// RunSecurityAllocationController starts the security allocation controller process.
func (c *MasterConfig) RunSecurityAllocationController() {
alloc := c.Options.ProjectConfig.SecurityAllocator
if alloc == nil {
glog.V(3).Infof("Security allocator is disabled - no UIDs assigned to projects")
return
}
// TODO: move range initialization to run_config
uidRange, err := uid.ParseRange(alloc.UIDAllocatorRange)
if err != nil {
glog.Fatalf("Unable to describe UID range: %v", err)
}
opts, err := c.RESTOptionsGetter.GetRESTOptions(unversioned.GroupResource{Resource: "securityuidranges"})
if err != nil {
glog.Fatalf("Unable to load storage options for security UID ranges")
}
var etcdAlloc *etcdallocator.Etcd
uidAllocator := uidallocator.New(uidRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewContiguousAllocationMap(max, rangeSpec)
etcdAlloc = etcdallocator.NewEtcd(mem, "/ranges/uids", kapi.Resource("uidallocation"), opts.StorageConfig)
return etcdAlloc
})
mcsRange, err := mcs.ParseRange(alloc.MCSAllocatorRange)
if err != nil {
glog.Fatalf("Unable to describe MCS category range: %v", err)
}
kclient := c.SecurityAllocationControllerClient()
repair := securitycontroller.NewRepair(time.Minute, kclient.Namespaces(), uidRange, etcdAlloc)
if err := repair.RunOnce(); err != nil {
// TODO: v scary, may need to use direct etcd calls?
// If the security controller fails during RunOnce it could mean a
// couple of things:
// 1. an unexpected etcd error occurred getting an allocator or the namespaces
// 2. the allocation blocks were full - would result in an admission controller that is unable
// to create the strategies correctly which would likely mean that the cluster
// would not admit pods the the majority of users.
// 3. an unexpected error persisting an allocation for a namespace has occurred - same as above
// In all cases we do not want to continue normal operations, this should be fatal.
glog.Fatalf("Unable to initialize namespaces: %v", err)
}
factory := securitycontroller.AllocationFactory{
UIDAllocator: uidAllocator,
MCSAllocator: securitycontroller.DefaultMCSAllocation(uidRange, mcsRange, alloc.MCSLabelsPerProject),
Client: kclient.Namespaces(),
// TODO: reuse namespace cache
}
controller := factory.Create()
controller.Run()
}
func newStorage(t *testing.T) (*tools.FakeEtcdClient, ipallocator.Interface, allocator.Interface) {
etcdStorage, fakeClient := registrytest.NewEtcdStorage(t, "")
_, cidr, err := net.ParseCIDR("192.168.1.0/24")
if err != nil {
t.Fatal(err)
}
var backing allocator.Interface
storage := ipallocator.NewAllocatorCIDRRange(cidr, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
backing = mem
etcd := allocator_etcd.NewEtcd(mem, "/ranges/serviceips", "serviceipallocation", etcdStorage)
return etcd
})
return fakeClient, storage, backing
}
func newStorage(t *testing.T) (*etcdtesting.EtcdTestServer, ipallocator.Interface, allocator.Interface, storage.Interface) {
etcdStorage, server := registrytest.NewEtcdStorage(t, "")
_, cidr, err := net.ParseCIDR("192.168.1.0/24")
if err != nil {
t.Fatal(err)
}
var backing allocator.Interface
storage := ipallocator.NewAllocatorCIDRRange(cidr, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
backing = mem
etcd := allocatoretcd.NewEtcd(mem, "/ranges/serviceips", api.Resource("serviceipallocations"), etcdStorage)
return etcd
})
return server, storage, backing, generic.NewRawStorage(etcdStorage)
}
// RunSecurityAllocationController starts the security allocation controller process.
func (c *MasterConfig) RunSecurityAllocationController() {
alloc := c.Options.ProjectConfig.SecurityAllocator
if alloc == nil {
glog.V(3).Infof("Security allocator is disabled - no UIDs assigned to projects")
return
}
// TODO: move range initialization to run_config
uidRange, err := uid.ParseRange(alloc.UIDAllocatorRange)
if err != nil {
glog.Fatalf("Unable to describe UID range: %v", err)
}
var etcdAlloc *etcdallocator.Etcd
uidAllocator := uidallocator.New(uidRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewContiguousAllocationMap(max, rangeSpec)
etcdAlloc = etcdallocator.NewEtcd(mem, "/ranges/uids", "uidallocation", c.EtcdHelper)
return etcdAlloc
})
mcsRange, err := mcs.ParseRange(alloc.MCSAllocatorRange)
if err != nil {
glog.Fatalf("Unable to describe MCS category range: %v", err)
}
kclient := c.SecurityAllocationControllerClient()
repair := securitycontroller.NewRepair(time.Minute, kclient.Namespaces(), uidRange, etcdAlloc)
if err := repair.RunOnce(); err != nil {
// TODO: v scary, may need to use direct etcd calls?
glog.Fatalf("Unable to initialize namespaces: %v", err)
}
factory := securitycontroller.AllocationFactory{
UIDAllocator: uidAllocator,
MCSAllocator: securitycontroller.DefaultMCSAllocation(uidRange, mcsRange, alloc.MCSLabelsPerProject),
Client: kclient.Namespaces(),
// TODO: reuse namespace cache
}
controller := factory.Create()
controller.Run()
}
// init initializes master.
