minio/internal/logger/config.go
2022-02-24 09:05:33 -08:00

651 lines
18 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 logger
import (
"crypto/tls"
"errors"
"strconv"
"strings"
"github.com/minio/pkg/env"
xnet "github.com/minio/pkg/net"
"github.com/minio/minio/internal/config"
"github.com/minio/minio/internal/logger/target/http"
"github.com/minio/minio/internal/logger/target/kafka"
)
// Console logger target
type Console struct {
Enabled bool `json:"enabled"`
}
// Audit/Logger constants
const (
Endpoint = "endpoint"
AuthToken = "auth_token"
ClientCert = "client_cert"
ClientKey = "client_key"
QueueSize = "queue_size"
KafkaBrokers = "brokers"
KafkaTopic = "topic"
KafkaTLS = "tls"
KafkaTLSSkipVerify = "tls_skip_verify"
KafkaTLSClientAuth = "tls_client_auth"
KafkaSASL = "sasl"
KafkaSASLUsername = "sasl_username"
KafkaSASLPassword = "sasl_password"
KafkaSASLMechanism = "sasl_mechanism"
KafkaClientTLSCert = "client_tls_cert"
KafkaClientTLSKey = "client_tls_key"
KafkaVersion = "version"
EnvLoggerWebhookEnable = "MINIO_LOGGER_WEBHOOK_ENABLE"
EnvLoggerWebhookEndpoint = "MINIO_LOGGER_WEBHOOK_ENDPOINT"
EnvLoggerWebhookAuthToken = "MINIO_LOGGER_WEBHOOK_AUTH_TOKEN"
EnvLoggerWebhookClientCert = "MINIO_LOGGER_WEBHOOK_CLIENT_CERT"
EnvLoggerWebhookClientKey = "MINIO_LOGGER_WEBHOOK_CLIENT_KEY"
EnvLoggerWebhookQueueSize = "MINIO_LOGGER_WEBHOOK_QUEUE_SIZE"
EnvAuditWebhookEnable = "MINIO_AUDIT_WEBHOOK_ENABLE"
EnvAuditWebhookEndpoint = "MINIO_AUDIT_WEBHOOK_ENDPOINT"
EnvAuditWebhookAuthToken = "MINIO_AUDIT_WEBHOOK_AUTH_TOKEN"
EnvAuditWebhookClientCert = "MINIO_AUDIT_WEBHOOK_CLIENT_CERT"
EnvAuditWebhookClientKey = "MINIO_AUDIT_WEBHOOK_CLIENT_KEY"
EnvAuditWebhookQueueSize = "MINIO_AUDIT_WEBHOOK_QUEUE_SIZE"
EnvKafkaEnable = "MINIO_AUDIT_KAFKA_ENABLE"
EnvKafkaBrokers = "MINIO_AUDIT_KAFKA_BROKERS"
EnvKafkaTopic = "MINIO_AUDIT_KAFKA_TOPIC"
EnvKafkaTLS = "MINIO_AUDIT_KAFKA_TLS"
EnvKafkaTLSSkipVerify = "MINIO_AUDIT_KAFKA_TLS_SKIP_VERIFY"
EnvKafkaTLSClientAuth = "MINIO_AUDIT_KAFKA_TLS_CLIENT_AUTH"
EnvKafkaSASLEnable = "MINIO_AUDIT_KAFKA_SASL"
EnvKafkaSASLUsername = "MINIO_AUDIT_KAFKA_SASL_USERNAME"
EnvKafkaSASLPassword = "MINIO_AUDIT_KAFKA_SASL_PASSWORD"
EnvKafkaSASLMechanism = "MINIO_AUDIT_KAFKA_SASL_MECHANISM"
EnvKafkaClientTLSCert = "MINIO_AUDIT_KAFKA_CLIENT_TLS_CERT"
EnvKafkaClientTLSKey = "MINIO_AUDIT_KAFKA_CLIENT_TLS_KEY"
EnvKafkaVersion = "MINIO_AUDIT_KAFKA_VERSION"
)
// Default KVS for loggerHTTP and loggerAuditHTTP
var (
DefaultLoggerWebhookKVS = config.KVS{
config.KV{
Key: config.Enable,
Value: config.EnableOff,
},
config.KV{
Key: Endpoint,
Value: "",
