73 lines
1.6 KiB
Go
73 lines
1.6 KiB
Go
/*
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* Copyright IDMesh Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"encoding/json"
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"errors"
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"fmt"
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"log"
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"net/http"
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"os"
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)
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const (
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ServeAddr = ":80"
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EnvKeyConfigFilePath = "CONFIG_FILE_PATH"
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)
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func main() {
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config, err := loadConfig()
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if err != nil {
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log.Fatalf("fail to load config: %v", err)
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}
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server, err := NewRelayServer(config)
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if err != nil {
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log.Fatalf("fail to make server: %v", err)
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}
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log.Println("app serve at:", ServeAddr)
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err = http.ListenAndServe(ServeAddr, server)
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if err != nil {
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if errors.Is(err, http.ErrServerClosed) {
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return
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}
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log.Fatalf("fail to serve: %v", err)
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}
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}
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func loadConfig() (cfg Config, err error) {
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configFilePath := os.Getenv(EnvKeyConfigFilePath)
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if configFilePath == "" {
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configFilePath = "/data/idmesh/settings.json"
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}
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raw, err := os.ReadFile(configFilePath)
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if err != nil {
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return Config{}, fmt.Errorf("fail to read config file: %v", err)
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}
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err = json.Unmarshal(raw, &cfg)
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if err != nil {
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return Config{}, fmt.Errorf("fail to decode config file: %v", err)
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}
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return
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}
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