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Improve resource usage in nginx controller

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This commit is contained in:
Manuel de Brito Fontes 2017-09-18 20:53:26 -03:00
parent 1a68536e29
commit cd288b9993
17 changed files with 388 additions and 794 deletions
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4
controllers/nginx/pkg/cmd/controller/nginx.go
View file

@ -124,7 +124,7 @@ type NGINXController struct {
configmap *apiv1.ConfigMap
storeLister ingress.StoreLister
storeLister *ingress.StoreLister
binary string
resolver []net.IP
@ -463,7 +463,7 @@ func (n *NGINXController) SetConfig(cmap *apiv1.ConfigMap) {
}
// SetListers sets the configured store listers in the generic ingress controller
func (n *NGINXController) SetListers(lister ingress.StoreLister) {
func (n *NGINXController) SetListers(lister *ingress.StoreLister) {
n.storeLister = lister
}

38
controllers/nginx/pkg/template/template.go
View file

@ -49,11 +49,9 @@ const (
// Template ...
type Template struct {
tmpl *text_template.Template
fw watch.FileWatcher
s int
tmplBuf *bytes.Buffer
outCmdBuf *bytes.Buffer
tmpl *text_template.Template
fw watch.FileWatcher
s int
}
//NewTemplate returns a new Template instance or an
@ -69,11 +67,9 @@ func NewTemplate(file string, onChange func()) (*Template, error) {
}
return &Template{
tmpl: tmpl,
fw: fw,
s: defBufferSize,
tmplBuf: bytes.NewBuffer(make([]byte, 0, defBufferSize)),
outCmdBuf: bytes.NewBuffer(make([]byte, 0, defBufferSize)),
tmpl: tmpl,
fw: fw,
s: defBufferSize,
}, nil
}
@ -85,15 +81,13 @@ func (t *Template) Close() {
// Write populates a buffer using a template with NGINX configuration
// and the servers and upstreams created by Ingress rules
func (t *Template) Write(conf config.TemplateConfig) ([]byte, error) {
defer t.tmplBuf.Reset()
defer t.outCmdBuf.Reset()
tmplBuf := bytes.NewBuffer(make([]byte, 0, t.s))
outCmdBuf := bytes.NewBuffer(make([]byte, 0, t.s))
defer func() {
if t.s < t.tmplBuf.Cap() {
glog.V(2).Infof("adjusting template buffer size from %v to %v", t.s, t.tmplBuf.Cap())
t.s = t.tmplBuf.Cap()
t.tmplBuf = bytes.NewBuffer(make([]byte, 0, t.tmplBuf.Cap()))
t.outCmdBuf = bytes.NewBuffer(make([]byte, 0, t.outCmdBuf.Cap()))
if t.s < tmplBuf.Cap() {
glog.V(2).Infof("adjusting template buffer size from %v to %v", t.s, tmplBuf.Cap())
t.s = tmplBuf.Cap()
}
}()
@ -105,7 +99,7 @@ func (t *Template) Write(conf config.TemplateConfig) ([]byte, error) {
glog.Infof("NGINX configuration: %v", string(b))
}
err := t.tmpl.Execute(t.tmplBuf, conf)
err := t.tmpl.Execute(tmplBuf, conf)
if err != nil {
return nil, err
}
@ -113,14 +107,14 @@ func (t *Template) Write(conf config.TemplateConfig) ([]byte, error) {
// squeezes multiple adjacent empty lines to be single
// spaced this is to avoid the use of regular expressions
cmd := exec.Command("/ingress-controller/clean-nginx-conf.sh")
cmd.Stdin = t.tmplBuf
cmd.Stdout = t.outCmdBuf
cmd.Stdin = tmplBuf
cmd.Stdout = outCmdBuf
if err := cmd.Run(); err != nil {
glog.Warningf("unexpected error cleaning template: %v", err)
return t.tmplBuf.Bytes(), nil
return tmplBuf.Bytes(), nil
}
return t.outCmdBuf.Bytes(), nil
return outCmdBuf.Bytes(), nil
}
var (

2
controllers/nginx/rootfs/etc/nginx/template/nginx.tmpl
View file

@ -348,6 +348,7 @@ http {
{{ end }}
{{ range $index, $server := $servers }}
server {
server_name {{ $server.Hostname }};
{{ template "SERVER" serverConfig $all $server }}
@ -355,6 +356,7 @@ http {
{{ template "CUSTOM_ERRORS" $all }}
}
{{ if $server.Alias }}
server {
server_name {{ $server.Alias }};

12
core/pkg/base64/base64.go
View file

@ -1,12 +0,0 @@
package base64
import (
"encoding/base64"
"strings"
)
// Encode encodes a string to base64 removing the equals character
func Encode(s string) string {
str := base64.URLEncoding.EncodeToString([]byte(s))
return strings.Replace(str, "=", "", -1)
}

9
core/pkg/ingress/annotations/ratelimit/main.go
View file

@ -17,13 +17,13 @@ limitations under the License.
package ratelimit
import (
"encoding/base64"
"fmt"
"sort"
"strings"
extensions "k8s.io/api/extensions/v1beta1"
"k8s.io/ingress/core/pkg/base64"
"k8s.io/ingress/core/pkg/ingress/annotations/parser"
"k8s.io/ingress/core/pkg/ingress/resolver"
"k8s.io/ingress/core/pkg/net"
@ -218,7 +218,7 @@ func (a ratelimit) Parse(ing *extensions.Ingress) (interface{}, error) {
LimitRate: lr,
LimitRateAfter: lra,
Name: zoneName,
ID: base64.Encode(zoneName),
ID: encode(zoneName),
Whitelist: cidrs,
}, nil
}
@ -248,3 +248,8 @@ func parseCIDRs(s string) ([]string, error) {
return cidrs, nil
}
func encode(s string) string {
str := base64.URLEncoding.EncodeToString([]byte(s))
return strings.Replace(str, "=", "", -1)
}

6
core/pkg/ingress/controller/backend_ssl.go
View file

@ -67,15 +67,11 @@ func (ic *GenericController) syncSecret(key string) {
// getPemCertificate receives a secret, and creates a ingress.SSLCert as return.
// It parses the secret and verifies if it's a keypair, or a 'ca.crt' secret only.
func (ic *GenericController) getPemCertificate(secretName string) (*ingress.SSLCert, error) {
secretInterface, exists, err := ic.secrLister.Store.GetByKey(secretName)
secret, err := ic.listers.Secret.GetByName(secretName)
if err != nil {
return nil, fmt.Errorf("error retrieving secret %v: %v", secretName, err)
}
if !exists {
return nil, fmt.Errorf("secret named %v does not exist", secretName)
}
secret := secretInterface.(*apiv1.Secret)
cert, okcert := secret.Data[apiv1.TLSCertKey]
key, okkey := secret.Data[apiv1.TLSPrivateKeyKey]

14
core/pkg/ingress/controller/backend_ssl_test.go
View file

@ -86,6 +86,13 @@ func buildSecrListerForBackendSSL() store.SecretLister {
return secrLister
}
func buildListers() *ingress.StoreLister {
sl := &ingress.StoreLister{}
sl.Ingress.Store = buildIngListenerForBackendSSL()
sl.Secret.Store = buildSecrListerForBackendSSL()
return sl
}
func buildControllerForBackendSSL() cache_client.Controller {
cfg := &cache_client.Config{
Queue: &MockQueue{Synced: true},
@ -99,8 +106,7 @@ func buildGenericControllerForBackendSSL() *GenericController {
cfg: &Configuration{
Client: buildSimpleClientSetForBackendSSL(),
},
ingLister: buildIngListenerForBackendSSL(),
secrLister: buildSecrListerForBackendSSL(),
listers: buildListers(),
ingController: buildControllerForBackendSSL(),
endpController: buildControllerForBackendSSL(),
@ -162,7 +168,7 @@ func TestSyncSecret(t *testing.T) {
secret.SetNamespace("default")
secret.SetName("foo_secret")
secret.Data = foo.Data
ic.secrLister.Add(secret)
ic.listers.Secret.Add(secret)
key := "default/foo_secret"
// for add
@ -209,7 +215,7 @@ func TestGetPemCertificate(t *testing.T) {
ic := buildGenericControllerForBackendSSL()
secret := buildSecretForBackendSSL()
secret.Data = foo.Data
ic.secrLister.Add(secret)
ic.listers.Secret.Add(secret)
sslCert, err := ic.getPemCertificate(foo.secretName)
if foo.eErr {

