minio/cmd/config-current.go

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/*
* MinIO Cloud Storage, (C) 2016-2019 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"context"
"strings"
"sync"
"github.com/minio/minio/cmd/config"
"github.com/minio/minio/cmd/config/cache"
"github.com/minio/minio/cmd/config/compress"
"github.com/minio/minio/cmd/config/etcd"
xldap "github.com/minio/minio/cmd/config/identity/ldap"
"github.com/minio/minio/cmd/config/identity/openid"
"github.com/minio/minio/cmd/config/notify"
"github.com/minio/minio/cmd/config/policy/opa"
"github.com/minio/minio/cmd/config/storageclass"
"github.com/minio/minio/cmd/crypto"
xhttp "github.com/minio/minio/cmd/http"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/cmd/logger/target/http"
"github.com/minio/minio/pkg/dns"
"github.com/minio/minio/pkg/env"
)
var (
// globalServerConfig server config.
globalServerConfig config.Config
globalServerConfigMu sync.RWMutex
)
func validateConfig(s config.Config) error {
// Disable merging env values with config for validation.
env.SetEnvOff()
// Enable env values upon return.
defer env.SetEnvOn()
if _, err := config.LookupCreds(s[config.CredentialsSubSys][config.Default]); err != nil {
return err
}
if _, err := config.LookupRegion(s[config.RegionSubSys][config.Default]); err != nil {
return err
}
if _, err := config.LookupWorm(s[config.WormSubSys][config.Default]); err != nil {
return err
}
if globalIsXL {
if _, err := storageclass.LookupConfig(s[config.StorageClassSubSys][config.Default],
globalXLSetDriveCount); err != nil {
return err
}
}
if _, err := etcd.LookupConfig(s[config.EtcdSubSys][config.Default], globalRootCAs); err != nil {
return err
}
if _, err := cache.LookupConfig(s[config.CacheSubSys][config.Default]); err != nil {
return err
}
if _, err := crypto.LookupConfig(s[config.KmsVaultSubSys][config.Default]); err != nil {
return err
}
if _, err := compress.LookupConfig(s[config.CompressionSubSys][config.Default]); err != nil {
return err
}
if _, err := openid.LookupConfig(s[config.IdentityOpenIDSubSys][config.Default],
NewCustomHTTPTransport(), xhttp.DrainBody); err != nil {
return err
}
if _, err := xldap.Lookup(s[config.IdentityLDAPSubSys][config.Default],
globalRootCAs); err != nil {
return err
}
if _, err := opa.LookupConfig(s[config.PolicyOPASubSys][config.Default],
NewCustomHTTPTransport(), xhttp.DrainBody); err != nil {
return err
}
if _, err := logger.LookupConfig(s); err != nil {
return err
}
return notify.TestNotificationTargets(s, GlobalServiceDoneCh, globalRootCAs)
}
func lookupConfigs(s config.Config) (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 {
return config.Errorf("Invalid credentials configuration: %s", err)
}
}
etcdCfg, err := etcd.LookupConfig(s[config.EtcdSubSys][config.Default], globalRootCAs)
if err != nil {
return config.Errorf("Unable to initialize etcd config: %s", err)
}
globalEtcdClient, err = etcd.New(etcdCfg)
if err != nil {
return config.Errorf("Unable to initialize etcd config: %s", err)
}
if len(globalDomainNames) != 0 && !globalDomainIPs.IsEmpty() && globalEtcdClient != nil {
globalDNSConfig, err = dns.NewCoreDNS(globalEtcdClient,
dns.DomainNames(globalDomainNames),
dns.DomainIPs(globalDomainIPs),
dns.DomainPort(globalMinioPort),
dns.CoreDNSPath(etcdCfg.CoreDNSPath),
)
if err != nil {
return config.Errorf("Unable to initialize DNS config for %s: %s", globalDomainNames, err)
}
}
globalServerRegion, err = config.LookupRegion(s[config.RegionSubSys][config.Default])
