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621 lines
16 KiB
621 lines
16 KiB
/*
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* Minio Cloud Storage, (C) 2016, 2017, 2018 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 cmd
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import (
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"context"
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"errors"
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"fmt"
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"reflect"
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"sync"
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"github.com/miekg/dns"
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"github.com/minio/minio/cmd/crypto"
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"github.com/minio/minio/cmd/logger"
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"github.com/minio/minio/pkg/auth"
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"github.com/minio/minio/pkg/event"
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"github.com/minio/minio/pkg/event/target"
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)
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// Steps to move from version N to version N+1
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// 1. Add new struct serverConfigVN+1 in config-versions.go
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// 2. Set serverConfigVersion to "N+1"
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// 3. Set serverConfig to serverConfigVN+1
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// 4. Add new migration function (ex. func migrateVNToVN+1()) in config-migrate.go
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// 5. Call migrateVNToVN+1() from migrateConfig() in config-migrate.go
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// 6. Make changes in config-current_test.go for any test change
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// Config version
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const serverConfigVersion = "28"
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type serverConfig = serverConfigV28
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var (
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// globalServerConfig server config.
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globalServerConfig *serverConfig
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globalServerConfigMu sync.RWMutex
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)
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// GetVersion get current config version.
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func (s *serverConfig) GetVersion() string {
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return s.Version
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}
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// SetRegion set a new region.
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func (s *serverConfig) SetRegion(region string) {
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// Save new region.
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s.Region = region
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}
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// GetRegion get current region.
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func (s *serverConfig) GetRegion() string {
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if globalIsEnvRegion {
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return globalServerRegion
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}
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if s == nil {
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return ""
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}
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return s.Region
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}
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// SetCredential sets new credential and returns the previous credential.
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func (s *serverConfig) SetCredential(creds auth.Credentials) (prevCred auth.Credentials) {
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if creds.IsValid() && globalActiveCred.IsValid() {
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globalActiveCred = creds
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}
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// Save previous credential.
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prevCred = s.Credential
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// Set updated credential.
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s.Credential = creds
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// Return previous credential.
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return prevCred
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}
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// GetCredentials get current credentials.
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func (s *serverConfig) GetCredential() auth.Credentials {
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if globalActiveCred.IsValid() {
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return globalActiveCred
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}
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return s.Credential
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}
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// SetBrowser set if browser is enabled.
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func (s *serverConfig) SetBrowser(b bool) {
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// Set the new value.
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s.Browser = BoolFlag(b)
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}
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// SetWorm set if worm is enabled.
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func (s *serverConfig) SetWorm(b bool) {
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// Set the new value.
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s.Worm = BoolFlag(b)
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}
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func (s *serverConfig) SetStorageClass(standardClass, rrsClass storageClass) {
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s.StorageClass.Standard = standardClass
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s.StorageClass.RRS = rrsClass
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}
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// GetStorageClass reads storage class fields from current config.
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// It returns the standard and reduced redundancy storage class struct
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func (s *serverConfig) GetStorageClass() (storageClass, storageClass) {
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if globalIsStorageClass {
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return globalStandardStorageClass, globalRRStorageClass
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}
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if s == nil {
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return storageClass{}, storageClass{}
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}
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return s.StorageClass.Standard, s.StorageClass.RRS
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}
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// GetBrowser get current credentials.
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func (s *serverConfig) GetBrowser() bool {
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if globalIsEnvWORM {
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return globalWORMEnabled
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}
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if s == nil {
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return true
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}
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return bool(s.Browser)
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}
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// GetWorm get current credentials.