363
core/pkg/ingress/controller/controller.go
View file

@ -31,7 +31,6 @@ import (
apiv1 "k8s.io/api/core/v1"
extensions "k8s.io/api/extensions/v1beta1"
"k8s.io/apimachinery/pkg/conversion"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/apimachinery/pkg/util/runtime"
"k8s.io/apimachinery/pkg/util/sets"
@ -39,7 +38,6 @@ import (
"k8s.io/client-go/kubernetes/scheme"
v1core "k8s.io/client-go/kubernetes/typed/core/v1"
"k8s.io/client-go/tools/cache"
fcache "k8s.io/client-go/tools/cache/testing"
"k8s.io/client-go/tools/record"
"k8s.io/client-go/util/flowcontrol"
@ -51,7 +49,6 @@ import (
"k8s.io/ingress/core/pkg/ingress/defaults"
"k8s.io/ingress/core/pkg/ingress/resolver"
"k8s.io/ingress/core/pkg/ingress/status"
"k8s.io/ingress/core/pkg/ingress/store"
"k8s.io/ingress/core/pkg/k8s"
"k8s.io/ingress/core/pkg/net/ssl"
local_strings "k8s.io/ingress/core/pkg/strings"
@ -87,12 +84,7 @@ type GenericController struct {
secrController cache.Controller
mapController cache.Controller
ingLister store.IngressLister
svcLister store.ServiceLister
nodeLister store.NodeLister
endpLister store.EndpointLister
secrLister store.SecretLister
mapLister store.ConfigMapLister
listers *ingress.StoreLister
annotations annotationExtractor
@ -119,6 +111,8 @@ type GenericController struct {
runningConfig *ingress.Configuration
forceReload bool
initialSyncDone bool
}
// Configuration contains all the settings required by an Ingress controller
@ -171,177 +165,18 @@ func newIngressController(config *Configuration) *GenericController {
Component: "ingress-controller",
}),
sslCertTracker: newSSLCertTracker(),
listers: &ingress.StoreLister{},
}
ic.syncQueue = task.NewTaskQueue(ic.syncIngress)
// from here to the end of the method all the code is just boilerplate
// required to watch Ingress, Secrets, ConfigMaps and Endoints.
// This is used to detect new content, updates or removals and act accordingly
ingEventHandler := cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
addIng := obj.(*extensions.Ingress)
if !class.IsValid(addIng, ic.cfg.IngressClass, ic.cfg.DefaultIngressClass) {
a, _ := parser.GetStringAnnotation(class.IngressKey, addIng)
glog.Infof("ignoring add for ingress %v based on annotation %v with value %v", addIng.Name, class.IngressKey, a)
return
}
ic.recorder.Eventf(addIng, apiv1.EventTypeNormal, "CREATE", fmt.Sprintf("Ingress %s/%s", addIng.Namespace, addIng.Name))
ic.syncQueue.Enqueue(obj)
},
DeleteFunc: func(obj interface{}) {
delIng, ok := obj.(*extensions.Ingress)
if !ok {
// If we reached here it means the ingress was deleted but its final state is unrecorded.
tombstone, ok := obj.(cache.DeletedFinalStateUnknown)
if !ok {
glog.Errorf("couldn't get object from tombstone %#v", obj)
return
}
delIng, ok = tombstone.Obj.(*extensions.Ingress)
if !ok {
glog.Errorf("Tombstone contained object that is not an Ingress: %#v", obj)
return
}
}
if !class.IsValid(delIng, ic.cfg.IngressClass, ic.cfg.DefaultIngressClass) {
glog.Infof("ignoring delete for ingress %v based on annotation %v", delIng.Name, class.IngressKey)
return
}
ic.recorder.Eventf(delIng, apiv1.EventTypeNormal, "DELETE", fmt.Sprintf("Ingress %s/%s", delIng.Namespace, delIng.Name))
ic.syncQueue.Enqueue(obj)
},
UpdateFunc: func(old, cur interface{}) {
oldIng := old.(*extensions.Ingress)
curIng := cur.(*extensions.Ingress)
validOld := class.IsValid(oldIng, ic.cfg.IngressClass, ic.cfg.DefaultIngressClass)
validCur := class.IsValid(curIng, ic.cfg.IngressClass, ic.cfg.DefaultIngressClass)
if !validOld && validCur {
glog.Infof("creating ingress %v based on annotation %v", curIng.Name, class.IngressKey)
ic.recorder.Eventf(curIng, apiv1.EventTypeNormal, "CREATE", fmt.Sprintf("Ingress %s/%s", curIng.Namespace, curIng.Name))
} else if validOld && !validCur {
glog.Infof("removing ingress %v based on annotation %v", curIng.Name, class.IngressKey)
ic.recorder.Eventf(curIng, apiv1.EventTypeNormal, "DELETE", fmt.Sprintf("Ingress %s/%s", curIng.Namespace, curIng.Name))
} else if validCur && !reflect.DeepEqual(old, cur) {
ic.recorder.Eventf(curIng, apiv1.EventTypeNormal, "UPDATE", fmt.Sprintf("Ingress %s/%s", curIng.Namespace, curIng.Name))
}
ic.syncQueue.Enqueue(cur)
},
}
secrEventHandler := cache.ResourceEventHandlerFuncs{
UpdateFunc: func(old, cur interface{}) {
if !reflect.DeepEqual(old, cur) {
sec := cur.(*apiv1.Secret)
key := fmt.Sprintf("%v/%v", sec.Namespace, sec.Name)
ic.syncSecret(key)
}
},
DeleteFunc: func(obj interface{}) {
sec, ok := obj.(*apiv1.Secret)
if !ok {
// If we reached here it means the secret was deleted but its final state is unrecorded.
tombstone, ok := obj.(cache.DeletedFinalStateUnknown)
if !ok {
glog.Errorf("couldn't get object from tombstone %#v", obj)
return
}
sec, ok = tombstone.Obj.(*apiv1.Secret)
if !ok {
glog.Errorf("Tombstone contained object that is not a Secret: %#v", obj)
return
}
}
key := fmt.Sprintf("%v/%v", sec.Namespace, sec.Name)
ic.sslCertTracker.DeleteAll(key)
},
}
eventHandler := cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
ic.syncQueue.Enqueue(obj)
},
DeleteFunc: func(obj interface{}) {
ic.syncQueue.Enqueue(obj)
},
UpdateFunc: func(old, cur interface{}) {
oep := old.(*apiv1.Endpoints)
ocur := cur.(*apiv1.Endpoints)
if !reflect.DeepEqual(ocur.Subsets, oep.Subsets) {
ic.syncQueue.Enqueue(cur)
}
},
}
mapEventHandler := cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
upCmap := obj.(*apiv1.ConfigMap)
mapKey := fmt.Sprintf("%s/%s", upCmap.Namespace, upCmap.Name)
if mapKey == ic.cfg.ConfigMapName {
glog.V(2).Infof("adding configmap %v to backend", mapKey)
ic.cfg.Backend.SetConfig(upCmap)
ic.forceReload = true
}
},
UpdateFunc: func(old, cur interface{}) {
if !reflect.DeepEqual(old, cur) {
upCmap := cur.(*apiv1.ConfigMap)
mapKey := fmt.Sprintf("%s/%s", upCmap.Namespace, upCmap.Name)
if mapKey == ic.cfg.ConfigMapName {
glog.V(2).Infof("updating configmap backend (%v)", mapKey)
ic.cfg.Backend.SetConfig(upCmap)
ic.forceReload = true
}
// updates to configuration configmaps can trigger an update
if mapKey == ic.cfg.ConfigMapName || mapKey == ic.cfg.TCPConfigMapName || mapKey == ic.cfg.UDPConfigMapName {
ic.recorder.Eventf(upCmap, apiv1.EventTypeNormal, "UPDATE", fmt.Sprintf("ConfigMap %v", mapKey))
ic.syncQueue.Enqueue(cur)
}
}
},
}
watchNs := apiv1.NamespaceAll
if ic.cfg.ForceNamespaceIsolation && ic.cfg.Namespace != apiv1.NamespaceAll {
watchNs = ic.cfg.Namespace
}
ic.ingLister.Store, ic.ingController = cache.NewInformer(
cache.NewListWatchFromClient(ic.cfg.Client.ExtensionsV1beta1().RESTClient(), "ingresses", ic.cfg.Namespace, fields.Everything()),
&extensions.Ingress{}, ic.cfg.ResyncPeriod, ingEventHandler)
ic.endpLister.Store, ic.endpController = cache.NewInformer(
cache.NewListWatchFromClient(ic.cfg.Client.CoreV1().RESTClient(), "endpoints", ic.cfg.Namespace, fields.Everything()),
&apiv1.Endpoints{}, ic.cfg.ResyncPeriod, eventHandler)
ic.secrLister.Store, ic.secrController = cache.NewInformer(
cache.NewListWatchFromClient(ic.cfg.Client.CoreV1().RESTClient(), "secrets", watchNs, fields.Everything()),
&apiv1.Secret{}, ic.cfg.ResyncPeriod, secrEventHandler)
ic.mapLister.Store, ic.mapController = cache.NewInformer(
cache.NewListWatchFromClient(ic.cfg.Client.CoreV1().RESTClient(), "configmaps", watchNs, fields.Everything()),