func (m *Master) init(c *Config) {
healthzChecks := []healthz.HealthzChecker{}
m.clock = util.RealClock{}
podStorage := podetcd.NewStorage(c.DatabaseStorage, c.KubeletClient)
podTemplateStorage := podtemplateetcd.NewREST(c.DatabaseStorage)
eventRegistry := event.NewEtcdRegistry(c.DatabaseStorage, uint64(c.EventTTL.Seconds()))
limitRangeStorage := limitrangeetcd.NewStorage(c.DatabaseStorage)
resourceQuotaStorage, resourceQuotaStatusStorage := resourcequotaetcd.NewStorage(c.DatabaseStorage)
secretStorage := secretetcd.NewStorage(c.DatabaseStorage)
serviceAccountStorage := serviceaccountetcd.NewStorage(c.DatabaseStorage)
persistentVolumeStorage, persistentVolumeStatusStorage := pvetcd.NewStorage(c.DatabaseStorage)
persistentVolumeClaimStorage, persistentVolumeClaimStatusStorage := pvcetcd.NewStorage(c.DatabaseStorage)
namespaceStorage, namespaceStatusStorage, namespaceFinalizeStorage := namespaceetcd.NewStorage(c.DatabaseStorage)
m.namespaceRegistry = namespace.NewRegistry(namespaceStorage)
endpointsStorage := endpointsetcd.NewStorage(c.DatabaseStorage)
m.endpointRegistry = endpoint.NewRegistry(endpointsStorage)
nodeStorage, nodeStatusStorage := nodeetcd.NewStorage(c.DatabaseStorage, c.KubeletClient)
m.nodeRegistry = minion.NewRegistry(nodeStorage)
serviceStorage := serviceetcd.NewStorage(c.DatabaseStorage)
m.serviceRegistry = service.NewRegistry(serviceStorage)
var serviceClusterIPRegistry service.RangeRegistry
serviceClusterIPAllocator := ipallocator.NewAllocatorCIDRRange(m.serviceClusterIPRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
etcd := etcdallocator.NewEtcd(mem, "/ranges/serviceips", "serviceipallocation", c.DatabaseStorage)
serviceClusterIPRegistry = etcd
return etcd
})
m.serviceClusterIPAllocator = serviceClusterIPRegistry
var serviceNodePortRegistry service.RangeRegistry
serviceNodePortAllocator := portallocator.NewPortAllocatorCustom(m.serviceNodePortRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
etcd := etcdallocator.NewEtcd(mem, "/ranges/servicenodeports", "servicenodeportallocation", c.DatabaseStorage)
serviceNodePortRegistry = etcd
return etcd
})
m.serviceNodePortAllocator = serviceNodePortRegistry
controllerStorage := controlleretcd.NewREST(c.DatabaseStorage)
// TODO: Factor out the core API registration
m.storage = map[string]rest.Storage{
"pods": podStorage.Pod,
"pods/attach": podStorage.Attach,
"pods/status": podStorage.Status,
"pods/log": podStorage.Log,
"pods/exec": podStorage.Exec,
"pods/portforward": podStorage.PortForward,
"pods/proxy": podStorage.Proxy,
"pods/binding": podStorage.Binding,
"bindings": podStorage.Binding,
"podTemplates": podTemplateStorage,
"replicationControllers": controllerStorage,
"services": service.NewStorage(m.serviceRegistry, m.endpointRegistry, serviceClusterIPAllocator, serviceNodePortAllocator),
"endpoints": endpointsStorage,
"nodes": nodeStorage,
"nodes/status": nodeStatusStorage,
"events": event.NewStorage(eventRegistry),
"limitRanges": limitRangeStorage,
"resourceQuotas": resourceQuotaStorage,
"resourceQuotas/status": resourceQuotaStatusStorage,
"namespaces": namespaceStorage,
"namespaces/status": namespaceStatusStorage,
"namespaces/finalize": namespaceFinalizeStorage,
"secrets": secretStorage,
"serviceAccounts": serviceAccountStorage,
"persistentVolumes": persistentVolumeStorage,
"persistentVolumes/status": persistentVolumeStatusStorage,
"persistentVolumeClaims": persistentVolumeClaimStorage,
"persistentVolumeClaims/status": persistentVolumeClaimStatusStorage,
"componentStatuses": componentstatus.NewStorage(func() map[string]apiserver.Server { return m.getServersToValidate(c) }),
}
// establish the node proxy dialer
if len(c.SSHUser) > 0 {
// Usernames are capped @ 32
if len(c.SSHUser) > 32 {
glog.Warning("SSH User is too long, truncating to 32 chars")
c.SSHUser = c.SSHUser[0:32]
}
glog.Infof("Setting up proxy: %s %s", c.SSHUser, c.SSHKeyfile)
// public keyfile is written last, so check for that.
publicKeyFile := c.SSHKeyfile + ".pub"
exists, err := util.FileExists(publicKeyFile)
if err != nil {
glog.Errorf("Error detecting if key exists: %v", err)
} else if !exists {
glog.Infof("Key doesn't exist, attempting to create")
err := m.generateSSHKey(c.SSHUser, c.SSHKeyfile, publicKeyFile)
if err != nil {
glog.Errorf("Failed to create key pair: %v", err)
}
}
m.tunnels = &util.SSHTunnelList{}
m.dialer = m.Dial
m.setupSecureProxy(c.SSHUser, c.SSHKeyfile, publicKeyFile)
m.lastSync = m.clock.Now().Unix()
// This is pretty ugly. A better solution would be to pull this all the way up into the
// server.go file.
httpKubeletClient, ok := c.KubeletClient.(*client.HTTPKubeletClient)
if ok {
httpKubeletClient.Config.Dial = m.dialer
transport, err := client.MakeTransport(httpKubeletClient.Config)
if err != nil {
glog.Errorf("Error setting up transport over SSH: %v", err)
} else {
httpKubeletClient.Client.Transport = transport
}
} else {
glog.Errorf("Failed to cast %v to HTTPKubeletClient, skipping SSH tunnel.", c.KubeletClient)
}
healthzChecks = append(healthzChecks, healthz.NamedCheck("SSH Tunnel Check", m.IsTunnelSyncHealthy))
m.lastSyncMetric = prometheus.NewGaugeFunc(prometheus.GaugeOpts{
Name: "apiserver_proxy_tunnel_sync_latency_secs",
Help: "The time since the last successful synchronization of the SSH tunnels for proxy requests.",
}, func() float64 { return float64(m.secondsSinceSync()) })
}
apiVersions := []string{}
if m.v1 {
if err := m.api_v1().InstallREST(m.handlerContainer); err != nil {
glog.Fatalf("Unable to setup API v1: %v", err)
}
apiVersions = append(apiVersions, "v1")
}
apiserver.InstallSupport(m.muxHelper, m.rootWebService, c.EnableProfiling, healthzChecks...)
