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client.go
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client.go
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// Copyright 2016-2017 Authors of Cilium
//
// 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 kvstore
import (
"fmt"
log "github.com/Sirupsen/logrus"
)
// Client is the instance of the key-value as configured
var Client KVClient
func initClient() error {
switch backend {
case Consul:
if consulConfig == nil {
return fmt.Errorf("mising consul server address, please specify, e.g. --kvstore-opt consul.address=127.0.0.1:8500")
}
c, err := newConsulClient(consulConfig)
if err != nil {
return err
}
log.Infof("Using consul as key-value store")
Client = c
case Etcd:
if etcdCfgPath == "" && etcdConfig == nil {
return fmt.Errorf("missing etcd endpoints; please specify , e.g. --kvstore-opt etcd.address=127.0.0.1:2379")
}
c, err := newEtcdClient(etcdConfig, etcdCfgPath)
if err != nil {
return err
}
log.Infof("Using etcd as key-value store")
Client = c
case Local:
log.Infof("Using local storage as key-value store")
Client = NewLocalClient()
default:
panic("BUG: kvstore backend not specified")
}
return nil
}