// Copyright (c) 2015-2022 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 .
package cmd
import (
"bytes"
"context"
crand "crypto/rand"
"crypto/rsa"
"crypto/subtle"
"crypto/x509"
"encoding/base64"
"encoding/json"
"encoding/pem"
"errors"
"fmt"
"hash/crc32"
"io"
"math"
"net/http"
"net/url"
"os"
"path"
"regexp"
"runtime"
"sort"
"strconv"
"strings"
"sync/atomic"
"time"
"github.com/dustin/go-humanize"
"github.com/klauspost/compress/zip"
"github.com/minio/madmin-go/v3"
"github.com/minio/madmin-go/v3/estream"
"github.com/minio/minio-go/v7/pkg/set"
"github.com/minio/minio/internal/dsync"
"github.com/minio/minio/internal/handlers"
xhttp "github.com/minio/minio/internal/http"
"github.com/minio/minio/internal/kms"
"github.com/minio/minio/internal/logger"
"github.com/minio/mux"
iampolicy "github.com/minio/pkg/iam/policy"
"github.com/minio/pkg/logger/message/log"
xnet "github.com/minio/pkg/net"
"github.com/secure-io/sio-go"
)
const (
maxEConfigJSONSize = 262272
kubernetesVersionEndpoint = "https://kubernetes.default.svc/version"
)
// Only valid query params for mgmt admin APIs.
const (
mgmtBucket = "bucket"
mgmtPrefix = "prefix"
mgmtClientToken = "clientToken"
mgmtForceStart = "forceStart"
mgmtForceStop = "forceStop"
)
// ServerUpdateHandler - POST /minio/admin/v3/update?updateURL={updateURL}
// ----------
// updates all minio servers and restarts them gracefully.
func (a adminAPIHandlers) ServerUpdateHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ServerUpdateAdminAction)
if objectAPI == nil {
return
}
if globalInplaceUpdateDisabled {
// if MINIO_UPDATE=off - inplace update is disabled, mostly in containers.
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL)
return
}
vars := mux.Vars(r)
updateURL := vars["updateURL"]
mode := getMinioMode()
if updateURL == "" {
updateURL = minioReleaseInfoURL
if runtime.GOOS == globalWindowsOSName {
updateURL = minioReleaseWindowsInfoURL
}
}
u, err := url.Parse(updateURL)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
content, err := downloadReleaseURL(u, updateTimeout, mode)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
sha256Sum, lrTime, releaseInfo, err := parseReleaseData(content)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
u.Path = path.Dir(u.Path) + SlashSeparator + releaseInfo
crTime, err := GetCurrentReleaseTime()
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
if lrTime.Sub(crTime) <= 0 {
updateStatus := madmin.ServerUpdateStatus{
CurrentVersion: Version,
UpdatedVersion: Version,
}
// Marshal API response
jsonBytes, err := json.Marshal(updateStatus)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, jsonBytes)
return
}
// Download Binary Once
reader, err := downloadBinary(u, mode)
if err != nil {
logger.LogIf(ctx, fmt.Errorf("server update failed with %w", err))
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Push binary to other servers
for _, nerr := range globalNotificationSys.VerifyBinary(ctx, u, sha256Sum, releaseInfo, reader) {
if nerr.Err != nil {
err := AdminError{
Code: AdminUpdateApplyFailure,
Message: nerr.Err.Error(),
StatusCode: http.StatusInternalServerError,
}
logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
logger.LogIf(ctx, fmt.Errorf("server update failed with %w", err))
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
}
err = verifyBinary(u, sha256Sum, releaseInfo, mode, reader)
if err != nil {
logger.LogIf(ctx, fmt.Errorf("server update failed with %w", err))
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
for _, nerr := range globalNotificationSys.CommitBinary(ctx) {
if nerr.Err != nil {
err := AdminError{
Code: AdminUpdateApplyFailure,
Message: nerr.Err.Error(),
StatusCode: http.StatusInternalServerError,
}
logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
logger.LogIf(ctx, fmt.Errorf("server update failed with %w", err))
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
}
err = commitBinary()
if err != nil {
logger.LogIf(ctx, fmt.Errorf("server update failed with %w", err))
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
updateStatus := madmin.ServerUpdateStatus{
CurrentVersion: Version,
UpdatedVersion: lrTime.Format(minioReleaseTagTimeLayout),
}
// Marshal API response
jsonBytes, err := json.Marshal(updateStatus)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, jsonBytes)
// Notify all other MinIO peers signal service.
