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config.go
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config.go
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// Copyright 2020 Douyu
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package etcdv3
import (
"time"
"github.com/douyu/jupiter/pkg/conf"
"github.com/douyu/jupiter/pkg/constant"
"github.com/douyu/jupiter/pkg/ecode"
"github.com/douyu/jupiter/pkg/flag"
"github.com/douyu/jupiter/pkg/singleton"
"github.com/douyu/jupiter/pkg/xlog"
"github.com/spf13/cast"
"go.uber.org/zap"
)
var ConfigPrefix = constant.ConfigPrefix + ".etcdv3"
// Config ...
type (
Config struct {
Name string `json:"name"`
Endpoints []string `json:"endpoints"`
CertFile string `json:"certFile"`
KeyFile string `json:"keyFile"`
CaCert string `json:"caCert"`
BasicAuth bool `json:"basicAuth"`
UserName string `json:"userName"`
Password string `json:"-"`
// 连接超时时间
ConnectTimeout time.Duration `json:"connectTimeout"`
Secure bool `json:"secure"`
// 自动同步member list的间隔
AutoSyncInterval time.Duration `json:"autoAsyncInterval"`
TTL int // 单位:s
logger *xlog.Logger
}
)
func (config *Config) BindFlags(fs *flag.FlagSet) {
fs.BoolVar(&config.Secure, "insecure-etcd", true, "--insecure-etcd=true")
}
// DefaultConfig 返回默认配置
func DefaultConfig() *Config {
return &Config{
BasicAuth: false,
ConnectTimeout: cast.ToDuration("5s"),
Secure: false,
logger: xlog.Jupiter().With(xlog.FieldMod("client.etcd")),
}
}
// StdConfig ...
func StdConfig(name string) *Config {
return RawConfig(ConfigPrefix + "." + name)
}
// RawConfig ...
func RawConfig(key string) *Config {
var config = DefaultConfig()
config.Name = key
if err := conf.UnmarshalKey(key, config); err != nil {
config.logger.Panic("client etcd parse config panic", xlog.FieldErrKind(ecode.ErrKindUnmarshalConfigErr), xlog.FieldErr(err), xlog.FieldKey(key), xlog.FieldValueAny(config))
}
return config
}
// WithLogger ...
func (config *Config) WithLogger(logger *xlog.Logger) *Config {
config.logger = logger
return config
}
// Build ...
func (config *Config) Build() (*Client, error) {
return newClient(config)
}
func (config *Config) Singleton() (*Client, error) {
if client, ok := singleton.Load(constant.ModuleRegistryEtcd, config.Name); ok && client != nil {
return client.(*Client), nil
}
client, err := config.Build()
if err != nil {
xlog.Jupiter().Error("build etcd client failed", zap.Error(err))
return nil, err
}
singleton.Store(constant.ModuleRegistryEtcd, config.Name, client)
return client, nil
}
func (config *Config) MustBuild() *Client {
client, err := config.Build()
if err != nil {
xlog.Jupiter().Panic("build etcd client failed", zap.Error(err))
}
return client
}