)
authorizer := newAuthorizer(ruleResolver, informerFactory, options.ProjectConfig.ProjectRequestMessage)
pluginInitializer := oadmission.PluginInitializer{
OpenshiftClient: privilegedLoopbackOpenShiftClient,
ProjectCache: projectCache,
OriginQuotaRegistry: quotaRegistry,
Authorizer: authorizer,
JenkinsPipelineConfig: options.JenkinsPipelineConfig,
RESTClientConfig: *privilegedLoopbackClientConfig,
}
plugins := []admission.Interface{}
clientsetClient := clientadapter.FromUnversionedClient(privilegedLoopbackKubeClient)
for _, pluginName := range admissionControlPluginNames {
configFile, err := pluginconfig.GetPluginConfig(options.AdmissionConfig.PluginConfig[pluginName])
if err != nil {
return nil, err
}
plugin := admission.InitPlugin(pluginName, clientsetClient, 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...)
// TODO: look up storage by resource
serviceAccountTokenGetter, err := newServiceAccountTokenGetter(options, etcdClient)
if err != nil {
return nil, err
}
authenticator, err := newAuthenticator(options, restOptsGetter, serviceAccountTokenGetter, apiClientCAs, groupCache)
if err != nil {
return nil, err
}
plug, plugStart := newControllerPlug(options, client)
config := &MasterConfig{
Options: options,
RESTOptionsGetter: restOptsGetter,
RuleResolver: ruleResolver,
Authenticator: authenticator,
Authorizer: authorizer,
AuthorizationAttributeBuilder: newAuthorizationAttributeBuilder(requestContextMapper),
GroupCache: groupCache,
ProjectAuthorizationCache: newProjectAuthorizationCache(authorizer, privilegedLoopbackKubeClient, informerFactory),
ProjectCache: projectCache,
ClusterQuotaMappingController: clusterQuotaMappingController,
RequestContextMapper: requestContextMapper,
AdmissionControl: admissionController,
TLS: configapi.UseTLS(options.ServingInfo.ServingInfo),
ControllerPlug: plug,
ControllerPlugStart: plugStart,
ImageFor: imageTemplate.ExpandOrDie,
EtcdHelper: etcdHelper,
KubeletClientConfig: kubeletClientConfig,
ClientCAs: clientCAs,
APIClientCAs: apiClientCAs,
PluginInitializer: pluginInitializer,
PrivilegedLoopbackClientConfig: *privilegedLoopbackClientConfig,
PrivilegedLoopbackOpenShiftClient: privilegedLoopbackOpenShiftClient,
PrivilegedLoopbackKubernetesClient: privilegedLoopbackKubeClient,
Informers: informerFactory,
}
return config, nil
}
// BuildMasterConfig builds and returns the OpenShift master configuration based on the
// provided options
func BuildMasterConfig(options configapi.MasterConfig) (*MasterConfig, error) {
client, err := etcd.EtcdClient(options.EtcdClientInfo)
if err != nil {
return nil, err
}
etcdClient, err := etcd.MakeNewEtcdClient(options.EtcdClientInfo)
if err != nil {
return nil, err
}
groupVersion := unversioned.GroupVersion{Group: "", Version: options.EtcdStorageConfig.OpenShiftStorageVersion}
etcdHelper, err := NewEtcdStorage(etcdClient, groupVersion, options.EtcdStorageConfig.OpenShiftStoragePrefix)
if err != nil {
return nil, fmt.Errorf("Error setting up server storage: %v", err)
}
clientCAs, err := configapi.GetClientCertCAPool(options)
if err != nil {
return nil, err
}
apiClientCAs, err := configapi.GetAPIClientCertCAPool(options)
if err != nil {
return nil, err
}
privilegedLoopbackKubeClient, _, err := configapi.GetKubeClient(options.MasterClients.OpenShiftLoopbackKubeConfig)
if err != nil {
return nil, err
}
privilegedLoopbackOpenShiftClient, privilegedLoopbackClientConfig, err := configapi.GetOpenShiftClient(options.MasterClients.OpenShiftLoopbackKubeConfig)
if err != nil {
return nil, err
}
imageTemplate := variable.NewDefaultImageTemplate()
imageTemplate.Format = options.ImageConfig.Format
imageTemplate.Latest = options.ImageConfig.Latest
policyCache, policyClient := newReadOnlyCacheAndClient(etcdHelper)
requestContextMapper := kapi.NewRequestContextMapper()
groupCache := usercache.NewGroupCache(groupregistry.NewRegistry(groupstorage.NewREST(etcdHelper)))
projectCache := projectcache.NewProjectCache(privilegedLoopbackKubeClient.Namespaces(), options.ProjectConfig.DefaultNodeSelector)
kubeletClientConfig := configapi.GetKubeletClientConfig(options)
// in-order list of plug-ins that should intercept admission decisions (origin only intercepts)
admissionControlPluginNames := []string{"OriginNamespaceLifecycle", "BuildByStrategy"}
if len(options.AdmissionConfig.PluginOrderOverride) > 0 {
admissionControlPluginNames = options.AdmissionConfig.PluginOrderOverride
}
pluginInitializer := oadmission.PluginInitializer{
OpenshiftClient: privilegedLoopbackOpenShiftClient,
ProjectCache: projectCache,
}
plugins := []admission.Interface{}
for _, pluginName := range admissionControlPluginNames {
configFile, err := pluginconfig.GetPluginConfig(options.AdmissionConfig.PluginConfig[pluginName])
if err != nil {
return nil, err
}
plugin := admission.InitPlugin(pluginName, privilegedLoopbackKubeClient, 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...)
serviceAccountTokenGetter, err := newServiceAccountTokenGetter(options, etcdClient)
if err != nil {
return nil, err
}
plug, plugStart := newControllerPlug(options, client)
authorizer := newAuthorizer(policyClient, options.ProjectConfig.ProjectRequestMessage)
config := &MasterConfig{
Options: options,
Authenticator: newAuthenticator(options, etcdHelper, serviceAccountTokenGetter, apiClientCAs, groupCache),
Authorizer: authorizer,
AuthorizationAttributeBuilder: newAuthorizationAttributeBuilder(requestContextMapper),
PolicyCache: policyCache,
GroupCache: groupCache,
ProjectAuthorizationCache: newProjectAuthorizationCache(authorizer, privilegedLoopbackKubeClient, policyClient),
ProjectCache: projectCache,
RequestContextMapper: requestContextMapper,
AdmissionControl: admissionController,
TLS: configapi.UseTLS(options.ServingInfo.ServingInfo),
ControllerPlug: plug,
ControllerPlugStart: plugStart,
ImageFor: imageTemplate.ExpandOrDie,
EtcdHelper: etcdHelper,
KubeletClientConfig: kubeletClientConfig,
ClientCAs: clientCAs,
APIClientCAs: apiClientCAs,
PrivilegedLoopbackClientConfig: *privilegedLoopbackClientConfig,
PrivilegedLoopbackOpenShiftClient: privilegedLoopbackOpenShiftClient,
PrivilegedLoopbackKubernetesClient: privilegedLoopbackKubeClient,
}
return config, nil
}
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
}