minio/cmd/config-current.go
Shireesh Anjal d29df6714a
Introduce new config subnet api_key (#13793)
The earlier approach of using a license token for 
communicating with SUBNET is being replaced 
with a simpler mechanism of API keys. Unlike the 
license which is a JWT token, these API keys will 
be simple UUID tokens and don't have any embedded 
information in them. SUBNET would generate the 
API key on cluster registration, and then it would 
be saved in this config, to be used for subsequent 
communication with SUBNET.
2021-12-03 09:32:11 -08:00

797 lines
25 KiB
Go

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"context"
"errors"
"fmt"
"strings"
"sync"
"github.com/minio/madmin-go"
"github.com/minio/minio/internal/config"
"github.com/minio/minio/internal/config/api"
"github.com/minio/minio/internal/config/cache"
"github.com/minio/minio/internal/config/compress"
"github.com/minio/minio/internal/config/dns"
"github.com/minio/minio/internal/config/etcd"
"github.com/minio/minio/internal/config/heal"
xldap "github.com/minio/minio/internal/config/identity/ldap"
"github.com/minio/minio/internal/config/identity/openid"
xtls "github.com/minio/minio/internal/config/identity/tls"
"github.com/minio/minio/internal/config/notify"
"github.com/minio/minio/internal/config/policy/opa"
"github.com/minio/minio/internal/config/scanner"
"github.com/minio/minio/internal/config/storageclass"
"github.com/minio/minio/internal/config/subnet"
"github.com/minio/minio/internal/crypto"
xhttp "github.com/minio/minio/internal/http"
"github.com/minio/minio/internal/kms"
"github.com/minio/minio/internal/logger"
"github.com/minio/minio/internal/logger/target/http"
"github.com/minio/minio/internal/logger/target/kafka"
"github.com/minio/pkg/env"
)
func initHelp() {
var kvs = map[string]config.KVS{
config.EtcdSubSys: etcd.DefaultKVS,
config.CacheSubSys: cache.DefaultKVS,
config.CompressionSubSys: compress.DefaultKVS,
config.IdentityLDAPSubSys: xldap.DefaultKVS,
config.IdentityOpenIDSubSys: openid.DefaultKVS,
config.IdentityTLSSubSys: xtls.DefaultKVS,
config.PolicyOPASubSys: opa.DefaultKVS,
config.SiteSubSys: config.DefaultSiteKVS,
config.RegionSubSys: config.DefaultRegionKVS,
config.APISubSys: api.DefaultKVS,
config.CredentialsSubSys: config.DefaultCredentialKVS,
config.LoggerWebhookSubSys: logger.DefaultKVS,
config.AuditWebhookSubSys: logger.DefaultAuditWebhookKVS,
config.AuditKafkaSubSys: logger.DefaultAuditKafkaKVS,
config.HealSubSys: heal.DefaultKVS,
config.ScannerSubSys: scanner.DefaultKVS,
config.SubnetSubSys: subnet.DefaultKVS,
}
for k, v := range notify.DefaultNotificationKVS {
kvs[k] = v
}
if globalIsErasure {
kvs[config.StorageClassSubSys] = storageclass.DefaultKVS
}
config.RegisterDefaultKVS(kvs)
// Captures help for each sub-system
var helpSubSys = config.HelpKVS{
config.HelpKV{
Key: config.SiteSubSys,
Description: "label the server and its location",
},
config.HelpKV{
Key: config.CacheSubSys,
Description: "add caching storage tier",
},
config.HelpKV{
Key: config.CompressionSubSys,
Description: "enable server side compression of objects",
},
config.HelpKV{
Key: config.EtcdSubSys,
Description: "federate multiple clusters for IAM and Bucket DNS",
},
config.HelpKV{
Key: config.IdentityOpenIDSubSys,
Description: "enable OpenID SSO support",
},
config.HelpKV{
Key: config.IdentityLDAPSubSys,
Description: "enable LDAP SSO support",
},
config.HelpKV{
Key: config.IdentityTLSSubSys,
Description: "enable X.509 TLS certificate SSO support",
},
config.HelpKV{
Key: config.PolicyOPASubSys,
Description: "[DEPRECATED] enable external OPA for policy enforcement",
},
config.HelpKV{
Key: config.APISubSys,