&apiv1.ConfigMap{}, ic.cfg.ResyncPeriod, mapEventHandler)
ic.svcLister.Store, ic.svcController = cache.NewInformer(
cache.NewListWatchFromClient(ic.cfg.Client.CoreV1().RESTClient(), "services", ic.cfg.Namespace, fields.Everything()),
&apiv1.Service{}, ic.cfg.ResyncPeriod, cache.ResourceEventHandlerFuncs{})
var nodeListerWatcher cache.ListerWatcher
if config.DisableNodeList {
nodeListerWatcher = fcache.NewFakeControllerSource()
} else {
nodeListerWatcher = cache.NewListWatchFromClient(ic.cfg.Client.CoreV1().RESTClient(), "nodes", apiv1.NamespaceAll, fields.Everything())
}
ic.nodeLister.Store, ic.nodeController = cache.NewInformer(
nodeListerWatcher,
&apiv1.Node{}, ic.cfg.ResyncPeriod, cache.ResourceEventHandlerFuncs{})
ic.createListers(config.DisableNodeList)
if config.UpdateStatus {
ic.syncStatus = status.NewStatusSyncer(status.Config{
Client: config.Client,
PublishService: ic.cfg.PublishService,
IngressLister: ic.ingLister,
IngressLister: ic.listers.Ingress,
ElectionID: config.ElectionID,
IngressClass: config.IngressClass,
DefaultIngressClass: config.DefaultIngressClass,
@ -353,14 +188,7 @@ func newIngressController(config *Configuration) *GenericController {
}
ic.annotations = newAnnotationExtractor(ic)
ic.cfg.Backend.SetListers(ingress.StoreLister{
Ingress: ic.ingLister,
Service: ic.svcLister,
Node: ic.nodeLister,
Endpoint: ic.endpLister,
Secret: ic.secrLister,
ConfigMap: ic.mapLister,
})
ic.cfg.Backend.SetListers(ic.listers)
cloner.RegisterDeepCopyFunc(ingress.GetGeneratedDeepCopyFuncs)
@ -384,7 +212,7 @@ func (ic GenericController) GetDefaultBackend() defaults.Backend {
// GetPublishService returns the configured service used to set ingress status
func (ic GenericController) GetPublishService() *apiv1.Service {
s, err := ic.GetService(ic.cfg.PublishService)
s, err := ic.listers.Service.GetByName(ic.cfg.PublishService)
if err != nil {
return nil
}
@ -399,37 +227,12 @@ func (ic GenericController) GetRecorder() record.EventRecorder {
// GetSecret searches for a secret in the local secrets Store
func (ic GenericController) GetSecret(name string) (*apiv1.Secret, error) {
s, exists, err := ic.secrLister.Store.GetByKey(name)
if err != nil {
return nil, err
}
if !exists {
return nil, fmt.Errorf("secret %v was not found", name)
}
return s.(*apiv1.Secret), nil
return ic.listers.Secret.GetByName(name)
}
// GetService searches for a service in the local secrets Store
func (ic GenericController) GetService(name string) (*apiv1.Service, error) {
s, exists, err := ic.svcLister.Store.GetByKey(name)
if err != nil {
return nil, err
}
if !exists {
return nil, fmt.Errorf("service %v was not found", name)
}
return s.(*apiv1.Service), nil
}
func (ic *GenericController) getConfigMap(ns, name string) (*apiv1.ConfigMap, error) {
s, exists, err := ic.mapLister.Store.GetByKey(fmt.Sprintf("%v/%v", ns, name))
if err != nil {
return nil, err
}
if !exists {
return nil, fmt.Errorf("configmap %v was not found", name)
}
return s.(*apiv1.ConfigMap), nil
return ic.listers.Service.GetByName(name)
}
// sync collects all the pieces required to assemble the configuration file and
@ -443,7 +246,7 @@ func (ic *GenericController) syncIngress(key interface{}) error {
}
if name, ok := key.(string); ok {
if obj, exists, _ := ic.ingLister.GetByKey(name); exists {
if obj, exists, _ := ic.listers.Ingress.GetByKey(name); exists {
ing := obj.(*extensions.Ingress)
ic.readSecrets(ing)
}
@ -511,15 +314,15 @@ func (ic *GenericController) getStreamServices(configmapName string, proto apiv1
return []ingress.L4Service{}
}
ns, name, err := k8s.ParseNameNS(configmapName)
_, _, err := k8s.ParseNameNS(configmapName)
if err != nil {
glog.Errorf("unexpected error reading configmap %v: %v", name, err)
glog.Errorf("unexpected error reading configmap %v: %v", configmapName, err)
return []ingress.L4Service{}
}
configmap, err := ic.getConfigMap(ns, name)
configmap, err := ic.listers.ConfigMap.GetByName(configmapName)
if err != nil {
glog.Errorf("unexpected error reading configmap %v: %v", name, err)
glog.Errorf("unexpected error reading configmap %v: %v", configmapName, err)
return []ingress.L4Service{}
}
@ -562,7 +365,7 @@ func (ic *GenericController) getStreamServices(configmapName string, proto apiv1
continue
}
svcObj, svcExists, err := ic.svcLister.Store.GetByKey(nsName)
svcObj, svcExists, err := ic.listers.Service.GetByKey(nsName)
if err != nil {
glog.Warningf("error getting service %v: %v", nsName, err)
continue
@ -578,7 +381,7 @@ func (ic *GenericController) getStreamServices(configmapName string, proto apiv1
var endps []ingress.Endpoint
targetPort, err := strconv.Atoi(svcPort)
if err != nil {
glog.V(3).Infof("searching service %v/%v endpoints using the name '%v'", svcNs, svcName, svcPort)
glog.V(3).Infof("searching service %v endpoints using the name '%v'", svcNs, svcName, svcPort)
for _, sp := range svc.Spec.Ports {
if sp.Name == svcPort {
if sp.Protocol == proto {
@ -631,7 +434,7 @@ func (ic *GenericController) getDefaultUpstream() *ingress.Backend {
Name: defUpstreamName,
}
svcKey := ic.cfg.DefaultService
svcObj, svcExists, err := ic.svcLister.Store.GetByKey(svcKey)
svcObj, svcExists, err := ic.listers.Service.GetByKey(svcKey)
if err != nil {
glog.Warningf("unexpected error searching the default backend %v: %v", ic.cfg.DefaultService, err)
upstream.Endpoints = append(upstream.Endpoints, ic.cfg.Backend.DefaultEndpoint())
@ -656,36 +459,19 @@ func (ic *GenericController) getDefaultUpstream() *ingress.Backend {
return upstream
}
type ingressByRevision []interface{}
func (c ingressByRevision) Len() int { return len(c) }
func (c ingressByRevision) Swap(i, j int) { c[i], c[j] = c[j], c[i] }
func (c ingressByRevision) Less(i, j int) bool {
ir := c[i].(*extensions.Ingress).ResourceVersion
jr := c[j].(*extensions.Ingress).ResourceVersion
return ir < jr
}
// getBackendServers returns a list of Upstream and Server to be used by the backend
// An upstream can be used in multiple servers if the namespace, service name and port are the same
func (ic *GenericController) getBackendServers() ([]*ingress.Backend, []*ingress.Server) {
ings := ic.ingLister.Store.List()
sort.Sort(ingressByRevision(ings))
ings := ic.listers.Ingress.List()
sort.Slice(ings, func(i, j int) bool {
ir := ings[i].(*extensions.Ingress).ResourceVersion
jr := ings[j].(*extensions.Ingress).ResourceVersion
return ir < jr
})
upstreams := ic.createUpstreams(ings)
servers := ic.createServers(ings, upstreams)
// If a server has a hostname equivalent to a pre-existing alias, then we
// remove the alias to avoid conflicts.
for _, server := range servers {
for j, alias := range servers {
if server.Hostname == alias.Alias {
glog.Warningf("There is a conflict with server hostname '%v' and alias '%v' (in server %v). Removing alias to avoid conflicts.",
server.Hostname, alias.Hostname, alias.Hostname)
servers[j].Alias = ""
}
}
}
du := ic.getDefaultUpstream()
upstreams := ic.createUpstreams(ings, du)
servers := ic.createServers(ings, upstreams, du)
for _, ingIf := range ings {
ing := ingIf.(*extensions.Ingress)
@ -860,15 +646,22 @@ func (ic *GenericController) getBackendServers() ([]*ingress.Backend, []*ingress
}
if ic.cfg.SortBackends {
sort.Sort(ingress.BackendByNameServers(aUpstreams))