for _, nerr := range globalNotificationSys.SignalService(serviceRestart) {
if nerr.Err != nil {
logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
logger.LogIf(ctx, nerr.Err)
}
}
globalServiceSignalCh <- serviceRestart
}
// ServiceHandler - POST /minio/admin/v3/service?action={action}
// ----------
// Supports following actions:
// - restart (restarts all the MinIO instances in a setup)
// - stop (stops all the MinIO instances in a setup)
// - freeze (freezes all incoming S3 API calls)
// - unfreeze (unfreezes previously frozen S3 API calls)
func (a adminAPIHandlers) ServiceHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
vars := mux.Vars(r)
action := vars["action"]
var serviceSig serviceSignal
switch madmin.ServiceAction(action) {
case madmin.ServiceActionRestart:
serviceSig = serviceRestart
case madmin.ServiceActionStop:
serviceSig = serviceStop
case madmin.ServiceActionFreeze:
serviceSig = serviceFreeze
case madmin.ServiceActionUnfreeze:
serviceSig = serviceUnFreeze
default:
logger.LogIf(ctx, fmt.Errorf("Unrecognized service action %s requested", action), logger.Application)
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMalformedPOSTRequest), r.URL)
return
}
var objectAPI ObjectLayer
switch serviceSig {
case serviceRestart:
objectAPI, _ = validateAdminReq(ctx, w, r, iampolicy.ServiceRestartAdminAction)
case serviceStop:
objectAPI, _ = validateAdminReq(ctx, w, r, iampolicy.ServiceStopAdminAction)
case serviceFreeze, serviceUnFreeze:
objectAPI, _ = validateAdminReq(ctx, w, r, iampolicy.ServiceFreezeAdminAction)
}
if objectAPI == nil {
return
}
// Notify all other MinIO peers signal service.
for _, nerr := range globalNotificationSys.SignalService(serviceSig) {
if nerr.Err != nil {
logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
logger.LogIf(ctx, nerr.Err)
}
}
// Reply to the client before restarting, stopping MinIO server.
writeSuccessResponseHeadersOnly(w)
switch serviceSig {
case serviceFreeze:
freezeServices()
case serviceUnFreeze:
unfreezeServices()
case serviceRestart, serviceStop:
globalServiceSignalCh <- serviceSig
}
}
// ServerProperties holds some server information such as, version, region
// uptime, etc..
type ServerProperties struct {
Uptime int64 `json:"uptime"`
Version string `json:"version"`
CommitID string `json:"commitID"`
DeploymentID string `json:"deploymentID"`
Region string `json:"region"`
SQSARN []string `json:"sqsARN"`
}
// serverConnStats holds transferred bytes from/to the server
type serverConnStats struct {
internodeInputBytes uint64
internodeOutputBytes uint64
s3InputBytes uint64
s3OutputBytes uint64
}
// ServerHTTPAPIStats holds total number of HTTP operations from/to the server,
// including the average duration the call was spent.
type ServerHTTPAPIStats struct {
APIStats map[string]int `json:"apiStats"`
}
// ServerHTTPStats holds all type of http operations performed to/from the server
// including their average execution time.
type ServerHTTPStats struct {
S3RequestsInQueue int32 `json:"s3RequestsInQueue"`
S3RequestsIncoming uint64 `json:"s3RequestsIncoming"`
CurrentS3Requests ServerHTTPAPIStats `json:"currentS3Requests"`
TotalS3Requests ServerHTTPAPIStats `json:"totalS3Requests"`
TotalS3Errors ServerHTTPAPIStats `json:"totalS3Errors"`
TotalS35xxErrors ServerHTTPAPIStats `json:"totalS35xxErrors"`
TotalS34xxErrors ServerHTTPAPIStats `json:"totalS34xxErrors"`
TotalS3Canceled ServerHTTPAPIStats `json:"totalS3Canceled"`
TotalS3RejectedAuth uint64 `json:"totalS3RejectedAuth"`
TotalS3RejectedTime uint64 `json:"totalS3RejectedTime"`
TotalS3RejectedHeader uint64 `json:"totalS3RejectedHeader"`
TotalS3RejectedInvalid uint64 `json:"totalS3RejectedInvalid"`
}
// StorageInfoHandler - GET /minio/admin/v3/storageinfo
// ----------
// Get server information
func (a adminAPIHandlers) StorageInfoHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.StorageInfoAdminAction)
if objectAPI == nil {
return
}
storageInfo := objectAPI.StorageInfo(ctx)
// Collect any disk healing.
healing, _ := getAggregatedBackgroundHealState(ctx, nil)
healDisks := make(map[string]struct{}, len(healing.HealDisks))
for _, disk := range healing.HealDisks {
healDisks[disk] = struct{}{}
}
// find all disks which belong to each respective endpoints
for i, disk := range storageInfo.Disks {
if _, ok := healDisks[disk.Endpoint]; ok {
storageInfo.Disks[i].Healing = true
}
}
// Marshal API response
jsonBytes, err := json.Marshal(storageInfo)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Reply with storage information (across nodes in a
// distributed setup) as json.
