feat: kubesphere 4.0 (#6115)

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

* feat: kubesphere 4.0

Signed-off-by: ci-bot <ci-bot@kubesphere.io>

---------

Signed-off-by: ci-bot <ci-bot@kubesphere.io>
Co-authored-by: ks-ci-bot <ks-ci-bot@example.com>
Co-authored-by: joyceliu <joyceliu@yunify.com>

vendor/google.golang.org/grpc/resolver/dns/dns_resolver.go

@@ -0,0 +1,36 @@
+/*
+ *
+ * Copyright 2018 gRPC 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 dns implements a dns resolver to be installed as the default resolver
+// in grpc.
+//
+// Deprecated: this package is imported by grpc and should not need to be
+// imported directly by users.
+package dns
+
+import (
+	"google.golang.org/grpc/internal/resolver/dns"
+	"google.golang.org/grpc/resolver"
+)
+
+// NewBuilder creates a dnsBuilder which is used to factory DNS resolvers.
+//
+// Deprecated: import grpc and use resolver.Get("dns") instead.
+func NewBuilder() resolver.Builder {
+	return dns.NewBuilder()
+}

vendor/google.golang.org/grpc/resolver/manual/manual.go

@@ -26,13 +26,16 @@ import (
 	"google.golang.org/grpc/resolver"
 )
 
-// NewBuilderWithScheme creates a new test resolver builder with the given scheme.
+// NewBuilderWithScheme creates a new manual resolver builder with the given
+// scheme. Every instance of the manual resolver may only ever be used with a
+// single grpc.ClientConn. Otherwise, bad things will happen.
 func NewBuilderWithScheme(scheme string) *Resolver {
 	return &Resolver{
-		BuildCallback:      func(resolver.Target, resolver.ClientConn, resolver.BuildOptions) {},
-		ResolveNowCallback: func(resolver.ResolveNowOptions) {},
-		CloseCallback:      func() {},
-		scheme:             scheme,
+		BuildCallback:       func(resolver.Target, resolver.ClientConn, resolver.BuildOptions) {},
+		UpdateStateCallback: func(error) {},
+		ResolveNowCallback:  func(resolver.ResolveNowOptions) {},
+		CloseCallback:       func() {},
+		scheme:              scheme,
 	}
 }
 
@@ -42,6 +45,11 @@ type Resolver struct {
 	// BuildCallback is called when the Build method is called.  Must not be
 	// nil.  Must not be changed after the resolver may be built.
 	BuildCallback func(resolver.Target, resolver.ClientConn, resolver.BuildOptions)
+	// UpdateStateCallback is called when the UpdateState method is called on
+	// the resolver.  The value passed as argument to this callback is the value
+	// returned by the resolver.ClientConn.  Must not be nil.  Must not be
+	// changed after the resolver may be built.
+	UpdateStateCallback func(err error)
 	// ResolveNowCallback is called when the ResolveNow method is called on the
 	// resolver.  Must not be nil.  Must not be changed after the resolver may
 	// be built.
@@ -52,30 +60,34 @@ type Resolver struct {
 	scheme        string
 
 	// Fields actually belong to the resolver.
-	mu             sync.Mutex // Guards access to CC.
-	CC             resolver.ClientConn
-	bootstrapState *resolver.State
+	// Guards access to below fields.
+	mu sync.Mutex
+	CC resolver.ClientConn
+	// Storing the most recent state update makes this resolver resilient to
+	// restarts, which is possible with channel idleness.
+	lastSeenState *resolver.State
 }
 
 // InitialState adds initial state to the resolver so that UpdateState doesn't
 // need to be explicitly called after Dial.
 func (r *Resolver) InitialState(s resolver.State) {
-	r.bootstrapState = &s
+	r.lastSeenState = &s
 }
 
 // Build returns itself for Resolver, because it's both a builder and a resolver.
 func (r *Resolver) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOptions) (resolver.Resolver, error) {
-	r.mu.Lock()
-	r.CC = cc
-	r.mu.Unlock()
 	r.BuildCallback(target, cc, opts)
-	if r.bootstrapState != nil {
-		r.UpdateState(*r.bootstrapState)
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	r.CC = cc
+	if r.lastSeenState != nil {
+		err := r.CC.UpdateState(*r.lastSeenState)
+		go r.UpdateStateCallback(err)
 	}
 	return r, nil
 }
 
