added connection string to config

cmd/s3Browser.go

@@ -18,6 +18,7 @@ type args struct {
 	CacheTTL     int64  `arg:"--cache-ttl,env:CACHE_TTL" help:"Time in seconds" default:"30" placeholder:"TTL"`
 	CacheCleanup int64  `arg:"--cache-cleanup,env:CACHE_CLEANUP" help:"Time in seconds" default:"60" placeholder:"CLEANUP"`
 	Verbose      bool   `arg:"-v,--verbose,env:VERBOSE" help:"verbosity level" default:"false"`
+	DBConnection string `arg:"--db,required,env:DB_CONNECTION" help:"DSN in format: https://github.com/go-sql-driver/mysql#dsn-data-source-name"`
 }
 
 func (args) Version() string {
@@ -35,6 +36,7 @@ func main() {
 		S3AccessKey:  args.S3AccessKey,
 		S3SecretKey:  args.S3SecretKey,
 		S3Bucket:     args.S3Bucket,
+		DSN:          args.DBConnection,
 		CacheTTL:     time.Duration(args.CacheTTL) * time.Second,
 		CacheCleanup: time.Duration(args.CacheCleanup) * time.Second,
 		Address:      args.Address,