github.com/google/fleetspeak@v0.1.15-0.20240426164851-4f31f62c1aea/fleetspeak/src/config/server/config.go (about) 1 // Copyright 2019 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // Package serer 16 package server 17 18 import ( 19 "errors" 20 "fmt" 21 "os" 22 23 "google.golang.org/protobuf/encoding/prototext" 24 25 cpb "github.com/google/fleetspeak/fleetspeak/src/config/proto/fleetspeak_config" 26 ) 27 28 // WriteConfig validates and then writes a server component configuration. 29 func WriteConfig(cfg *cpb.Config, certPEM, keyPEM []byte) error { 30 if cfg.ServerComponentConfigurationFile == "" { 31 return errors.New("server_component_configuration_file is required") 32 } 33 34 cc := cfg.ComponentsConfig 35 if cc == nil { 36 return errors.New("components_config is required") 37 } 38 if cc.HttpsConfig == nil { 39 return errors.New("components_config.https_config is required") 40 } 41 if cc.HttpsConfig.ListenAddress == "" { 42 return errors.New("components_config.https_config.listen_address is required") 43 } 44 cc.HttpsConfig.Certificates = string(certPEM) 45 cc.HttpsConfig.Key = string(keyPEM) 46 47 b, err := prototext.Marshal(cc) 48 if err != nil { 49 return fmt.Errorf("failed to marshal server component configuration: %v", err) 50 } 51 err = os.WriteFile(cfg.ServerComponentConfigurationFile, b, 0600) 52 if err != nil { 53 return fmt.Errorf("failed to write server component configuration file [%s]: %v", cfg.ServerComponentConfigurationFile, err) 54 } 55 56 return nil 57 }