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minio/pkg/madmin/info-commands.go

318 lines
9.6 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 (
"context"
"encoding/json"
"io/ioutil"
"net/http"
"time"
)
// BackendType - represents different backend types.
type BackendType int
// Enum for different backend types.
const (
Unknown BackendType = iota
// Filesystem backend.
FS
// Multi disk Erasure (single, distributed) backend.
Erasure
// Add your own backend.
)
// StorageInfo - represents total capacity of underlying storage.
type StorageInfo struct {
Disks []Disk
// Backend type.
Backend struct {
// Represents various backend types, currently on FS and Erasure.
Type BackendType
// Following fields are only meaningful if BackendType is Erasure.
OnlineDisks BackendDisks // Online disks during server startup.
OfflineDisks BackendDisks // Offline disks during server startup.
StandardSCData int // Data disks for currently configured Standard storage class.
StandardSCParity int // Parity disks for currently configured Standard storage class.
RRSCData int // Data disks for currently configured Reduced Redundancy storage class.
RRSCParity int // Parity disks for currently configured Reduced Redundancy storage class.
}
}
// BackendDisks - represents the map of endpoint-disks.
type BackendDisks map[string]int
// Sum - Return the sum of the disks in the endpoint-disk map.
func (d1 BackendDisks) Sum() (sum int) {
for _, count := range d1 {
sum += count
}
return sum
}
// Merge - Reduces two endpoint-disk maps.
func (d1 BackendDisks) Merge(d2 BackendDisks) BackendDisks {
if len(d2) == 0 {
d2 = make(BackendDisks)
}
for i1, v1 := range d1 {
if v2, ok := d2[i1]; ok {
d2[i1] = v2 + v1
continue
}
d2[i1] = v1
}
return d2
}
// StorageInfo - Connect to a minio server and call Storage Info Management API
// to fetch server's information represented by StorageInfo structure
func (adm *AdminClient) StorageInfo(ctx context.Context) (StorageInfo, error) {
resp, err := adm.executeMethod(ctx, http.MethodGet, requestData{relPath: adminAPIPrefix + "/storageinfo"})
defer closeResponse(resp)
if err != nil {
return StorageInfo{}, err
}
// Check response http status code
if resp.StatusCode != http.StatusOK {
return StorageInfo{}, httpRespToErrorResponse(resp)
}
// Unmarshal the server's json response
var storageInfo StorageInfo
respBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return StorageInfo{}, err
}
err = json.Unmarshal(respBytes, &storageInfo)
if err != nil {
return StorageInfo{}, err
}
return storageInfo, nil
}
// DataUsageInfo represents data usage of an Object API
type DataUsageInfo struct {
// LastUpdate is the timestamp of when the data usage info was last updated.
// This does not indicate a full scan.
LastUpdate time.Time `json:"lastUpdate"`
ObjectsCount uint64 `json:"objectsCount"`
ObjectsTotalSize uint64 `json:"objectsTotalSize"`
// ObjectsSizesHistogram contains information on objects across all buckets.
// See ObjectsHistogramIntervals.
ObjectsSizesHistogram map[string]uint64 `json:"objectsSizesHistogram"`
BucketsCount uint64 `json:"bucketsCount"`
// BucketsSizes is "bucket name" -> size.
BucketsSizes map[string]uint64 `json:"bucketsSizes"`
}
// DataUsageInfo - returns data usage of the current object API
func (adm *AdminClient) DataUsageInfo(ctx context.Context) (DataUsageInfo, error) {
resp, err := adm.executeMethod(ctx, http.MethodGet, requestData{relPath: adminAPIPrefix + "/datausageinfo"})
defer closeResponse(resp)
if err != nil {
return DataUsageInfo{}, err
}
// Check response http status code
if resp.StatusCode != http.StatusOK {
return DataUsageInfo{}, httpRespToErrorResponse(resp)
}
// Unmarshal the server's json response
var dataUsageInfo DataUsageInfo
respBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return DataUsageInfo{}, err
}
err = json.Unmarshal(respBytes, &dataUsageInfo)
if err != nil {
return DataUsageInfo{}, err
}
return dataUsageInfo, nil
}
// InfoMessage container to hold server admin related information.