writeSuccessResponseJSON(w, jsonBytes)
}
// MetricsHandler - GET /minio/admin/v3/metrics
// ----------
// Get realtime server metrics
func (a adminAPIHandlers) MetricsHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ServerInfoAdminAction)
if objectAPI == nil {
return
}
const defaultMetricsInterval = time.Second
interval, err := time.ParseDuration(r.Form.Get("interval"))
if err != nil || interval < time.Second {
interval = defaultMetricsInterval
}
n, err := strconv.Atoi(r.Form.Get("n"))
if err != nil || n <= 0 {
n = math.MaxInt32
}
var types madmin.MetricType
if t, _ := strconv.ParseUint(r.Form.Get("types"), 10, 64); t != 0 {
types = madmin.MetricType(t)
} else {
types = madmin.MetricsAll
}
disks := strings.Split(r.Form.Get("disks"), ",")
byDisk := strings.EqualFold(r.Form.Get("by-disk"), "true")
var diskMap map[string]struct{}
if len(disks) > 0 && disks[0] != "" {
diskMap = make(map[string]struct{}, len(disks))
for _, k := range disks {
if k != "" {
diskMap[k] = struct{}{}
}
}
}
jobID := r.Form.Get("by-jobID")
hosts := strings.Split(r.Form.Get("hosts"), ",")
byHost := strings.EqualFold(r.Form.Get("by-host"), "true")
var hostMap map[string]struct{}
if len(hosts) > 0 && hosts[0] != "" {
hostMap = make(map[string]struct{}, len(hosts))
for _, k := range hosts {
if k != "" {
hostMap[k] = struct{}{}
}
}
}
dID := r.Form.Get("by-depID")
done := ctx.Done()
ticker := time.NewTicker(interval)
defer ticker.Stop()
w.Header().Set(xhttp.ContentType, string(mimeJSON))
enc := json.NewEncoder(w)
for n > 0 {
var m madmin.RealtimeMetrics
mLocal := collectLocalMetrics(types, collectMetricsOpts{
hosts: hostMap,
disks: diskMap,
jobID: jobID,
depID: dID,
})
m.Merge(&mLocal)
// Allow half the interval for collecting remote...
cctx, cancel := context.WithTimeout(ctx, interval/2)
mRemote := collectRemoteMetrics(cctx, types, collectMetricsOpts{
hosts: hostMap,
disks: diskMap,
jobID: jobID,
depID: dID,
})
cancel()
m.Merge(&mRemote)
if !byHost {
m.ByHost = nil
}
if !byDisk {
m.ByDisk = nil
}
m.Final = n <= 1
// Marshal API reesponse
if err := enc.Encode(&m); err != nil {
n = 0
}
n--
if n <= 0 {
break
}
// Flush before waiting for next...
w.(http.Flusher).Flush()
select {
case <-ticker.C:
case <-done:
return
}
}
}
// DataUsageInfoHandler - GET /minio/admin/v3/datausage
// ----------
// Get server/cluster data usage info
func (a adminAPIHandlers) DataUsageInfoHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.DataUsageInfoAdminAction)
if objectAPI == nil {
return
}
dataUsageInfo, err := loadDataUsageFromBackend(ctx, objectAPI)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
dataUsageInfoJSON, err := json.Marshal(dataUsageInfo)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, dataUsageInfoJSON)
}
func lriToLockEntry(l lockRequesterInfo, now time.Time, resource, server string) *madmin.LockEntry {
entry := &madmin.LockEntry{
Timestamp: l.Timestamp,
Elapsed: now.Sub(l.Timestamp),
Resource: resource,
ServerList: []string{server},
Source: l.Source,
Owner: l.Owner,
ID: l.UID,
Quorum: l.Quorum,
}
if l.Writer {
entry.Type = "WRITE"
} else {
entry.Type = "READ"
}
return entry
}
func topLockEntries(peerLocks []*PeerLocks, stale bool) madmin.LockEntries {
now := time.Now().UTC()
entryMap := make(map[string]*madmin.LockEntry)
toEntry := func(lri lockRequesterInfo) string {
return fmt.Sprintf("%s/%s", lri.Name, lri.UID)
}
for _, peerLock := range peerLocks {
if peerLock == nil {
continue
}
for k, v := range peerLock.Locks {
for _, lockReqInfo := range v {
if val, ok := entryMap[toEntry(lockReqInfo)]; ok {
val.ServerList = append(val.ServerList, peerLock.Addr)
} else {
entryMap[toEntry(lockReqInfo)] = lriToLockEntry(lockReqInfo, now, k, peerLock.Addr)
}
}
}
}
var lockEntries madmin.LockEntries
for _, v := range entryMap {
if stale {
lockEntries = append(lockEntries, *v)
continue
}
if len(v.ServerList) >= v.Quorum {
lockEntries = append(lockEntries, *v)
}
}
sort.Sort(lockEntries)
return lockEntries
}
// PeerLocks holds server information result of one node
type PeerLocks struct {
Addr string
Locks map[string][]lockRequesterInfo
}
// ForceUnlockHandler force unlocks requested resource
func (a adminAPIHandlers) ForceUnlockHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ForceUnlockAdminAction)
if objectAPI == nil {
return
}
z, ok := objectAPI.(*erasureServerPools)
if !ok {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
return
}
vars := mux.Vars(r)
var args dsync.LockArgs
var lockers []dsync.NetLocker
for _, path := range strings.Split(vars["paths"], ",") {
if path == "" {
continue
}
args.Resources = append(args.Resources, path)
}
for _, lks := range z.serverPools[0].erasureLockers {
lockers = append(lockers, lks...)
