mirror of
https://github.com/vmware-tanzu/velero.git
synced 2026-01-03 11:45:20 +00:00
95 lines
3.8 KiB
Go
95 lines
3.8 KiB
Go
/*
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Copyright the Velero contributors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package backend
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import (
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"context"
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"time"
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"github.com/kopia/kopia/repo"
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"github.com/kopia/kopia/repo/blob"
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"github.com/kopia/kopia/repo/blob/throttling"
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"github.com/kopia/kopia/repo/content"
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"github.com/kopia/kopia/repo/encryption"
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"github.com/kopia/kopia/repo/format"
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"github.com/kopia/kopia/repo/hashing"
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"github.com/kopia/kopia/repo/splitter"
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"github.com/vmware-tanzu/velero/pkg/repository/udmrepo"
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)
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const (
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DefaultCacheLimitMB = 5000
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maxCacheDurationSecond = 30
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)
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func setupLimits(ctx context.Context, flags map[string]string) throttling.Limits {
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return throttling.Limits{
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DownloadBytesPerSecond: optionalHaveFloat64(ctx, udmrepo.ThrottleOptionDownloadBytes, flags),
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ListsPerSecond: optionalHaveFloat64(ctx, udmrepo.ThrottleOptionListOps, flags),
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ReadsPerSecond: optionalHaveFloat64(ctx, udmrepo.ThrottleOptionReadOps, flags),
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UploadBytesPerSecond: optionalHaveFloat64(ctx, udmrepo.ThrottleOptionUploadBytes, flags),
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WritesPerSecond: optionalHaveFloat64(ctx, udmrepo.ThrottleOptionWriteOps, flags),
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}
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}
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// SetupNewRepositoryOptions setups the options when creating a new Kopia repository
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func SetupNewRepositoryOptions(ctx context.Context, flags map[string]string) repo.NewRepositoryOptions {
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return repo.NewRepositoryOptions{
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BlockFormat: format.ContentFormat{
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Hash: optionalHaveStringWithDefault(udmrepo.StoreOptionGenHashAlgo, flags, hashing.DefaultAlgorithm),
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Encryption: optionalHaveStringWithDefault(udmrepo.StoreOptionGenEncryptAlgo, flags, encryption.DefaultAlgorithm),
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},
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ObjectFormat: format.ObjectFormat{
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Splitter: optionalHaveStringWithDefault(udmrepo.StoreOptionGenSplitAlgo, flags, splitter.DefaultAlgorithm),
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},
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RetentionMode: blob.RetentionMode(optionalHaveString(udmrepo.StoreOptionGenRetentionMode, flags)),
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RetentionPeriod: optionalHaveDuration(ctx, udmrepo.StoreOptionGenRetentionPeriod, flags),
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}
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}
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// SetupConnectOptions setups the options when connecting to an existing Kopia repository
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func SetupConnectOptions(ctx context.Context, repoOptions udmrepo.RepoOptions) repo.ConnectOptions {
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cacheLimit := optionalHaveIntWithDefault(ctx, udmrepo.StoreOptionCacheLimit, repoOptions.StorageOptions, DefaultCacheLimitMB) << 20
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cacheDir := optionalHaveString(udmrepo.StoreOptionCacheDir, repoOptions.StorageOptions)
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// 80% for data cache and 20% for metadata cache and align to KB
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dataCacheLimit := (cacheLimit / 5 * 4) >> 10
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metadataCacheLimit := (cacheLimit / 5) >> 10
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return repo.ConnectOptions{
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CachingOptions: content.CachingOptions{
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CacheDirectory: cacheDir,
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// softLimit 80%
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ContentCacheSizeBytes: (dataCacheLimit / 5 * 4) << 10,
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MetadataCacheSizeBytes: (metadataCacheLimit / 5 * 4) << 10,
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// hardLimit 100%
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ContentCacheSizeLimitBytes: dataCacheLimit << 10,
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MetadataCacheSizeLimitBytes: metadataCacheLimit << 10,
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MaxListCacheDuration: content.DurationSeconds(time.Duration(maxCacheDurationSecond) * time.Second),
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},
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ClientOptions: repo.ClientOptions{
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Hostname: optionalHaveString(udmrepo.GenOptionOwnerDomain, repoOptions.GeneralOptions),
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Username: optionalHaveString(udmrepo.GenOptionOwnerName, repoOptions.GeneralOptions),
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ReadOnly: optionalHaveBool(ctx, udmrepo.StoreOptionGenReadOnly, repoOptions.GeneralOptions),
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Description: repoOptions.Description,
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},
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}
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}
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