-// Scheme returns the test scheme.
+// Scheme returns the manual resolver's scheme.
 func (r *Resolver) Scheme() string {
 	return r.scheme
 }
@@ -93,13 +105,22 @@ func (r *Resolver) Close() {
 // UpdateState calls CC.UpdateState.
 func (r *Resolver) UpdateState(s resolver.State) {
 	r.mu.Lock()
-	r.CC.UpdateState(s)
-	r.mu.Unlock()
+	defer r.mu.Unlock()
+	var err error
+	if r.CC == nil {
+		panic("cannot update state as grpc.Dial with resolver has not been called")
+	}
+	err = r.CC.UpdateState(s)
+	r.lastSeenState = &s
+	r.UpdateStateCallback(err)
 }
 
 // ReportError calls CC.ReportError.
 func (r *Resolver) ReportError(err error) {
 	r.mu.Lock()
+	defer r.mu.Unlock()
+	if r.CC == nil {
+		panic("cannot report error as grpc.Dial with resolver has not been called")
+	}
 	r.CC.ReportError(err)
-	r.mu.Unlock()
 }

vendor/google.golang.org/grpc/resolver/map.go

@@ -20,7 +20,7 @@ package resolver
 
 type addressMapEntry struct {
 	addr  Address
-	value interface{}
+	value any
 }
 
 // AddressMap is a map of addresses to arbitrary values taking into account
@@ -69,7 +69,7 @@ func (l addressMapEntryList) find(addr Address) int {
 }
 
 // Get returns the value for the address in the map, if present.
-func (a *AddressMap) Get(addr Address) (value interface{}, ok bool) {
+func (a *AddressMap) Get(addr Address) (value any, ok bool) {
 	addrKey := toMapKey(&addr)
 	entryList := a.m[addrKey]
 	if entry := entryList.find(addr); entry != -1 {
@@ -79,7 +79,7 @@ func (a *AddressMap) Get(addr Address) (value interface{}, ok bool) {
 }
 
 // Set updates or adds the value to the address in the map.
-func (a *AddressMap) Set(addr Address, value interface{}) {
+func (a *AddressMap) Set(addr Address, value any) {
 	addrKey := toMapKey(&addr)
 	entryList := a.m[addrKey]
 	if entry := entryList.find(addr); entry != -1 {
@@ -127,8 +127,8 @@ func (a *AddressMap) Keys() []Address {
 }
 
 // Values returns a slice of all current map values.
-func (a *AddressMap) Values() []interface{} {
-	ret := make([]interface{}, 0, a.Len())
+func (a *AddressMap) Values() []any {
+	ret := make([]any, 0, a.Len())
 	for _, entryList := range a.m {
 		for _, entry := range entryList {
 			ret = append(ret, entry.value)
@@ -136,3 +136,116 @@ func (a *AddressMap) Values() []interface{} {
 	}
 	return ret
 }
+
+type endpointNode struct {
+	addrs map[string]struct{}
+}
+
+// Equal returns whether the unordered set of addrs are the same between the
+// endpoint nodes.
+func (en *endpointNode) Equal(en2 *endpointNode) bool {
+	if len(en.addrs) != len(en2.addrs) {
+		return false
+	}
+	for addr := range en.addrs {
+		if _, ok := en2.addrs[addr]; !ok {
+			return false
+		}
+	}
+	return true
+}
+
+func toEndpointNode(endpoint Endpoint) endpointNode {
+	en := make(map[string]struct{})
+	for _, addr := range endpoint.Addresses {
+		en[addr.Addr] = struct{}{}
+	}
+	return endpointNode{
+		addrs: en,
+	}
+}
+
+// EndpointMap is a map of endpoints to arbitrary values keyed on only the
+// unordered set of address strings within an endpoint. This map is not thread
+// safe, thus it is unsafe to access concurrently. Must be created via
+// NewEndpointMap; do not construct directly.
+type EndpointMap struct {
+	endpoints map[*endpointNode]any
+}
+
+// NewEndpointMap creates a new EndpointMap.
+func NewEndpointMap() *EndpointMap {
+	return &EndpointMap{
+		endpoints: make(map[*endpointNode]any),
+	}
+}
+
+// Get returns the value for the address in the map, if present.
+func (em *EndpointMap) Get(e Endpoint) (value any, ok bool) {
+	en := toEndpointNode(e)
+	if endpoint := em.find(en); endpoint != nil {
+		return em.endpoints[endpoint], true
+	}
+	return nil, false
+}
+
+// Set updates or adds the value to the address in the map.
+func (em *EndpointMap) Set(e Endpoint, value any) {
+	en := toEndpointNode(e)
+	if endpoint := em.find(en); endpoint != nil {
+		em.endpoints[endpoint] = value
+		return
+	}
+	em.endpoints[&en] = value
+}
+
+// Len returns the number of entries in the map.
+func (em *EndpointMap) Len() int {
+	return len(em.endpoints)
+}
+
+// Keys returns a slice of all current map keys, as endpoints specifying the
+// addresses present in the endpoint keys, in which uniqueness is determined by
+// the unordered set of addresses. Thus, endpoint information returned is not
+// the full endpoint data (drops duplicated addresses and attributes) but can be
+// used for EndpointMap accesses.
+func (em *EndpointMap) Keys() []Endpoint {
+	ret := make([]Endpoint, 0, len(em.endpoints))
+	for en := range em.endpoints {
+		var endpoint Endpoint
+		for addr := range en.addrs {
+			endpoint.Addresses = append(endpoint.Addresses, Address{Addr: addr})
+		}
+		ret = append(ret, endpoint)
+	}
+	return ret
+}
+
+// Values returns a slice of all current map values.
+func (em *EndpointMap) Values() []any {
+	ret := make([]any, 0, len(em.endpoints))
+	for _, val := range em.endpoints {
+		ret = append(ret, val)
+	}
+	return ret
+}
+
+// find returns a pointer to the endpoint node in em if the endpoint node is
+// already present. If not found, nil is returned. The comparisons are done on
+// the unordered set of addresses within an endpoint.
+func (em EndpointMap) find(e endpointNode) *endpointNode {
+	for endpoint := range em.endpoints {
+		if e.Equal(endpoint) {
+			return endpoint
+		}
+	}
+	return nil
+}
+
+// Delete removes the specified endpoint from the map.
+func (em *EndpointMap) Delete(e Endpoint) {
+	en := toEndpointNode(e)
+	if entry := em.find(en); entry != nil {
+		delete(em.endpoints, entry)
+	}
+}