Description: "manage global HTTP API call specific features, such as throttling, authentication types, etc.",
},
config.HelpKV{
Key: config.HealSubSys,
Description: "manage object healing frequency and bitrot verification checks",
},
config.HelpKV{
Key: config.ScannerSubSys,
Description: "manage namespace scanning for usage calculation, lifecycle, healing and more",
},
config.HelpKV{
Key: config.LoggerWebhookSubSys,
Description: "send server logs to webhook endpoints",
MultipleTargets: true,
},
config.HelpKV{
Key: config.AuditWebhookSubSys,
Description: "send audit logs to webhook endpoints",
MultipleTargets: true,
},
config.HelpKV{
Key: config.AuditKafkaSubSys,
Description: "send audit logs to kafka endpoints",
MultipleTargets: true,
},
config.HelpKV{
Key: config.NotifyWebhookSubSys,
Description: "publish bucket notifications to webhook endpoints",
MultipleTargets: true,
},
config.HelpKV{
Key: config.NotifyAMQPSubSys,
Description: "publish bucket notifications to AMQP endpoints",
MultipleTargets: true,
},
config.HelpKV{
Key: config.NotifyKafkaSubSys,
Description: "publish bucket notifications to Kafka endpoints",
MultipleTargets: true,
},
config.HelpKV{
Key: config.NotifyMQTTSubSys,
Description: "publish bucket notifications to MQTT endpoints",
MultipleTargets: true,
},
config.HelpKV{
Key: config.NotifyNATSSubSys,
Description: "publish bucket notifications to NATS endpoints",
MultipleTargets: true,
},
config.HelpKV{
Key: config.NotifyNSQSubSys,
Description: "publish bucket notifications to NSQ endpoints",
MultipleTargets: true,
},
config.HelpKV{
Key: config.NotifyMySQLSubSys,
Description: "publish bucket notifications to MySQL databases",
MultipleTargets: true,
},
config.HelpKV{
Key: config.NotifyPostgresSubSys,
Description: "publish bucket notifications to Postgres databases",
MultipleTargets: true,
},
config.HelpKV{
Key: config.NotifyESSubSys,
Description: "publish bucket notifications to Elasticsearch endpoints",
MultipleTargets: true,
},
config.HelpKV{
Key: config.NotifyRedisSubSys,
Description: "publish bucket notifications to Redis datastores",
MultipleTargets: true,
},
config.HelpKV{
Key: config.SubnetSubSys,
Type: "string",
Description: "set subnet config for the cluster e.g. api key",
Optional: true,
},
}
if globalIsErasure {
helpSubSys = append(helpSubSys, config.HelpKV{})
copy(helpSubSys[2:], helpSubSys[1:])
helpSubSys[1] = config.HelpKV{
Key: config.StorageClassSubSys,
Description: "define object level redundancy",
}
}
var helpMap = map[string]config.HelpKVS{
"": helpSubSys, // Help for all sub-systems.
config.SiteSubSys: config.SiteHelp,
config.RegionSubSys: config.RegionHelp,
config.APISubSys: api.Help,
config.StorageClassSubSys: storageclass.Help,
config.EtcdSubSys: etcd.Help,
config.CacheSubSys: cache.Help,
config.CompressionSubSys: compress.Help,
config.HealSubSys: heal.Help,
config.ScannerSubSys: scanner.Help,
config.IdentityOpenIDSubSys: openid.Help,
config.IdentityLDAPSubSys: xldap.Help,
config.IdentityTLSSubSys: xtls.Help,
config.PolicyOPASubSys: opa.Help,
config.LoggerWebhookSubSys: logger.Help,
config.AuditWebhookSubSys: logger.HelpWebhook,
config.AuditKafkaSubSys: logger.HelpKafka,
config.NotifyAMQPSubSys: notify.HelpAMQP,
config.NotifyKafkaSubSys: notify.HelpKafka,
config.NotifyMQTTSubSys: notify.HelpMQTT,
config.NotifyNATSSubSys: notify.HelpNATS,
config.NotifyNSQSubSys: notify.HelpNSQ,
config.NotifyMySQLSubSys: notify.HelpMySQL,
config.NotifyPostgresSubSys: notify.HelpPostgres,
config.NotifyRedisSubSys: notify.HelpRedis,
config.NotifyWebhookSubSys: notify.HelpWebhook,
config.NotifyESSubSys: notify.HelpES,
config.SubnetSubSys: subnet.HelpSubnet,
}
config.RegisterHelpSubSys(helpMap)
// save top-level help for deprecated sub-systems in a separate map.