sort.Slice(aUpstreams, func(a, b int) bool {
return aUpstreams[a].Name < aUpstreams[b].Name
})
}
aServers := make([]*ingress.Server, 0, len(servers))
for _, value := range servers {
sort.Sort(ingress.LocationByPath(value.Locations))
sort.Slice(value.Locations, func(i, j int) bool {
return value.Locations[i].Path > value.Locations[j].Path
})
aServers = append(aServers, value)
}
sort.Sort(ingress.ServerByName(aServers))
sort.Slice(aServers, func(i, j int) bool {
return aServers[i].Hostname < aServers[j].Hostname
})
return aUpstreams, aServers
}
@ -879,7 +672,7 @@ func (ic GenericController) GetAuthCertificate(secretName string) (*resolver.Aut
ic.syncSecret(secretName)
}
_, err := ic.GetSecret(secretName)
_, err := ic.listers.Secret.GetByName(secretName)
if err != nil {
return &resolver.AuthSSLCert{}, fmt.Errorf("unexpected error: %v", err)
}
@ -898,9 +691,9 @@ func (ic GenericController) GetAuthCertificate(secretName string) (*resolver.Aut
// createUpstreams creates the NGINX upstreams for each service referenced in
// Ingress rules. The servers inside the upstream are endpoints.
func (ic *GenericController) createUpstreams(data []interface{}) map[string]*ingress.Backend {
func (ic *GenericController) createUpstreams(data []interface{}, du *ingress.Backend) map[string]*ingress.Backend {
upstreams := make(map[string]*ingress.Backend)
upstreams[defUpstreamName] = ic.getDefaultUpstream()
upstreams[defUpstreamName] = du
for _, ingIf := range data {
ing := ingIf.(*extensions.Ingress)
@ -994,18 +787,13 @@ func (ic *GenericController) createUpstreams(data []interface{}) map[string]*ing
upstreams[name].Endpoints = endp
}
s, exists, err := ic.svcLister.Store.GetByKey(svcKey)
s, err := ic.listers.Service.GetByName(svcKey)
if err != nil {
glog.Warningf("error obtaining service: %v", err)
continue
}
if !exists {
glog.Warningf("service %v does not exists", svcKey)
continue
}
upstreams[name].Service = s.(*apiv1.Service)
upstreams[name].Service = s
}
}
}
@ -1014,7 +802,7 @@ func (ic *GenericController) createUpstreams(data []interface{}) map[string]*ing
}
func (ic *GenericController) getServiceClusterEndpoint(svcKey string, backend *extensions.IngressBackend) (endpoint ingress.Endpoint, err error) {
svcObj, svcExists, err := ic.svcLister.Store.GetByKey(svcKey)
svcObj, svcExists, err := ic.listers.Service.GetByKey(svcKey)
if !svcExists {
return endpoint, fmt.Errorf("service %v does not exist", svcKey)
@ -1035,19 +823,13 @@ func (ic *GenericController) getServiceClusterEndpoint(svcKey string, backend *e
// to a service.
func (ic *GenericController) serviceEndpoints(svcKey, backendPort string,
hz *healthcheck.Upstream) ([]ingress.Endpoint, error) {
svcObj, svcExists, err := ic.svcLister.Store.GetByKey(svcKey)
svc, err := ic.listers.Service.GetByName(svcKey)
var upstreams []ingress.Endpoint
if err != nil {
return upstreams, fmt.Errorf("error getting service %v from the cache: %v", svcKey, err)
}
if !svcExists {
err = fmt.Errorf("service %v does not exist", svcKey)
return upstreams, err
}
svc := svcObj.(*apiv1.Service)
glog.V(3).Infof("obtaining port information for service %v", svcKey)
for _, servicePort := range svc.Spec.Ports {
// targetPort could be a string, use the name or the port (int)
@ -1061,7 +843,15 @@ func (ic *GenericController) serviceEndpoints(svcKey, backendPort string,
}
if ic.cfg.SortBackends {
sort.Sort(ingress.EndpointByAddrPort(endps))
sort.Slice(endps, func(i, j int) bool {
iName := endps[i].Address
jName := endps[j].Address
if iName != jName {
return iName < jName
}
return endps[i].Port < endps[j].Port
})
}
upstreams = append(upstreams, endps...)
break
@ -1084,11 +874,16 @@ func (ic *GenericController) serviceEndpoints(svcKey, backendPort string,
// SSL certificates. Each server is configured with location / using a default
// backend specified by the user or the one inside the ingress spec.
func (ic *GenericController) createServers(data []interface{},
upstreams map[string]*ingress.Backend) map[string]*ingress.Server {
servers := make(map[string]*ingress.Server)
upstreams map[string]*ingress.Backend,
du *ingress.Backend) map[string]*ingress.Server {
servers := make(map[string]*ingress.Server, len(data))
// If a server has a hostname equivalent to a pre-existing alias, then we
// remove the alias to avoid conflicts.
aliases := make(map[string]string, len(data))
bdef := ic.GetDefaultBackend()
ngxProxy := proxy.Configuration{
ngxProxy := &proxy.Configuration{
BodySize: bdef.ProxyBodySize,
ConnectTimeout: bdef.ProxyConnectTimeout,
SendTimeout: bdef.ProxySendTimeout,
@ -1111,7 +906,6 @@ func (ic *GenericController) createServers(data []interface{},
}
// initialize the default server
du := ic.getDefaultUpstream()
servers[defServerName] = &ingress.Server{
Hostname: defServerName,
SSLCertificate: defaultPemFileName,
@ -1137,7 +931,6 @@ func (ic *GenericController) createServers(data []interface{},
sslpt := ic.annotations.SSLPassthrough(ing)
// default upstream server
du := ic.getDefaultUpstream()
un := du.Name
if ing.Spec.Backend != nil {
@ -1178,7 +971,9 @@ func (ic *GenericController) createServers(data []interface{},
Proxy: ngxProxy,
Service: &apiv1.Service{},
},
}, SSLPassthrough: sslpt}
},
SSLPassthrough: sslpt,
}
}
}
@ -1200,6 +995,11 @@ func (ic *GenericController) createServers(data []interface{},
// setup server aliases
servers[host].Alias = aliasAnnotation
if aliasAnnotation != "" {
if _, ok := aliases[aliasAnnotation]; !ok {
aliases[aliasAnnotation] = host
}
}
// only add a certificate if the server does not have one previously configured
if servers[host].SSLCertificate != "" {
@ -1258,6 +1058,12 @@ func (ic *GenericController) createServers(data []interface{},
}
}
for alias, host := range aliases {
if _, ok := servers[alias]; ok {
glog.Warningf("There is a conflict with server hostname '%v' and alias '%v' (in server %v). Removing alias to avoid conflicts.", alias, host)
servers[host].Alias = ""
}
}
return servers
}
@ -1292,7 +1098,7 @@ func (ic *GenericController) getEndpoints(
}
glog.V(3).Infof("getting endpoints for service %v/%v and port %v", s.Namespace, s.Name, servicePort.String())
ep, err := ic.endpLister.GetServiceEndpoints(s)
ep, err := ic.listers.Endpoint.GetServiceEndpoints(s)
if err != nil {
glog.Warningf("unexpected error obtaining service endpoints: %v", err)
return upsServers
@ -1402,9 +1208,16 @@ func (ic GenericController) Start() {
}
// initial sync of secrets to avoid unnecessary reloads
for _, key := range ic.ingLister.ListKeys() {
if obj, exists, _ := ic.ingLister.GetByKey(key); exists {
for _, key := range ic.listers.Ingress.ListKeys() {
if obj, exists, _ := ic.listers.Ingress.GetByKey(key); exists {
ing := obj.(*extensions.Ingress)
if !class.IsValid(ing, ic.cfg.IngressClass, ic.cfg.DefaultIngressClass) {
a, _ := parser.GetStringAnnotation(class.IngressKey, ing)
glog.Infof("ignoring add for ingress %v based on annotation %v with value %v", ing.Name, class.IngressKey, a)
continue
}
ic.readSecrets(ing)
}
}
@ -1417,6 +1230,12 @@ func (ic GenericController) Start() {
go ic.syncStatus.Run(ic.stopCh)
}
ic.initialSyncDone = true
time.Sleep(5 * time.Second)
// force initial sync
ic.syncQueue.Enqueue(&extensions.Ingress{})
<-ic.stopCh
}