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func (s *serverConfig) GetWorm() bool {
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if globalIsEnvBrowser {
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return globalIsBrowserEnabled
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}
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if s == nil {
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return false
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}
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return bool(s.Worm)
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}
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// SetCacheConfig sets the current cache config
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func (s *serverConfig) SetCacheConfig(drives, exclude []string, expiry int, maxuse int) {
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s.Cache.Drives = drives
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s.Cache.Exclude = exclude
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s.Cache.Expiry = expiry
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s.Cache.MaxUse = maxuse
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}
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// GetCacheConfig gets the current cache config
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func (s *serverConfig) GetCacheConfig() CacheConfig {
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if globalIsDiskCacheEnabled {
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return CacheConfig{
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Drives: globalCacheDrives,
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Exclude: globalCacheExcludes,
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Expiry: globalCacheExpiry,
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MaxUse: globalCacheMaxUse,
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}
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}
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if s == nil {
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return CacheConfig{}
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}
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return s.Cache
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}
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func (s *serverConfig) Validate() error {
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if s == nil {
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return nil
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}
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if s.Version != serverConfigVersion {
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return fmt.Errorf("configuration version mismatch. Expected: ‘%s’, Got: ‘%s’", serverConfigVersion, s.Version)
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}
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// Validate credential fields only when
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// they are not set via the environment
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// Error out if global is env credential is not set and config has invalid credential
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if !globalIsEnvCreds && !s.Credential.IsValid() {
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return errors.New("invalid credential in config file")
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}
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// Region: nothing to validate
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// Browser, Worm, Cache and StorageClass values are already validated during json unmarshal
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if s.Domain != "" {
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if _, ok := dns.IsDomainName(s.Domain); !ok {
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return errors.New("invalid domain name")
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}
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}
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for _, v := range s.Notify.AMQP {
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if err := v.Validate(); err != nil {
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return fmt.Errorf("amqp: %s", err.Error())
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}
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}
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for _, v := range s.Notify.Elasticsearch {
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if err := v.Validate(); err != nil {
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return fmt.Errorf("elasticsearch: %s", err.Error())
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}
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}
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for _, v := range s.Notify.Kafka {
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if err := v.Validate(); err != nil {
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return fmt.Errorf("kafka: %s", err.Error())
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}
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}
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for _, v := range s.Notify.MQTT {
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if err := v.Validate(); err != nil {
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return fmt.Errorf("mqtt: %s", err.Error())
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}
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}
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for _, v := range s.Notify.MySQL {
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if err := v.Validate(); err != nil {
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return fmt.Errorf("mysql: %s", err.Error())
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}
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}
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for _, v := range s.Notify.NATS {
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if err := v.Validate(); err != nil {
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return fmt.Errorf("nats: %s", err.Error())
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}
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}
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for _, v := range s.Notify.PostgreSQL {
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if err := v.Validate(); err != nil {
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return fmt.Errorf("postgreSQL: %s", err.Error())
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}
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}
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for _, v := range s.Notify.Redis {
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if err := v.Validate(); err != nil {
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return fmt.Errorf("redis: %s", err.Error())
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}
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}
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for _, v := range s.Notify.Webhook {
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if err := v.Validate(); err != nil {
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return fmt.Errorf("webhook: %s", err.Error())
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}
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}
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return nil
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}
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func (s *serverConfig) loadFromEnvs() {
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// If env is set override the credentials from config file.
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if globalIsEnvCreds {
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s.SetCredential(globalActiveCred)
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}
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if globalIsEnvBrowser {
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s.SetBrowser(globalIsBrowserEnabled)
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}
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if globalIsEnvWORM {
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s.SetWorm(globalWORMEnabled)
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}
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if globalIsEnvRegion {
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s.SetRegion(globalServerRegion)
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}
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if globalIsEnvDomainName {
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s.Domain = globalDomainName
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}
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if globalIsStorageClass {
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s.SetStorageClass(globalStandardStorageClass, globalRRStorageClass)
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}
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if globalIsDiskCacheEnabled {
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s.SetCacheConfig(globalCacheDrives, globalCacheExcludes, globalCacheExpiry, globalCacheMaxUse)
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}
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if globalKMS != nil {
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s.KMS = globalKMSConfig
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}
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}
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// Returns the string describing a difference with the given
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// configuration object. If the given configuration object is
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// identical, an empty string is returned.
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func (s *serverConfig) ConfigDiff(t *serverConfig) string {
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switch {
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case t == nil:
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return "Given configuration is empty"
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case s.Credential != t.Credential:
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return "Credential configuration differs"
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case s.Region != t.Region:
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return "Region configuration differs"
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case s.Browser != t.Browser:
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return "Browser configuration differs"
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case s.Domain != t.Domain:
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return "Domain configuration differs"
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case s.StorageClass != t.StorageClass:
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return "StorageClass configuration differs"
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case !reflect.DeepEqual(s.Cache, t.Cache):
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return "Cache configuration differs"
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case !reflect.DeepEqual(s.Notify.AMQP, t.Notify.AMQP):
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return "AMQP Notification configuration differs"
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case !reflect.DeepEqual(s.Notify.NATS, t.Notify.NATS):
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return "NATS Notification configuration differs"
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case !reflect.DeepEqual(s.Notify.Elasticsearch, t.Notify.Elasticsearch):
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return "ElasticSearch Notification configuration differs"
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case !reflect.DeepEqual(s.Notify.Redis, t.Notify.Redis):
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return "Redis Notification configuration differs"
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case !reflect.DeepEqual(s.Notify.PostgreSQL, t.Notify.PostgreSQL):
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return "PostgreSQL Notification configuration differs"
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case !reflect.DeepEqual(s.Notify.Kafka, t.Notify.Kafka):
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return "Kafka Notification configuration differs"
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case !reflect.DeepEqual(s.Notify.Webhook, t.Notify.Webhook):
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return "Webhook Notification configuration differs"
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case !reflect.DeepEqual(s.Notify.MySQL, t.Notify.MySQL):
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return "MySQL Notification configuration differs"
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case !reflect.DeepEqual(s.Notify.MQTT, t.Notify.MQTT):
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return "MQTT Notification configuration differs"
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case !reflect.DeepEqual(s.Logger, t.Logger):
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return "Logger configuration differs"
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case !reflect.DeepEqual(s.KMS, t.KMS):
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return "KMS configuration differs"
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case reflect.DeepEqual(s, t):
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return ""
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default:
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// This case will not happen unless this comparison
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// function has become stale.