apiserver.AddApiWebService(m.handlerContainer, c.APIPrefix, apiVersions)
defaultVersion := m.defaultAPIGroupVersion()
requestInfoResolver := &apiserver.APIRequestInfoResolver{APIPrefixes: util.NewStringSet(strings.TrimPrefix(defaultVersion.Root, "/")), RestMapper: defaultVersion.Mapper}
apiserver.InstallServiceErrorHandler(m.handlerContainer, requestInfoResolver, apiVersions)
if m.exp {
expVersion := m.expapi(c)
if err := expVersion.InstallREST(m.handlerContainer); err != nil {
glog.Fatalf("Unable to setup experimental api: %v", err)
}
apiserver.AddApiWebService(m.handlerContainer, c.ExpAPIPrefix, []string{expVersion.Version})
expRequestInfoResolver := &apiserver.APIRequestInfoResolver{APIPrefixes: util.NewStringSet(strings.TrimPrefix(expVersion.Root, "/")), RestMapper: expVersion.Mapper}
apiserver.InstallServiceErrorHandler(m.handlerContainer, expRequestInfoResolver, []string{expVersion.Version})
}
// Register root handler.
// We do not register this using restful Webservice since we do not want to surface this in api docs.
// Allow master to be embedded in contexts which already have something registered at the root
if c.EnableIndex {
m.mux.HandleFunc("/", apiserver.IndexHandler(m.handlerContainer, m.muxHelper))
}
if c.EnableLogsSupport {
apiserver.InstallLogsSupport(m.muxHelper)
}
if c.EnableUISupport {
ui.InstallSupport(m.muxHelper, m.enableSwaggerSupport)
}
if c.EnableProfiling {
m.mux.HandleFunc("/debug/pprof/", pprof.Index)
m.mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
m.mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
}
handler := http.Handler(m.mux.(*http.ServeMux))
// TODO: handle CORS and auth using go-restful
// See github.com/emicklei/go-restful/blob/master/examples/restful-CORS-filter.go, and
// github.com/emicklei/go-restful/blob/master/examples/restful-basic-authentication.go
if len(c.CorsAllowedOriginList) > 0 {
allowedOriginRegexps, err := util.CompileRegexps(c.CorsAllowedOriginList)
if err != nil {
glog.Fatalf("Invalid CORS allowed origin, --cors-allowed-origins flag was set to %v - %v", strings.Join(c.CorsAllowedOriginList, ","), err)
}
handler = apiserver.CORS(handler, allowedOriginRegexps, nil, nil, "true")
}
m.InsecureHandler = handler
attributeGetter := apiserver.NewRequestAttributeGetter(m.requestContextMapper, latest.RESTMapper, "api")
handler = apiserver.WithAuthorizationCheck(handler, attributeGetter, m.authorizer)
// Install Authenticator
if c.Authenticator != nil {
authenticatedHandler, err := handlers.NewRequestAuthenticator(m.requestContextMapper, c.Authenticator, handlers.Unauthorized(c.SupportsBasicAuth), handler)
if err != nil {
glog.Fatalf("Could not initialize authenticator: %v", err)
}
handler = authenticatedHandler
}
// Install root web services
m.handlerContainer.Add(m.rootWebService)
// TODO: Make this optional? Consumers of master depend on this currently.
m.Handler = handler
if m.enableSwaggerSupport {
m.InstallSwaggerAPI()
}
// After all wrapping is done, put a context filter around both handlers
if handler, err := api.NewRequestContextFilter(m.requestContextMapper, m.Handler); err != nil {
glog.Fatalf("Could not initialize request context filter: %v", err)
} else {
m.Handler = handler
}
if handler, err := api.NewRequestContextFilter(m.requestContextMapper, m.InsecureHandler); err != nil {
glog.Fatalf("Could not initialize request context filter: %v", err)
} else {
m.InsecureHandler = handler
}
// TODO: Attempt clean shutdown?
if m.enableCoreControllers {
m.NewBootstrapController().Start()
}
}
func (m *Master) initV1ResourcesStorage(c *Config) {
restOptions := func(resource string) generic.RESTOptions {
return m.GetRESTOptionsOrDie(c, api.Resource(resource))
}
podTemplateStorage := podtemplateetcd.NewREST(restOptions("podTemplates"))
eventStorage := eventetcd.NewREST(restOptions("events"), uint64(c.EventTTL.Seconds()))
limitRangeStorage := limitrangeetcd.NewREST(restOptions("limitRanges"))
resourceQuotaStorage, resourceQuotaStatusStorage := resourcequotaetcd.NewREST(restOptions("resourceQuotas"))
secretStorage := secretetcd.NewREST(restOptions("secrets"))
serviceAccountStorage := serviceaccountetcd.NewREST(restOptions("serviceAccounts"))
persistentVolumeStorage, persistentVolumeStatusStorage := pvetcd.NewREST(restOptions("persistentVolumes"))
persistentVolumeClaimStorage, persistentVolumeClaimStatusStorage := pvcetcd.NewREST(restOptions("persistentVolumeClaims"))
configMapStorage := configmapetcd.NewREST(restOptions("configMaps"))
namespaceStorage, namespaceStatusStorage, namespaceFinalizeStorage := namespaceetcd.NewREST(restOptions("namespaces"))
m.namespaceRegistry = namespace.NewRegistry(namespaceStorage)
endpointsStorage := endpointsetcd.NewREST(restOptions("endpoints"))
m.endpointRegistry = endpoint.NewRegistry(endpointsStorage)
nodeStorage := nodeetcd.NewStorage(restOptions("nodes"), c.KubeletClient, m.ProxyTransport)
m.nodeRegistry = node.NewRegistry(nodeStorage.Node)
podStorage := podetcd.NewStorage(
restOptions("pods"),
kubeletclient.ConnectionInfoGetter(nodeStorage.Node),
m.ProxyTransport,
)
serviceRESTStorage, serviceStatusStorage := serviceetcd.NewREST(restOptions("services"))
m.serviceRegistry = service.NewRegistry(serviceRESTStorage)
var serviceClusterIPRegistry service.RangeRegistry
serviceClusterIPRange := m.ServiceClusterIPRange
if serviceClusterIPRange == nil {