deprecatedHelpKVMap := map[string]config.HelpKV{
config.RegionSubSys: {
Key: config.RegionSubSys,
Description: "[DEPRECATED - use `site` instead] label the location of the server",
},
}
config.RegisterHelpDeprecatedSubSys(deprecatedHelpKVMap)
}
var (
// globalServerConfig server config.
globalServerConfig config.Config
globalServerConfigMu sync.RWMutex
)
func validateConfig(s config.Config) error {
objAPI := newObjectLayerFn()
// We must have a global lock for this so nobody else modifies env while we do.
defer env.LockSetEnv()()
// Disable merging env values with config for validation.
env.SetEnvOff()
// Enable env values to validate KMS.
defer env.SetEnvOn()
if _, err := config.LookupCreds(s[config.CredentialsSubSys][config.Default]); err != nil {
return err
}
if _, err := config.LookupSite(s[config.SiteSubSys][config.Default], s[config.RegionSubSys][config.Default]); err != nil {
return err
}
if _, err := api.LookupConfig(s[config.APISubSys][config.Default]); err != nil {
return err
}
if globalIsErasure {
if objAPI == nil {
return errServerNotInitialized
}
for _, setDriveCount := range objAPI.SetDriveCounts() {
if _, err := storageclass.LookupConfig(s[config.StorageClassSubSys][config.Default], setDriveCount); err != nil {
return err
}
}
}
if _, err := cache.LookupConfig(s[config.CacheSubSys][config.Default]); err != nil {
return err
}
compCfg, err := compress.LookupConfig(s[config.CompressionSubSys][config.Default])
if err != nil {
return err
}
if objAPI != nil {
if compCfg.Enabled && !objAPI.IsCompressionSupported() {
return fmt.Errorf("Backend does not support compression")
}
}
if _, err = heal.LookupConfig(s[config.HealSubSys][config.Default]); err != nil {
return err
}
if _, err = scanner.LookupConfig(s[config.ScannerSubSys][config.Default]); err != nil {
return err
}
{
etcdCfg, err := etcd.LookupConfig(s[config.EtcdSubSys][config.Default], globalRootCAs)
if err != nil {
return err
}
if etcdCfg.Enabled {
etcdClnt, err := etcd.New(etcdCfg)
if err != nil {
return err
}
etcdClnt.Close()
}
}
if _, err := openid.LookupConfig(s[config.IdentityOpenIDSubSys][config.Default],
NewGatewayHTTPTransport(), xhttp.DrainBody, globalSite.Region); err != nil {
return err
}
{
cfg, err := xldap.Lookup(s[config.IdentityLDAPSubSys][config.Default],
globalRootCAs)
if err != nil {
return err
}
if cfg.Enabled {
conn, cerr := cfg.Connect()
if cerr != nil {
return cerr
}
conn.Close()
}
}
{
_, err := xtls.Lookup(s[config.IdentityTLSSubSys][config.Default])
if err != nil {
return err
}
}
if _, err := opa.LookupConfig(s[config.PolicyOPASubSys][config.Default],
NewGatewayHTTPTransport(), xhttp.DrainBody); err != nil {
return err
}
if _, err := logger.LookupConfig(s); err != nil {
return err
}
return notify.TestNotificationTargets(GlobalContext, s, NewGatewayHTTPTransport(), globalNotificationSys.ConfiguredTargetIDs())
}
func lookupConfigs(s config.Config, objAPI ObjectLayer) {
ctx := GlobalContext
var err error
if !globalActiveCred.IsValid() {
// Env doesn't seem to be set, we fallback to lookup creds from the config.