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return "Configuration differs"
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}
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}
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func newServerConfig() *serverConfig {
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cred, err := auth.GetNewCredentials()
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logger.FatalIf(err, "")
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srvCfg := &serverConfig{
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Version: serverConfigVersion,
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Credential: cred,
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Region: globalMinioDefaultRegion,
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Browser: true,
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StorageClass: storageClassConfig{
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Standard: storageClass{},
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RRS: storageClass{},
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},
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Cache: CacheConfig{
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Drives: []string{},
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Exclude: []string{},
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Expiry: globalCacheExpiry,
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MaxUse: globalCacheMaxUse,
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},
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KMS: crypto.KMSConfig{},
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Notify: notifier{},
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}
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// Make sure to initialize notification configs.
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srvCfg.Notify.AMQP = make(map[string]target.AMQPArgs)
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srvCfg.Notify.AMQP["1"] = target.AMQPArgs{}
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srvCfg.Notify.MQTT = make(map[string]target.MQTTArgs)
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srvCfg.Notify.MQTT["1"] = target.MQTTArgs{}
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srvCfg.Notify.Elasticsearch = make(map[string]target.ElasticsearchArgs)
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srvCfg.Notify.Elasticsearch["1"] = target.ElasticsearchArgs{}
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srvCfg.Notify.Redis = make(map[string]target.RedisArgs)
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srvCfg.Notify.Redis["1"] = target.RedisArgs{}
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srvCfg.Notify.NATS = make(map[string]target.NATSArgs)
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srvCfg.Notify.NATS["1"] = target.NATSArgs{}
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srvCfg.Notify.PostgreSQL = make(map[string]target.PostgreSQLArgs)
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srvCfg.Notify.PostgreSQL["1"] = target.PostgreSQLArgs{}
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srvCfg.Notify.MySQL = make(map[string]target.MySQLArgs)
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srvCfg.Notify.MySQL["1"] = target.MySQLArgs{}
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srvCfg.Notify.Kafka = make(map[string]target.KafkaArgs)
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srvCfg.Notify.Kafka["1"] = target.KafkaArgs{}
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srvCfg.Notify.Webhook = make(map[string]target.WebhookArgs)
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srvCfg.Notify.Webhook["1"] = target.WebhookArgs{}
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srvCfg.Cache.Drives = make([]string, 0)
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srvCfg.Cache.Exclude = make([]string, 0)
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srvCfg.Cache.Expiry = globalCacheExpiry
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srvCfg.Cache.MaxUse = globalCacheMaxUse
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// Console logging is on by default
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srvCfg.Logger.Console.Enabled = true
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// Create an example of HTTP logger
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srvCfg.Logger.HTTP = make(map[string]loggerHTTP)
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srvCfg.Logger.HTTP["target1"] = loggerHTTP{Endpoint: "https://username:password@example.com/api"}
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return srvCfg
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}
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func (s *serverConfig) loadToCachedConfigs() {
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if !globalIsEnvCreds {
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globalActiveCred = s.GetCredential()
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}
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if !globalIsEnvBrowser {
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globalIsBrowserEnabled = s.GetBrowser()
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}
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if !globalIsEnvWORM {
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globalWORMEnabled = s.GetWorm()
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}
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if !globalIsEnvRegion {
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globalServerRegion = s.GetRegion()
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}
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if !globalIsEnvDomainName {
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globalDomainName = s.Domain
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}
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if !globalIsStorageClass {
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globalStandardStorageClass, globalRRStorageClass = s.GetStorageClass()
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}
|
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if !globalIsDiskCacheEnabled {
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cacheConf := s.GetCacheConfig()
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globalCacheDrives = cacheConf.Drives
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globalCacheExcludes = cacheConf.Exclude
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globalCacheExpiry = cacheConf.Expiry
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globalCacheMaxUse = cacheConf.MaxUse
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}
|
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if globalKMS == nil {
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globalKMSConfig = s.KMS
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if kms, err := crypto.NewVault(globalKMSConfig); err == nil {
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globalKMS = kms
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globalKMSKeyID = globalKMSConfig.Vault.Key.Name
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}
|
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}
|
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}
|
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|
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// newConfig - initialize a new server config, saves env parameters if
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// found, otherwise use default parameters
|
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func newConfig(objAPI ObjectLayer) error {
|
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// Initialize server config.
|
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srvCfg := newServerConfig()
|
|
|
|
// Override any values from ENVs.
