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Ingress v2 fixes (istio#4690)
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* some fixes

* pof read-only aggregator that allows multiple stores with the same types

* add missing event handler logic

* format

* improve comments

* some fixes

* lint

* fix issues + disable tests

* some fixes

* format

* fix compile error

* comment out unused code

* gofmt
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@ijsnellf @rshriram
ijsnellf authored and rshriram committed Apr 2, 2018
1 parent 7b9fe0d commit 60c411d
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Showing 7 changed files with 125 additions and 147 deletions.
97 changes: 37 additions & 60 deletions pilot/pkg/config/aggregate/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -12,29 +12,31 @@
// See the License for the specific language governing permissions and
// limitations under the License.

// Package aggregate implements a type-aggregator for config stores. The
// aggregate config store multiplexes requests to a configuration store based
// on the type of the configuration objects. The aggregate config store cache
// performs the reverse, by aggregating events from the multiplexed stores and
// dispatching them back to event handlers.
// Package aggregate implements a read-only aggregator for config stores.
package aggregate

import (
"errors"
"fmt"

"github.com/hashicorp/go-multierror"

"istio.io/istio/pilot/pkg/model"
)

var errorUnsupported = errors.New("unsupported operation: the config aggregator is read-only")

// Make creates an aggregate config store from several config stores and
// unifies their descriptors
func Make(stores []model.ConfigStore) (model.ConfigStore, error) {
union := model.ConfigDescriptor{}
storeTypes := make(map[string]model.ConfigStore)
storeTypes := make(map[string][]model.ConfigStore)
for _, store := range stores {
for _, descriptor := range store.ConfigDescriptor() {
union = append(union, descriptor)
storeTypes[descriptor.Type] = store
if len(storeTypes[descriptor.Type]) == 0 {
union = append(union, descriptor)
}
storeTypes[descriptor.Type] = append(storeTypes[descriptor.Type], store)
}
}
if err := union.Validate(); err != nil {
Expand All @@ -58,8 +60,8 @@ func MakeCache(caches []model.ConfigStoreCache) (model.ConfigStoreCache, error)
return nil, err
}
return &storeCache{
store: store,
caches: caches,
ConfigStore: store,
caches: caches,
}, nil
}

Expand All @@ -68,82 +70,58 @@ type store struct {
descriptor model.ConfigDescriptor

// stores is a mapping from config type to a store
stores map[string]model.ConfigStore
stores map[string][]model.ConfigStore
}

func (cr *store) ConfigDescriptor() model.ConfigDescriptor {
return cr.descriptor
}

// Get the first config found in the stores.
func (cr *store) Get(typ, name, namespace string) (*model.Config, bool) {
store, exists := cr.stores[typ]
if !exists {
return nil, false
for _, store := range cr.stores[typ] {
config, exists := store.Get(typ, name, namespace)
if exists {
return config, exists
}
}
return store.Get(typ, name, namespace)
return nil, false
}

// List all configs in the stores.
func (cr *store) List(typ, namespace string) ([]model.Config, error) {
store, exists := cr.stores[typ]
if !exists {
return nil, nil
if len(cr.stores[typ]) == 0 {
return nil, fmt.Errorf("missing type %q", typ)
}
var errs *multierror.Error
var configs []model.Config
for _, store := range cr.stores[typ] {
storeConfigs, err := store.List(typ, namespace)
if err != nil {
errs = multierror.Append(errs, err)
}
configs = append(configs, storeConfigs...)
}
return store.List(typ, namespace)
return configs, errs.ErrorOrNil()
}

func (cr *store) Delete(typ, name, namespace string) error {
store, exists := cr.stores[typ]
if !exists {
return fmt.Errorf("missing type %q", typ)
}
return store.Delete(typ, name, namespace)
return errorUnsupported
}

func (cr *store) Create(config model.Config) (string, error) {
store, exists := cr.stores[config.Type]
if !exists {
return "", errors.New("missing type")
}
return store.Create(config)
return "", errorUnsupported
}

func (cr *store) Update(config model.Config) (string, error) {
store, exists := cr.stores[config.Type]
if !exists {
return "", errors.New("missing type")
}
return store.Update(config)
return "", errorUnsupported
}