type InfoMessage struct {
Mode string `json:"mode,omitempty"`
Domain []string `json:"domain,omitempty"`
Region string `json:"region,omitempty"`
SQSARN []string `json:"sqsARN,omitempty"`
DeploymentID string `json:"deploymentID,omitempty"`
Buckets Buckets `json:"buckets,omitempty"`
Objects Objects `json:"objects,omitempty"`
Usage Usage `json:"usage,omitempty"`
Services Services `json:"services,omitempty"`
Backend interface{} `json:"backend,omitempty"`
Servers []ServerProperties `json:"servers,omitempty"`
}
// Services contains different services information
type Services struct {
Vault Vault `json:"vault,omitempty"`
LDAP LDAP `json:"ldap,omitempty"`
Logger []Logger `json:"logger,omitempty"`
Audit []Audit `json:"audit,omitempty"`
Notifications []map[string][]TargetIDStatus `json:"notifications,omitempty"`
}
// Buckets contains the number of buckets
type Buckets struct {
Count uint64 `json:"count,omitempty"`
}
// Objects contains the number of objects
type Objects struct {
Count uint64 `json:"count,omitempty"`
}
// Usage contains the tottal size used
type Usage struct {
Size uint64 `json:"size,omitempty"`
}
// Vault - Fetches the Vault status
type Vault struct {
Status string `json:"status,omitempty"`
Encrypt string `json:"encryp,omitempty"`
Decrypt string `json:"decrypt,omitempty"`
}
// LDAP contains ldap status
type LDAP struct {
Status string `json:"status,omitempty"`
}
// Status of endpoint
type Status struct {
Status string `json:"status,omitempty"`
}
// Audit contains audit logger status
type Audit map[string]Status
// Logger contains logger status
type Logger map[string]Status
// TargetIDStatus containsid and status
type TargetIDStatus map[string]Status
// backendType - indicates the type of backend storage
type backendType string
const (
// FsType - Backend is FS Type
FsType = backendType("FS")
// ErasureType - Backend is Erasure type
ErasureType = backendType("Erasure")
)
// FSBackend contains specific FS storage information
type FSBackend struct {
Type backendType `json:"backendType,omitempty"`
}
// ErasureBackend contains specific erasure storage information
type ErasureBackend struct {
Type backendType `json:"backendType,omitempty"`
OnlineDisks int `json:"onlineDisks,omitempty"`
OfflineDisks int `json:"offlineDisks,omitempty"`
// Data disks for currently configured Standard storage class.
StandardSCData int `json:"standardSCData,omitempty"`
// Parity disks for currently configured Standard storage class.
StandardSCParity int `json:"standardSCParity,omitempty"`
// Data disks for currently configured Reduced Redundancy storage class.
RRSCData int `json:"rrSCData,omitempty"`
// Parity disks for currently configured Reduced Redundancy storage class.
RRSCParity int `json:"rrSCParity,omitempty"`
}
// ServerProperties holds server information
type ServerProperties struct {
State string `json:"state,omitempty"`
Endpoint string `json:"endpoint,omitempty"`
Uptime int64 `json:"uptime,omitempty"`
Version string `json:"version,omitempty"`
CommitID string `json:"commitID,omitempty"`
Network map[string]string `json:"network,omitempty"`
Disks []Disk `json:"disks,omitempty"`
}
// Disk holds Disk information
type Disk struct {
Endpoint string `json:"endpoint,omitempty"`
DrivePath string `json:"path,omitempty"`
State string `json:"state,omitempty"`
UUID string `json:"uuid,omitempty"`
Model string `json:"model,omitempty"`
TotalSpace uint64 `json:"totalspace,omitempty"`
UsedSpace uint64 `json:"usedspace,omitempty"`
AvailableSpace uint64 `json:"availspace,omitempty"`
ReadThroughput float64 `json:"readthroughput,omitempty"`
WriteThroughPut float64 `json:"writethroughput,omitempty"`
ReadLatency float64 `json:"readlatency,omitempty"`
WriteLatency float64 `json:"writelatency,omitempty"`
Utilization float64 `json:"utilization,omitempty"`
}
// ServerInfo - Connect to a minio server and call Server Admin Info Management API
// to fetch server's information represented by infoMessage structure
func (adm *AdminClient) ServerInfo(ctx context.Context) (InfoMessage, error) {
resp, err := adm.executeMethod(ctx,
http.MethodGet,
requestData{relPath: adminAPIPrefix + "/info"},
)
defer closeResponse(resp)
if err != nil {
return InfoMessage{}, err
}
// Check response http status code
if resp.StatusCode != http.StatusOK {
return InfoMessage{}, httpRespToErrorResponse(resp)
}
// Unmarshal the server's json response
var message InfoMessage
respBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return InfoMessage{}, err
}
err = json.Unmarshal(respBytes, &message)
if err != nil {
return InfoMessage{}, err
}
return message, nil
}