package xds import ( envoy_core_v3 "github.com/envoyproxy/go-control-plane/envoy/config/core/v3" envoy_discovery_v3 "github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3" envoy_matcher_v3 "github.com/envoyproxy/go-control-plane/envoy/type/matcher/v3" "github.com/golang/protobuf/proto" "github.com/golang/protobuf/ptypes/any" "github.com/golang/protobuf/ptypes/wrappers" ) func createResponse(typeURL string, version, nonce string, resources []proto.Message) (*envoy_discovery_v3.DiscoveryResponse, error) { anys := make([]*any.Any, 0, len(resources)) for _, r := range resources { if r == nil { continue } if any, ok := r.(*any.Any); ok { anys = append(anys, any) continue } data, err := proto.Marshal(r) if err != nil { return nil, err } anys = append(anys, &any.Any{ TypeUrl: typeURL, Value: data, }) } resp := &envoy_discovery_v3.DiscoveryResponse{ VersionInfo: version, Resources: anys, TypeUrl: typeURL, Nonce: nonce, } return resp, nil } func makeAddress(ip string, port int) *envoy_core_v3.Address { return &envoy_core_v3.Address{ Address: &envoy_core_v3.Address_SocketAddress{ SocketAddress: &envoy_core_v3.SocketAddress{ Address: ip, PortSpecifier: &envoy_core_v3.SocketAddress_PortValue{ PortValue: uint32(port), }, }, }, } } func makeUint32Value(n int) *wrappers.UInt32Value { return &wrappers.UInt32Value{Value: uint32(n)} } func makeBoolValue(n bool) *wrappers.BoolValue { return &wrappers.BoolValue{Value: n} } func makeEnvoyRegexMatch(patt string) *envoy_matcher_v3.RegexMatcher { return &envoy_matcher_v3.RegexMatcher{ EngineType: &envoy_matcher_v3.RegexMatcher_GoogleRe2{ GoogleRe2: &envoy_matcher_v3.RegexMatcher_GoogleRE2{}, }, Regex: patt, } }