Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func New ¶
func New(ctx context.Context, targetAddr string, parent http.RoundTripper, resolver naming.Resolver, policy LBPolicy) (*tripper, error)
New creates a new load-balanced Round Tripper for a single backend.
This RoundTripper is meant to only dial a single backend, and will throw errors if the req.URL.Host doesn't match the targetAddr.
For resolving backend addresses it uses a grpc.naming.Resolver, allowing for generic use.
Types ¶
type LBPolicy ¶
type LBPolicy interface {
// Picker returns PolicyPicker that is suitable to be used within single request.
Picker() LBPolicyPicker
}
func RoundRobinPolicy ¶
type LBPolicyPicker ¶
type LBPolicyPicker interface {
// Pick decides on which target to use for the request out of the provided ones.
Pick(req *http.Request, currentTargets []*Target) (*Target, error)
// ExcludeHost excludes the given target for a short time. It is useful to report no connection (even temporary).
ExcludeTarget(*Target)
}
LBPolicyPicker decides which target to pick for a given call. Should be short-living.
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