if err != nil {
return config.Errorf("Invalid region configuration: %s", err)
}
globalWORMEnabled, err = config.LookupWorm(s[config.WormSubSys][config.Default])
if err != nil {
return config.Errorf("Invalid worm configuration: %s", err)
}
if globalIsXL {
globalStorageClass, err = storageclass.LookupConfig(s[config.StorageClassSubSys][config.Default],
globalXLSetDriveCount)
if err != nil {
return config.Errorf("Unable to initialize storage class config: %s", err)
}
}
globalCacheConfig, err = cache.LookupConfig(s[config.CacheSubSys][config.Default])
if err != nil {
return config.Errorf("Unable to setup cache: %s", err)
}
if globalCacheConfig.Enabled {
if cacheEncKey := env.Get(cache.EnvCacheEncryptionMasterKey, ""); cacheEncKey != "" {
globalCacheKMS, err = crypto.ParseMasterKey(cacheEncKey)
if err != nil {
return config.Errorf("Unable to setup encryption cache: %s", err)
}
}
}
kmsCfg, err := crypto.LookupConfig(s[config.KmsVaultSubSys][config.Default])
if err != nil {
return config.Errorf("Unable to setup KMS config: %s", err)
}
GlobalKMS, err = crypto.NewKMS(kmsCfg)
if err != nil {
return config.Errorf("Unable to setup KMS with current KMS config: %s", err)
}
// Enable auto-encryption if enabled
globalAutoEncryption = kmsCfg.AutoEncryption
globalCompressConfig, err = compress.LookupConfig(s[config.CompressionSubSys][config.Default])
if err != nil {
return config.Errorf("Unable to setup Compression: %s", err)
}
globalOpenIDConfig, err = openid.LookupConfig(s[config.IdentityOpenIDSubSys][config.Default],
NewCustomHTTPTransport(), xhttp.DrainBody)
if err != nil {
return config.Errorf("Unable to initialize OpenID: %s", err)
}
opaCfg, err := opa.LookupConfig(s[config.PolicyOPASubSys][config.Default],
NewCustomHTTPTransport(), xhttp.DrainBody)
if err != nil {
return config.Errorf("Unable to initialize OPA: %s", err)
}
globalOpenIDValidators = getOpenIDValidators(globalOpenIDConfig)
globalPolicyOPA = opa.New(opaCfg)
globalLDAPConfig, err = xldap.Lookup(s[config.IdentityLDAPSubSys][config.Default],
globalRootCAs)
if err != nil {
return config.Errorf("Unable to parse LDAP configuration: %s", err)
}
// Load logger targets based on user's configuration
loggerUserAgent := getUserAgent(getMinioMode())
loggerCfg, err := logger.LookupConfig(s)
if err != nil {
return config.Errorf("Unable to initialize logger: %s", err)
}
for _, l := range loggerCfg.HTTP {
if l.Enabled {
// Enable http logging
logger.AddTarget(http.New(l.Endpoint, loggerUserAgent, string(logger.All), NewCustomHTTPTransport()))
}
}
for _, l := range loggerCfg.Audit {
if l.Enabled {
// Enable http audit logging
logger.AddAuditTarget(http.New(l.Endpoint, loggerUserAgent, string(logger.All), NewCustomHTTPTransport()))
}
}
// Enable console logging
logger.AddTarget(globalConsoleSys.Console())
return nil
}
var helpMap = map[string]config.HelpKV{
config.RegionSubSys: config.RegionHelp,
config.WormSubSys: config.WormHelp,
config.EtcdSubSys: etcd.Help,
config.CacheSubSys: cache.Help,
config.CompressionSubSys: compress.Help,
config.StorageClassSubSys: storageclass.Help,
config.IdentityOpenIDSubSys: openid.Help,
config.IdentityLDAPSubSys: xldap.Help,
config.PolicyOPASubSys: opa.Help,
config.KmsVaultSubSys: crypto.Help,
config.LoggerHTTPSubSys: logger.Help,
config.LoggerHTTPAuditSubSys: logger.HelpAudit,
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,
}
// GetHelp - returns help for sub-sys, a key for a sub-system or all the help.