},
config.KV{
Key: AuthToken,
Value: "",
},
config.KV{
Key: ClientCert,
Value: "",
},
config.KV{
Key: ClientKey,
Value: "",
},
config.KV{
Key: QueueSize,
Value: "100000",
},
}
DefaultAuditWebhookKVS = config.KVS{
config.KV{
Key: config.Enable,
Value: config.EnableOff,
},
config.KV{
Key: Endpoint,
Value: "",
},
config.KV{
Key: AuthToken,
Value: "",
},
config.KV{
Key: ClientCert,
Value: "",
},
config.KV{
Key: ClientKey,
Value: "",
},
config.KV{
Key: QueueSize,
Value: "100000",
},
}
DefaultAuditKafkaKVS = config.KVS{
config.KV{
Key: config.Enable,
Value: config.EnableOff,
},
config.KV{
Key: KafkaTopic,
Value: "",
},
config.KV{
Key: KafkaBrokers,
Value: "",
},
config.KV{
Key: KafkaSASLUsername,
Value: "",
},
config.KV{
Key: KafkaSASLPassword,
Value: "",
},
config.KV{
Key: KafkaSASLMechanism,
Value: "plain",
},
config.KV{
Key: KafkaClientTLSCert,
Value: "",
},
config.KV{
Key: KafkaClientTLSKey,
Value: "",
},
config.KV{
Key: KafkaTLSClientAuth,
Value: "0",
},
config.KV{
Key: KafkaSASL,
Value: config.EnableOff,
},
config.KV{
Key: KafkaTLS,
Value: config.EnableOff,
},
config.KV{
Key: KafkaTLSSkipVerify,
Value: config.EnableOff,
},
config.KV{
Key: KafkaVersion,
Value: "",
},
}
)
// Config console and http logger targets
type Config struct {
Console Console `json:"console"`
HTTP map[string]http.Config `json:"http"`
AuditWebhook map[string]http.Config `json:"audit"`
AuditKafka map[string]kafka.Config `json:"audit_kafka"`
}
// NewConfig - initialize new logger config.
func NewConfig() Config {
cfg := Config{
// Console logging is on by default
Console: Console{
Enabled: true,
},
HTTP: make(map[string]http.Config),
AuditWebhook: make(map[string]http.Config),
AuditKafka: make(map[string]kafka.Config),
}
return cfg
}
func lookupLegacyConfigForSubSys(subSys string) Config {
cfg := NewConfig()
switch subSys {
case config.LoggerWebhookSubSys:
var loggerTargets []string
envs := env.List(legacyEnvLoggerHTTPEndpoint)
for _, k := range envs {
target := strings.TrimPrefix(k, legacyEnvLoggerHTTPEndpoint+config.Default)
if target == legacyEnvLoggerHTTPEndpoint {
target = config.Default
}
loggerTargets = append(loggerTargets, target)
}
// Load HTTP logger from the environment if found
for _, target := range loggerTargets {
endpointEnv := legacyEnvLoggerHTTPEndpoint
if target != config.Default {
endpointEnv = legacyEnvLoggerHTTPEndpoint + config.Default + target
}
endpoint := env.Get(endpointEnv, "")
if endpoint == "" {
continue
}
cfg.HTTP[target] = http.Config{
Enabled: true,
Endpoint: endpoint,
}
}
case config.AuditWebhookSubSys:
// List legacy audit ENVs if any.