}
for _, locker := range lockers {
locker.ForceUnlock(ctx, args)
}
}
// TopLocksHandler Get list of locks in use
func (a adminAPIHandlers) TopLocksHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.TopLocksAdminAction)
if objectAPI == nil {
return
}
count := 10 // by default list only top 10 entries
if countStr := r.Form.Get("count"); countStr != "" {
var err error
count, err = strconv.Atoi(countStr)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
}
stale := r.Form.Get("stale") == "true" // list also stale locks
peerLocks := globalNotificationSys.GetLocks(ctx, r)
topLocks := topLockEntries(peerLocks, stale)
// Marshal API response upto requested count.
if len(topLocks) > count && count > 0 {
topLocks = topLocks[:count]
}
jsonBytes, err := json.Marshal(topLocks)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Reply with storage information (across nodes in a
// distributed setup) as json.
writeSuccessResponseJSON(w, jsonBytes)
}
// StartProfilingResult contains the status of the starting
// profiling action in a given server - deprecated API
type StartProfilingResult struct {
NodeName string `json:"nodeName"`
Success bool `json:"success"`
Error string `json:"error"`
}
// StartProfilingHandler - POST /minio/admin/v3/profiling/start?profilerType={profilerType}
// ----------
// Enable server profiling
func (a adminAPIHandlers) StartProfilingHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
// Validate request signature.
_, adminAPIErr := checkAdminRequestAuth(ctx, r, iampolicy.ProfilingAdminAction, "")
if adminAPIErr != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
return
}
if globalNotificationSys == nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
return
}
vars := mux.Vars(r)
profiles := strings.Split(vars["profilerType"], ",")
thisAddr, err := xnet.ParseHost(globalLocalNodeName)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
globalProfilerMu.Lock()
defer globalProfilerMu.Unlock()
if globalProfiler == nil {
globalProfiler = make(map[string]minioProfiler, 10)
}
// Stop profiler of all types if already running
for k, v := range globalProfiler {
for _, p := range profiles {
if p == k {
v.Stop()
delete(globalProfiler, k)
}
}
}
// Start profiling on remote servers.
var hostErrs []NotificationPeerErr
for _, profiler := range profiles {
hostErrs = append(hostErrs, globalNotificationSys.StartProfiling(profiler)...)
// Start profiling locally as well.
prof, err := startProfiler(profiler)
if err != nil {
hostErrs = append(hostErrs, NotificationPeerErr{
Host: *thisAddr,
Err: err,
})
} else {
globalProfiler[profiler] = prof
hostErrs = append(hostErrs, NotificationPeerErr{
Host: *thisAddr,
})
}
}
var startProfilingResult []StartProfilingResult
for _, nerr := range hostErrs {
result := StartProfilingResult{NodeName: nerr.Host.String()}
if nerr.Err != nil {
result.Error = nerr.Err.Error()
} else {
result.Success = true
}
startProfilingResult = append(startProfilingResult, result)
}
// Create JSON result and send it to the client
startProfilingResultInBytes, err := json.Marshal(startProfilingResult)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, startProfilingResultInBytes)
}
// ProfileHandler - POST /minio/admin/v3/profile/?profilerType={profilerType}
// ----------
// Enable server profiling
func (a adminAPIHandlers) ProfileHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
// Validate request signature.
_, adminAPIErr := checkAdminRequestAuth(ctx, r, iampolicy.ProfilingAdminAction, "")
if adminAPIErr != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
return
}
if globalNotificationSys == nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
return
}
profileStr := r.Form.Get("profilerType")
profiles := strings.Split(profileStr, ",")
duration := time.Minute
if dstr := r.Form.Get("duration"); dstr != "" {
var err error
duration, err = time.ParseDuration(dstr)
if err != nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
return
}
}
// read request body
io.CopyN(io.Discard, r.Body, 1)
globalProfilerMu.Lock()
if globalProfiler == nil {
globalProfiler = make(map[string]minioProfiler, 10)
}
// Stop profiler of all types if already running
for k, v := range globalProfiler {
v.Stop()
delete(globalProfiler, k)
}
// Start profiling on remote servers.
for _, profiler := range profiles {
globalNotificationSys.StartProfiling(profiler)
// Start profiling locally as well.
prof, err := startProfiler(profiler)
if err == nil {
globalProfiler[profiler] = prof
}
}
globalProfilerMu.Unlock()
timer := time.NewTimer(duration)
defer timer.Stop()
for {
select {
case <-ctx.Done():
globalProfilerMu.Lock()
defer globalProfilerMu.Unlock()
for k, v := range globalProfiler {
v.Stop()
delete(globalProfiler, k)
}
return
case <-timer.C:
if !globalNotificationSys.DownloadProfilingData(ctx, w) {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminProfilerNotEnabled), r.URL)
return
}
return
}
}
}
// dummyFileInfo represents a dummy representation of a profile data file
// present only in memory, it helps to generate the zip stream.
type dummyFileInfo struct {
name string
size int64
mode os.FileMode
modTime time.Time
isDir bool
sys interface{}
}
func (f dummyFileInfo) Name() string { return f.name }
func (f dummyFileInfo) Size() int64 { return f.size }
func (f dummyFileInfo) Mode() os.FileMode { return f.mode }
func (f dummyFileInfo) ModTime() time.Time { return f.modTime }
func (f dummyFileInfo) IsDir() bool { return f.isDir }
func (f dummyFileInfo) Sys() interface{} { return f.sys }
// DownloadProfilingHandler - POST /minio/admin/v3/profiling/download
// ----------
// Download profiling information of all nodes in a zip format - deprecated API
func (a adminAPIHandlers) DownloadProfilingHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
// Validate request signature.