func GetHelp(subSys, key string, envOnly bool) (config.HelpKV, error) {
if len(subSys) == 0 {
return nil, config.Error("no help available for empty sub-system inputs")
}
subSystemValue := strings.SplitN(subSys, config.SubSystemSeparator, 2)
if len(subSystemValue) == 0 {
return nil, config.Errorf("invalid number of arguments %s", subSys)
}
if !config.SubSystems.Contains(subSystemValue[0]) {
return nil, config.Errorf("unknown sub-system %s", subSys)
}
help := helpMap[subSystemValue[0]]
if key != "" {
value, ok := help[key]
if !ok {
return nil, config.Errorf("unknown key %s for sub-system %s", key, subSys)
}
help = config.HelpKV{
key: value,
}
}
envHelp := config.HelpKV{}
if envOnly {
for k, v := range help {
envK := config.EnvPrefix + strings.Join([]string{
strings.ToTitle(subSys), strings.ToTitle(k),
}, config.EnvWordDelimiter)
envHelp[envK] = v
}
help = envHelp
}
return help, nil
}
func configDefaultKVS() map[string]config.KVS {
m := make(map[string]config.KVS)
for k, tgt := range newServerConfig() {
m[k] = tgt[config.Default]
}
return m
}
func newServerConfig() config.Config {
srvCfg := config.New()
for k := range srvCfg {
// Initialize with default KVS
switch k {
case config.EtcdSubSys:
srvCfg[k][config.Default] = etcd.DefaultKVS
case config.CacheSubSys:
srvCfg[k][config.Default] = cache.DefaultKVS
case config.CompressionSubSys:
srvCfg[k][config.Default] = compress.DefaultKVS
case config.StorageClassSubSys:
srvCfg[k][config.Default] = storageclass.DefaultKVS
case config.IdentityLDAPSubSys:
srvCfg[k][config.Default] = xldap.DefaultKVS
case config.IdentityOpenIDSubSys:
srvCfg[k][config.Default] = openid.DefaultKVS
case config.PolicyOPASubSys:
srvCfg[k][config.Default] = opa.DefaultKVS
case config.WormSubSys:
srvCfg[k][config.Default] = config.DefaultWormKVS
case config.RegionSubSys:
srvCfg[k][config.Default] = config.DefaultRegionKVS
case config.CredentialsSubSys:
srvCfg[k][config.Default] = config.DefaultCredentialKVS
case config.KmsVaultSubSys:
srvCfg[k][config.Default] = crypto.DefaultKVS
case config.LoggerHTTPSubSys:
srvCfg[k][config.Default] = logger.DefaultKVS
case config.LoggerHTTPAuditSubSys:
srvCfg[k][config.Default] = logger.DefaultAuditKVS
}
}
for k, v := range notify.DefaultNotificationKVS {
srvCfg[k][config.Default] = v
}
return srvCfg
}
// 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()
// Override any values from ENVs.
if err := lookupConfigs(srvCfg); err != nil {
return err
}
// hold the mutex lock before a new config is assigned.
globalServerConfigMu.Lock()
globalServerConfig = srvCfg
globalServerConfigMu.Unlock()
// Save config into file.
return saveServerConfig(context.Background(), objAPI, globalServerConfig, nil)
}
func getValidConfig(objAPI ObjectLayer) (config.Config, error) {
srvCfg, err := readServerConfig(context.Background(), objAPI)
if err != nil {
return nil, err
}
defaultKVS := configDefaultKVS()
for _, k := range config.SubSystems.ToSlice() {
_, ok := srvCfg[k][config.Default]
if !ok {
// Populate default configs for any new
// sub-systems added automatically.
srvCfg[k][config.Default] = defaultKVS[k]
}
}
return srvCfg, nil
}
// 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.
if err = lookupConfigs(srvCfg); err != nil {
return err
}
// 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
}