Package internal contains functions/structs shared by xds balancers/resolvers.



const XDSClientID = clientID("xdsClientID")

XDSClientID is the attributes key used to pass the address of the xdsClient object shared between the resolver and the balancer. The xdsClient object is created by the resolver and passed to the balancer.


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type LocalityID

type LocalityID struct {
	Region  string `json:"region,omitempty"`
	Zone    string `json:"zone,omitempty"`
	SubZone string `json:"subZone,omitempty"`

LocalityID is xds.Locality without XXX fields, so it can be used as map keys.

xds.Locality cannot be map keys because one of the XXX fields is a slice.

func LocalityIDFromString

func LocalityIDFromString(l string) (LocalityID, error)

LocalityIDFromString converts a string representation of locality, of the form region:zone:sub-zone (as generated by the above String() method), into a LocalityID struct.

func (LocalityID) String

func (l LocalityID) String() string

String generates a string representation of LocalityID by adding ":" between the components of the LocalityID.

Source Files


Path Synopsis
balancer Package balancer installs all the xds balancers.
balancer/balancergroup Package balancergroup implements a utility struct to bind multiple balancers into one balancer.
balancer/cdsbalancer Package cdsbalancer implements a balancer to handle CDS responses.
balancer/edsbalancer Package edsbalancer contains EDS balancer implementation.
balancer/lrs Package lrs implements load reporting balancer for xds.
balancer/orca Package orca implements Open Request Cost Aggregation.
balancer/weightedtarget Package weightedtarget implements the weighted_target balancer.
balancer/weightedtarget/weightedaggregator Package weightedaggregator implements state aggregator for weighted_target balancer.
balancer/xdsrouting Package xdsrouting implements the routing balancer for xds.
client Package client implementation a full fledged gRPC client for the xDS API used by the xds resolver and balancer implementations.
client/bootstrap Package bootstrap provides the functionality to initialize certain aspects of an xDS client by reading a bootstrap file.
client/load Package load provides functionality to record and maintain load data.
client/v2 Package v2 provides xDS v2 transport protocol specific functionality.
client/v3 Package v3 provides xDS v3 transport protocol specific functionality.
resolver Package resolver implements the xds resolver, that does LDS and RDS to find the cluster to use.
testutils Package testutils provides utility types, for use in xds tests.
testutils/fakeclient Package fakeclient provides a fake implementation of an xDS client.
testutils/fakeserver Package fakeserver provides a fake implementation of an xDS server.
version Package version defines constants to distinguish between supported xDS API versions.