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這篇文章主要講解了“golang怎么通過viper讀取config.yaml文件”,文中的講解內容簡單清晰,易于學習與理解,下面請大家跟著小編的思路慢慢深入,一起來研究和學習“golang怎么通過viper讀取config.yaml文件”吧!
import ( "github.com/spf13/viper" )
放在conf
目錄下,文件名叫config.yaml
# TODO 本地調試時放開 KubeSphere_URL: http://192.168.103.48:3188 # TODO 部署到環境時放開 #KubeSphere_URL: http://ks-apiserver.kubesphere-system.svc:80 KubesphereAdminUser: admin KubespherePassword: Admin123 #TODO 調用梅姐服務的ip,暫用當前,后續需要修改 Other_service_IP: http://192.168.103.48:30412 #Other_service_IP: http://container-cloud-system-controller-manager-metrics-service.container-cloud-system-system.svc:8093 Other_service_URL: /capis/quota.ictnj.io/v1alpha1/namespaces/ #TODO harbor鏡像倉庫地址 HARBOR_URL: https://192.168.66.4:443 HARBOR_ADMIN_USERNAME: admin HARBOR_ADMIN_PASSWD: Harbor12345 HARBOR_IP_HTTPS: 192.168.66.4:443 HARBOR_SSH_ADDRESS: 192.168.103.48:53304 HARBOR_SSH_USERNAME: root HARBOR_SSH_PASSWD: peng123.
放在config目錄下,文件名叫config.go
需要注意的是目錄的問題,如果放在同目錄,直接用configurationPath
,不同的編輯器,
vscode跟golang對相對路徑處理不同
package config import ( "github.com/spf13/viper" ) const ( configurationName = "config" configurationPath = "./conf" // vscode特殊讀取路徑 // configurationPath_vscode = "../conf" ) var Config *viper.Viper func init() { Config = viper.New() Config.SetConfigName(configurationName) Config.AddConfigPath(configurationPath) Config.SetConfigType("yaml") Config.AddConfigPath(configurationPath) if err := config.ReadInConfig(); err != nil { panic(err) } }
如果config.yaml
跟config.go放在同目錄簡單的路徑用上面這個,如果路徑不同,且不同的同事用不同的編譯軟件,可以嘗試下面的路徑兼容
package config import ( "github.com/spf13/viper" ) const ( configurationName = "config" configurationPath = "./conf" // vscode特殊讀取路徑 configurationPath_vscode = "../conf" ) var Config *viper.Viper func init() { Config = viper.New() Config.SetConfigName(configurationName) Config.AddConfigPath(configurationPath) Config.SetConfigType("yaml") if err := Config.ReadInConfig(); err != nil { Config.AddConfigPath(configurationPath_vscode) if err := Config.ReadInConfig(); err != nil { Config.AddConfigPath(configurationPath) panic(err) } } }
Config.GetString("KubeSphere_URL")
type Viper struct { // Delimiter that separates a list of keys // used to access a nested value in one go keyDelim string // A set of paths to look for the config file in configPaths []string // The filesystem to read config from. fs afero.Fs // A set of remote providers to search for the configuration remoteProviders []*defaultRemoteProvider // Name of file to look for inside the path configName string configFile string configType string configPermissions os.FileMode envPrefix string automaticEnvApplied bool envKeyReplacer StringReplacer allowEmptyEnv bool config map[string]interface{} override map[string]interface{} defaults map[string]interface{} kvstore map[string]interface{} pflags map[string]FlagValue env map[string]string aliases map[string]string typeByDefValue bool // Store read properties on the object so that we can write back in order with comments. // This will only be used if the configuration read is a properties file. properties *properties.Properties onConfigChange func(fsnotify.Event) }
func (v *Viper) ReadInConfig() error { jww.INFO.Println("Attempting to read in config file") filename, err := v.getConfigFile() if err != nil { return err } if !stringInSlice(v.getConfigType(), SupportedExts) { return UnsupportedConfigError(v.getConfigType()) } jww.DEBUG.Println("Reading file: ", filename) file, err := afero.ReadFile(v.fs, filename) if err != nil { return err } config := make(map[string]interface{}) err = v.unmarshalReader(bytes.NewReader(file), config) if err != nil { return err } v.config = config return nil }
把yaml文件的鍵值讀取到viper對象的config當中
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