200
core/pkg/ingress/controller/listers.go Normal file
View file

@ -0,0 +1,200 @@
/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package controller
import (
"fmt"
"reflect"
"github.com/golang/glog"
apiv1 "k8s.io/api/core/v1"
extensions "k8s.io/api/extensions/v1beta1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/client-go/tools/cache"
fcache "k8s.io/client-go/tools/cache/testing"
"k8s.io/ingress/core/pkg/ingress/annotations/class"
"k8s.io/ingress/core/pkg/ingress/annotations/parser"
)
func (ic *GenericController) createListers(disableNodeLister bool) {
// from here to the end of the method all the code is just boilerplate
// required to watch Ingress, Secrets, ConfigMaps and Endoints.
// This is used to detect new content, updates or removals and act accordingly
ingEventHandler := cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
addIng := obj.(*extensions.Ingress)
if !class.IsValid(addIng, ic.cfg.IngressClass, ic.cfg.DefaultIngressClass) {
a, _ := parser.GetStringAnnotation(class.IngressKey, addIng)
glog.Infof("ignoring add for ingress %v based on annotation %v with value %v", addIng.Name, class.IngressKey, a)
return
}
ic.recorder.Eventf(addIng, apiv1.EventTypeNormal, "CREATE", fmt.Sprintf("Ingress %s/%s", addIng.Namespace, addIng.Name))
if ic.initialSyncDone {
ic.syncQueue.Enqueue(obj)
}
},
DeleteFunc: func(obj interface{}) {
delIng, ok := obj.(*extensions.Ingress)
if !ok {
// If we reached here it means the ingress was deleted but its final state is unrecorded.
tombstone, ok := obj.(cache.DeletedFinalStateUnknown)
if !ok {
glog.Errorf("couldn't get object from tombstone %#v", obj)
return
}
delIng, ok = tombstone.Obj.(*extensions.Ingress)
if !ok {
glog.Errorf("Tombstone contained object that is not an Ingress: %#v", obj)
return
}
}
if !class.IsValid(delIng, ic.cfg.IngressClass, ic.cfg.DefaultIngressClass) {
glog.Infof("ignoring delete for ingress %v based on annotation %v", delIng.Name, class.IngressKey)
return
}
ic.recorder.Eventf(delIng, apiv1.EventTypeNormal, "DELETE", fmt.Sprintf("Ingress %s/%s", delIng.Namespace, delIng.Name))
ic.syncQueue.Enqueue(obj)
},
UpdateFunc: func(old, cur interface{}) {
oldIng := old.(*extensions.Ingress)
curIng := cur.(*extensions.Ingress)
validOld := class.IsValid(oldIng, ic.cfg.IngressClass, ic.cfg.DefaultIngressClass)
validCur := class.IsValid(curIng, ic.cfg.IngressClass, ic.cfg.DefaultIngressClass)
if !validOld && validCur {
glog.Infof("creating ingress %v based on annotation %v", curIng.Name, class.IngressKey)
ic.recorder.Eventf(curIng, apiv1.EventTypeNormal, "CREATE", fmt.Sprintf("Ingress %s/%s", curIng.Namespace, curIng.Name))
} else if validOld && !validCur {
glog.Infof("removing ingress %v based on annotation %v", curIng.Name, class.IngressKey)
ic.recorder.Eventf(curIng, apiv1.EventTypeNormal, "DELETE", fmt.Sprintf("Ingress %s/%s", curIng.Namespace, curIng.Name))
} else if validCur && !reflect.DeepEqual(old, cur) {
ic.recorder.Eventf(curIng, apiv1.EventTypeNormal, "UPDATE", fmt.Sprintf("Ingress %s/%s", curIng.Namespace, curIng.Name))
}
ic.syncQueue.Enqueue(cur)
},
}
secrEventHandler := cache.ResourceEventHandlerFuncs{
UpdateFunc: func(old, cur interface{}) {
if !reflect.DeepEqual(old, cur) {
sec := cur.(*apiv1.Secret)
key := fmt.Sprintf("%v/%v", sec.Namespace, sec.Name)
ic.syncSecret(key)
}
},
DeleteFunc: func(obj interface{}) {
sec, ok := obj.(*apiv1.Secret)
if !ok {
// If we reached here it means the secret was deleted but its final state is unrecorded.
tombstone, ok := obj.(cache.DeletedFinalStateUnknown)
if !ok {
glog.Errorf("couldn't get object from tombstone %#v", obj)
return
}
sec, ok = tombstone.Obj.(*apiv1.Secret)
if !ok {
glog.Errorf("Tombstone contained object that is not a Secret: %#v", obj)
return
}
}
key := fmt.Sprintf("%v/%v", sec.Namespace, sec.Name)
ic.sslCertTracker.DeleteAll(key)
},
}
eventHandler := cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
ic.syncQueue.Enqueue(obj)
},
DeleteFunc: func(obj interface{}) {
ic.syncQueue.Enqueue(obj)
},
UpdateFunc: func(old, cur interface{}) {
oep := old.(*apiv1.Endpoints)
ocur := cur.(*apiv1.Endpoints)
if !reflect.DeepEqual(ocur.Subsets, oep.Subsets) {
ic.syncQueue.Enqueue(cur)
}
},
}
mapEventHandler := cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
upCmap := obj.(*apiv1.ConfigMap)
mapKey := fmt.Sprintf("%s/%s", upCmap.Namespace, upCmap.Name)
if mapKey == ic.cfg.ConfigMapName {
glog.V(2).Infof("adding configmap %v to backend", mapKey)
ic.cfg.Backend.SetConfig(upCmap)
ic.forceReload = true
}
},
UpdateFunc: func(old, cur interface{}) {
if !reflect.DeepEqual(old, cur) {
upCmap := cur.(*apiv1.ConfigMap)
mapKey := fmt.Sprintf("%s/%s", upCmap.Namespace, upCmap.Name)
if mapKey == ic.cfg.ConfigMapName {
glog.V(2).Infof("updating configmap backend (%v)", mapKey)
ic.cfg.Backend.SetConfig(upCmap)
ic.forceReload = true
}
// updates to configuration configmaps can trigger an update
if mapKey == ic.cfg.ConfigMapName || mapKey == ic.cfg.TCPConfigMapName || mapKey == ic.cfg.UDPConfigMapName {
ic.recorder.Eventf(upCmap, apiv1.EventTypeNormal, "UPDATE", fmt.Sprintf("ConfigMap %v", mapKey))
ic.syncQueue.Enqueue(cur)
}
}
},
}
watchNs := apiv1.NamespaceAll
if ic.cfg.ForceNamespaceIsolation && ic.cfg.Namespace != apiv1.NamespaceAll {
watchNs = ic.cfg.Namespace
}
ic.listers.Ingress.Store, ic.ingController = cache.NewInformer(
cache.NewListWatchFromClient(ic.cfg.Client.ExtensionsV1beta1().RESTClient(), "ingresses", ic.cfg.Namespace, fields.Everything()),
&extensions.Ingress{}, ic.cfg.ResyncPeriod, ingEventHandler)
ic.listers.Endpoint.Store, ic.endpController = cache.NewInformer(
cache.NewListWatchFromClient(ic.cfg.Client.CoreV1().RESTClient(), "endpoints", ic.cfg.Namespace, fields.Everything()),
&apiv1.Endpoints{}, ic.cfg.ResyncPeriod, eventHandler)
ic.listers.Secret.Store, ic.secrController = cache.NewInformer(
cache.NewListWatchFromClient(ic.cfg.Client.CoreV1().RESTClient(), "secrets", watchNs, fields.Everything()),
&apiv1.Secret{}, ic.cfg.ResyncPeriod, secrEventHandler)
ic.listers.ConfigMap.Store, ic.mapController = cache.NewInformer(
cache.NewListWatchFromClient(ic.cfg.Client.CoreV1().RESTClient(), "configmaps", watchNs, fields.Everything()),
&apiv1.ConfigMap{}, ic.cfg.ResyncPeriod, mapEventHandler)
ic.listers.Service.Store, ic.svcController = cache.NewInformer(
cache.NewListWatchFromClient(ic.cfg.Client.CoreV1().RESTClient(), "services", ic.cfg.Namespace, fields.Everything()),
&apiv1.Service{}, ic.cfg.ResyncPeriod, cache.ResourceEventHandlerFuncs{})
var nodeListerWatcher cache.ListerWatcher
if disableNodeLister {
nodeListerWatcher = fcache.NewFakeControllerSource()
} else {
nodeListerWatcher = cache.NewListWatchFromClient(ic.cfg.Client.CoreV1().RESTClient(), "nodes", apiv1.NamespaceAll, fields.Everything())
}
ic.listers.Node.Store, ic.nodeController = cache.NewInformer(
nodeListerWatcher,
&apiv1.Node{}, ic.cfg.ResyncPeriod, cache.ResourceEventHandlerFuncs{})
}