_, adminAPIErr := checkAdminRequestAuth(ctx, r, iampolicy.ProfilingAdminAction, "")
if adminAPIErr != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
return
}
if globalNotificationSys == nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
return
}
if !globalNotificationSys.DownloadProfilingData(ctx, w) {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminProfilerNotEnabled), r.URL)
return
}
}
type healInitParams struct {
bucket, objPrefix string
hs madmin.HealOpts
clientToken string
forceStart, forceStop bool
}
// extractHealInitParams - Validates params for heal init API.
func extractHealInitParams(vars map[string]string, qParms url.Values, r io.Reader) (hip healInitParams, err APIErrorCode) {
hip.bucket = vars[mgmtBucket]
hip.objPrefix = vars[mgmtPrefix]
if hip.bucket == "" {
if hip.objPrefix != "" {
// Bucket is required if object-prefix is given
err = ErrHealMissingBucket
return
}
} else if isReservedOrInvalidBucket(hip.bucket, false) {
err = ErrInvalidBucketName
return
}
// empty prefix is valid.
if !IsValidObjectPrefix(hip.objPrefix) {
err = ErrInvalidObjectName
return
}
if len(qParms[mgmtClientToken]) > 0 {
hip.clientToken = qParms[mgmtClientToken][0]
}
if _, ok := qParms[mgmtForceStart]; ok {
hip.forceStart = true
}
if _, ok := qParms[mgmtForceStop]; ok {
hip.forceStop = true
}
// Invalid request conditions:
//
// Cannot have both forceStart and forceStop in the same
// request; If clientToken is provided, request can only be
// to continue receiving logs, so it cannot be start or
// stop;
if (hip.forceStart && hip.forceStop) ||
(hip.clientToken != "" && (hip.forceStart || hip.forceStop)) {
err = ErrInvalidRequest
return
}
// ignore body if clientToken is provided
if hip.clientToken == "" {
jerr := json.NewDecoder(r).Decode(&hip.hs)
if jerr != nil {
logger.LogIf(GlobalContext, jerr, logger.Application)
err = ErrRequestBodyParse
return
}
}
err = ErrNone
return
}
// HealHandler - POST /minio/admin/v3/heal/
// -----------
// Start heal processing and return heal status items.
//
// On a successful heal sequence start, a unique client token is
// returned. Subsequent requests to this endpoint providing the client
// token will receive heal status records from the running heal
// sequence.
//
// If no client token is provided, and a heal sequence is in progress
// an error is returned with information about the running heal
// sequence. However, if the force-start flag is provided, the server
// aborts the running heal sequence and starts a new one.
func (a adminAPIHandlers) HealHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.HealAdminAction)
if objectAPI == nil {
return
}
hip, errCode := extractHealInitParams(mux.Vars(r), r.Form, r.Body)
if errCode != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(errCode), r.URL)
return
}
// Analyze the heal token and route the request accordingly
token, success := proxyRequestByToken(ctx, w, r, hip.clientToken)
if success {
return
}
hip.clientToken = token
// if request was not successful, try this server locally if token
// is not found the call will fail anyways. if token is empty
// try this server to generate a new token.
type healResp struct {
respBytes []byte
apiErr APIError
errBody string
}
// Define a closure to start sending whitespace to client
// after 10s unless a response item comes in
keepConnLive := func(w http.ResponseWriter, r *http.Request, respCh chan healResp) {
ticker := time.NewTicker(time.Second * 10)
defer ticker.Stop()
started := false
forLoop:
for {
select {
case <-r.Context().Done():
return
case <-ticker.C:
if !started {
// Start writing response to client
started = true
setCommonHeaders(w)
setEventStreamHeaders(w)
// Set 200 OK status
w.WriteHeader(200)
}
// Send whitespace and keep connection open
if _, err := w.Write([]byte(" ")); err != nil {
return
}
w.(http.Flusher).Flush()
case hr := <-respCh:
switch hr.apiErr {
case noError:
if started {
if _, err := w.Write(hr.respBytes); err != nil {
return
}
w.(http.Flusher).Flush()
} else {
writeSuccessResponseJSON(w, hr.respBytes)
}
default:
var errorRespJSON []byte
if hr.errBody == "" {
errorRespJSON = encodeResponseJSON(getAPIErrorResponse(ctx, hr.apiErr,
r.URL.Path, w.Header().Get(xhttp.AmzRequestID),
w.Header().Get(xhttp.AmzRequestHostID)))
} else {
errorRespJSON = encodeResponseJSON(APIErrorResponse{
Code: hr.apiErr.Code,
Message: hr.errBody,
Resource: r.URL.Path,
RequestID: w.Header().Get(xhttp.AmzRequestID),
HostID: globalDeploymentID,
})
}
if !started {
setCommonHeaders(w)
w.Header().Set(xhttp.ContentType, string(mimeJSON))
w.WriteHeader(hr.apiErr.HTTPStatusCode)
}
if _, err := w.Write(errorRespJSON); err != nil {
return
}
w.(http.Flusher).Flush()
}
break forLoop
}
}
}
healPath := pathJoin(hip.bucket, hip.objPrefix)
if hip.clientToken == "" && !hip.forceStart && !hip.forceStop {
nh, exists := globalAllHealState.getHealSequence(healPath)
if exists && !nh.hasEnded() && len(nh.currentStatus.Items) > 0 {
clientToken := nh.clientToken
if globalIsDistErasure {
clientToken = fmt.Sprintf("%s:%d", nh.clientToken, GetProxyEndpointLocalIndex(globalProxyEndpoints))
}
b, err := json.Marshal(madmin.HealStartSuccess{
ClientToken: clientToken,
ClientAddress: nh.clientAddress,
StartTime: nh.startTime,
})
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Client token not specified but a heal sequence exists on a path,
// Send the token back to client.
