fix: add involves edge from task to agent:nomos at creation

Plus sync vendor directory for Docker build compatibility.

vendor/google.golang.org/grpc/internal/xds/xds.go

@@ -0,0 +1,123 @@
+/*
+ * Copyright 2021 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 xds contains functions, structs, and utilities for working with
+// handshake cluster names, as well as shared components used by xds balancers
+// and resolvers. It is separated from the top-level /internal package to
+// avoid circular dependencies.
+package xds
+
+import (
+	"fmt"
+
+	"google.golang.org/grpc/attributes"
+	"google.golang.org/grpc/internal"
+	"google.golang.org/grpc/internal/xds/clients"
+	"google.golang.org/grpc/resolver"
+)
+
+// handshakeClusterNameKey is the type used as the key to store cluster name in
+// the Attributes field of resolver.Address.
+type handshakeClusterNameKey struct{}
+
+// SetXDSHandshakeClusterName returns a copy of addr in which the Attributes field
+// is updated with the cluster name.
+func SetXDSHandshakeClusterName(addr resolver.Address, clusterName string) resolver.Address {
+	addr.Attributes = addr.Attributes.WithValue(handshakeClusterNameKey{}, clusterName)
+	return addr
+}
+
+// GetXDSHandshakeClusterName returns cluster name stored in attr.
+func GetXDSHandshakeClusterName(attr *attributes.Attributes) (string, bool) {
+	v := attr.Value(handshakeClusterNameKey{})
+	name, ok := v.(string)
+	return name, ok
+}
+
+// addressToTelemetryLabels prepares a telemetry label map from resolver
+// address attributes.
+func addressToTelemetryLabels(addr resolver.Address) map[string]string {
+	cluster, _ := GetXDSHandshakeClusterName(addr.Attributes)
+	locality := LocalityString(GetLocalityID(addr))
+	return map[string]string{
+		"grpc.lb.locality":        locality,
+		"grpc.lb.backend_service": cluster,
+	}
+}
+
+// LocalityString generates a string representation of clients.Locality in the
+// format specified in gRFC A76.
+func LocalityString(l clients.Locality) string {
+	return fmt.Sprintf("{region=%q, zone=%q, sub_zone=%q}", l.Region, l.Zone, l.SubZone)
+}
+
+// IsLocalityEqual allows the values to be compared by Attributes.Equal.
+func IsLocalityEqual(l clients.Locality, o any) bool {
+	ol, ok := o.(clients.Locality)
+	if !ok {
+		return false
+	}
+	return l.Region == ol.Region && l.Zone == ol.Zone && l.SubZone == ol.SubZone
+}
+
+// LocalityFromString converts a string representation of clients.locality as
+// specified in gRFC A76, into a LocalityID struct.
+func LocalityFromString(s string) (ret clients.Locality, _ error) {
+	_, err := fmt.Sscanf(s, "{region=%q, zone=%q, sub_zone=%q}", &ret.Region, &ret.Zone, &ret.SubZone)
+	if err != nil {
+		return clients.Locality{}, fmt.Errorf("%s is not a well formatted locality ID, error: %v", s, err)
+	}
+	return ret, nil
+}
+
+type localityKeyType string
+
+const localityKey = localityKeyType("grpc.xds.internal.address.locality")
+
+// GetLocalityID returns the locality ID of addr.
+func GetLocalityID(addr resolver.Address) clients.Locality {
+	path, _ := addr.BalancerAttributes.Value(localityKey).(clients.Locality)
+	return path
+}
+
+// SetLocalityID sets locality ID in addr to l.
+func SetLocalityID(addr resolver.Address, l clients.Locality) resolver.Address {
+	addr.BalancerAttributes = addr.BalancerAttributes.WithValue(localityKey, l)
+	return addr
+}
+
+// SetLocalityIDInEndpoint sets locality ID in endpoint to l.
+func SetLocalityIDInEndpoint(endpoint resolver.Endpoint, l clients.Locality) resolver.Endpoint {
+	endpoint.Attributes = endpoint.Attributes.WithValue(localityKey, l)
+	return endpoint
+}
+
+// LocalityIDFromEndpoint returns the locality ID of ep.
+func LocalityIDFromEndpoint(ep resolver.Endpoint) clients.Locality {
+	path, _ := ep.Attributes.Value(localityKey).(clients.Locality)
+	return path
+}
+
+// UnknownCSMLabels are TelemetryLabels emitted from CDS if CSM Telemetry Label
+// data is not present in the CDS Resource.
+var UnknownCSMLabels = map[string]string{
+	"csm.service_name":           "unknown",
+	"csm.service_namespace_name": "unknown",
+}
+
+func init() {
+	internal.AddressToTelemetryLabels = addressToTelemetryLabels
+}