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minio/pkg/madmin/config-commands.go

125 lines
3.0 KiB

/*
* Minio Cloud Storage, (C) 2017 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 madmin
import (
"bytes"
"encoding/json"
"io"
"io/ioutil"
"net/http"
"net/url"
)
const (
configQueryParam = "config"
)
// NodeSummary - represents the result of an operation part of
// set-config on a node.
type NodeSummary struct {
Name string `json:"name"`
ErrSet bool `json:"errSet"`
ErrMsg string `json:"errMsg"`
}
// SetConfigResult - represents detailed results of a set-config
// operation.
type SetConfigResult struct {
NodeResults []NodeSummary `json:"nodeResults"`
Status bool `json:"status"`
}
// GetConfig - returns the config.json of a minio setup.
func (adm *AdminClient) GetConfig() ([]byte, error) {
queryVal := make(url.Values)
queryVal.Set(configQueryParam, "")
hdrs := make(http.Header)
hdrs.Set(minioAdminOpHeader, "get")
reqData := requestData{
queryValues: queryVal,
customHeaders: hdrs,
}
// Execute GET on /?config to get config of a setup.
resp, err := adm.executeMethod("GET", reqData)
defer closeResponse(resp)
if err != nil {
return nil, err
}
if resp.StatusCode != http.StatusOK {
return nil, httpRespToErrorResponse(resp)
}
// Return the JSON marshalled bytes to user.
return ioutil.ReadAll(resp.Body)
}
// SetConfig - set config supplied as config.json for the setup.
func (adm *AdminClient) SetConfig(config io.Reader) (SetConfigResult, error) {
queryVal := url.Values{}
queryVal.Set(configQueryParam, "")
// Set x-minio-operation to set.
hdrs := make(http.Header)
hdrs.Set(minioAdminOpHeader, "set")
// Read config bytes to calculate MD5, SHA256 and content length.
configBytes, err := ioutil.ReadAll(config)
if err != nil {
return SetConfigResult{}, err
}
reqData := requestData{
queryValues: queryVal,
customHeaders: hdrs,
contentBody: bytes.NewReader(configBytes),
contentMD5Bytes: sumMD5(configBytes),
contentSHA256Bytes: sum256(configBytes),
}
// Execute PUT on /?config to set config.
resp, err := adm.executeMethod("PUT", reqData)
defer closeResponse(resp)
if err != nil {
return SetConfigResult{}, err
}
if resp.StatusCode != http.StatusOK {
return SetConfigResult{}, httpRespToErrorResponse(resp)
}
var result SetConfigResult
jsonBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return SetConfigResult{}, err
}
err = json.Unmarshal(jsonBytes, &result)
if err != nil {
return SetConfigResult{}, err
}
return result, nil
}