frostfs-s3-gw/cmd/s3-gw/main.go

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package main
import (
"context"
"fmt"
"os/signal"
"syscall"
"github.com/spf13/viper"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
// newLogger constructs a zap.Logger instance for current application.
// Panics on failure.
//
// Logger is built from zap's production logging configuration with:
// * parameterized level (debug by default)
// * console encoding
// * ISO8601 time encoding
//
// Logger records a stack trace for all messages at or above fatal level.
//
// See also zapcore.Level, zap.NewProductionConfig, zap.AddStacktrace.
func newLogger(v *viper.Viper) *zap.Logger {
var lvl zapcore.Level
lvlStr := v.GetString(cfgLoggerLevel)
err := lvl.UnmarshalText([]byte(lvlStr))
if err != nil {
panic(fmt.Sprintf("incorrect logger level configuration %s (%v), "+
"value should be one of %v", lvlStr, err, [...]zapcore.Level{
zapcore.DebugLevel,
zapcore.InfoLevel,
zapcore.WarnLevel,
zapcore.ErrorLevel,
zapcore.DPanicLevel,
zapcore.PanicLevel,
zapcore.FatalLevel,
}))
}
c := zap.NewProductionConfig()
c.Level = zap.NewAtomicLevelAt(lvl)
c.Encoding = "console"
c.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
l, err := c.Build(
zap.AddStacktrace(zap.NewAtomicLevelAt(zap.FatalLevel)),
)
if err != nil {
panic(fmt.Sprintf("build zap logger instance: %v", err))
}
return l
}
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func main() {
var (
v = newSettings()
l = newLogger(v)
g, _ = signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP)
a = newApp(g, l, v)
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)
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go a.Server(g)
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a.Wait()
}