glog.Fatalf("service clusterIPRange is nil")
return
}
serviceStorage, err := c.StorageFactory.New(api.Resource("services"))
if err != nil {
glog.Fatal(err.Error())
}
serviceClusterIPAllocator := ipallocator.NewAllocatorCIDRRange(serviceClusterIPRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
// TODO etcdallocator package to return a storage interface via the storageFactory
etcd := etcdallocator.NewEtcd(mem, "/ranges/serviceips", api.Resource("serviceipallocations"), serviceStorage)
serviceClusterIPRegistry = etcd
return etcd
})
m.serviceClusterIPAllocator = serviceClusterIPRegistry
var serviceNodePortRegistry service.RangeRegistry
serviceNodePortAllocator := portallocator.NewPortAllocatorCustom(m.ServiceNodePortRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
// TODO etcdallocator package to return a storage interface via the storageFactory
etcd := etcdallocator.NewEtcd(mem, "/ranges/servicenodeports", api.Resource("servicenodeportallocations"), serviceStorage)
serviceNodePortRegistry = etcd
return etcd
})
m.serviceNodePortAllocator = serviceNodePortRegistry
controllerStorage := controlleretcd.NewStorage(restOptions("replicationControllers"))
serviceRest := service.NewStorage(m.serviceRegistry, m.endpointRegistry, serviceClusterIPAllocator, serviceNodePortAllocator, m.ProxyTransport)
// TODO: Factor out the core API registration
m.v1ResourcesStorage = map[string]rest.Storage{
"pods": podStorage.Pod,
"pods/attach": podStorage.Attach,
"pods/status": podStorage.Status,
"pods/log": podStorage.Log,
"pods/exec": podStorage.Exec,
"pods/portforward": podStorage.PortForward,
"pods/proxy": podStorage.Proxy,
"pods/binding": podStorage.Binding,
"bindings": podStorage.Binding,
"podTemplates": podTemplateStorage,
"replicationControllers": controllerStorage.Controller,
"replicationControllers/status": controllerStorage.Status,
"services": serviceRest.Service,
"services/proxy": serviceRest.Proxy,
"services/status": serviceStatusStorage,
"endpoints": endpointsStorage,
"nodes": nodeStorage.Node,
"nodes/status": nodeStorage.Status,
"nodes/proxy": nodeStorage.Proxy,
"events": eventStorage,
"limitRanges": limitRangeStorage,
"resourceQuotas": resourceQuotaStorage,
"resourceQuotas/status": resourceQuotaStatusStorage,
"namespaces": namespaceStorage,
"namespaces/status": namespaceStatusStorage,
"namespaces/finalize": namespaceFinalizeStorage,
"secrets": secretStorage,
"serviceAccounts": serviceAccountStorage,
"persistentVolumes": persistentVolumeStorage,
"persistentVolumes/status": persistentVolumeStatusStorage,
"persistentVolumeClaims": persistentVolumeClaimStorage,
"persistentVolumeClaims/status": persistentVolumeClaimStatusStorage,
"configMaps": configMapStorage,
"componentStatuses": componentstatus.NewStorage(func() map[string]apiserver.Server { return m.getServersToValidate(c) }),
}
if registered.IsEnabledVersion(unversioned.GroupVersion{Group: "autoscaling", Version: "v1"}) {
m.v1ResourcesStorage["replicationControllers/scale"] = controllerStorage.Scale
}
}
func (m *Master) initV1ResourcesStorage(c *Config) {
storageDecorator := m.StorageDecorator()
dbClient := func(resource string) storage.Interface { return c.StorageDestinations.Get("", resource) }
podTemplateStorage := podtemplateetcd.NewREST(dbClient("podTemplates"), storageDecorator)
eventStorage := eventetcd.NewREST(dbClient("events"), storageDecorator, uint64(c.EventTTL.Seconds()))
limitRangeStorage := limitrangeetcd.NewREST(dbClient("limitRanges"), storageDecorator)
resourceQuotaStorage, resourceQuotaStatusStorage := resourcequotaetcd.NewREST(dbClient("resourceQuotas"), storageDecorator)
secretStorage := secretetcd.NewREST(dbClient("secrets"), storageDecorator)
serviceAccountStorage := serviceaccountetcd.NewREST(dbClient("serviceAccounts"), storageDecorator)
persistentVolumeStorage, persistentVolumeStatusStorage := pvetcd.NewREST(dbClient("persistentVolumes"), storageDecorator)
persistentVolumeClaimStorage, persistentVolumeClaimStatusStorage := pvcetcd.NewREST(dbClient("persistentVolumeClaims"), storageDecorator)
configMapStorage := configmapetcd.NewREST(dbClient("configMaps"), storageDecorator)
namespaceStorage, namespaceStatusStorage, namespaceFinalizeStorage := namespaceetcd.NewREST(dbClient("namespaces"), storageDecorator)
m.namespaceRegistry = namespace.NewRegistry(namespaceStorage)
endpointsStorage := endpointsetcd.NewREST(dbClient("endpoints"), storageDecorator)
m.endpointRegistry = endpoint.NewRegistry(endpointsStorage)
nodeStorage, nodeStatusStorage := nodeetcd.NewREST(dbClient("nodes"), storageDecorator, c.KubeletClient, m.ProxyTransport)
m.nodeRegistry = node.NewRegistry(nodeStorage)
podStorage := podetcd.NewStorage(
dbClient("pods"),
storageDecorator,
kubeletclient.ConnectionInfoGetter(nodeStorage),
m.ProxyTransport,
)
serviceStorage, serviceStatusStorage := serviceetcd.NewREST(dbClient("services"), storageDecorator)
m.serviceRegistry = service.NewRegistry(serviceStorage)
var serviceClusterIPRegistry service.RangeRegistry
serviceClusterIPRange := m.ServiceClusterIPRange
if serviceClusterIPRange == nil {
glog.Fatalf("service clusterIPRange is nil")
return
}
serviceClusterIPAllocator := ipallocator.NewAllocatorCIDRRange(serviceClusterIPRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
etcd := etcdallocator.NewEtcd(mem, "/ranges/serviceips", api.Resource("serviceipallocations"), dbClient("services"))