2
core/pkg/ingress/controller/util_test.go
View file

@ -51,7 +51,7 @@ func TestMergeLocationAnnotations(t *testing.T) {
"Redirect": redirect.Redirect{},
"Rewrite": rewrite.Redirect{},
"Whitelist": ipwhitelist.SourceRange{},
"Proxy": proxy.Configuration{},
"Proxy": &proxy.Configuration{},
"UsePortInRedirects": true,
}

46
core/pkg/ingress/sort_ingress.go
View file

@ -24,52 +24,6 @@ import (
"k8s.io/apimachinery/pkg/runtime/schema"
)
// BackendByNameServers sorts upstreams by name
type BackendByNameServers []*Backend
func (c BackendByNameServers) Len() int { return len(c) }
func (c BackendByNameServers) Swap(i, j int) { c[i], c[j] = c[j], c[i] }
func (c BackendByNameServers) Less(i, j int) bool {
return c[i].Name < c[j].Name
}
// EndpointByAddrPort sorts endpoints by address and port
type EndpointByAddrPort []Endpoint
func (c EndpointByAddrPort) Len() int { return len(c) }
func (c EndpointByAddrPort) Swap(i, j int) { c[i], c[j] = c[j], c[i] }
func (c EndpointByAddrPort) Less(i, j int) bool {
iName := c[i].Address
jName := c[j].Address
if iName != jName {
return iName < jName
}
iU := c[i].Port
jU := c[j].Port
return iU < jU
}
// ServerByName sorts servers by name
type ServerByName []*Server
func (c ServerByName) Len() int { return len(c) }
func (c ServerByName) Swap(i, j int) { c[i], c[j] = c[j], c[i] }
func (c ServerByName) Less(i, j int) bool {
return c[i].Hostname < c[j].Hostname
}
// LocationByPath sorts location by path in descending order
// Location / is the last one
type LocationByPath []*Location
func (c LocationByPath) Len() int { return len(c) }
func (c LocationByPath) Swap(i, j int) { c[i], c[j] = c[j], c[i] }
func (c LocationByPath) Less(i, j int) bool {
return c[i].Path > c[j].Path
}
// SSLCert describes a SSL certificate to be used in a server
type SSLCert struct {
metav1.ObjectMeta `json:"metadata,omitempty"`

