mirror of
https://github.com/minio/minio.git
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1dc5f2d0af
The approach is that now safe mode is only invoked when we cannot read the config or under some catastrophic situations, but not under situations when config entries are invalid or unreachable. This allows for maximum availability for MinIO and not fail on our users unlike most of our historical releases.
540 lines
16 KiB
Go
540 lines
16 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2016-2019 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 cmd
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import (
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"context"
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"fmt"
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"strings"
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"sync"
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"github.com/minio/minio/cmd/config"
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"github.com/minio/minio/cmd/config/cache"
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"github.com/minio/minio/cmd/config/compress"
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"github.com/minio/minio/cmd/config/etcd"
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xetcd "github.com/minio/minio/cmd/config/etcd"
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"github.com/minio/minio/cmd/config/etcd/dns"
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xldap "github.com/minio/minio/cmd/config/identity/ldap"
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"github.com/minio/minio/cmd/config/identity/openid"
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"github.com/minio/minio/cmd/config/notify"
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"github.com/minio/minio/cmd/config/policy/opa"
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"github.com/minio/minio/cmd/config/storageclass"
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"github.com/minio/minio/cmd/crypto"
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xhttp "github.com/minio/minio/cmd/http"
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"github.com/minio/minio/cmd/logger"
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"github.com/minio/minio/cmd/logger/target/http"
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"github.com/minio/minio/pkg/env"
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)
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func initHelp() {
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var kvs = map[string]config.KVS{
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config.EtcdSubSys: etcd.DefaultKVS,
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config.CacheSubSys: cache.DefaultKVS,
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config.CompressionSubSys: compress.DefaultKVS,
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config.IdentityLDAPSubSys: xldap.DefaultKVS,
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config.IdentityOpenIDSubSys: openid.DefaultKVS,
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config.PolicyOPASubSys: opa.DefaultKVS,
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config.RegionSubSys: config.DefaultRegionKVS,
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config.CredentialsSubSys: config.DefaultCredentialKVS,
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config.KmsVaultSubSys: crypto.DefaultVaultKVS,
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config.KmsKesSubSys: crypto.DefaultKesKVS,
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config.LoggerWebhookSubSys: logger.DefaultKVS,
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config.AuditWebhookSubSys: logger.DefaultAuditKVS,
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}
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for k, v := range notify.DefaultNotificationKVS {
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kvs[k] = v
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}
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if globalIsXL {
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kvs[config.StorageClassSubSys] = storageclass.DefaultKVS
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}
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config.RegisterDefaultKVS(kvs)
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// Captures help for each sub-system
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var helpSubSys = config.HelpKVS{
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config.HelpKV{
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Key: config.RegionSubSys,
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Description: "label the location of the server",
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},
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config.HelpKV{
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Key: config.CacheSubSys,
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Description: "add caching storage tier",
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},
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config.HelpKV{
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Key: config.CompressionSubSys,
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Description: "enable server side compression of objects",
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},
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config.HelpKV{
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Key: config.EtcdSubSys,
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Description: "federate multiple clusters for IAM and Bucket DNS",
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},
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config.HelpKV{
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Key: config.IdentityOpenIDSubSys,
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Description: "enable OpenID SSO support",
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},
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config.HelpKV{
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Key: config.IdentityLDAPSubSys,
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Description: "enable LDAP SSO support",
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},
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config.HelpKV{
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Key: config.PolicyOPASubSys,
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Description: "enable external OPA for policy enforcement",
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},
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config.HelpKV{
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Key: config.KmsVaultSubSys,
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Description: "enable external HashiCorp Vault key management service",
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},
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config.HelpKV{
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Key: config.KmsKesSubSys,
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Description: "enable external MinIO key encryption service",
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},
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config.HelpKV{
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Key: config.LoggerWebhookSubSys,
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Description: "send server logs to webhook endpoints",
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MultipleTargets: true,
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},
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config.HelpKV{
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Key: config.AuditWebhookSubSys,
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Description: "send audit logs to webhook endpoints",
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MultipleTargets: true,
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},
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config.HelpKV{
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Key: config.NotifyWebhookSubSys,
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Description: "publish bucket notifications to webhook endpoints",
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MultipleTargets: true,
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},
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config.HelpKV{
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Key: config.NotifyAMQPSubSys,
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Description: "publish bucket notifications to AMQP endpoints",
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MultipleTargets: true,
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},
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config.HelpKV{
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Key: config.NotifyKafkaSubSys,
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Description: "publish bucket notifications to Kafka endpoints",
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MultipleTargets: true,
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},
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config.HelpKV{
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Key: config.NotifyMQTTSubSys,
