| // Copyright Istio Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package kube |
| |
| import ( |
| "strings" |
| ) |
| |
| import ( |
| coreV1 "k8s.io/api/core/v1" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/pkg/config/protocol" |
| ) |
| |
| const ( |
| SMTP = 25 |
| DNS = 53 |
| MySQL = 3306 |
| MongoDB = 27017 |
| ) |
| |
| // Ports be skipped for protocol sniffing. Applications bound to these ports will be broken if |
| // protocol sniffing is enabled. |
| var wellKnownPorts = map[int32]struct{}{ |
| SMTP: {}, |
| DNS: {}, |
| MySQL: {}, |
| MongoDB: {}, |
| } |
| |
| var ( |
| grpcWeb = string(protocol.GRPCWeb) |
| grpcWebLen = len(grpcWeb) |
| ) |
| |
| // ConvertProtocol from k8s protocol and port name |
| func ConvertProtocol(port int32, portName string, proto coreV1.Protocol, appProto *string) protocol.Instance { |
| if proto == coreV1.ProtocolUDP { |
| return protocol.UDP |
| } |
| |
| // If application protocol is set, we will use that |
| // If not, use the port name |
| name := portName |
| if appProto != nil { |
| name = *appProto |
| } |
| |
| // Check if the port name prefix is "grpc-web". Need to do this before the general |
| // prefix check below, since it contains a hyphen. |
| if len(name) >= grpcWebLen && strings.EqualFold(name[:grpcWebLen], grpcWeb) { |
| return protocol.GRPCWeb |
| } |
| |
| // Parse the port name to find the prefix, if any. |
| i := strings.IndexByte(name, '-') |
| if i >= 0 { |
| name = name[:i] |
| } |
| |
| p := protocol.Parse(name) |
| if p == protocol.Unsupported { |
| // Make TCP as default protocol for well know ports if protocol is not specified. |
| if _, has := wellKnownPorts[port]; has { |
| return protocol.TCP |
| } |
| } |
| return p |
| } |