341
core/pkg/ingress/sort_ingress_test.go
View file

@ -22,347 +22,6 @@ import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
func buildBackendByNameServers() BackendByNameServers {
return []*Backend{
{
Name: "foo1",
Secure: true,
Endpoints: []Endpoint{},
},
{
Name: "foo2",
Secure: false,
Endpoints: []Endpoint{},
},
{
Name: "foo3",
Secure: true,
Endpoints: []Endpoint{},
},
}
}
func TestBackendByNameServersLen(t *testing.T) {
fooTests := []struct {
backends BackendByNameServers
el int
}{
{[]*Backend{}, 0},
{buildBackendByNameServers(), 3},
{nil, 0},
}
for _, fooTest := range fooTests {
r := fooTest.backends.Len()
if r != fooTest.el {
t.Errorf("returned %v but expected %v for the len of BackendByNameServers: %v", r, fooTest.el, fooTest.backends)
}
}
}
func TestBackendByNameServersSwap(t *testing.T) {
fooTests := []struct {
backends BackendByNameServers
i int
j int
}{
{buildBackendByNameServers(), 0, 1},
{buildBackendByNameServers(), 2, 1},
}
for _, fooTest := range fooTests {
fooi := fooTest.backends[fooTest.i]
fooj := fooTest.backends[fooTest.j]
fooTest.backends.Swap(fooTest.i, fooTest.j)
if fooi.Name != fooTest.backends[fooTest.j].Name || fooj.Name != fooTest.backends[fooTest.i].Name {
t.Errorf("failed to swap for ByNameServers, foo: %v", fooTest)
}
}
}
func TestBackendByNameServersLess(t *testing.T) {
fooTests := []struct {
backends BackendByNameServers
i int
j int
er bool
}{
// order by name
{buildBackendByNameServers(), 0, 2, true},
{buildBackendByNameServers(), 1, 0, false},
}
for _, fooTest := range fooTests {
r := fooTest.backends.Less(fooTest.i, fooTest.j)
if r != fooTest.er {
t.Errorf("returned %v but expected %v for the foo: %v", r, fooTest.er, fooTest)
}
}
}
func buildEndpointByAddrPort() EndpointByAddrPort {
return []Endpoint{
{
Address: "127.0.0.1",
Port: "8080",
MaxFails: 3,
FailTimeout: 10,
},
{
Address: "127.0.0.1",
Port: "8081",
MaxFails: 3,
FailTimeout: 10,
},
{
Address: "127.0.0.1",
Port: "8082",
MaxFails: 3,
FailTimeout: 10,
},
{
Address: "127.0.0.2",
Port: "8082",
MaxFails: 3,
FailTimeout: 10,
},
}
}
func TestEndpointByAddrPortLen(t *testing.T) {
fooTests := []struct {
endpoints EndpointByAddrPort
el int
}{
{[]Endpoint{}, 0},
{buildEndpointByAddrPort(), 4},
{nil, 0},
}
for _, fooTest := range fooTests {
r := fooTest.endpoints.Len()
if r != fooTest.el {
t.Errorf("returned %v but expected %v for the len of EndpointByAddrPort: %v", r, fooTest.el, fooTest.endpoints)
}
}
}
func TestEndpointByAddrPortSwap(t *testing.T) {
fooTests := []struct {
endpoints EndpointByAddrPort
i int
j int
}{
{buildEndpointByAddrPort(), 0, 1},
{buildEndpointByAddrPort(), 2, 1},
}
for _, fooTest := range fooTests {
fooi := fooTest.endpoints[fooTest.i]
fooj := fooTest.endpoints[fooTest.j]
fooTest.endpoints.Swap(fooTest.i, fooTest.j)
if fooi.Port != fooTest.endpoints[fooTest.j].Port ||
fooi.Address != fooTest.endpoints[fooTest.j].Address ||
fooj.Port != fooTest.endpoints[fooTest.i].Port ||
fooj.Address != fooTest.endpoints[fooTest.i].Address {
t.Errorf("failed to swap for EndpointByAddrPort, foo: %v", fooTest)
}
}
}
func TestEndpointByAddrPortLess(t *testing.T) {
fooTests := []struct {
endpoints EndpointByAddrPort
i int
j int
er bool
}{
// 1) order by name
// 2) order by port(if the name is the same one)
{buildEndpointByAddrPort(), 0, 1, true},
{buildEndpointByAddrPort(), 2, 1, false},
{buildEndpointByAddrPort(), 2, 3, true},
}
for _, fooTest := range fooTests {
r := fooTest.endpoints.Less(fooTest.i, fooTest.j)
if r != fooTest.er {
t.Errorf("returned %v but expected %v for the foo: %v", r, fooTest.er, fooTest)
}
}
}
func buildServerByName() ServerByName {
return []*Server{
{
Hostname: "foo1",
SSLPassthrough: true,
SSLCertificate: "foo1_cert",
SSLPemChecksum: "foo1_pem",
Locations: []*Location{},
},
{
Hostname: "foo2",
SSLPassthrough: true,
SSLCertificate: "foo2_cert",
SSLPemChecksum: "foo2_pem",
Locations: []*Location{},
},
{
Hostname: "foo3",
SSLPassthrough: false,
SSLCertificate: "foo3_cert",
SSLPemChecksum: "foo3_pem",
Locations: []*Location{},
},
{
Hostname: "_",
SSLPassthrough: false,
SSLCertificate: "foo4_cert",
SSLPemChecksum: "foo4_pem",
Locations: []*Location{},
},
}
}
func TestServerByNameLen(t *testing.T) {
fooTests := []struct {
servers ServerByName
el int
}{
{[]*Server{}, 0},
{buildServerByName(), 4},
{nil, 0},
}
for _, fooTest := range fooTests {
r := fooTest.servers.Len()
if r != fooTest.el {
t.Errorf("returned %v but expected %v for the len of ServerByName: %v", r, fooTest.el, fooTest.servers)
}
}
}
func TestServerByNameSwap(t *testing.T) {
fooTests := []struct {
servers ServerByName
i int
j int
}{
{buildServerByName(), 0, 1},
{buildServerByName(), 2, 1},
}
for _, fooTest := range fooTests {
fooi := fooTest.servers[fooTest.i]
fooj := fooTest.servers[fooTest.j]
fooTest.servers.Swap(fooTest.i, fooTest.j)
if fooi.Hostname != fooTest.servers[fooTest.j].Hostname ||
fooj.Hostname != fooTest.servers[fooTest.i].Hostname {
t.Errorf("failed to swap for ServerByName, foo: %v", fooTest)
}
}
}
func TestServerByNameLess(t *testing.T) {
fooTests := []struct {
servers ServerByName
i int
j int
er bool
}{
{buildServerByName(), 0, 1, true},
{buildServerByName(), 2, 1, false},
{buildServerByName(), 2, 3, false},
}
for _, fooTest := range fooTests {
r := fooTest.servers.Less(fooTest.i, fooTest.j)
if r != fooTest.er {
t.Errorf("returned %v but expected %v for the foo: %v", r, fooTest.er, fooTest)
}
}
}
func buildLocationByPath() LocationByPath {
return []*Location{
{
Path: "a",
IsDefBackend: true,
Backend: "a_back",
},
{
Path: "b",
IsDefBackend: true,
Backend: "b_back",
},
{
Path: "c",
IsDefBackend: true,
Backend: "c_back",
},
}
}
func TestLocationByPath(t *testing.T) {
fooTests := []struct {
locations LocationByPath
el int
}{
{[]*Location{}, 0},
{buildLocationByPath(), 3},
{nil, 0},
}
for _, fooTest := range fooTests {
r := fooTest.locations.Len()
if r != fooTest.el {
t.Errorf("returned %v but expected %v for the len of LocationByPath: %v", r, fooTest.el, fooTest.locations)
}
}
}
func TestLocationByPathSwap(t *testing.T) {
fooTests := []struct {
locations LocationByPath
i int
j int
}{
{buildLocationByPath(), 0, 1},
{buildLocationByPath(), 2, 1},
}
for _, fooTest := range fooTests {
fooi := fooTest.locations[fooTest.i]
fooj := fooTest.locations[fooTest.j]
fooTest.locations.Swap(fooTest.i, fooTest.j)
if fooi.Path != fooTest.locations[fooTest.j].Path ||
fooj.Path != fooTest.locations[fooTest.i].Path {
t.Errorf("failed to swap for LocationByPath, foo: %v", fooTest)
}
}
}
func TestLocationByPathLess(t *testing.T) {
fooTests := []struct {
locations LocationByPath
i int
j int
er bool
}{
// sorts location by path in descending order
{buildLocationByPath(), 0, 1, false},
{buildLocationByPath(), 2, 1, true},
}
for _, fooTest := range fooTests {
r := fooTest.locations.Less(fooTest.i, fooTest.j)
if r != fooTest.er {
t.Errorf("returned %v but expected %v for the foo: %v", r, fooTest.er, fooTest)
}
}
}
func TestGetObjectKindForSSLCert(t *testing.T) {
fk := &SSLCert{
ObjectMeta: metav1.ObjectMeta{},