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Description: "publish bucket notifications to MQTT endpoints",
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MultipleTargets: true,
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},
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config.HelpKV{
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Key: config.NotifyNATSSubSys,
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Description: "publish bucket notifications to NATS endpoints",
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MultipleTargets: true,
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},
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config.HelpKV{
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Key: config.NotifyNSQSubSys,
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Description: "publish bucket notifications to NSQ endpoints",
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MultipleTargets: true,
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},
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config.HelpKV{
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Key: config.NotifyMySQLSubSys,
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Description: "publish bucket notifications to MySQL databases",
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MultipleTargets: true,
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},
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config.HelpKV{
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Key: config.NotifyPostgresSubSys,
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Description: "publish bucket notifications to Postgres databases",
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MultipleTargets: true,
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},
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config.HelpKV{
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Key: config.NotifyESSubSys,
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Description: "publish bucket notifications to Elasticsearch endpoints",
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MultipleTargets: true,
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},
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config.HelpKV{
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Key: config.NotifyRedisSubSys,
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Description: "publish bucket notifications to Redis datastores",
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MultipleTargets: true,
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},
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}
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if globalIsXL {
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helpSubSys = append(helpSubSys, config.HelpKV{})
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copy(helpSubSys[2:], helpSubSys[1:])
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helpSubSys[1] = config.HelpKV{
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Key: config.StorageClassSubSys,
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Description: "define object level redundancy",
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}
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}
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var helpMap = map[string]config.HelpKVS{
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"": helpSubSys, // Help for all sub-systems.
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config.RegionSubSys: config.RegionHelp,
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config.StorageClassSubSys: storageclass.Help,
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config.EtcdSubSys: etcd.Help,
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config.CacheSubSys: cache.Help,
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config.CompressionSubSys: compress.Help,
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config.IdentityOpenIDSubSys: openid.Help,
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config.IdentityLDAPSubSys: xldap.Help,
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config.PolicyOPASubSys: opa.Help,
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config.KmsVaultSubSys: crypto.HelpVault,
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config.KmsKesSubSys: crypto.HelpKes,
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config.LoggerWebhookSubSys: logger.Help,
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config.AuditWebhookSubSys: logger.HelpAudit,
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config.NotifyAMQPSubSys: notify.HelpAMQP,
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config.NotifyKafkaSubSys: notify.HelpKafka,
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config.NotifyMQTTSubSys: notify.HelpMQTT,
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config.NotifyNATSSubSys: notify.HelpNATS,
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config.NotifyNSQSubSys: notify.HelpNSQ,
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config.NotifyMySQLSubSys: notify.HelpMySQL,
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config.NotifyPostgresSubSys: notify.HelpPostgres,
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config.NotifyRedisSubSys: notify.HelpRedis,
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config.NotifyWebhookSubSys: notify.HelpWebhook,
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config.NotifyESSubSys: notify.HelpES,
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}
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config.RegisterHelpSubSys(helpMap)
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}
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var (
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// globalServerConfig server config.
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globalServerConfig config.Config
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globalServerConfigMu sync.RWMutex
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)
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func validateConfig(s config.Config) error {
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// Disable merging env values with config for validation.
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env.SetEnvOff()
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// Enable env values to validate KMS.
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defer env.SetEnvOn()
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if _, err := config.LookupCreds(s[config.CredentialsSubSys][config.Default]); err != nil {
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return err
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}
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if _, err := config.LookupRegion(s[config.RegionSubSys][config.Default]); err != nil {
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return err
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}
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if globalIsXL {
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if _, err := storageclass.LookupConfig(s[config.StorageClassSubSys][config.Default],
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globalXLSetDriveCount); err != nil {
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return err
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}
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}
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if _, err := cache.LookupConfig(s[config.CacheSubSys][config.Default]); err != nil {
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return err
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}
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if _, err := compress.LookupConfig(s[config.CompressionSubSys][config.Default]); err != nil {
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return err
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}
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{
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etcdCfg, err := etcd.LookupConfig(s[config.EtcdSubSys][config.Default], globalRootCAs)
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if err != nil {
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return err
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}
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if etcdCfg.Enabled {
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etcdClnt, err := etcd.New(etcdCfg)
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if err != nil {
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return err
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}
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etcdClnt.Close()
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}
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}
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{
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kmsCfg, err := crypto.LookupConfig(s, globalCertsCADir.Get())
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if err != nil {
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return err
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}
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// Set env to enable master key validation.