globalActiveCred, err = config.LookupCreds(s[config.CredentialsSubSys][config.Default])
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Invalid credentials configuration: %w", err))
}
}
dnsURL, dnsUser, dnsPass, err := env.LookupEnv(config.EnvDNSWebhook)
if err != nil {
if globalIsGateway {
logger.FatalIf(err, "Unable to initialize remote webhook DNS config")
} else {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize remote webhook DNS config %w", err))
}
}
if err == nil && dnsURL != "" {
globalDNSConfig, err = dns.NewOperatorDNS(dnsURL,
dns.Authentication(dnsUser, dnsPass),
dns.RootCAs(globalRootCAs))
if err != nil {
if globalIsGateway {
logger.FatalIf(err, "Unable to initialize remote webhook DNS config")
} else {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize remote webhook DNS config %w", err))
}
}
}
etcdCfg, err := etcd.LookupConfig(s[config.EtcdSubSys][config.Default], globalRootCAs)
if err != nil {
if globalIsGateway {
logger.FatalIf(err, "Unable to initialize etcd config")
} else {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize etcd config: %w", err))
}
}
if etcdCfg.Enabled {
if globalEtcdClient == nil {
globalEtcdClient, err = etcd.New(etcdCfg)
if err != nil {
if globalIsGateway {
logger.FatalIf(err, "Unable to initialize etcd config")
} else {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize etcd config: %w", err))
}
}
}
if len(globalDomainNames) != 0 && !globalDomainIPs.IsEmpty() && globalEtcdClient != nil {
if globalDNSConfig != nil {
// if global DNS is already configured, indicate with a warning, incase
// users are confused.
logger.LogIf(ctx, fmt.Errorf("DNS store is already configured with %s, not using etcd for DNS store", globalDNSConfig))
} else {
globalDNSConfig, err = dns.NewCoreDNS(etcdCfg.Config,
dns.DomainNames(globalDomainNames),
dns.DomainIPs(globalDomainIPs),
dns.DomainPort(globalMinioPort),
dns.CoreDNSPath(etcdCfg.CoreDNSPath),
)
if err != nil {
if globalIsGateway {
logger.FatalIf(err, "Unable to initialize DNS config")
} else {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize DNS config for %s: %w",
globalDomainNames, err))
}
}
}
}
}
// Bucket federation is 'true' only when IAM assets are not namespaced
// per tenant and all tenants interested in globally available users
// if namespace was requested such as specifying etcdPathPrefix then
// we assume that users are interested in global bucket support
// but not federation.
globalBucketFederation = etcdCfg.PathPrefix == "" && etcdCfg.Enabled
globalSite, err = config.LookupSite(s[config.SiteSubSys][config.Default], s[config.RegionSubSys][config.Default])
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Invalid site configuration: %w", err))
}
apiConfig, err := api.LookupConfig(s[config.APISubSys][config.Default])
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Invalid api configuration: %w", err))
}
// Initialize remote instance transport once.
getRemoteInstanceTransportOnce.Do(func() {
getRemoteInstanceTransport = newGatewayHTTPTransport(apiConfig.RemoteTransportDeadline)
})
if globalIsErasure && objAPI != nil {
setDriveCounts := objAPI.SetDriveCounts()
for i, setDriveCount := range setDriveCounts {
sc, err := storageclass.LookupConfig(s[config.StorageClassSubSys][config.Default], setDriveCount)
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize storage class config: %w", err))
break
}
// if we validated all setDriveCounts and it was successful
// proceed to store the correct storage class globally.