serviceClusterIPRegistry = etcd
return etcd
})
m.serviceClusterIPAllocator = serviceClusterIPRegistry
var serviceNodePortRegistry service.RangeRegistry
serviceNodePortAllocator := portallocator.NewPortAllocatorCustom(m.ServiceNodePortRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
etcd := etcdallocator.NewEtcd(mem, "/ranges/servicenodeports", api.Resource("servicenodeportallocations"), dbClient("services"))
serviceNodePortRegistry = etcd
return etcd
})
m.serviceNodePortAllocator = serviceNodePortRegistry
controllerStorage, controllerStatusStorage := controlleretcd.NewREST(dbClient("replicationControllers"), storageDecorator)
m.v1ResourcesStorage = map[string]rest.Storage{
"pods": podStorage.Pod,
"pods/attach": podStorage.Attach,
"pods/status": podStorage.Status,
"pods/log": podStorage.Log,
"pods/exec": podStorage.Exec,
"pods/portforward": podStorage.PortForward,
"pods/proxy": podStorage.Proxy,
"pods/binding": podStorage.Binding,
"bindings": podStorage.Binding,
"podTemplates": podTemplateStorage,
"replicationControllers": controllerStorage,
"replicationControllers/status": controllerStatusStorage,
"services": service.NewStorage(m.serviceRegistry, m.endpointRegistry, serviceClusterIPAllocator, serviceNodePortAllocator, m.ProxyTransport),
"services/status": serviceStatusStorage,
"endpoints": endpointsStorage,
"nodes": nodeStorage,
"nodes/status": nodeStatusStorage,
"events": eventStorage,
"limitRanges": limitRangeStorage,
"resourceQuotas": resourceQuotaStorage,
"resourceQuotas/status": resourceQuotaStatusStorage,
"namespaces": namespaceStorage,
"namespaces/status": namespaceStatusStorage,
"namespaces/finalize": namespaceFinalizeStorage,
"secrets": secretStorage,
"serviceAccounts": serviceAccountStorage,
"persistentVolumes": persistentVolumeStorage,
"persistentVolumes/status": persistentVolumeStatusStorage,
"persistentVolumeClaims": persistentVolumeClaimStorage,
"persistentVolumeClaims/status": persistentVolumeClaimStatusStorage,
"configMaps": configMapStorage,
"componentStatuses": componentstatus.NewStorage(func() map[string]apiserver.Server { return m.getServersToValidate(c) }),
}
}
// init initializes master.
func (m *Master) init(c *Config) {
if c.ProxyDialer != nil || c.ProxyTLSClientConfig != nil {
m.proxyTransport = util.SetTransportDefaults(&http.Transport{
Dial: c.ProxyDialer,
TLSClientConfig: c.ProxyTLSClientConfig,
})
}
healthzChecks := []healthz.HealthzChecker{}
storageDecorator := c.storageDecorator()
dbClient := func(resource string) storage.Interface { return c.StorageDestinations.get("", resource) }
podStorage := podetcd.NewStorage(dbClient("pods"), storageDecorator, c.KubeletClient, m.proxyTransport)
podTemplateStorage := podtemplateetcd.NewREST(dbClient("podTemplates"), storageDecorator)
eventStorage := eventetcd.NewREST(dbClient("events"), storageDecorator, uint64(c.EventTTL.Seconds()))
limitRangeStorage := limitrangeetcd.NewREST(dbClient("limitRanges"), storageDecorator)
resourceQuotaStorage, resourceQuotaStatusStorage := resourcequotaetcd.NewREST(dbClient("resourceQuotas"), storageDecorator)
secretStorage := secretetcd.NewREST(dbClient("secrets"), storageDecorator)
serviceAccountStorage := serviceaccountetcd.NewREST(dbClient("serviceAccounts"), storageDecorator)
persistentVolumeStorage, persistentVolumeStatusStorage := pvetcd.NewREST(dbClient("persistentVolumes"), storageDecorator)
persistentVolumeClaimStorage, persistentVolumeClaimStatusStorage := pvcetcd.NewREST(dbClient("persistentVolumeClaims"), storageDecorator)
namespaceStorage, namespaceStatusStorage, namespaceFinalizeStorage := namespaceetcd.NewREST(dbClient("namespaces"), storageDecorator)
m.namespaceRegistry = namespace.NewRegistry(namespaceStorage)
endpointsStorage := endpointsetcd.NewREST(dbClient("endpoints"), storageDecorator)
m.endpointRegistry = endpoint.NewRegistry(endpointsStorage)
nodeStorage, nodeStatusStorage := nodeetcd.NewREST(dbClient("nodes"), storageDecorator, c.KubeletClient, m.proxyTransport)
m.nodeRegistry = node.NewRegistry(nodeStorage)
serviceStorage := serviceetcd.NewREST(dbClient("services"), storageDecorator)
m.serviceRegistry = service.NewRegistry(serviceStorage)
var serviceClusterIPRegistry service.RangeRegistry
serviceClusterIPAllocator := ipallocator.NewAllocatorCIDRRange(m.serviceClusterIPRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
etcd := etcdallocator.NewEtcd(mem, "/ranges/serviceips", "serviceipallocation", dbClient("services"))
serviceClusterIPRegistry = etcd
return etcd
})
m.serviceClusterIPAllocator = serviceClusterIPRegistry
var serviceNodePortRegistry service.RangeRegistry
serviceNodePortAllocator := portallocator.NewPortAllocatorCustom(m.serviceNodePortRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
etcd := etcdallocator.NewEtcd(mem, "/ranges/servicenodeports", "servicenodeportallocation", dbClient("services"))
serviceNodePortRegistry = etcd
return etcd
})
m.serviceNodePortAllocator = serviceNodePortRegistry
controllerStorage, controllerStatusStorage := controlleretcd.NewREST(dbClient("replicationControllers"), storageDecorator)
// TODO: Factor out the core API registration
m.storage = map[string]rest.Storage{
"pods": podStorage.Pod,
"pods/attach": podStorage.Attach,
"pods/status": podStorage.Status,
"pods/log": podStorage.Log,
"pods/exec": podStorage.Exec,