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// this is needed only for KMS.
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env.SetEnvOn()
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if _, err = crypto.NewKMS(kmsCfg); err != nil {
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return err
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}
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// Disable merging env values for the rest.
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env.SetEnvOff()
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}
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if _, err := openid.LookupConfig(s[config.IdentityOpenIDSubSys][config.Default],
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NewCustomHTTPTransport(), xhttp.DrainBody); err != nil {
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return err
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}
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if _, err := xldap.Lookup(s[config.IdentityLDAPSubSys][config.Default],
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globalRootCAs); err != nil {
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return err
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}
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if _, err := opa.LookupConfig(s[config.PolicyOPASubSys][config.Default],
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NewCustomHTTPTransport(), xhttp.DrainBody); err != nil {
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return err
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}
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if _, err := logger.LookupConfig(s); err != nil {
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return err
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}
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return notify.TestNotificationTargets(s, GlobalServiceDoneCh, NewCustomHTTPTransport(),
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globalNotificationSys.ConfiguredTargetIDs())
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}
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func lookupConfigs(s config.Config) {
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ctx := context.Background()
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var err error
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if !globalActiveCred.IsValid() {
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// Env doesn't seem to be set, we fallback to lookup creds from the config.
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globalActiveCred, err = config.LookupCreds(s[config.CredentialsSubSys][config.Default])
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Invalid credentials configuration: %w", err))
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}
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}
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etcdCfg, err := xetcd.LookupConfig(s[config.EtcdSubSys][config.Default], globalRootCAs)
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to initialize etcd config: %w", err))
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}
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if etcdCfg.Enabled {
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globalEtcdClient, err = xetcd.New(etcdCfg)
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to initialize etcd config: %w", err))
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}
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}
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if len(globalDomainNames) != 0 && !globalDomainIPs.IsEmpty() && globalEtcdClient != nil {
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globalDNSConfig, err = dns.NewCoreDNS(etcdCfg.Config,
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dns.DomainNames(globalDomainNames),
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dns.DomainIPs(globalDomainIPs),
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dns.DomainPort(globalMinioPort),
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dns.CoreDNSPath(etcdCfg.CoreDNSPath),
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)
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to initialize DNS config for %s: %w",
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globalDomainNames, err))
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}
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}
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globalServerRegion, err = config.LookupRegion(s[config.RegionSubSys][config.Default])
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Invalid region configuration: %w", err))
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}
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if globalIsXL {
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globalStorageClass, err = storageclass.LookupConfig(s[config.StorageClassSubSys][config.Default],
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globalXLSetDriveCount)
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to initialize storage class config: %w", err))
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}
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}
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globalCacheConfig, err = cache.LookupConfig(s[config.CacheSubSys][config.Default])
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to setup cache: %w", err))
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}
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if globalCacheConfig.Enabled {
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if cacheEncKey := env.Get(cache.EnvCacheEncryptionMasterKey, ""); cacheEncKey != "" {
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globalCacheKMS, err = crypto.ParseMasterKey(cacheEncKey)
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to setup encryption cache: %w", err))
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}
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}
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}
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kmsCfg, err := crypto.LookupConfig(s, globalCertsCADir.Get())
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to setup KMS config: %w", err))
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}
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GlobalKMS, err = crypto.NewKMS(kmsCfg)
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to setup KMS with current KMS config: %w", err))
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}
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// Enable auto-encryption if enabled
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globalAutoEncryption = kmsCfg.AutoEncryption
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globalCompressConfig, err = compress.LookupConfig(s[config.CompressionSubSys][config.Default])
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to setup Compression: %w", err))
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}
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globalOpenIDConfig, err = openid.LookupConfig(s[config.IdentityOpenIDSubSys][config.Default],
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NewCustomHTTPTransport(), xhttp.DrainBody)
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to initialize OpenID: %w", err))
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}
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opaCfg, err := opa.LookupConfig(s[config.PolicyOPASubSys][config.Default],
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NewCustomHTTPTransport(), xhttp.DrainBody)
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to initialize OPA: %w", err))
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}
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globalOpenIDValidators = getOpenIDValidators(globalOpenIDConfig)
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globalPolicyOPA = opa.New(opaCfg)
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globalLDAPConfig, err = xldap.Lookup(s[config.IdentityLDAPSubSys][config.Default],
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globalRootCAs)
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to parse LDAP configuration: %w", err))
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}
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// Load logger targets based on user's configuration
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loggerUserAgent := getUserAgent(getMinioMode())
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loggerCfg, err := logger.LookupConfig(s)
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if err != nil {
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logger.LogIf(ctx, fmt.Errorf("Unable to initialize logger: %w", err))
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}
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for _, l := range loggerCfg.HTTP {
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if l.Enabled {
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// Enable http logging
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logger.AddTarget(http.New(l.Endpoint, loggerUserAgent, string(logger.All), NewCustomHTTPTransport()))
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}
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}
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for _, l := range loggerCfg.Audit {
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if l.Enabled {
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// Enable http audit logging
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logger.AddAuditTarget(http.New(l.Endpoint, loggerUserAgent, string(logger.All), NewCustomHTTPTransport()))
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}
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}
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}
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// Help - return sub-system level help
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type Help struct {
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SubSys string `json:"subSys"`
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Description string `json:"description"`
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MultipleTargets bool `json:"multipleTargets"`
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KeysHelp config.HelpKVS `json:"keysHelp"`
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}
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// GetHelp - returns help for sub-sys, a key for a sub-system or all the help.