vendor/google.golang.org/grpc/resolver/resolver.go

@@ -77,25 +77,6 @@ func GetDefaultScheme() string {
 	return defaultScheme
 }
 
-// AddressType indicates the address type returned by name resolution.
-//
-// Deprecated: use Attributes in Address instead.
-type AddressType uint8
-
-const (
-	// Backend indicates the address is for a backend server.
-	//
-	// Deprecated: use Attributes in Address instead.
-	Backend AddressType = iota
-	// GRPCLB indicates the address is for a grpclb load balancer.
-	//
-	// Deprecated: to select the GRPCLB load balancing policy, use a service
-	// config with a corresponding loadBalancingConfig.  To supply balancer
-	// addresses to the GRPCLB load balancing policy, set State.Attributes
-	// using balancer/grpclb/state.Set.
-	GRPCLB
-)
-
 // Address represents a server the client connects to.
 //
 // # Experimental
@@ -111,9 +92,6 @@ type Address struct {
 	// the address, instead of the hostname from the Dial target string. In most cases,
 	// this should not be set.
 	//
-	// If Type is GRPCLB, ServerName should be the name of the remote load
-	// balancer, not the name of the backend.
-	//
 	// WARNING: ServerName must only be populated with trusted values. It
 	// is insecure to populate it with data from untrusted inputs since untrusted
 	// values could be used to bypass the authority checks performed by TLS.
@@ -126,27 +104,29 @@ type Address struct {
 	// BalancerAttributes contains arbitrary data about this address intended
 	// for consumption by the LB policy.  These attributes do not affect SubConn
 	// creation, connection establishment, handshaking, etc.
-	BalancerAttributes *attributes.Attributes
-
-	// Type is the type of this address.
 	//
-	// Deprecated: use Attributes instead.
-	Type AddressType
+	// Deprecated: when an Address is inside an Endpoint, this field should not
+	// be used, and it will eventually be removed entirely.
+	BalancerAttributes *attributes.Attributes
 
 	// Metadata is the information associated with Addr, which may be used
 	// to make load balancing decision.
 	//
 	// Deprecated: use Attributes instead.
-	Metadata interface{}
+	Metadata any
 }
 
 // Equal returns whether a and o are identical.  Metadata is compared directly,
 // not with any recursive introspection.
+//
+// This method compares all fields of the address. When used to tell apart
+// addresses during subchannel creation or connection establishment, it might be
+// more appropriate for the caller to implement custom equality logic.
 func (a Address) Equal(o Address) bool {
 	return a.Addr == o.Addr && a.ServerName == o.ServerName &&
 		a.Attributes.Equal(o.Attributes) &&
 		a.BalancerAttributes.Equal(o.BalancerAttributes) &&
-		a.Type == o.Type && a.Metadata == o.Metadata
+		a.Metadata == o.Metadata
 }
 