"pods/portforward": podStorage.PortForward,
"pods/proxy": podStorage.Proxy,
"pods/binding": podStorage.Binding,
"bindings": podStorage.Binding,
"podTemplates": podTemplateStorage,
"replicationControllers": controllerStorage,
"replicationControllers/status": controllerStatusStorage,
"services": service.NewStorage(m.serviceRegistry, m.endpointRegistry, serviceClusterIPAllocator, serviceNodePortAllocator, m.proxyTransport),
"endpoints": endpointsStorage,
"nodes": nodeStorage,
"nodes/status": nodeStatusStorage,
"events": eventStorage,
"limitRanges": limitRangeStorage,
"resourceQuotas": resourceQuotaStorage,
"resourceQuotas/status": resourceQuotaStatusStorage,
"namespaces": namespaceStorage,
"namespaces/status": namespaceStatusStorage,
"namespaces/finalize": namespaceFinalizeStorage,
"secrets": secretStorage,
"serviceAccounts": serviceAccountStorage,
"persistentVolumes": persistentVolumeStorage,
"persistentVolumes/status": persistentVolumeStatusStorage,
"persistentVolumeClaims": persistentVolumeClaimStorage,
"persistentVolumeClaims/status": persistentVolumeClaimStatusStorage,
"componentStatuses": componentstatus.NewStorage(func() map[string]apiserver.Server { return m.getServersToValidate(c) }),
}
if m.tunneler != nil {
m.tunneler.Run(m.getNodeAddresses)
healthzChecks = append(healthzChecks, healthz.NamedCheck("SSH Tunnel Check", m.IsTunnelSyncHealthy))
prometheus.NewGaugeFunc(prometheus.GaugeOpts{
Name: "apiserver_proxy_tunnel_sync_latency_secs",
Help: "The time since the last successful synchronization of the SSH tunnels for proxy requests.",
}, func() float64 { return float64(m.tunneler.SecondsSinceSync()) })
}
apiVersions := []string{}
// Install v1 unless disabled.
if !m.apiGroupVersionOverrides["api/v1"].Disable {
if err := m.api_v1().InstallREST(m.handlerContainer); err != nil {
glog.Fatalf("Unable to setup API v1: %v", err)
}
apiVersions = append(apiVersions, "v1")
}
apiserver.InstallSupport(m.muxHelper, m.rootWebService, c.EnableProfiling, healthzChecks...)
apiserver.AddApiWebService(m.handlerContainer, c.APIPrefix, apiVersions)
apiserver.InstallServiceErrorHandler(m.handlerContainer, m.newRequestInfoResolver(), apiVersions)
// allGroups records all supported groups at /apis
allGroups := []unversioned.APIGroup{}
// Install extensions unless disabled.
if !m.apiGroupVersionOverrides["extensions/v1beta1"].Disable {
m.thirdPartyStorage = c.StorageDestinations.APIGroups["extensions"].Default
m.thirdPartyResources = map[string]*thirdpartyresourcedataetcd.REST{}
expVersion := m.experimental(c)
if err := expVersion.InstallREST(m.handlerContainer); err != nil {
glog.Fatalf("Unable to setup experimental api: %v", err)
}
g, err := latest.Group("extensions")
if err != nil {
glog.Fatalf("Unable to setup experimental api: %v", err)
}
expAPIVersions := []unversioned.GroupVersionForDiscovery{
{
GroupVersion: expVersion.GroupVersion.String(),
Version: expVersion.GroupVersion.Version,
},
}
storageVersion, found := c.StorageVersions[g.Group]
if !found {
glog.Fatalf("Couldn't find storage version of group %v", g.Group)
}
group := unversioned.APIGroup{
Name: g.Group,
Versions: expAPIVersions,
PreferredVersion: unversioned.GroupVersionForDiscovery{GroupVersion: storageVersion, Version: apiutil.GetVersion(storageVersion)},
}
apiserver.AddGroupWebService(m.handlerContainer, c.APIGroupPrefix+"/"+latest.GroupOrDie("extensions").Group, group)
allGroups = append(allGroups, group)
apiserver.InstallServiceErrorHandler(m.handlerContainer, m.newRequestInfoResolver(), []string{expVersion.GroupVersion.String()})
}
// This should be done after all groups are registered
// TODO: replace the hardcoded "apis".
apiserver.AddApisWebService(m.handlerContainer, "/apis", allGroups)
// Register root handler.
// We do not register this using restful Webservice since we do not want to surface this in api docs.
// Allow master to be embedded in contexts which already have something registered at the root
if c.EnableIndex {
m.mux.HandleFunc("/", apiserver.IndexHandler(m.handlerContainer, m.muxHelper))
}
if c.EnableLogsSupport {
apiserver.InstallLogsSupport(m.muxHelper)
}
if c.EnableUISupport {
ui.InstallSupport(m.muxHelper, m.enableSwaggerSupport)
}
if c.EnableProfiling {
m.mux.HandleFunc("/debug/pprof/", pprof.Index)
m.mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
m.mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
}
handler := http.Handler(m.mux.(*http.ServeMux))
insecureHandler := handler
// TODO: handle CORS and auth using go-restful
// See github.com/emicklei/go-restful/blob/master/examples/restful-CORS-filter.go, and
// github.com/emicklei/go-restful/blob/master/examples/restful-basic-authentication.go
attributeGetter := apiserver.NewRequestAttributeGetter(m.requestContextMapper, m.newRequestInfoResolver())
handler = apiserver.WithAuthorizationCheck(handler, attributeGetter, m.authorizer)
// Install Authenticator
if c.Authenticator != nil {
authenticatedHandler, err := handlers.NewRequestAuthenticator(m.requestContextMapper, c.Authenticator, handlers.Unauthorized(c.SupportsBasicAuth), handler)
if err != nil {
glog.Fatalf("Could not initialize authenticator: %v", err)
}
handler = authenticatedHandler
}
// Since OPTIONS request cannot carry authn headers (by w3c standards), we are doing CORS check
// before auth check. Otherwise all the CORS request will be rejected.
