1 // Copyright 2019 The Operator-SDK Authors
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
7 // http://www.apache.org/licenses/LICENSE-2.0
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
22 "github.com/go-logr/logr"
23 "github.com/go-logr/zapr"
25 "go.uber.org/zap/zapcore"
26 logf "sigs.k8s.io/controller-runtime/pkg/runtime/log"
29 func Logger() logr.Logger {
30 return LoggerTo(os.Stderr)
33 func LoggerTo(destWriter io.Writer) logr.Logger {
34 syncer := zapcore.AddSync(destWriter)
37 conf.encoder = &logf.KubeAwareEncoder{Encoder: conf.encoder, Verbose: conf.level.Level() < 0}
39 conf.opts = append(conf.opts, zap.WrapCore(func(core zapcore.Core) zapcore.Core {
40 return zapcore.NewSampler(core, time.Second, 100, 100)
43 conf.opts = append(conf.opts, zap.AddCallerSkip(1), zap.ErrorOutput(syncer))
44 log := zap.New(zapcore.NewCore(conf.encoder, syncer, conf.level))
45 log = log.WithOptions(conf.opts...)
46 return zapr.NewLogger(log)
50 encoder zapcore.Encoder
56 func getConfig() config {
59 // Set the defaults depending on the log mode (development vs. production)
61 c.encoder = consoleEncoder()
62 c.level = zap.NewAtomicLevelAt(zap.DebugLevel)
63 c.opts = append(c.opts, zap.Development(), zap.AddStacktrace(zap.ErrorLevel))
66 c.encoder = jsonEncoder()
67 c.level = zap.NewAtomicLevelAt(zap.InfoLevel)
68 c.opts = append(c.opts, zap.AddStacktrace(zap.WarnLevel))
72 // Override the defaults if the flags were set explicitly on the command line
74 c.encoder = encoderVal.encoder
77 c.level = zap.NewAtomicLevelAt(levelVal.level)
80 c.sample = sampleVal.sample
83 // Disable sampling when we are in debug mode. Otherwise, this will
84 // cause index out of bounds errors in the sampling code.
85 if c.level.Level() < -1 {