60 lines
1.6 KiB
Go
60 lines
1.6 KiB
Go
// Copyright 2014 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package storage
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import (
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"fmt"
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"sort"
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info "github.com/google/cadvisor/info/v1"
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)
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type StorageDriver interface {
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AddStats(ref info.ContainerReference, stats *info.ContainerStats) error
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// Close will clear the state of the storage driver. The elements
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// stored in the underlying storage may or may not be deleted depending
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// on the implementation of the storage driver.
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Close() error
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}
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type StorageDriverFunc func() (StorageDriver, error)
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var registeredPlugins = map[string](StorageDriverFunc){}
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func RegisterStorageDriver(name string, f StorageDriverFunc) {
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registeredPlugins[name] = f
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}
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func New(name string) (StorageDriver, error) {
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if name == "" {
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return nil, nil
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}
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f, ok := registeredPlugins[name]
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if !ok {
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return nil, fmt.Errorf("unknown backend storage driver: %s", name)
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}
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return f()
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}
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func ListDrivers() []string {
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drivers := make([]string, 0, len(registeredPlugins))
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for name := range registeredPlugins {
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drivers = append(drivers, name)
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}
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sort.Strings(drivers)
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return drivers
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}
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