var loggerAuditTargets []string
envs := env.List(legacyEnvAuditLoggerHTTPEndpoint)
for _, k := range envs {
target := strings.TrimPrefix(k, legacyEnvAuditLoggerHTTPEndpoint+config.Default)
if target == legacyEnvAuditLoggerHTTPEndpoint {
target = config.Default
}
loggerAuditTargets = append(loggerAuditTargets, target)
}
for _, target := range loggerAuditTargets {
endpointEnv := legacyEnvAuditLoggerHTTPEndpoint
if target != config.Default {
endpointEnv = legacyEnvAuditLoggerHTTPEndpoint + config.Default + target
}
endpoint := env.Get(endpointEnv, "")
if endpoint == "" {
continue
}
cfg.AuditWebhook[target] = http.Config{
Enabled: true,
Endpoint: endpoint,
}
}
}
return cfg
}
// GetAuditKafka - returns a map of registered notification 'kafka' targets
func GetAuditKafka(kafkaKVS map[string]config.KVS) (map[string]kafka.Config, error) {
kafkaTargets := make(map[string]kafka.Config)
for k, kv := range config.Merge(kafkaKVS, EnvKafkaEnable, DefaultAuditKafkaKVS) {
enableEnv := EnvKafkaEnable
if k != config.Default {
enableEnv = enableEnv + config.Default + k
}
enabled, err := config.ParseBool(env.Get(enableEnv, kv.Get(config.Enable)))
if err != nil {
return nil, err
}
if !enabled {
continue
}
var brokers []xnet.Host
brokersEnv := EnvKafkaBrokers
if k != config.Default {
brokersEnv = brokersEnv + config.Default + k
}
kafkaBrokers := env.Get(brokersEnv, kv.Get(KafkaBrokers))
if len(kafkaBrokers) == 0 {
return nil, config.Errorf("kafka 'brokers' cannot be empty")
}
for _, s := range strings.Split(kafkaBrokers, config.ValueSeparator) {
var host *xnet.Host
host, err = xnet.ParseHost(s)
if err != nil {
break
}
brokers = append(brokers, *host)
}
if err != nil {
return nil, err
}
clientAuthEnv := EnvKafkaTLSClientAuth
if k != config.Default {
clientAuthEnv = clientAuthEnv + config.Default + k
}
clientAuth, err := strconv.Atoi(env.Get(clientAuthEnv, kv.Get(KafkaTLSClientAuth)))
if err != nil {
return nil, err
}
topicEnv := EnvKafkaTopic
if k != config.Default {
topicEnv = topicEnv + config.Default + k
}
versionEnv := EnvKafkaVersion
if k != config.Default {
versionEnv = versionEnv + config.Default + k
}
kafkaArgs := kafka.Config{
Enabled: enabled,
Brokers: brokers,
Topic: env.Get(topicEnv, kv.Get(KafkaTopic)),
Version: env.Get(versionEnv, kv.Get(KafkaVersion)),
}
tlsEnableEnv := EnvKafkaTLS
if k != config.Default {
tlsEnableEnv = tlsEnableEnv + config.Default + k
}
tlsSkipVerifyEnv := EnvKafkaTLSSkipVerify
if k != config.Default {
tlsSkipVerifyEnv = tlsSkipVerifyEnv + config.Default + k
}
tlsClientTLSCertEnv := EnvKafkaClientTLSCert
if k != config.Default {
tlsClientTLSCertEnv = tlsClientTLSCertEnv + config.Default + k
}
tlsClientTLSKeyEnv := EnvKafkaClientTLSKey
if k != config.Default {
tlsClientTLSKeyEnv = tlsClientTLSKeyEnv + config.Default + k
}
kafkaArgs.TLS.Enable = env.Get(tlsEnableEnv, kv.Get(KafkaTLS)) == config.EnableOn
kafkaArgs.TLS.SkipVerify = env.Get(tlsSkipVerifyEnv, kv.Get(KafkaTLSSkipVerify)) == config.EnableOn
kafkaArgs.TLS.ClientAuth = tls.ClientAuthType(clientAuth)
kafkaArgs.TLS.ClientTLSCert = env.Get(tlsClientTLSCertEnv, kv.Get(KafkaClientTLSCert))
kafkaArgs.TLS.ClientTLSKey = env.Get(tlsClientTLSKeyEnv, kv.Get(KafkaClientTLSKey))
saslEnableEnv := EnvKafkaSASLEnable
if k != config.Default {
saslEnableEnv = saslEnableEnv + config.Default + k
}
saslUsernameEnv := EnvKafkaSASLUsername
if k != config.Default {
saslUsernameEnv = saslUsernameEnv + config.Default + k
}
saslPasswordEnv := EnvKafkaSASLPassword
if k != config.Default {
saslPasswordEnv = saslPasswordEnv + config.Default + k
}
saslMechanismEnv := EnvKafkaSASLMechanism
if k != config.Default {
saslMechanismEnv = saslMechanismEnv + config.Default + k
}
kafkaArgs.SASL.Enable = env.Get(saslEnableEnv, kv.Get(KafkaSASL)) == config.EnableOn
kafkaArgs.SASL.User = env.Get(saslUsernameEnv, kv.Get(KafkaSASLUsername))
kafkaArgs.SASL.Password = env.Get(saslPasswordEnv, kv.Get(KafkaSASLPassword))
kafkaArgs.SASL.Mechanism = env.Get(saslMechanismEnv, kv.Get(KafkaSASLMechanism))
kafkaTargets[k] = kafkaArgs
}
return kafkaTargets, nil
}
func lookupLoggerWebhookConfig(scfg config.Config, cfg Config) (Config, error) {
envs := env.List(EnvLoggerWebhookEndpoint)
var loggerTargets []string
for _, k := range envs {
target := strings.TrimPrefix(k, EnvLoggerWebhookEndpoint+config.Default)
if target == EnvLoggerWebhookEndpoint {
target = config.Default
}
loggerTargets = append(loggerTargets, target)
}
// Load HTTP logger from the environment if found
for _, target := range loggerTargets {
if v, ok := cfg.HTTP[target]; ok && v.Enabled {
// This target is already enabled using the
// legacy environment variables, ignore.
