minio/cmd/logger/config.go

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/*
* MinIO Cloud Storage, (C) 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 logger
import (
"strings"
"github.com/minio/minio/cmd/config"
"github.com/minio/minio/pkg/env"
)
// Console logger target
type Console struct {
Enabled bool `json:"enabled"`
}
// HTTP logger target
type HTTP struct {
Enabled bool `json:"enabled"`
Endpoint string `json:"endpoint"`
AuthToken string `json:"authToken"`
}
// Config console and http logger targets
type Config struct {
Console Console `json:"console"`
HTTP map[string]HTTP `json:"http"`
Audit map[string]HTTP `json:"audit"`
}
// HTTP endpoint logger
const (
Endpoint = "endpoint"
AuthToken = "auth_token"
EnvLoggerHTTPEndpoint = "MINIO_LOGGER_HTTP_ENDPOINT"
EnvLoggerHTTPAuthToken = "MINIO_LOGGER_HTTP_AUTH_TOKEN"
EnvLoggerHTTPAuditEndpoint = "MINIO_LOGGER_HTTP_AUDIT_ENDPOINT"
EnvLoggerHTTPAuditAuthToken = "MINIO_LOGGER_HTTP_AUDIT_AUTH_TOKEN"
)
// Default KVS for loggerHTTP and loggerAuditHTTP
var (
DefaultKVS = config.KVS{
config.State: config.StateOff,
config.Comment: "This is a default HTTP logging configuration",
Endpoint: "",
AuthToken: "",
}
DefaultAuditKVS = config.KVS{
config.State: config.StateOff,
config.Comment: "This is a default HTTP Audit logging configuration",
Endpoint: "",
AuthToken: "",
}
)
// 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),
Audit: make(map[string]HTTP),
}
// Create an example HTTP logger
cfg.HTTP[config.Default] = HTTP{
Endpoint: "https://username:password@example.com/api",
}
// Create an example Audit logger
cfg.Audit[config.Default] = HTTP{
Endpoint: "https://username:password@example.com/api/audit",
}
return cfg
}
// LookupConfig - lookup logger config, override with ENVs if set.
func LookupConfig(scfg config.Config) (Config, error) {
cfg := NewConfig()
envs := env.List(EnvLoggerHTTPEndpoint)
var loggerTargets []string
for _, k := range envs {
target := strings.TrimPrefix(k, EnvLoggerHTTPEndpoint+config.Default)
if target == EnvLoggerHTTPEndpoint {
target = config.Default
}
loggerTargets = append(loggerTargets, target)
}
var loggerAuditTargets []string
envs = env.List(EnvLoggerHTTPAuditEndpoint)
for _, k := range envs {
target := strings.TrimPrefix(k, EnvLoggerHTTPAuditEndpoint+config.Default)
if target == EnvLoggerHTTPAuditEndpoint {
target = config.Default
}
loggerAuditTargets = append(loggerAuditTargets, target)
}
// List legacy ENVs if any.
envs = env.List(EnvAuditLoggerHTTPEndpoint)
for _, k := range envs {
target := strings.TrimPrefix(k, EnvAuditLoggerHTTPEndpoint+config.Default)
if target == EnvAuditLoggerHTTPEndpoint {
target = config.Default
}
loggerAuditTargets = append(loggerAuditTargets, target)
}
for starget, kv := range scfg[config.LoggerHTTPSubSys] {
subSysTarget := config.LoggerHTTPSubSys
if starget != config.Default {
subSysTarget = config.LoggerHTTPSubSys + ":" + starget
}
if err := config.CheckValidKeys(subSysTarget, kv, DefaultKVS); err != nil {
return cfg, err
}
enabled, err := config.ParseBool(kv.Get(config.State))
if err != nil {
return cfg, err
}
if !enabled {
continue
}
endpointEnv := EnvLoggerHTTPEndpoint
if starget != config.Default {
endpointEnv = EnvLoggerHTTPEndpoint + config.Default + starget
}
authTokenEnv := EnvLoggerHTTPAuthToken
if starget != config.Default {
authTokenEnv = EnvLoggerHTTPAuthToken + config.Default + starget
}
cfg.HTTP[starget] = HTTP{
Enabled: true,
Endpoint: env.Get(endpointEnv, kv.Get(Endpoint)),
AuthToken: env.Get(authTokenEnv, kv.Get(AuthToken)),
}
}
for starget, kv := range scfg[config.LoggerHTTPAuditSubSys] {
subSysTarget := config.LoggerHTTPAuditSubSys
if starget != config.Default {
subSysTarget = config.LoggerHTTPAuditSubSys + config.SubSystemSeparator + starget
}
if err := config.CheckValidKeys(subSysTarget, kv, DefaultAuditKVS); err != nil {
return cfg, err
}
enabled, err := config.ParseBool(kv.Get(config.State))
if err != nil {
return cfg, err
}
if !enabled {
continue
}
endpointEnv := EnvLoggerHTTPAuditEndpoint
if starget != config.Default {
endpointEnv = EnvLoggerHTTPAuditEndpoint + config.Default + starget
}
legacyEndpointEnv := EnvAuditLoggerHTTPEndpoint
if starget != config.Default {
legacyEndpointEnv = EnvAuditLoggerHTTPEndpoint + config.Default + starget
}
endpoint := env.Get(legacyEndpointEnv, "")
if endpoint == "" {
endpoint = env.Get(endpointEnv, kv.Get(Endpoint))
}
authTokenEnv := EnvLoggerHTTPAuditAuthToken
if starget != config.Default {
authTokenEnv = EnvLoggerHTTPAuditAuthToken + config.Default + starget
}
cfg.HTTP[starget] = HTTP{
Enabled: true,
Endpoint: endpoint,
AuthToken: env.Get(authTokenEnv, kv.Get(AuthToken)),
}
}
for _, target := range loggerTargets {
endpointEnv := EnvLoggerHTTPEndpoint
if target != config.Default {
endpointEnv = EnvLoggerHTTPEndpoint + config.Default + target
}
authTokenEnv := EnvLoggerHTTPAuthToken
if target != config.Default {
authTokenEnv = EnvLoggerHTTPAuthToken + config.Default + target
}
cfg.HTTP[target] = HTTP{
Enabled: true,
Endpoint: env.Get(endpointEnv, ""),
AuthToken: env.Get(authTokenEnv, ""),
}
}
for _, target := range loggerAuditTargets {
endpointEnv := EnvLoggerHTTPAuditEndpoint
if target != config.Default {
endpointEnv = EnvLoggerHTTPAuditEndpoint + config.Default + target
}
legacyEndpointEnv := EnvAuditLoggerHTTPEndpoint
if target != config.Default {
legacyEndpointEnv = EnvAuditLoggerHTTPEndpoint + config.Default + target
}
endpoint := env.Get(legacyEndpointEnv, "")
if endpoint == "" {
endpoint = env.Get(endpointEnv, "")
}
authTokenEnv := EnvLoggerHTTPAuditAuthToken
if target != config.Default {
authTokenEnv = EnvLoggerHTTPAuditAuthToken + config.Default + target
}
cfg.HTTP[target] = HTTP{
Enabled: true,
Endpoint: endpoint,
AuthToken: env.Get(authTokenEnv, ""),
}
}
return cfg, nil
}