Initial

app/lib/cfg/cfg.go

@@ -0,0 +1,106 @@
+package cfg
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/kelseyhightower/envconfig"
+	"gopkg.in/yaml.v3"
+)
+
+type ServiceConfig struct {
+	Address string `yaml:"address"`
+	Port    int    `yaml:"port"`
+}
+
+type DatabaseConfig struct {
+	Host     string `yaml:"host"`
+	Port     string `yaml:"port"`
+	Name     string `yaml:"name"`
+	Username string `yaml:"username"`
+	Password string `yaml:"password" json:"-"`
+	DebugSQL bool   `yaml:"debugSQL"`
+}
+
+type ApplicationConfig struct {
+	LogLevel        string `yaml:"logLevel"`
+	LogFile         string `yaml:"logFile"`
+	Debug           bool   `yaml:"debug"`
+	DebugPrint      bool   `yaml:"debugPrint"`
+	DisableSendMail bool   `yaml:"disableSendMail"`
+	IsProduction    bool   `yaml:"isProduction"`
+	MetricsPrefix   string `yaml:"metricsPrefix"`
+}
+
+type S3StorageConfig struct {
+	AccessKey   string `yaml:"accessKey"`
+	SecretKey   string `yaml:"secretKey"`
+	RegionName  string `yaml:"regionName"`
+	EndpointUrl string `yaml:"endpointUrl"`
+	BucketName  string `yaml:"bucketName"`
+	CertPath    string `yaml:"certPath"`
+}
+
+type CertConfig struct {
+	FinaDemoCaCert string `yaml:"finaDemoCaCert"`
+	FinaProdCaCert string `yaml:"finaProdCaCert"`
+	DemoCertOib    string `yaml:"demoCertOib"`
+}
+
+type configStruct struct {
+	Service     ServiceConfig     `yaml:"service"`
+	Database    DatabaseConfig    `yaml:"database"`
+	Application ApplicationConfig `yaml:"application"`
+	S3Storage   S3StorageConfig   `yaml:"s3storage"`
+	Cert        CertConfig        `yaml:"cert"`
+}
+
+const ENV_PREFIX = "FISKALATOR"
+const ENV_CONFIG = ENV_PREFIX + "_CONFIG"
+const DEFAULT_CONFIG_FILE = "config.yaml"
+
+var Config configStruct
+
+func panicWithError(err error) {
+	panic("Config file error: " + err.Error())
+}
+
+func readFile(cfgFile string, cfg *configStruct) {
+	f, err := os.Open(cfgFile)
+	if err != nil {
+		panicWithError(err)
+	}
+	defer f.Close()
+
+	decoder := yaml.NewDecoder(f)
+	err = decoder.Decode(cfg)
+	if err != nil {
+		panicWithError(err)
+	}
+}
+
+func readEnv(cfg *configStruct) {
+	err := envconfig.Process(ENV_PREFIX, cfg)
+	if err != nil {
+		panicWithError(err)
+	}
+}
+
+func Init() {
+	cfgFile := os.Getenv(ENV_CONFIG)
+	if cfgFile == "" {
+		cfgFile = DEFAULT_CONFIG_FILE
+	}
+
+	readFile(cfgFile, &Config)
+	readEnv(&Config)
+
+	maskedCfg := Config
+	maskedCfg.Database.Password = "**password hidden**"
+	maskedCfg.S3Storage.AccessKey = "**access key hidden**"
+	maskedCfg.S3Storage.SecretKey = "**secret key hidden**"
+
+	fmt.Println("--- CONFIG -------------------------------")
+	fmt.Printf("%+v\n", maskedCfg)
+	fmt.Println("------------------------------------------")
+}