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func GetHelp(subSys, key string, envOnly bool) (Help, error) {
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if len(subSys) == 0 {
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return Help{KeysHelp: config.HelpSubSysMap[subSys]}, nil
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}
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subSystemValue := strings.SplitN(subSys, config.SubSystemSeparator, 2)
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if len(subSystemValue) == 0 {
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return Help{}, config.Errorf("invalid number of arguments %s", subSys)
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}
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subSys = subSystemValue[0]
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subSysHelp, ok := config.HelpSubSysMap[""].Lookup(subSys)
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if !ok {
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return Help{}, config.Errorf("unknown sub-system %s", subSys)
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}
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h, ok := config.HelpSubSysMap[subSys]
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if !ok {
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return Help{}, config.Errorf("unknown sub-system %s", subSys)
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}
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if key != "" {
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value, ok := h.Lookup(key)
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if !ok {
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return Help{}, config.Errorf("unknown key %s for sub-system %s",
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key, subSys)
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}
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h = config.HelpKVS{value}
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}
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envHelp := config.HelpKVS{}
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if envOnly {
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for _, hkv := range h {
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envK := config.EnvPrefix + strings.Join([]string{
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strings.ToTitle(subSys), strings.ToTitle(hkv.Key),
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}, config.EnvWordDelimiter)
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envHelp = append(envHelp, config.HelpKV{
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Key: envK,
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Description: hkv.Description,
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Optional: hkv.Optional,
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Type: hkv.Type,
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})
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}
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h = envHelp
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}
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return Help{
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SubSys: subSys,
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Description: subSysHelp.Description,
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MultipleTargets: subSysHelp.MultipleTargets,
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KeysHelp: h,
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}, nil
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}
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func newServerConfig() config.Config {
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return config.New()
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}
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// newSrvConfig - initialize a new server config, saves env parameters if
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// found, otherwise use default parameters
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func newSrvConfig(objAPI ObjectLayer) error {
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// Initialize server config.
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srvCfg := newServerConfig()
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// Override any values from ENVs.
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lookupConfigs(srvCfg)
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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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// Save config into file.
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return saveServerConfig(context.Background(), objAPI, globalServerConfig)
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}
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func getValidConfig(objAPI ObjectLayer) (config.Config, error) {
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return readServerConfig(context.Background(), objAPI)
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}
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|
|
// 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 err
|
|
}
|
|
|
|
// Override any values from ENVs.
|
|
lookupConfigs(srvCfg)
|
|
|
|
// hold the mutex lock before a new config is assigned.
|
|
globalServerConfigMu.Lock()
|
|
globalServerConfig = srvCfg
|
|
globalServerConfigMu.Unlock()
|
|
|
|
return nil
|
|
}
|
|
|
|
// getOpenIDValidators - returns ValidatorList which contains
|
|
// enabled providers in server config.
|
|
// A new authentication provider is added like below
|
|
// * Add a new provider in pkg/iam/openid package.
|
|
func getOpenIDValidators(cfg openid.Config) *openid.Validators {
|
|
validators := openid.NewValidators()
|
|
|
|
if cfg.JWKS.URL != nil {
|
|
validators.Add(openid.NewJWT(cfg))
|
|
}
|
|
|
|
return validators
|
|
}
|