open-consul/agent/xds/response.go

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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,
}
}