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2aa18cafc6
With CoreDNS now supporting etcdv3 as the DNS backend, we can update our federation target to etcdv3. Users will now be able to use etcdv3 server as the federation backbone. Minio will update bucket data to etcdv3 and CoreDNS can pick that data up and serve it as bucket style DNS path.
110 lines
3.8 KiB
Go
110 lines
3.8 KiB
Go
// Copyright (c) 2016 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package zap
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import "go.uber.org/zap/zapcore"
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// An Option configures a Logger.
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type Option interface {
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apply(*Logger)
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}
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// optionFunc wraps a func so it satisfies the Option interface.
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type optionFunc func(*Logger)
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func (f optionFunc) apply(log *Logger) {
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f(log)
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}
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// WrapCore wraps or replaces the Logger's underlying zapcore.Core.
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func WrapCore(f func(zapcore.Core) zapcore.Core) Option {
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return optionFunc(func(log *Logger) {
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log.core = f(log.core)
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})
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}
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// Hooks registers functions which will be called each time the Logger writes
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// out an Entry. Repeated use of Hooks is additive.
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//
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// Hooks are useful for simple side effects, like capturing metrics for the
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// number of emitted logs. More complex side effects, including anything that
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// requires access to the Entry's structured fields, should be implemented as
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// a zapcore.Core instead. See zapcore.RegisterHooks for details.
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func Hooks(hooks ...func(zapcore.Entry) error) Option {
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return optionFunc(func(log *Logger) {
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log.core = zapcore.RegisterHooks(log.core, hooks...)
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})
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}
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// Fields adds fields to the Logger.
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func Fields(fs ...Field) Option {
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return optionFunc(func(log *Logger) {
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log.core = log.core.With(fs)
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})
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}
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// ErrorOutput sets the destination for errors generated by the Logger. Note
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// that this option only affects internal errors; for sample code that sends
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// error-level logs to a different location from info- and debug-level logs,
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// see the package-level AdvancedConfiguration example.
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//
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// The supplied WriteSyncer must be safe for concurrent use. The Open and
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// zapcore.Lock functions are the simplest ways to protect files with a mutex.
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func ErrorOutput(w zapcore.WriteSyncer) Option {
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return optionFunc(func(log *Logger) {
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log.errorOutput = w
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})
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}
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// Development puts the logger in development mode, which makes DPanic-level
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// logs panic instead of simply logging an error.
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func Development() Option {
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return optionFunc(func(log *Logger) {
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log.development = true
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})
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}
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// AddCaller configures the Logger to annotate each message with the filename
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// and line number of zap's caller.
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func AddCaller() Option {
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return optionFunc(func(log *Logger) {
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log.addCaller = true
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})
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}
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// AddCallerSkip increases the number of callers skipped by caller annotation
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// (as enabled by the AddCaller option). When building wrappers around the
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// Logger and SugaredLogger, supplying this Option prevents zap from always
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// reporting the wrapper code as the caller.
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func AddCallerSkip(skip int) Option {
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return optionFunc(func(log *Logger) {
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log.callerSkip += skip
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})
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}
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// AddStacktrace configures the Logger to record a stack trace for all messages at
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// or above a given level.
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func AddStacktrace(lvl zapcore.LevelEnabler) Option {
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return optionFunc(func(log *Logger) {
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log.addStack = lvl
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})
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}
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