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srvCfg.loadFromEnvs()
|
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|
|
// Load values to cached global values.
|
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srvCfg.loadToCachedConfigs()
|
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|
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// hold the mutex lock before a new config is assigned.
|
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globalServerConfigMu.Lock()
|
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globalServerConfig = srvCfg
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globalServerConfigMu.Unlock()
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|
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// Save config into file.
|
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return saveServerConfig(objAPI, globalServerConfig)
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}
|
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|
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// getValidConfig - returns valid server configuration
|
|
func getValidConfig(objAPI ObjectLayer) (*serverConfig, error) {
|
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srvCfg, err := readServerConfig(context.Background(), objAPI)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return srvCfg, srvCfg.Validate()
|
|
}
|
|
|
|
// loadConfig - loads a new config from disk, overrides params from env
|
|
// if found and valid
|
|
func loadConfig(objAPI ObjectLayer) error {
|
|
srvCfg, err := getValidConfig(objAPI)
|
|
if err != nil {
|
|
return uiErrInvalidConfig(nil).Msg(err.Error())
|
|
}
|
|
|
|
// Override any values from ENVs.
|
|
srvCfg.loadFromEnvs()
|
|
|
|
// Load values to cached global values.
|
|
srvCfg.loadToCachedConfigs()
|
|
|
|
// hold the mutex lock before a new config is assigned.
|
|
globalServerConfigMu.Lock()
|
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globalServerConfig = srvCfg
|
|
globalServerConfigMu.Unlock()
|
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|
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return nil
|
|
}
|
|
|
|
// getNotificationTargets - returns TargetList which contains enabled targets in serverConfig.
|
|
// A new notification target is added like below
|
|
// * Add a new target in pkg/event/target package.
|
|
// * Add newly added target configuration to serverConfig.Notify.<TARGET_NAME>.
|
|
// * Handle the configuration in this function to create/add into TargetList.
|
|
func getNotificationTargets(config *serverConfig) *event.TargetList {
|
|
targetList := event.NewTargetList()
|
|
if config == nil {
|
|
return targetList
|
|
}
|
|
for id, args := range config.Notify.AMQP {
|
|
if args.Enable {
|
|
newTarget, err := target.NewAMQPTarget(id, args)
|
|
if err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
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|
}
|
|
if err = targetList.Add(newTarget); err != nil {
|
|
logger.LogIf(context.Background(), err)
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continue
|
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}
|
|
}
|
|
}
|
|
|
|
for id, args := range config.Notify.Elasticsearch {
|
|
if args.Enable {
|
|
newTarget, err := target.NewElasticsearchTarget(id, args)
|
|
if err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
|
|
}
|
|
if err = targetList.Add(newTarget); err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
for id, args := range config.Notify.Kafka {
|
|
if args.Enable {
|
|
newTarget, err := target.NewKafkaTarget(id, args)
|
|
if err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
if err = targetList.Add(newTarget); err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
|
|
for id, args := range config.Notify.MQTT {
|
|
if args.Enable {
|
|
newTarget, err := target.NewMQTTTarget(id, args)
|
|
if err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
if err = targetList.Add(newTarget); err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
|
|
for id, args := range config.Notify.MySQL {
|
|
if args.Enable {
|
|
newTarget, err := target.NewMySQLTarget(id, args)
|
|
if err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
if err = targetList.Add(newTarget); err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
|
|
for id, args := range config.Notify.NATS {
|
|
if args.Enable {
|
|
newTarget, err := target.NewNATSTarget(id, args)
|
|
if err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
if err = targetList.Add(newTarget); err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
|
|
for id, args := range config.Notify.PostgreSQL {
|
|
if args.Enable {
|
|
newTarget, err := target.NewPostgreSQLTarget(id, args)
|
|
if err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
if err = targetList.Add(newTarget); err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
|
|
for id, args := range config.Notify.Redis {
|
|
if args.Enable {
|
|
newTarget, err := target.NewRedisTarget(id, args)
|
|
if err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
if err = targetList.Add(newTarget); err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
|
|
for id, args := range config.Notify.Webhook {
|
|
if args.Enable {
|
|
newTarget := target.NewWebhookTarget(id, args)
|
|
if err := targetList.Add(newTarget); err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
|
|
return targetList
|
|
}
|
|
|