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package types
import (
"time"
"google.golang.org/protobuf/proto"
)
// Resource is the base interface for the xDS payload.
type Resource interface {
proto.Message
}
// ResourceWithTTL is a Resource with an optional TTL.
type ResourceWithTTL struct {
Resource Resource
TTL *time.Duration
}
// ResourceWithName provides a name for out-of-tree resources.
type ResourceWithName interface {
proto.Message
GetName() string
}
// MarshaledResource is an alias for the serialized binary array.
type MarshaledResource = []byte
// SkipFetchError is the error returned when the cache fetch is short
// circuited due to the client's version already being up-to-date.
type SkipFetchError struct{}
// Error satisfies the error interface
func (e SkipFetchError) Error() string {
return "skip fetch: version up to date"
}
// ResponseType enumeration of supported response types
type ResponseType int
// NOTE: The order of this enum MATTERS!
// https://www.envoyproxy.io/docs/envoy/latest/api-docs/xds_protocol#aggregated-discovery-service
// ADS expects things to be returned in a specific order.
// See the following issue for details: https://github.com/envoyproxy/go-control-plane/issues/526
const (
Cluster ResponseType = iota
Endpoint
Listener
Route
ScopedRoute
VirtualHost
Secret
Runtime
ExtensionConfig
RateLimitConfig
UnknownType // token to count the total number of supported types
)
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