writeSuccessResponseJSON(w, b)
return
}
}
if hip.clientToken != "" && !hip.forceStart && !hip.forceStop {
// Since clientToken is given, fetch heal status from running
// heal sequence.
respBytes, errCode := globalAllHealState.PopHealStatusJSON(
healPath, hip.clientToken)
if errCode != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(errCode), r.URL)
} else {
writeSuccessResponseJSON(w, respBytes)
}
return
}
respCh := make(chan healResp)
switch {
case hip.forceStop:
go func() {
respBytes, apiErr := globalAllHealState.stopHealSequence(healPath)
hr := healResp{respBytes: respBytes, apiErr: apiErr}
respCh <- hr
}()
case hip.clientToken == "":
nh := newHealSequence(GlobalContext, hip.bucket, hip.objPrefix, handlers.GetSourceIP(r), hip.hs, hip.forceStart)
go func() {
respBytes, apiErr, errMsg := globalAllHealState.LaunchNewHealSequence(nh, objectAPI)
hr := healResp{respBytes, apiErr, errMsg}
respCh <- hr
}()
}
// Due to the force-starting functionality, the Launch
// call above can take a long time - to keep the
// connection alive, we start sending whitespace
keepConnLive(w, r, respCh)
}
// getAggregatedBackgroundHealState returns the heal state of disks.
// If no ObjectLayer is provided no set status is returned.
func getAggregatedBackgroundHealState(ctx context.Context, o ObjectLayer) (madmin.BgHealState, error) {
// Get local heal status first
bgHealStates, ok := getLocalBackgroundHealStatus(ctx, o)
if !ok {
return bgHealStates, errServerNotInitialized
}
if globalIsDistErasure {
// Get heal status from other peers
peersHealStates, nerrs := globalNotificationSys.BackgroundHealStatus()
var errCount int
for _, nerr := range nerrs {
if nerr.Err != nil {
logger.LogIf(ctx, nerr.Err)
errCount++
}
}
if errCount == len(nerrs) {
return madmin.BgHealState{}, fmt.Errorf("all remote servers failed to report heal status, cluster is unhealthy")
}
bgHealStates.Merge(peersHealStates...)
}
return bgHealStates, nil
}
func (a adminAPIHandlers) BackgroundHealStatusHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.HealAdminAction)
if objectAPI == nil {
return
}
aggregateHealStateResult, err := getAggregatedBackgroundHealState(r.Context(), objectAPI)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
if err := json.NewEncoder(w).Encode(aggregateHealStateResult); err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
}
// SitePerfHandler - measures network throughput between site replicated setups
func (a adminAPIHandlers) SitePerfHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.HealthInfoAdminAction)
if objectAPI == nil {
return
}
if !globalSiteReplicationSys.isEnabled() {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
return
}
nsLock := objectAPI.NewNSLock(minioMetaBucket, "site-net-perf")
lkctx, err := nsLock.GetLock(ctx, globalOperationTimeout)
if err != nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(toAPIErrorCode(ctx, err)), r.URL)
return
}
defer nsLock.Unlock(lkctx)
durationStr := r.Form.Get(peerRESTDuration)
duration, err := time.ParseDuration(durationStr)
if err != nil {
duration = globalNetPerfMinDuration
}
if duration < globalNetPerfMinDuration {
// We need sample size of minimum 10 secs.
duration = globalNetPerfMinDuration
}
duration = duration.Round(time.Second)
results, err := globalSiteReplicationSys.Netperf(ctx, duration)
if err != nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(toAPIErrorCode(ctx, err)), r.URL)
return
}
enc := json.NewEncoder(w)
if err := enc.Encode(results); err != nil {
return
}
}
// ClientDevNullExtraTime - return extratime for last devnull
// [POST] /minio/admin/v3/speedtest/client/devnull/extratime
func (a adminAPIHandlers) ClientDevNullExtraTime(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.BandwidthMonitorAction)
if objectAPI == nil {
return
}
enc := json.NewEncoder(w)
if err := enc.Encode(madmin.ClientPerfExtraTime{TimeSpent: globalLastClientPerfExtraTime}); err != nil {
return
}
}
// ClientDevNull - everything goes to io.Discard
// [POST] /minio/admin/v3/speedtest/client/devnull
func (a adminAPIHandlers) ClientDevNull(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
timeStart := time.Now()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.BandwidthMonitorAction)
if objectAPI == nil {
return
}
nsLock := objectAPI.NewNSLock(minioMetaBucket, "client-perf")
lkctx, err := nsLock.GetLock(ctx, globalOperationTimeout)
if err != nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(toAPIErrorCode(ctx, err)), r.URL)
return
}
ctx = lkctx.Context()
defer nsLock.Unlock(lkctx)
timeEnd := time.Now()
atomic.SwapInt64(&globalLastClientPerfExtraTime, timeEnd.Sub(timeStart).Nanoseconds())
ctx, cancel := context.WithTimeout(ctx, madmin.MaxClientPerfTimeout)
defer cancel()
totalRx := int64(0)
connectTime := time.Now()
for {
n, err := io.CopyN(io.Discard, r.Body, 128*humanize.KiByte)
if err != nil && err != io.EOF && err != io.ErrUnexpectedEOF {
// would mean the network is not stable. Logging here will help in debugging network issues.