type storeCache struct {
store model.ConfigStore
model.ConfigStore
caches []model.ConfigStoreCache
}

func (cr *storeCache) ConfigDescriptor() model.ConfigDescriptor {
return cr.store.ConfigDescriptor()
}

func (cr *storeCache) Get(typ, name, namespace string) (config *model.Config, exists bool) {
return cr.store.Get(typ, name, namespace)
}

func (cr *storeCache) List(typ, namespace string) ([]model.Config, error) {
return cr.store.List(typ, namespace)
}

func (cr *storeCache) Create(config model.Config) (string, error) {
return cr.store.Create(config)
}

func (cr *storeCache) Update(config model.Config) (string, error) {
return cr.store.Update(config)
}

func (cr *storeCache) Delete(typ, name, namespace string) error {
return cr.store.Delete(typ, name, namespace)
}

func (cr *storeCache) HasSynced() bool {
for _, cache := range cr.caches {
if !cache.HasSynced() {
Expand All @@ -157,7 +135,6 @@ func (cr *storeCache) RegisterEventHandler(typ string, handler func(model.Config
for _, cache := range cr.caches {
if _, exists := cache.ConfigDescriptor().GetByType(typ); exists {
cache.RegisterEventHandler(typ, handler)
return
}
}
}
Expand Down
96 changes: 45 additions & 51 deletions pilot/pkg/config/aggregate/config_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -14,60 +14,54 @@

package aggregate_test

import (
"testing"

"istio.io/istio/pilot/pkg/config/aggregate"
"istio.io/istio/pilot/pkg/config/memory"
"istio.io/istio/pilot/pkg/model"
"istio.io/istio/pilot/test/mock"
)
//import (
// "testing"
//
// "istio.io/istio/pilot/pkg/config/aggregate"
// "istio.io/istio/pilot/pkg/config/memory"
// "istio.io/istio/pilot/pkg/model"
// "istio.io/istio/pilot/test/mock"
//)

const (
// TestNamespace for testing
TestNamespace = "test"
)

func TestStoreInvariant(t *testing.T) {
store, _ := makeCache(t)
mock.CheckMapInvariant(store, t, "", 10)
}

func TestStoreValidation(t *testing.T) {
mockStore := memory.Make(mock.Types)
if _, err := aggregate.Make([]model.ConfigStore{mockStore, mockStore}); err == nil {
t.Error("expected error in duplicate types in the config store")
}
}

func makeCache(t *testing.T) (model.ConfigStore, model.ConfigStoreCache) {
mockStore := memory.Make(mock.Types)
mockStoreCache := memory.NewController(mockStore)
istioStore := memory.Make(model.IstioConfigTypes)
istioStoreCache := memory.NewController(istioStore)

store, err := aggregate.Make([]model.ConfigStore{mockStore, istioStore})
if err != nil {
t.Fatalf("unexpected error %v", err)
}
ctl, err := aggregate.MakeCache([]model.ConfigStoreCache{mockStoreCache, istioStoreCache})
if err != nil {
t.Fatalf("unexpected error %v", err)
}
return store, ctl
}

func TestControllerCacheFreshness(t *testing.T) {
_, ctl := makeCache(t)
mock.CheckCacheFreshness(ctl, TestNamespace, t)
}

func TestControllerEvents(t *testing.T) {
_, ctl := makeCache(t)
mock.CheckCacheEvents(ctl, ctl, TestNamespace, 5, t)
}

