Config bugfix (#104)

* fix some config bugs

* go fmt

internal/config/config.go

@@ -98,7 +98,7 @@ func loadFromFile(path string) (*Config, error) {
 		return nil, fmt.Errorf("could not read file at path %s: %s", path, err)
 	}
 
-	config := &Config{}
+	config := Empty()
 	if err := yaml.Unmarshal(bytes, config); err != nil {
 		return nil, fmt.Errorf("could not unmarshal file at path %s: %s", path, err)
 	}

internal/db/pg/pg.go

@@ -148,6 +148,7 @@ func derivePGOptions(c *config.Config) (*pg.Options, error) {
 	case config.DBTLSModeRequire:
 		tlsConfig = &tls.Config{
 			InsecureSkipVerify: false,
+			ServerName:         c.DBConfig.Address,
 		}
 	}