if i == len(setDriveCounts)-1 {
globalStorageClass.Update(sc)
}
}
}
globalCacheConfig, err = cache.LookupConfig(s[config.CacheSubSys][config.Default])
if err != nil {
if globalIsGateway {
logger.FatalIf(err, "Unable to setup cache")
} else {
logger.LogIf(ctx, fmt.Errorf("Unable to setup cache: %w", err))
}
}
if globalCacheConfig.Enabled {
if cacheEncKey := env.Get(cache.EnvCacheEncryptionKey, ""); cacheEncKey != "" {
globalCacheKMS, err = kms.Parse(cacheEncKey)
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to setup encryption cache: %w", err))
}
}
}
globalAutoEncryption = crypto.LookupAutoEncryption() // Enable auto-encryption if enabled
if globalAutoEncryption && GlobalKMS == nil {
logger.Fatal(errors.New("no KMS configured"), "MINIO_KMS_AUTO_ENCRYPTION requires a valid KMS configuration")
}
globalSTSTLSConfig, err = xtls.Lookup(s[config.IdentityTLSSubSys][config.Default])
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize X.509/TLS STS API: %w", err))
}
if globalSTSTLSConfig.InsecureSkipVerify {
logger.Info("CRITICAL: enabling %s is not recommended in a production environment", xtls.EnvIdentityTLSSkipVerify)
}
globalOpenIDConfig, err = openid.LookupConfig(s[config.IdentityOpenIDSubSys][config.Default],
NewGatewayHTTPTransport(), xhttp.DrainBody, globalSite.Region)
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize OpenID: %w", err))
}
opaCfg, err := opa.LookupConfig(s[config.PolicyOPASubSys][config.Default],
NewGatewayHTTPTransport(), xhttp.DrainBody)
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize OPA: %w", err))
}
globalOpenIDValidators = getOpenIDValidators(globalOpenIDConfig)
globalPolicyOPA = opa.New(opaCfg)
globalLDAPConfig, err = xldap.Lookup(s[config.IdentityLDAPSubSys][config.Default],
globalRootCAs)
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to parse LDAP configuration: %w", err))
}
globalSubnetConfig, err = subnet.LookupConfig(s[config.SubnetSubSys][config.Default])
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to parse subnet configuration: %w", err))
}
// Load logger targets based on user's configuration
loggerUserAgent := getUserAgent(getMinioMode())
loggerCfg, err := logger.LookupConfig(s)
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize logger: %w", err))
}
for _, l := range loggerCfg.HTTP {
if l.Enabled {
l.LogOnce = logger.LogOnceIf
l.UserAgent = loggerUserAgent
l.Transport = NewGatewayHTTPTransportWithClientCerts(l.ClientCert, l.ClientKey)
// Enable http logging
if err = logger.AddTarget(http.New(l)); err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize console HTTP target: %w", err))
}
}
}
for _, l := range loggerCfg.AuditWebhook {
if l.Enabled {
l.LogOnce = logger.LogOnceIf
l.UserAgent = loggerUserAgent
l.Transport = NewGatewayHTTPTransportWithClientCerts(l.ClientCert, l.ClientKey)
// Enable http audit logging
if err = logger.AddAuditTarget(http.New(l)); err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize audit HTTP target: %w", err))
}
}
}
for _, l := range loggerCfg.AuditKafka {
if l.Enabled {
l.LogOnce = logger.LogOnceIf
// Enable Kafka audit logging
if err = logger.AddAuditTarget(kafka.New(l)); err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize audit Kafka target: %w", err))
}
}
}
globalConfigTargetList, err = notify.GetNotificationTargets(GlobalContext, s, NewGatewayHTTPTransport(), false)
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize notification target(s): %w", err))
}
globalEnvTargetList, err = notify.GetNotificationTargets(GlobalContext, newServerConfig(), NewGatewayHTTPTransport(), true)
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Unable to initialize notification target(s): %w", err))
}
// Apply dynamic config values
if err := applyDynamicConfig(ctx, objAPI, s); err != nil {
if globalIsGateway {
logger.FatalIf(err, "Unable to initialize dynamic configuration")
} else {
logger.LogIf(ctx, err)
}
}
}
// applyDynamicConfig will apply dynamic config values.
// Dynamic systems should be in config.SubSystemsDynamic as well.
func applyDynamicConfig(ctx context.Context, objAPI ObjectLayer, s config.Config) error {
// Read all dynamic configs.
// API
apiConfig, err := api.LookupConfig(s[config.APISubSys][config.Default])
if err != nil {
logger.LogIf(ctx, fmt.Errorf("Invalid api configuration: %w", err))
}
// Compression
cmpCfg, err := compress.LookupConfig(s[config.CompressionSubSys][config.Default])
if err != nil {
return fmt.Errorf("Unable to setup Compression: %w", err)
}
// Validate if the object layer supports compression.
if objAPI != nil {
if cmpCfg.Enabled && !objAPI.IsCompressionSupported() {
return fmt.Errorf("Backend does not support compression")
}
}
// Heal
healCfg, err := heal.LookupConfig(s[config.HealSubSys][config.Default])
if err != nil {
return fmt.Errorf("Unable to apply heal config: %w", err)
}
// Scanner
scannerCfg, err := scanner.LookupConfig(s[config.ScannerSubSys][config.Default])
if err != nil {
return fmt.Errorf("Unable to apply scanner config: %w", err)
}
// Apply configurations.
