Change logging to be json comaptible

internal/logger/logger.go

@@ -0,0 +1,40 @@
+package logger
+
+import (
+	"os"
+	"time"
+
+	"github.com/rs/zerolog"
+)
+
+var Log zerolog.Logger
+
+func init() {
+	output := os.Stderr
+
+	logFormat := os.Getenv("LOG_FORMAT")
+	if logFormat == "json" {
+		Log = zerolog.New(output).With().Timestamp().Logger()
+	} else {
+		Log = zerolog.New(zerolog.ConsoleWriter{
+			Out:        output,
+			TimeFormat: time.RFC3339,
+		}).With().Timestamp().Logger()
+	}
+
+	level := os.Getenv("LOG_LEVEL")
+	switch level {
+	case "debug":
+		Log = Log.Level(zerolog.DebugLevel)
+	case "warn":
+		Log = Log.Level(zerolog.WarnLevel)
+	case "error":
+		Log = Log.Level(zerolog.ErrorLevel)
+	default:
+		Log = Log.Level(zerolog.InfoLevel)
+	}
+}
+
+func With() zerolog.Context {
+	return Log.With()
+}