 // String returns JSON formatted string representation of the address.
@@ -190,11 +170,37 @@ type BuildOptions struct {
 	Dialer func(context.Context, string) (net.Conn, error)
 }
 
+// An Endpoint is one network endpoint, or server, which may have multiple
+// addresses with which it can be accessed.
+type Endpoint struct {
+	// Addresses contains a list of addresses used to access this endpoint.
+	Addresses []Address
+
+	// Attributes contains arbitrary data about this endpoint intended for
+	// consumption by the LB policy.
+	Attributes *attributes.Attributes
+}
+
 // State contains the current Resolver state relevant to the ClientConn.
 type State struct {
 	// Addresses is the latest set of resolved addresses for the target.
+	//
+	// If a resolver sets Addresses but does not set Endpoints, one Endpoint
+	// will be created for each Address before the State is passed to the LB
+	// policy.  The BalancerAttributes of each entry in Addresses will be set
+	// in Endpoints.Attributes, and be cleared in the Endpoint's Address's
+	// BalancerAttributes.
+	//
+	// Soon, Addresses will be deprecated and replaced fully by Endpoints.
 	Addresses []Address
 
+	// Endpoints is the latest set of resolved endpoints for the target.
+	//
+	// If a resolver produces a State containing Endpoints but not Addresses,
+	// it must take care to ensure the LB policies it selects will support
+	// Endpoints.
+	Endpoints []Endpoint
+
 	// ServiceConfig contains the result from parsing the latest service
 	// config.  If it is nil, it indicates no service config is present or the
 	// resolver does not provide service configs.
@@ -234,11 +240,6 @@ type ClientConn interface {
 	//
 	// Deprecated: Use UpdateState instead.
 	NewAddress(addresses []Address)
-	// NewServiceConfig is called by resolver to notify ClientConn a new
-	// service config. The service config should be provided as a json string.
-	//
-	// Deprecated: Use UpdateState instead.
-	NewServiceConfig(serviceConfig string)
 	// ParseServiceConfig parses the provided service config and returns an
 	// object that provides the parsed config.
 	ParseServiceConfig(serviceConfigJSON string) *serviceconfig.ParseResult
@@ -254,20 +255,7 @@ type ClientConn interface {
 // target does not contain a scheme or if the parsed scheme is not registered
 // (i.e. no corresponding resolver available to resolve the endpoint), we will
 // apply the default scheme, and will attempt to reparse it.
-//
-// Examples:
-//
-//   - "dns://some_authority/foo.bar"
-//     Target{Scheme: "dns", Authority: "some_authority", Endpoint: "foo.bar"}
-//   - "foo.bar"
-//     Target{Scheme: resolver.GetDefaultScheme(), Endpoint: "foo.bar"}
-//   - "unknown_scheme://authority/endpoint"
-//     Target{Scheme: resolver.GetDefaultScheme(), Endpoint: "unknown_scheme://authority/endpoint"}
 type Target struct {
-	// Deprecated: use URL.Scheme instead.
-	Scheme string
-	// Deprecated: use URL.Host instead.
-	Authority string
 	// URL contains the parsed dial target with an optional default scheme added
 	// to it if the original dial target contained no scheme or contained an
 	// unregistered scheme. Any query params specified in the original dial
@@ -293,6 +281,11 @@ func (t Target) Endpoint() string {
 	return strings.TrimPrefix(endpoint, "/")
 }
 
+// String returns a string representation of Target.
+func (t Target) String() string {
+	return t.URL.String()
+}
+
 // Builder creates a resolver that will be used to watch name resolution updates.
 type Builder interface {
 	// Build creates a new resolver for the given target.
@@ -322,9 +315,12 @@ type Resolver interface {
 	Close()
 }
 
-// UnregisterForTesting removes the resolver builder with the given scheme from the
-// resolver map.
-// This function is for testing only.
-func UnregisterForTesting(scheme string) {
-	delete(m, scheme)
+// AuthorityOverrider is implemented by Builders that wish to override the
+// default authority for the ClientConn.
+// By default, the authority used is target.Endpoint().
+type AuthorityOverrider interface {
+	// OverrideAuthority returns the authority to use for a ClientConn with the
+	// given target. The implementation must generate it without blocking,
+	// typically in line, and must keep it unchanged.
+	OverrideAuthority(Target) string
 }