if time.Since(connectTime) < (globalNetPerfMinDuration - time.Second) {
logger.LogIf(ctx, err)
}
}
totalRx += n
if err != nil || ctx.Err() != nil || totalRx > 100*humanize.GiByte {
break
}
}
w.WriteHeader(http.StatusOK)
}
// NetperfHandler - perform mesh style network throughput test
func (a adminAPIHandlers) NetperfHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.HealthInfoAdminAction)
if objectAPI == nil {
return
}
if !globalIsDistErasure {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
return
}
nsLock := objectAPI.NewNSLock(minioMetaBucket, "netperf")
lkctx, err := nsLock.GetLock(ctx, globalOperationTimeout)
if err != nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(toAPIErrorCode(ctx, err)), r.URL)
return
}
defer nsLock.Unlock(lkctx)
durationStr := r.Form.Get(peerRESTDuration)
duration, err := time.ParseDuration(durationStr)
if err != nil {
duration = globalNetPerfMinDuration
}
if duration < globalNetPerfMinDuration {
// We need sample size of minimum 10 secs.
duration = globalNetPerfMinDuration
}
duration = duration.Round(time.Second)
results := globalNotificationSys.Netperf(ctx, duration)
enc := json.NewEncoder(w)
if err := enc.Encode(madmin.NetperfResult{NodeResults: results}); err != nil {
return
}
}
// ObjectSpeedTestHandler - reports maximum speed of a cluster by performing PUT and
// GET operations on the server, supports auto tuning by default by automatically
// increasing concurrency and stopping when we have reached the limits on the
// system.
func (a adminAPIHandlers) ObjectSpeedTestHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.HealthInfoAdminAction)
if objectAPI == nil {
return
}
sizeStr := r.Form.Get(peerRESTSize)
durationStr := r.Form.Get(peerRESTDuration)
concurrentStr := r.Form.Get(peerRESTConcurrent)
storageClass := strings.TrimSpace(r.Form.Get(peerRESTStorageClass))
customBucket := strings.TrimSpace(r.Form.Get(peerRESTBucket))
autotune := r.Form.Get("autotune") == "true"
noClear := r.Form.Get("noclear") == "true"
size, err := strconv.Atoi(sizeStr)
if err != nil {
size = 64 * humanize.MiByte
}
concurrent, err := strconv.Atoi(concurrentStr)
if err != nil {
concurrent = 32
}
duration, err := time.ParseDuration(durationStr)
if err != nil {
duration = time.Second * 10
}
storageInfo := objectAPI.StorageInfo(ctx)
sufficientCapacity, canAutotune, capacityErrMsg := validateObjPerfOptions(ctx, storageInfo, concurrent, size, autotune)
if !sufficientCapacity {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, AdminError{
Code: "XMinioSpeedtestInsufficientCapacity",
Message: capacityErrMsg,
StatusCode: http.StatusInsufficientStorage,
}), r.URL)
return
}
if autotune && !canAutotune {
autotune = false
}
if customBucket == "" {
customBucket = globalObjectPerfBucket
bucketExists, err := makeObjectPerfBucket(ctx, objectAPI, customBucket)
if err != nil {
writeErrorResponseJSON(ctx, w, toAPIError(ctx, err), r.URL)
return
}
if !noClear && !bucketExists {
defer deleteObjectPerfBucket(objectAPI)
}
}
if !noClear {
defer objectAPI.DeleteObject(ctx, customBucket, speedTest+SlashSeparator, ObjectOptions{
DeletePrefix: true,
})
}
// Freeze all incoming S3 API calls before running speedtest.
globalNotificationSys.ServiceFreeze(ctx, true)
// unfreeze all incoming S3 API calls after speedtest.
defer globalNotificationSys.ServiceFreeze(ctx, false)
keepAliveTicker := time.NewTicker(500 * time.Millisecond)
defer keepAliveTicker.Stop()
enc := json.NewEncoder(w)
ch := objectSpeedTest(ctx, speedTestOpts{
objectSize: size,
concurrencyStart: concurrent,
duration: duration,
autotune: autotune,
storageClass: storageClass,
bucketName: customBucket,
})
var prevResult madmin.SpeedTestResult
for {
select {
case <-ctx.Done():
return
case <-keepAliveTicker.C:
// if previous result is set keep writing the
// previous result back to the client
if prevResult.Version != "" {
if err := enc.Encode(prevResult); err != nil {
return
}
} else {
// first result is not yet obtained, keep writing
// empty entry to prevent client from disconnecting.
