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minio/cmd/config/api/api.go

91 lines
2.2 KiB

/*
* MinIO Cloud Storage, (C) 2020 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 api
import (
"encoding/json"
"errors"
"strconv"
"time"
"github.com/minio/minio/cmd/config"
"github.com/minio/minio/pkg/env"
)
const (
apiRequestsMax = "requests_max"
apiRequestsDeadline = "requests_deadline"
)
// DefaultKVS - default storage class config
var (
DefaultKVS = config.KVS{
config.KV{
Key: apiRequestsMax,
Value: "0",
},
config.KV{
Key: apiRequestsDeadline,
Value: "10s",
},
}
)
// Config storage class configuration
type Config struct {
APIRequestsMax int `json:"requests_max"`
APIRequestsDeadline time.Duration `json:"requests_deadline"`
}
// UnmarshalJSON - Validate SS and RRS parity when unmarshalling JSON.
func (sCfg *Config) UnmarshalJSON(data []byte) error {
type Alias Config
aux := &struct {
*Alias
}{
Alias: (*Alias)(sCfg),
}
return json.Unmarshal(data, &aux)
}
// LookupConfig - lookup api config and override with valid environment settings if any.
func LookupConfig(kvs config.KVS) (cfg Config, err error) {
if err = config.CheckValidKeys(config.APISubSys, kvs, DefaultKVS); err != nil {
return cfg, err
}
// Check environment variables parameters
requestsMax, err := strconv.Atoi(env.Get(config.EnvAPIRequestsMax, kvs.Get(apiRequestsMax)))
if err != nil {
return cfg, err
}
if requestsMax < 0 {
return cfg, errors.New("invalid API max requests value")
}
requestsDeadline, err := time.ParseDuration(env.Get(config.EnvAPIRequestsDeadline, kvs.Get(apiRequestsDeadline)))
if err != nil {
return cfg, err
}
cfg = Config{
APIRequestsMax: requestsMax,
APIRequestsDeadline: requestsDeadline,
}
return cfg, nil
}