continue
}
enableEnv := EnvLoggerWebhookEnable
if target != config.Default {
enableEnv = EnvLoggerWebhookEnable + config.Default + target
}
enable, err := config.ParseBool(env.Get(enableEnv, ""))
if err != nil || !enable {
continue
}
endpointEnv := EnvLoggerWebhookEndpoint
if target != config.Default {
endpointEnv = EnvLoggerWebhookEndpoint + config.Default + target
}
authTokenEnv := EnvLoggerWebhookAuthToken
if target != config.Default {
authTokenEnv = EnvLoggerWebhookAuthToken + config.Default + target
}
clientCertEnv := EnvLoggerWebhookClientCert
if target != config.Default {
clientCertEnv = EnvLoggerWebhookClientCert + config.Default + target
}
clientKeyEnv := EnvLoggerWebhookClientKey
if target != config.Default {
clientKeyEnv = EnvLoggerWebhookClientKey + config.Default + target
}
err = config.EnsureCertAndKey(env.Get(clientCertEnv, ""), env.Get(clientKeyEnv, ""))
if err != nil {
return cfg, err
}
queueSizeEnv := EnvAuditWebhookQueueSize
if target != config.Default {
queueSizeEnv = EnvAuditWebhookQueueSize + config.Default + target
}
queueSize, err := strconv.Atoi(env.Get(queueSizeEnv, "100000"))
if err != nil {
return cfg, err
}
if queueSize <= 0 {
return cfg, errors.New("invalid queue_size value")
}
cfg.HTTP[target] = http.Config{
Enabled: true,
Endpoint: env.Get(endpointEnv, ""),
AuthToken: env.Get(authTokenEnv, ""),
ClientCert: env.Get(clientCertEnv, ""),
ClientKey: env.Get(clientKeyEnv, ""),
QueueSize: queueSize,
}
}
for starget, kv := range scfg[config.LoggerWebhookSubSys] {
if l, ok := cfg.HTTP[starget]; ok && l.Enabled {
// Ignore this HTTP logger config since there is
// a target with the same name loaded and enabled
// from the environment.
continue
}
subSysTarget := config.LoggerWebhookSubSys
if starget != config.Default {
subSysTarget = config.LoggerWebhookSubSys + config.SubSystemSeparator + starget
}
if err := config.CheckValidKeys(subSysTarget, kv, DefaultLoggerWebhookKVS); err != nil {
return cfg, err
}
enabled, err := config.ParseBool(kv.Get(config.Enable))
if err != nil {
return cfg, err
}
if !enabled {
continue
}
err = config.EnsureCertAndKey(kv.Get(ClientCert), kv.Get(ClientKey))
if err != nil {
return cfg, err
}
queueSize, err := strconv.Atoi(kv.Get(QueueSize))
if err != nil {
return cfg, err
}
if queueSize <= 0 {
return cfg, errors.New("invalid queue_size value")
}
cfg.HTTP[starget] = http.Config{
Enabled: true,
Endpoint: kv.Get(Endpoint),
AuthToken: kv.Get(AuthToken),
ClientCert: kv.Get(ClientCert),
ClientKey: kv.Get(ClientKey),
QueueSize: queueSize,
}
}
return cfg, nil
}
func lookupAuditWebhookConfig(scfg config.Config, cfg Config) (Config, error) {
var loggerAuditTargets []string
envs := env.List(EnvAuditWebhookEndpoint)
for _, k := range envs {
target := strings.TrimPrefix(k, EnvAuditWebhookEndpoint+config.Default)
if target == EnvAuditWebhookEndpoint {
target = config.Default
}
loggerAuditTargets = append(loggerAuditTargets, target)
}
for _, target := range loggerAuditTargets {
if v, ok := cfg.AuditWebhook[target]; ok && v.Enabled {
// This target is already enabled using the
// legacy environment variables, ignore.
