43 lines
1.9 KiB
Go
43 lines
1.9 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 "github.com/google/cadvisor/info"
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type StorageDriver interface {
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AddStats(ref info.ContainerReference, stats *info.ContainerStats) error
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// Read most recent stats. numStats indicates max number of stats
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// returned. The returned stats must be consecutive observed stats. If
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// numStats < 0, then return all stats stored in the storage. The
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// returned stats should be sorted in time increasing order, i.e. Most
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// recent stats should be the last.
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RecentStats(containerName string, numStats int) ([]*info.ContainerStats, error)
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// Read the specified percentiles of CPU and memory usage of the container.
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// The implementation decides which time range to look at.
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Percentiles(containerName string, cpuUsagePercentiles []int, memUsagePercentiles []int) (*info.ContainerStatsPercentiles, error)
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// Returns samples of the container stats. If numSamples < 0, then
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// the number of returned samples is implementation defined. Otherwise, the driver
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// should return at most numSamples samples.
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Samples(containerName string, numSamples int) ([]*info.ContainerStatsSample, 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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