if len(c.CorsAllowedOriginList) > 0 {
allowedOriginRegexps, err := util.CompileRegexps(c.CorsAllowedOriginList)
if err != nil {
glog.Fatalf("Invalid CORS allowed origin, --cors-allowed-origins flag was set to %v - %v", strings.Join(c.CorsAllowedOriginList, ","), err)
}
handler = apiserver.CORS(handler, allowedOriginRegexps, nil, nil, "true")
insecureHandler = apiserver.CORS(insecureHandler, allowedOriginRegexps, nil, nil, "true")
}
m.InsecureHandler = insecureHandler
// Install root web services
m.handlerContainer.Add(m.rootWebService)
// TODO: Make this optional? Consumers of master depend on this currently.
m.Handler = handler
if m.enableSwaggerSupport {
m.InstallSwaggerAPI()
}
// After all wrapping is done, put a context filter around both handlers
if handler, err := api.NewRequestContextFilter(m.requestContextMapper, m.Handler); err != nil {
glog.Fatalf("Could not initialize request context filter: %v", err)
} else {
m.Handler = handler
}
if handler, err := api.NewRequestContextFilter(m.requestContextMapper, m.InsecureHandler); err != nil {
glog.Fatalf("Could not initialize request context filter: %v", err)
} else {
m.InsecureHandler = handler
}
// TODO: Attempt clean shutdown?
if m.enableCoreControllers {
m.NewBootstrapController().Start()
}
}
// init initializes master.
func (m *Master) init(c *Config) {
if c.ProxyDialer != nil || c.ProxyTLSClientConfig != nil {
m.proxyTransport = util.SetTransportDefaults(&http.Transport{
Dial: c.ProxyDialer,
TLSClientConfig: c.ProxyTLSClientConfig,
})
}
healthzChecks := []healthz.HealthzChecker{}
podStorage := podetcd.NewStorage(c.DatabaseStorage, c.EnableWatchCache, c.KubeletClient, m.proxyTransport)
podTemplateStorage := podtemplateetcd.NewREST(c.DatabaseStorage)
eventStorage := eventetcd.NewREST(c.DatabaseStorage, uint64(c.EventTTL.Seconds()))
limitRangeStorage := limitrangeetcd.NewREST(c.DatabaseStorage)
resourceQuotaStorage, resourceQuotaStatusStorage := resourcequotaetcd.NewREST(c.DatabaseStorage)
secretStorage := secretetcd.NewREST(c.DatabaseStorage)
serviceAccountStorage := serviceaccountetcd.NewREST(c.DatabaseStorage)
persistentVolumeStorage, persistentVolumeStatusStorage := pvetcd.NewREST(c.DatabaseStorage)
persistentVolumeClaimStorage, persistentVolumeClaimStatusStorage := pvcetcd.NewREST(c.DatabaseStorage)
namespaceStorage, namespaceStatusStorage, namespaceFinalizeStorage := namespaceetcd.NewREST(c.DatabaseStorage)
m.namespaceRegistry = namespace.NewRegistry(namespaceStorage)
endpointsStorage := endpointsetcd.NewREST(c.DatabaseStorage, c.EnableWatchCache)
m.endpointRegistry = endpoint.NewRegistry(endpointsStorage)
securityContextConstraintsStorage := sccetcd.NewStorage(c.DatabaseStorage)
nodeStorage, nodeStatusStorage := nodeetcd.NewREST(c.DatabaseStorage, c.EnableWatchCache, c.KubeletClient, m.proxyTransport)
m.nodeRegistry = node.NewRegistry(nodeStorage)
serviceStorage := serviceetcd.NewREST(c.DatabaseStorage)
m.serviceRegistry = service.NewRegistry(serviceStorage)
var serviceClusterIPRegistry service.RangeRegistry
serviceClusterIPAllocator := ipallocator.NewAllocatorCIDRRange(m.serviceClusterIPRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
etcd := etcdallocator.NewEtcd(mem, "/ranges/serviceips", "serviceipallocation", c.DatabaseStorage)
serviceClusterIPRegistry = etcd
return etcd
})
m.serviceClusterIPAllocator = serviceClusterIPRegistry
var serviceNodePortRegistry service.RangeRegistry
serviceNodePortAllocator := portallocator.NewPortAllocatorCustom(m.serviceNodePortRange, func(max int, rangeSpec string) allocator.Interface {
mem := allocator.NewAllocationMap(max, rangeSpec)
etcd := etcdallocator.NewEtcd(mem, "/ranges/servicenodeports", "servicenodeportallocation", c.DatabaseStorage)
serviceNodePortRegistry = etcd
return etcd
})
m.serviceNodePortAllocator = serviceNodePortRegistry
controllerStorage := controlleretcd.NewREST(c.DatabaseStorage)
// TODO: Factor out the core API registration
m.storage = map[string]rest.Storage{
"pods": podStorage.Pod,
"pods/attach": podStorage.Attach,
"pods/status": podStorage.Status,
"pods/log": podStorage.Log,
"pods/exec": podStorage.Exec,
"pods/portforward": podStorage.PortForward,
"pods/proxy": podStorage.Proxy,
"pods/binding": podStorage.Binding,
"bindings": podStorage.Binding,
"podTemplates": podTemplateStorage,
"replicationControllers": controllerStorage,
"services": service.NewStorage(m.serviceRegistry, m.endpointRegistry, serviceClusterIPAllocator, serviceNodePortAllocator, m.proxyTransport),
"endpoints": endpointsStorage,
"nodes": nodeStorage,
"nodes/status": nodeStatusStorage,
"events": eventStorage,
"limitRanges": limitRangeStorage,
"resourceQuotas": resourceQuotaStorage,
"resourceQuotas/status": resourceQuotaStatusStorage,
"namespaces": namespaceStorage,
"namespaces/status": namespaceStatusStorage,
"namespaces/finalize": namespaceFinalizeStorage,
"secrets": secretStorage,