27
core/pkg/ingress/status/status.go
View file

@ -45,7 +45,7 @@ import (
)
const (
updateInterval = 30 * time.Second
updateInterval = 60 * time.Second
)
// Sync ...
@ -56,14 +56,16 @@ type Sync interface {
// Config ...
type Config struct {
Client clientset.Interface
Client clientset.Interface
PublishService string
IngressLister store.IngressLister
ElectionID string
UpdateStatusOnShutdown bool
IngressLister store.IngressLister
DefaultIngressClass string
IngressClass string
@ -293,7 +295,10 @@ func sliceToStatus(endpoints []string) []apiv1.LoadBalancerIngress {
}
}
sort.Sort(loadBalancerIngressByIP(lbi))
sort.Slice(lbi, func(a, b int) bool {
return lbi[a].IP < lbi[b].IP
})
return lbi
}
@ -328,7 +333,10 @@ func (s *statusSync) updateStatus(newIngressPoint []apiv1.LoadBalancerIngress) {
}
curIPs := currIng.Status.LoadBalancer.Ingress
sort.Sort(loadBalancerIngressByIP(curIPs))
sort.Slice(curIPs, func(a, b int) bool {
return curIPs[a].IP < curIPs[b].IP
})
if ingressSliceEqual(addrs, curIPs) {
glog.V(3).Infof("skipping update of Ingress %v/%v (no change)", currIng.Namespace, currIng.Name)
return
@ -361,12 +369,3 @@ func ingressSliceEqual(lhs, rhs []apiv1.LoadBalancerIngress) bool {
}
return true
}
// loadBalancerIngressByIP sorts LoadBalancerIngress using the field IP
type loadBalancerIngressByIP []apiv1.LoadBalancerIngress
func (c loadBalancerIngressByIP) Len() int { return len(c) }
func (c loadBalancerIngressByIP) Swap(i, j int) { c[i], c[j] = c[j], c[i] }
func (c loadBalancerIngressByIP) Less(i, j int) bool {
return c[i].IP < c[j].IP
}

63
core/pkg/ingress/status/status_test.go
View file

@ -18,7 +18,6 @@ package status
import (
"os"
"sort"
"testing"
"time"
@ -35,7 +34,7 @@ import (
"k8s.io/ingress/core/pkg/task"
)
func buildLoadBalancerIngressByIP() loadBalancerIngressByIP {
func buildLoadBalancerIngressByIP() []apiv1.LoadBalancerIngress {
return []apiv1.LoadBalancerIngress{
{
IP: "10.0.0.1",
@ -232,6 +231,7 @@ func buildIngressListener() store.IngressLister {
},
},
})
return store.IngressLister{Store: s}
}
@ -376,7 +376,6 @@ func TestRunningAddresessWithPods(t *testing.T) {
func TestUpdateStatus(t *testing.T) {
fk := buildStatusSync()
newIPs := buildLoadBalancerIngressByIP()
sort.Sort(loadBalancerIngressByIP(newIPs))
fk.updateStatus(newIPs)
fooIngress1, err1 := fk.Client.Extensions().Ingresses(apiv1.NamespaceDefault).Get("foo_ingress_1", metav1.GetOptions{})
@ -460,61 +459,3 @@ func TestIngressSliceEqual(t *testing.T) {
}
}
}
func TestLoadBalancerIngressByIPLen(t *testing.T) {
fooTests := []struct {
ips loadBalancerIngressByIP
el int
}{
{[]apiv1.LoadBalancerIngress{}, 0},
{buildLoadBalancerIngressByIP(), 4},
{nil, 0},
}
for _, fooTest := range fooTests {
r := fooTest.ips.Len()
if r != fooTest.el {
t.Errorf("returned %v but expected %v ", r, fooTest.el)
}
}
}
func TestLoadBalancerIngressByIPSwap(t *testing.T) {
fooTests := []struct {
ips loadBalancerIngressByIP
i int
j int
}{
{buildLoadBalancerIngressByIP(), 0, 1},
{buildLoadBalancerIngressByIP(), 2, 1},
}
for _, fooTest := range fooTests {
fooi := fooTest.ips[fooTest.i]
fooj := fooTest.ips[fooTest.j]
fooTest.ips.Swap(fooTest.i, fooTest.j)
if fooi.IP != fooTest.ips[fooTest.j].IP ||
fooj.IP != fooTest.ips[fooTest.i].IP {
t.Errorf("failed to swap for loadBalancerIngressByIP")
}
}
}
func TestLoadBalancerIngressByIPLess(t *testing.T) {
fooTests := []struct {
ips loadBalancerIngressByIP
i int
j int
er bool
}{
{buildLoadBalancerIngressByIP(), 0, 1, true},
{buildLoadBalancerIngressByIP(), 2, 1, false},
}
for _, fooTest := range fooTests {
r := fooTest.ips.Less(fooTest.i, fooTest.j)
if r != fooTest.er {
t.Errorf("returned %v but expected %v ", r, fooTest.er)
}
}
}

49
core/pkg/ingress/store/main.go
View file

@ -19,7 +19,7 @@ package store
import (
"fmt"
api "k8s.io/api/core/v1"
apiv1 "k8s.io/api/core/v1"
"k8s.io/client-go/tools/cache"
)
@ -29,20 +29,56 @@ type IngressLister struct {
}
// SecretsLister makes a Store that lists Secrets.
type SecretsLister struct {
type SecretLister struct {
cache.Store
}
// GetByName searches for a secret in the local secrets Store
func (sl *SecretLister) GetByName(name string) (*apiv1.Secret, error) {
s, exists, err := sl.GetByKey(name)
if err != nil {
return nil, err
}
if !exists {
return nil, fmt.Errorf("secret %v was not found", name)
}
return s.(*apiv1.Secret), nil
}
// ConfigMapLister makes a Store that lists Configmaps.
type ConfigMapLister struct {
cache.Store
}
// GetByName searches for a configmap in the local configmaps Store
func (cml *ConfigMapLister) GetByName(name string) (*apiv1.ConfigMap, error) {
s, exists, err := cml.GetByKey(name)
if err != nil {
return nil, err
}
if !exists {
return nil, fmt.Errorf("configmap %v was not found", name)
}
return s.(*apiv1.ConfigMap), nil
}
// ServiceLister makes a Store that lists Services.
type ServiceLister struct {
cache.Store
}
// GetByName searches for a service in the local secrets Store
func (sl *ServiceLister) GetByName(name string) (*apiv1.Service, error) {
s, exists, err := sl.GetByKey(name)
if err != nil {
return nil, err
}
if !exists {
return nil, fmt.Errorf("service %v was not found", name)
}
return s.(*apiv1.Service), nil
}
// NodeLister makes a Store that lists Nodes.
type NodeLister struct {
cache.Store
@ -54,9 +90,9 @@ type EndpointLister struct {
}
// GetServiceEndpoints returns the endpoints of a service, matched on service name.
func (s *EndpointLister) GetServiceEndpoints(svc *api.Service) (ep api.Endpoints, err error) {
func (s *EndpointLister) GetServiceEndpoints(svc *apiv1.Service) (ep apiv1.Endpoints, err error) {
for _, m := range s.Store.List() {
ep = *m.(*api.Endpoints)
ep = *m.(*apiv1.Endpoints)
if svc.Name == ep.Name && svc.Namespace == ep.Namespace {
return ep, nil
}
@ -64,8 +100,3 @@ func (s *EndpointLister) GetServiceEndpoints(svc *api.Service) (ep api.Endpoints
err = fmt.Errorf("could not find endpoints for service: %v", svc.Name)
return
}
// SecretLister makes a Store that lists Secres.
type SecretLister struct {
cache.Store
}

4
core/pkg/ingress/types.go
View file

@ -81,7 +81,7 @@ type Controller interface {
SetConfig(*apiv1.ConfigMap)
// SetListers allows the access of store listers present in the generic controller
// This avoid the use of the kubernetes client.
SetListers(StoreLister)
SetListers(*StoreLister)
// BackendDefaults returns the minimum settings required to configure the
// communication to endpoints
BackendDefaults() defaults.Backend
@ -309,7 +309,7 @@ type Location struct {
// Proxy contains information about timeouts and buffer sizes
// to be used in connections against endpoints
// +optional
Proxy proxy.Configuration `json:"proxy,omitempty"`
Proxy *proxy.Configuration `json:"proxy,omitempty"`
// UsePortInRedirects indicates if redirects must specify the port
// +optional
UsePortInRedirects bool `json:"usePortInRedirects"`

2
core/pkg/ingress/types_equals.go
View file

@ -382,7 +382,7 @@ func (l1 *Location) Equal(l2 *Location) bool {
if !(&l1.Whitelist).Equal(&l2.Whitelist) {
return false
}
if !(&l1.Proxy).Equal(&l2.Proxy) {
if !(l1.Proxy).Equal(l2.Proxy) {
return false
}
if l1.UsePortInRedirects != l2.UsePortInRedirects {