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80 lines
2.2 KiB
80 lines
2.2 KiB
5 years ago
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/*
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* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
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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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*/
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package cache
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import (
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"strconv"
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"strings"
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"github.com/minio/minio/cmd/config"
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"github.com/minio/minio/pkg/env"
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)
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// Cache ENVs
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const (
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EnvCacheDrives = "MINIO_CACHE_DRIVES"
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EnvCacheExclude = "MINIO_CACHE_EXCLUDE"
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EnvCacheExpiry = "MINIO_CACHE_EXPIRY"
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EnvCacheMaxUse = "MINIO_CACHE_MAXUSE"
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EnvCacheEncryptionMasterKey = "MINIO_CACHE_ENCRYPTION_MASTER_KEY"
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)
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const (
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cacheEnvDelimiter = ";"
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)
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// LookupConfig - extracts cache configuration provided by environment
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// variables and merge them with provided CacheConfiguration.
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func LookupConfig(cfg Config) (Config, error) {
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if drives := env.Get(EnvCacheDrives, strings.Join(cfg.Drives, ",")); drives != "" {
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driveList, err := parseCacheDrives(strings.Split(drives, cacheEnvDelimiter))
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if err != nil {
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return cfg, err
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}
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cfg.Drives = driveList
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}
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if excludes := env.Get(EnvCacheExclude, strings.Join(cfg.Exclude, ",")); excludes != "" {
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excludeList, err := parseCacheExcludes(strings.Split(excludes, cacheEnvDelimiter))
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if err != nil {
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return cfg, err
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}
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cfg.Exclude = excludeList
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}
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if expiryStr := env.Get(EnvCacheExpiry, strconv.Itoa(cfg.Expiry)); expiryStr != "" {
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expiry, err := strconv.Atoi(expiryStr)
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if err != nil {
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return cfg, config.ErrInvalidCacheExpiryValue(err)
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}
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cfg.Expiry = expiry
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}
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if maxUseStr := env.Get(EnvCacheMaxUse, strconv.Itoa(cfg.MaxUse)); maxUseStr != "" {
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maxUse, err := strconv.Atoi(maxUseStr)
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if err != nil {
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return cfg, config.ErrInvalidCacheMaxUse(err)
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}
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// maxUse should be a valid percentage.
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if maxUse > 0 && maxUse <= 100 {
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cfg.MaxUse = maxUse
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}
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}
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return cfg, nil
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}
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