"serviceAccounts": serviceAccountStorage,
"securityContextConstraints": securityContextConstraintsStorage,
"persistentVolumes": persistentVolumeStorage,
"persistentVolumes/status": persistentVolumeStatusStorage,
"persistentVolumeClaims": persistentVolumeClaimStorage,
"persistentVolumeClaims/status": persistentVolumeClaimStatusStorage,
"componentStatuses": componentstatus.NewStorage(func() map[string]apiserver.Server { return m.getServersToValidate(c) }),
}
if m.tunneler != nil {
m.tunneler.Run(m.getNodeAddresses)
healthzChecks = append(healthzChecks, healthz.NamedCheck("SSH Tunnel Check", m.IsTunnelSyncHealthy))
prometheus.NewGaugeFunc(prometheus.GaugeOpts{
Name: "apiserver_proxy_tunnel_sync_latency_secs",
Help: "The time since the last successful synchronization of the SSH tunnels for proxy requests.",
}, func() float64 { return float64(m.tunneler.SecondsSinceSync()) })
}
apiVersions := []string{}
if m.v1beta3 {
if err := m.api_v1beta3().InstallREST(m.handlerContainer); err != nil {
glog.Fatalf("Unable to setup API v1beta3: %v", err)
}
apiVersions = append(apiVersions, "v1beta3")
}
if m.v1 {
if err := m.api_v1().InstallREST(m.handlerContainer); err != nil {
glog.Fatalf("Unable to setup API v1: %v", err)
}
apiVersions = append(apiVersions, "v1")
}
apiserver.InstallSupport(m.muxHelper, m.rootWebService, c.EnableProfiling, healthzChecks...)
apiserver.AddApiWebService(m.handlerContainer, c.APIPrefix, apiVersions)
defaultVersion := m.defaultAPIGroupVersion()
requestInfoResolver := &apiserver.APIRequestInfoResolver{APIPrefixes: sets.NewString(strings.TrimPrefix(defaultVersion.Root, "/")), RestMapper: defaultVersion.Mapper}
apiserver.InstallServiceErrorHandler(m.handlerContainer, requestInfoResolver, apiVersions)
if m.exp {
expVersion := m.experimental(c)
if err := expVersion.InstallREST(m.handlerContainer); err != nil {
glog.Fatalf("Unable to setup experimental api: %v", err)
}
apiserver.AddApiWebService(m.handlerContainer, c.ExpAPIPrefix, []string{expVersion.Version})
expRequestInfoResolver := &apiserver.APIRequestInfoResolver{APIPrefixes: sets.NewString(strings.TrimPrefix(expVersion.Root, "/")), RestMapper: expVersion.Mapper}
apiserver.InstallServiceErrorHandler(m.handlerContainer, expRequestInfoResolver, []string{expVersion.Version})
}
// Register root handler.
// We do not register this using restful Webservice since we do not want to surface this in api docs.
// Allow master to be embedded in contexts which already have something registered at the root
if c.EnableIndex {
m.mux.HandleFunc("/", apiserver.IndexHandler(m.handlerContainer, m.muxHelper))
}
if c.EnableLogsSupport {
apiserver.InstallLogsSupport(m.muxHelper)
}
/*if c.EnableUISupport {
ui.InstallSupport(m.mux)
}*/
if c.EnableProfiling {
m.mux.HandleFunc("/debug/pprof/", pprof.Index)
m.mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
m.mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
}
handler := http.Handler(m.mux.(*http.ServeMux))
// TODO: handle CORS and auth using go-restful
// See github.com/emicklei/go-restful/blob/master/examples/restful-CORS-filter.go, and
// github.com/emicklei/go-restful/blob/master/examples/restful-basic-authentication.go
if len(c.CorsAllowedOriginList) > 0 {
allowedOriginRegexps, err := util.CompileRegexps(c.CorsAllowedOriginList)
if err != nil {
glog.Fatalf("Invalid CORS allowed origin, --cors-allowed-origins flag was set to %v - %v", strings.Join(c.CorsAllowedOriginList, ","), err)
}
handler = apiserver.CORS(handler, allowedOriginRegexps, nil, nil, "true")
}
m.InsecureHandler = handler
attributeGetter := apiserver.NewRequestAttributeGetter(m.requestContextMapper, latest.RESTMapper, "api")
handler = apiserver.WithAuthorizationCheck(handler, attributeGetter, m.authorizer)
// Install Authenticator
if c.Authenticator != nil {
authenticatedHandler, err := handlers.NewRequestAuthenticator(m.requestContextMapper, c.Authenticator, handlers.Unauthorized(c.SupportsBasicAuth), handler)
if err != nil {
glog.Fatalf("Could not initialize authenticator: %v", err)
}
handler = authenticatedHandler
}
// Install root web services
m.handlerContainer.Add(m.rootWebService)
// TODO: Make this optional? Consumers of master depend on this currently.
m.Handler = handler
if m.enableSwaggerSupport {
m.InstallSwaggerAPI()
}
// After all wrapping is done, put a context filter around both handlers
if handler, err := api.NewRequestContextFilter(m.requestContextMapper, m.Handler); err != nil {
glog.Fatalf("Could not initialize request context filter: %v", err)
} else {
m.Handler = handler
}
if handler, err := api.NewRequestContextFilter(m.requestContextMapper, m.InsecureHandler); err != nil {
glog.Fatalf("Could not initialize request context filter: %v", err)
} else {
m.InsecureHandler = handler
}
// TODO: Attempt clean shutdown?
if m.enableCoreControllers {
m.NewBootstrapController().Start()
}
}