vendor: update buildkit to opentelemetry support

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi
2021-06-15 21:02:39 -07:00
parent 6ba080d337
commit 334c93fbbe
829 changed files with 89541 additions and 24438 deletions

View File

@ -22,12 +22,15 @@ import (
"errors"
"fmt"
"google.golang.org/grpc/attributes"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/resolver"
)
var logger = grpclog.Component("balancer")
type baseBuilder struct {
name string
pickerBuilder PickerBuilder
@ -39,7 +42,7 @@ func (bb *baseBuilder) Build(cc balancer.ClientConn, opt balancer.BuildOptions)
cc: cc,
pickerBuilder: bb.pickerBuilder,
subConns: make(map[resolver.Address]balancer.SubConn),
subConns: make(map[resolver.Address]subConnInfo),
scStates: make(map[balancer.SubConn]connectivity.State),
csEvltr: &balancer.ConnectivityStateEvaluator{},
config: bb.config,
@ -55,6 +58,11 @@ func (bb *baseBuilder) Name() string {
return bb.name
}
type subConnInfo struct {
subConn balancer.SubConn
attrs *attributes.Attributes
}
type baseBalancer struct {
cc balancer.ClientConn
pickerBuilder PickerBuilder
@ -62,7 +70,7 @@ type baseBalancer struct {
csEvltr *balancer.ConnectivityStateEvaluator
state connectivity.State
subConns map[resolver.Address]balancer.SubConn
subConns map[resolver.Address]subConnInfo // `attributes` is stripped from the keys of this map (the addresses)
scStates map[balancer.SubConn]connectivity.State
picker balancer.Picker
config Config
@ -91,31 +99,57 @@ func (b *baseBalancer) ResolverError(err error) {
func (b *baseBalancer) UpdateClientConnState(s balancer.ClientConnState) error {
// TODO: handle s.ResolverState.ServiceConfig?
if grpclog.V(2) {
grpclog.Infoln("base.baseBalancer: got new ClientConn state: ", s)
if logger.V(2) {
logger.Info("base.baseBalancer: got new ClientConn state: ", s)
}
// Successful resolution; clear resolver error and ensure we return nil.
b.resolverErr = nil
// addrsSet is the set converted from addrs, it's used for quick lookup of an address.
addrsSet := make(map[resolver.Address]struct{})
for _, a := range s.ResolverState.Addresses {
addrsSet[a] = struct{}{}
if _, ok := b.subConns[a]; !ok {
// Strip attributes from addresses before using them as map keys. So
// that when two addresses only differ in attributes pointers (but with
// the same attribute content), they are considered the same address.
//
// Note that this doesn't handle the case where the attribute content is
// different. So if users want to set different attributes to create
// duplicate connections to the same backend, it doesn't work. This is
// fine for now, because duplicate is done by setting Metadata today.
//
// TODO: read attributes to handle duplicate connections.
aNoAttrs := a
aNoAttrs.Attributes = nil
addrsSet[aNoAttrs] = struct{}{}
if scInfo, ok := b.subConns[aNoAttrs]; !ok {
// a is a new address (not existing in b.subConns).
//
// When creating SubConn, the original address with attributes is
// passed through. So that connection configurations in attributes
// (like creds) will be used.
sc, err := b.cc.NewSubConn([]resolver.Address{a}, balancer.NewSubConnOptions{HealthCheckEnabled: b.config.HealthCheck})
if err != nil {
grpclog.Warningf("base.baseBalancer: failed to create new SubConn: %v", err)
logger.Warningf("base.baseBalancer: failed to create new SubConn: %v", err)
continue
}
b.subConns[a] = sc
b.subConns[aNoAttrs] = subConnInfo{subConn: sc, attrs: a.Attributes}
b.scStates[sc] = connectivity.Idle
sc.Connect()
} else {
// Always update the subconn's address in case the attributes
// changed.
//
// The SubConn does a reflect.DeepEqual of the new and old
// addresses. So this is a noop if the current address is the same
// as the old one (including attributes).
scInfo.attrs = a.Attributes
b.subConns[aNoAttrs] = scInfo
b.cc.UpdateAddresses(scInfo.subConn, []resolver.Address{a})
}
}
for a, sc := range b.subConns {
for a, scInfo := range b.subConns {
// a was removed by resolver.
if _, ok := addrsSet[a]; !ok {
b.cc.RemoveSubConn(sc)
b.cc.RemoveSubConn(scInfo.subConn)
delete(b.subConns, a)
// Keep the state of this sc in b.scStates until sc's state becomes Shutdown.
// The entry will be deleted in UpdateSubConnState.
@ -158,9 +192,10 @@ func (b *baseBalancer) regeneratePicker() {
readySCs := make(map[balancer.SubConn]SubConnInfo)
// Filter out all ready SCs from full subConn map.
for addr, sc := range b.subConns {
if st, ok := b.scStates[sc]; ok && st == connectivity.Ready {
readySCs[sc] = SubConnInfo{Address: addr}
for addr, scInfo := range b.subConns {
if st, ok := b.scStates[scInfo.subConn]; ok && st == connectivity.Ready {
addr.Attributes = scInfo.attrs
readySCs[scInfo.subConn] = SubConnInfo{Address: addr}
}
}
b.picker = b.pickerBuilder.Build(PickerBuildInfo{ReadySCs: readySCs})
@ -168,13 +203,13 @@ func (b *baseBalancer) regeneratePicker() {
func (b *baseBalancer) UpdateSubConnState(sc balancer.SubConn, state balancer.SubConnState) {
s := state.ConnectivityState
if grpclog.V(2) {
grpclog.Infof("base.baseBalancer: handle SubConn state change: %p, %v", sc, s)
if logger.V(2) {
logger.Infof("base.baseBalancer: handle SubConn state change: %p, %v", sc, s)
}
oldS, ok := b.scStates[sc]
if !ok {
if grpclog.V(2) {
grpclog.Infof("base.baseBalancer: got state changes for an unknown SubConn: %p, %v", sc, s)
if logger.V(2) {
logger.Infof("base.baseBalancer: got state changes for an unknown SubConn: %p, %v", sc, s)
}
return
}

View File

@ -69,14 +69,3 @@ func NewBalancerBuilder(name string, pb PickerBuilder, config Config) balancer.B
config: config,
}
}
// NewBalancerBuilderV2 is temporarily defined for backward compatibility
// reasons.
//
// Deprecated: use NewBalancerBuilder instead.
var NewBalancerBuilderV2 = NewBalancerBuilder
// V2PickerBuilder is temporarily defined for backward compatibility reasons.
//
// Deprecated: use PickerBuilder instead.
type V2PickerBuilder = PickerBuilder