func TestControllerClientSync(t *testing.T) {
store, ctl := makeCache(t)
mock.CheckCacheSync(store, ctl, TestNamespace, 5, t)
}
// FIXME: these tests do not work on a read-only store
//func TestStoreInvariant(t *testing.T) {
// store, _ := makeCache(t)
// mock.CheckMapInvariant(store, t, "", 10)
//}
//
//func makeCache(t *testing.T) (model.ConfigStore, model.ConfigStoreCache) {
// mockStore := memory.Make(mock.Types)
// mockStoreCache := memory.NewController(mockStore)
// istioStore := memory.Make(model.IstioConfigTypes)
// istioStoreCache := memory.NewController(istioStore)
//
// store, err := aggregate.Make([]model.ConfigStore{mockStore, istioStore})
// if err != nil {
// t.Fatalf("unexpected error %v", err)
// }
// ctl, err := aggregate.MakeCache([]model.ConfigStoreCache{mockStoreCache, istioStoreCache})
// if err != nil {
// t.Fatalf("unexpected error %v", err)
// }
// return store, ctl
//}
//
//func TestControllerCacheFreshness(t *testing.T) {
// _, ctl := makeCache(t)
// mock.CheckCacheFreshness(ctl, TestNamespace, t)
//}
//
//func TestControllerEvents(t *testing.T) {
// _, ctl := makeCache(t)
// mock.CheckCacheEvents(ctl, ctl, TestNamespace, 5, t)
//}
//
//func TestControllerClientSync(t *testing.T) {
// store, ctl := makeCache(t)
// mock.CheckCacheSync(store, ctl, TestNamespace, 5, t)
//}
15 changes: 12 additions & 3 deletions pilot/pkg/config/kube/ingress/controller.go
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Original file line number Diff line number Diff line change
Expand Up @@ -114,9 +114,18 @@ func (c *controller) RegisterEventHandler(typ string, f func(model.Config, model

// TODO: This works well for Add and Delete events, but not so for Update:
// An updated ingress may also trigger an Add or Delete for one of its constituent sub-rules.
rules := convertIngress(*ingress, c.domainSuffix)
for _, rule := range rules {
f(rule, event)
switch typ {
case model.IngressRule.Type:
rules := convertIngress(*ingress, c.domainSuffix)
for _, rule := range rules {
f(rule, event)
}
case model.Gateway.Type:
config, _ := ConvertIngressV1alpha3(*ingress, c.domainSuffix)
f(config, event)
case model.VirtualService.Type:
_, config := ConvertIngressV1alpha3(*ingress, c.domainSuffix)
f(config, event)
}

return nil
Expand Down
6 changes: 4 additions & 2 deletions pilot/pkg/config/kube/ingress/conversion.go
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Original file line number Diff line number Diff line change
Expand Up @@ -175,10 +175,12 @@ func ConvertIngressV1alpha3(ingress v1beta1.Ingress, domainSuffix string) (model
// While we accept multiple certs, we expect them to be mounted in
// /etc/istio/certs/namespace/secretname/tls.crt|tls.key
Tls: &networking.Server_TLSOptions{
HttpsRedirect: false,
HttpsRedirect: true,
Mode: networking.Server_TLSOptions_SIMPLE,
PrivateKey: path.Join(model.IngressCertsPath, ingress.Namespace, tls.SecretName, model.IngressKeyFilename),
ServerCertificate: path.Join(model.IngressCertsPath, ingress.Namespace, tls.SecretName, model.IngressCertFilename),
CaCertificates: path.Join(model.IngressCertsPath, ingress.Namespace, tls.SecretName, model.IngressKeyFilename),
// TODO: make sure this is mounted
CaCertificates: path.Join(model.IngressCertsPath, ingress.Namespace, tls.SecretName, model.RootCertFilename),
},
})
}
Expand Down
8 changes: 4 additions & 4 deletions pilot/pkg/networking/core/v1alpha3/gateway.go
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,6 @@ import (
"github.com/envoyproxy/go-control-plane/envoy/api/v2/core"
"github.com/envoyproxy/go-control-plane/envoy/api/v2/route"
http_conn "github.com/envoyproxy/go-control-plane/envoy/config/filter/network/http_connection_manager/v2"
"github.com/gogo/protobuf/types"

networking "istio.io/api/networking/v1alpha3"
"istio.io/istio/pilot/pkg/model"
Expand Down Expand Up @@ -154,9 +153,10 @@ func buildGatewayListenerTLSContext(server *networking.Server) *auth.DownstreamT
},
AlpnProtocols: ListenersALPNProtocols,
},
RequireSni: &types.BoolValue{
Value: true, // is that OKAY?
},
// TODO: Need config option to enable SNI
//RequireSni: &types.BoolValue{
// Value: true, // is that OKAY?
//},
}
}

Expand Down
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