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config.go
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config.go
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package config
import (
"fmt"
"net/http"
"os"
"strings"
log "github.com/sirupsen/logrus"
"github.com/spf13/viper"
)
// Config ...
type Config struct {
LoaderSource string `mapstructure:"JAMIE_SERVICE_LOADER_SOURCE"`
LoadURL string `mapstructure:"JAMIE_SERVICE_LOAD_URL"`
LoaderHeaders http.Header
LoaderHeadersStr string `mapstructure:"JAMIE_SERVICE_LOADER_HEADERS"`
Port string `mapstructure:"PORT"`
DisableSSLVerify bool `mapstructure:"JAMIE_DISABLE_SSL_VERIFY"`
ExternalHost string `mapstructure:"EXTERNAL_HOST"`
AuthAPIKey string `mapstructure:"JAMIE_SERVICE_API_KEY"`
Cache *Cache
FileSystem *FileSystemLoader
S3 *S3Loader
// FeatWS Ruller Client
FeatWSRullerURL string `mapstructure:"JAMIE_SERVICE_FEATWS_RULLER_URL"`
FeatWSRullerAPIKey string `mapstructure:"JAMIE_SERVICE_FEATWS_RULLER_API_KEY"`
}
// Cache ...
type Cache struct {
ClosedTTL int `mapstructure:"JAMIE_SERVICE_CACHE_CLOSED_TTL"`
CurrentTTL int `mapstructure:"JAMIE_SERVICE_CACHE_CURRENT_TTL"`
}
// FileSystemLoader ...
type FileSystemLoader struct {
Path string `mapstructure:"JAMIE_SERVICE_LOADER_FILE_SYSTEM_PATH"`
}
// S3Loader ...
type S3Loader struct {
Endpoint string `mapstructure:"JAMIE_SERVICE_LOADER_S3_ENDPOINT"`
Bucket string `mapstructure:"JAMIE_SERVICE_LOADER_S3_BUCKET"`
AccessKey string `mapstructure:"JAMIE_SERVICE_LOADER_S3_ACCESS_KEY"`
SecretKey string `mapstructure:"JAMIE_SERVICE_LOADER_S3_SECRET_KEY"`
Secure bool `mapstructure:"JAMIE_SERVICE_LOADER_S3_SSL"`
}
var config = &Config{
Cache: &Cache{},
FileSystem: &FileSystemLoader{},
S3: &S3Loader{},
}
var loaded = false
// LoadConfig ...
func LoadConfig() (err error) {
viper.AddConfigPath("./")
viper.SetConfigFile(".env")
viper.SetConfigType("env")
viper.AutomaticEnv()
viper.SetDefault("JAMIE_SERVICE_LOADER_SOURCE", "file-system")
viper.SetDefault("JAMIE_SERVICE_LOADER_FILE_SYSTEM_PATH", "")
viper.SetDefault("JAMIE_SERVICE_LOADER_S3_ENDPOINT", "")
viper.SetDefault("JAMIE_SERVICE_LOADER_S3_BUCKET", "")
viper.SetDefault("JAMIE_SERVICE_LOADER_S3_ACCESS_KEY", "")
viper.SetDefault("JAMIE_SERVICE_LOADER_S3_SECRET_KEY", "")
viper.SetDefault("JAMIE_SERVICE_LOADER_S3_SSL", "true")
viper.SetDefault("JAMIE_SERVICE_CACHE_CLOSED_TTL", "3600")
viper.SetDefault("JAMIE_SERVICE_CACHE_CURRENT_TTL", "60")
viper.SetDefault("JAMIE_SERVICE_LOADER_URL", "")
viper.SetDefault("JAMIE_SERVICE_LOADER_HEADERS", "")
viper.SetDefault("JAMIE_SERVICE_DEFAULT_RULES", "")
viper.SetDefault("PORT", "8005")
viper.SetDefault("JAMIE_DISABLE_SSL_VERIFY", false)
viper.SetDefault("EXTERNAL_HOST", "localhost:8005")
viper.SetDefault("JAMIE_SERVICE_API_KEY", "")
err = viper.ReadInConfig()
if err != nil {
if err2, ok := err.(*os.PathError); !ok {
err = err2
log.Errorf("Error on Load Config: %v", err)
return
}
}
err = viper.Unmarshal(config)
if err != nil {
log.Fatalf("Error on Unmarshal Config: %v", err)
return
}
err = viper.Unmarshal(config.Cache)
if err != nil {
log.Fatalf("Error on Unmarshal Config Cache: %v", err)
return
}
err = viper.Unmarshal(config.FileSystem)
if err != nil {
log.Fatalf("Error on Unmarshal Config FileSystem: %v", err)
return
}
err = viper.Unmarshal(config.S3)
if err != nil {
log.Fatalf("Error on Unmarshal Config S3: %v", err)
return
}
config.LoaderHeaders = make(http.Header)
resourceLoaderHeaders := strings.Split(config.LoaderHeadersStr, ",")
for _, value := range resourceLoaderHeaders {
entries := strings.Split(value, ":")
if len(entries) == 2 {
config.LoaderHeaders.Set(entries[0], entries[1])
}
}
return
}
// GetConfig ...
func GetConfig() *Config {
if !loaded {
err := LoadConfig()
loaded = true
if err != nil {
panic(fmt.Sprintf("load config error: %s", err))
}
}
return config
}