// We should not fail after this.
var setDriveCounts []int
if objAPI != nil {
setDriveCounts = objAPI.SetDriveCounts()
}
globalAPIConfig.init(apiConfig, setDriveCounts)
globalCompressConfigMu.Lock()
globalCompressConfig = cmpCfg
globalCompressConfigMu.Unlock()
globalHealConfig.Update(healCfg)
// update dynamic scanner values.
scannerCycle.Update(scannerCfg.Cycle)
logger.LogIf(ctx, scannerSleeper.Update(scannerCfg.Delay, scannerCfg.MaxWait))
// Update all dynamic config values in memory.
globalServerConfigMu.Lock()
defer globalServerConfigMu.Unlock()
if globalServerConfig != nil {
for k := range config.SubSystemsDynamic {
globalServerConfig[k] = s[k]
}
}
return nil
}
// Help - return sub-system level help
type Help struct {
SubSys string `json:"subSys"`
Description string `json:"description"`
MultipleTargets bool `json:"multipleTargets"`
KeysHelp config.HelpKVS `json:"keysHelp"`
}
// GetHelp - returns help for sub-sys, a key for a sub-system or all the help.
func GetHelp(subSys, key string, envOnly bool) (Help, error) {
if len(subSys) == 0 {
return Help{KeysHelp: config.HelpSubSysMap[subSys]}, nil
}
subSystemValue := strings.SplitN(subSys, config.SubSystemSeparator, 2)
if len(subSystemValue) == 0 {
return Help{}, config.Errorf("invalid number of arguments %s", subSys)
}
subSys = subSystemValue[0]
subSysHelp, ok := config.HelpSubSysMap[""].Lookup(subSys)
if !ok {
subSysHelp, ok = config.HelpDeprecatedSubSysMap[subSys]
if !ok {
return Help{}, config.Errorf("unknown sub-system %s", subSys)
}
}
h, ok := config.HelpSubSysMap[subSys]
if !ok {
return Help{}, config.Errorf("unknown sub-system %s", subSys)
}
if key != "" {
value, ok := h.Lookup(key)
if !ok {
return Help{}, config.Errorf("unknown key %s for sub-system %s",
key, subSys)
}
h = config.HelpKVS{value}
}
envHelp := config.HelpKVS{}
if envOnly {
// Only for multiple targets, make sure
// to list the ENV, for regular k/v EnableKey is
// implicit, for ENVs we cannot make it implicit.
if subSysHelp.MultipleTargets {
envK := config.EnvPrefix + strings.ToTitle(subSys) + config.EnvWordDelimiter + strings.ToTitle(madmin.EnableKey)
envHelp = append(envHelp, config.HelpKV{
Key: envK,
Description: fmt.Sprintf("enable %s target, default is 'off'", subSys),
Optional: false,
Type: "on|off",
})
}
for _, hkv := range h {
envK := config.EnvPrefix + strings.ToTitle(subSys) + config.EnvWordDelimiter + strings.ToTitle(hkv.Key)
envHelp = append(envHelp, config.HelpKV{
Key: envK,
Description: hkv.Description,
Optional: hkv.Optional,
Type: hkv.Type,
})
}
h = envHelp
}
return Help{
SubSys: subSys,
Description: subSysHelp.Description,
MultipleTargets: subSysHelp.MultipleTargets,
KeysHelp: h,
}, nil
}
func newServerConfig() config.Config {
return config.New()
}
// newSrvConfig - initialize a new server config, saves env parameters if
// found, otherwise use default parameters
func newSrvConfig(objAPI ObjectLayer) error {
// Initialize server config.
srvCfg := newServerConfig()
// hold the mutex lock before a new config is assigned.
globalServerConfigMu.Lock()
globalServerConfig = srvCfg
globalServerConfigMu.Unlock()
// Save config into file.
return saveServerConfig(GlobalContext, objAPI, globalServerConfig)
}
func getValidConfig(objAPI ObjectLayer) (config.Config, error) {
return readServerConfig(GlobalContext, objAPI)
}
// 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, objAPI)
// 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.Enabled {
validators.Add(&cfg)
}
return validators
}