continue
}
enableEnv := EnvAuditWebhookEnable
if target != config.Default {
enableEnv = EnvAuditWebhookEnable + config.Default + target
}
enable, err := config.ParseBool(env.Get(enableEnv, ""))
if err != nil || !enable {
continue
}
endpointEnv := EnvAuditWebhookEndpoint
if target != config.Default {
endpointEnv = EnvAuditWebhookEndpoint + config.Default + target
}
authTokenEnv := EnvAuditWebhookAuthToken
if target != config.Default {
authTokenEnv = EnvAuditWebhookAuthToken + config.Default + target
}
clientCertEnv := EnvAuditWebhookClientCert
if target != config.Default {
clientCertEnv = EnvAuditWebhookClientCert + config.Default + target
}
clientKeyEnv := EnvAuditWebhookClientKey
if target != config.Default {
clientKeyEnv = EnvAuditWebhookClientKey + config.Default + target
}
err = config.EnsureCertAndKey(env.Get(clientCertEnv, ""), env.Get(clientKeyEnv, ""))
if err != nil {
return cfg, err
}
queueSizeEnv := EnvAuditWebhookQueueSize
if target != config.Default {
queueSizeEnv = EnvAuditWebhookQueueSize + config.Default + target
}
queueSize, err := strconv.Atoi(env.Get(queueSizeEnv, "100000"))
if err != nil {
return cfg, err
}
if queueSize <= 0 {
return cfg, errors.New("invalid queue_size value")
}
cfg.AuditWebhook[target] = http.Config{
Enabled: true,
Endpoint: env.Get(endpointEnv, ""),
AuthToken: env.Get(authTokenEnv, ""),
ClientCert: env.Get(clientCertEnv, ""),
ClientKey: env.Get(clientKeyEnv, ""),
QueueSize: queueSize,
}
}
for starget, kv := range scfg[config.AuditWebhookSubSys] {
if l, ok := cfg.AuditWebhook[starget]; ok && l.Enabled {
// Ignore this audit config since another target
// with the same name is already loaded and enabled
// in the shell environment.
continue
}
subSysTarget := config.AuditWebhookSubSys
if starget != config.Default {
subSysTarget = config.AuditWebhookSubSys + config.SubSystemSeparator + starget
}
if err := config.CheckValidKeys(subSysTarget, kv, DefaultAuditWebhookKVS); err != nil {
return cfg, err
}
enabled, err := config.ParseBool(kv.Get(config.Enable))
if err != nil {
return cfg, err
}
if !enabled {
continue
}
err = config.EnsureCertAndKey(kv.Get(ClientCert), kv.Get(ClientKey))
if err != nil {
return cfg, err
}
queueSize, err := strconv.Atoi(kv.Get(QueueSize))
if err != nil {
return cfg, err
}
if queueSize <= 0 {
return cfg, errors.New("invalid queue_size value")
}
cfg.AuditWebhook[starget] = http.Config{
Enabled: true,
Endpoint: kv.Get(Endpoint),
AuthToken: kv.Get(AuthToken),
ClientCert: kv.Get(ClientCert),
ClientKey: kv.Get(ClientKey),
QueueSize: queueSize,
}
}
return cfg, nil
}
// LookupConfigForSubSys - lookup logger config, override with ENVs if set, for the given sub-system
func LookupConfigForSubSys(scfg config.Config, subSys string) (cfg Config, err error) {
switch subSys {
case config.LoggerWebhookSubSys:
cfg = lookupLegacyConfigForSubSys(config.LoggerWebhookSubSys)
if cfg, err = lookupLoggerWebhookConfig(scfg, cfg); err != nil {
return cfg, err
}
case config.AuditWebhookSubSys:
cfg = lookupLegacyConfigForSubSys(config.AuditWebhookSubSys)
if cfg, err = lookupAuditWebhookConfig(scfg, cfg); err != nil {
return cfg, err
}
case config.AuditKafkaSubSys:
if _, err = GetAuditKafka(scfg[config.AuditKafkaSubSys]); err != nil {
return cfg, err
}
}
return cfg, nil
}
// ValidateSubSysConfig - validates logger related config of given sub-system
func ValidateSubSysConfig(scfg config.Config, subSys string) error {
// Lookup for legacy environment variables first
_, err := LookupConfigForSubSys(scfg, subSys)
return err
}