if err := enc.Encode(madmin.SpeedTestResult{}); err != nil {
return
}
}
w.(http.Flusher).Flush()
case result, ok := <-ch:
if !ok {
return
}
if err := enc.Encode(result); err != nil {
return
}
prevResult = result
w.(http.Flusher).Flush()
}
}
}
func makeObjectPerfBucket(ctx context.Context, objectAPI ObjectLayer, bucketName string) (bucketExists bool, err error) {
if err = objectAPI.MakeBucket(ctx, bucketName, MakeBucketOptions{}); err != nil {
if _, ok := err.(BucketExists); !ok {
// Only BucketExists error can be ignored.
return false, err
}
bucketExists = true
}
return bucketExists, nil
}
func deleteObjectPerfBucket(objectAPI ObjectLayer) {
objectAPI.DeleteBucket(context.Background(), globalObjectPerfBucket, DeleteBucketOptions{
Force: true,
SRDeleteOp: getSRBucketDeleteOp(globalSiteReplicationSys.isEnabled()),
})
}
func validateObjPerfOptions(ctx context.Context, storageInfo madmin.StorageInfo, concurrent int, size int, autotune bool) (bool, bool, string) {
capacityNeeded := uint64(concurrent * size)
capacity := GetTotalUsableCapacityFree(storageInfo.Disks, storageInfo)
if capacity < capacityNeeded {
return false, false, fmt.Sprintf("not enough usable space available to perform speedtest - expected %s, got %s",
humanize.IBytes(capacityNeeded), humanize.IBytes(capacity))
}
// Verify if we can employ autotune without running out of capacity,
// if we do run out of capacity, make sure to turn-off autotuning
// in such situations.
if autotune {
newConcurrent := concurrent + (concurrent+1)/2
autoTunedCapacityNeeded := uint64(newConcurrent * size)
if capacity < autoTunedCapacityNeeded {
// Turn-off auto-tuning if next possible concurrency would reach beyond disk capacity.
return true, false, ""
}
}
return true, autotune, ""
}
// DriveSpeedtestHandler - reports throughput of drives available in the cluster
func (a adminAPIHandlers) DriveSpeedtestHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.HealthInfoAdminAction)
if objectAPI == nil {
return
}
// Freeze all incoming S3 API calls before running speedtest.
globalNotificationSys.ServiceFreeze(ctx, true)
// unfreeze all incoming S3 API calls after speedtest.
defer globalNotificationSys.ServiceFreeze(ctx, false)
serial := r.Form.Get("serial") == "true"
blockSizeStr := r.Form.Get("blocksize")
fileSizeStr := r.Form.Get("filesize")
blockSize, err := strconv.ParseUint(blockSizeStr, 10, 64)
if err != nil {
blockSize = 4 * humanize.MiByte // default value
}
fileSize, err := strconv.ParseUint(fileSizeStr, 10, 64)
if err != nil {
fileSize = 1 * humanize.GiByte // default value
}
opts := madmin.DriveSpeedTestOpts{
Serial: serial,
BlockSize: blockSize,
FileSize: fileSize,
}
keepAliveTicker := time.NewTicker(500 * time.Millisecond)
defer keepAliveTicker.Stop()
ch := globalNotificationSys.DriveSpeedTest(ctx, opts)
enc := json.NewEncoder(w)
for {
select {
case <-ctx.Done():
return
case <-keepAliveTicker.C:
// Write a blank entry to prevent client from disconnecting
if err := enc.Encode(madmin.DriveSpeedTestResult{}); err != nil {
return
}
w.(http.Flusher).Flush()
case result, ok := <-ch:
if !ok {
return
}
if err := enc.Encode(result); err != nil {
return
}
w.(http.Flusher).Flush()
}
}
}
// Admin API errors
const (
AdminUpdateUnexpectedFailure = "XMinioAdminUpdateUnexpectedFailure"
AdminUpdateURLNotReachable = "XMinioAdminUpdateURLNotReachable"
AdminUpdateApplyFailure = "XMinioAdminUpdateApplyFailure"
)
// Returns true if the madmin.TraceInfo should be traced,
// false if certain conditions are not met.
// - input entry is not of the type *madmin.TraceInfo*
// - errOnly entries are to be traced, not status code 2xx, 3xx.
// - madmin.TraceInfo type is asked by opts
func shouldTrace(trcInfo madmin.TraceInfo, opts madmin.ServiceTraceOpts) (shouldTrace bool) {
// Reject all unwanted types.
want := opts.TraceTypes()
if !want.Contains(trcInfo.TraceType) {
return false
}
isHTTP := trcInfo.TraceType.Overlaps(madmin.TraceInternal|madmin.TraceS3) && trcInfo.HTTP != nil
// Check latency...
if opts.Threshold > 0 && trcInfo.Duration < opts.Threshold {
return false
}
// Check internal path
isInternal := isHTTP && HasPrefix(trcInfo.HTTP.ReqInfo.Path, minioReservedBucketPath+SlashSeparator)
if isInternal && !opts.Internal {
return false
}
// Filter non-errors.
if isHTTP && opts.OnlyErrors && trcInfo.HTTP.RespInfo.StatusCode < http.StatusBadRequest {
return false
}
return true
}
func extractTraceOptions(r *http.Request) (opts madmin.ServiceTraceOpts, err error) {
if err := opts.ParseParams(r); err != nil {
return opts, err
}
// Support deprecated 'all' query
if r.Form.Get("all") == "true" {
opts.S3 = true
opts.Internal = true
opts.Storage = true
opts.OS = true
// Older mc - cannot deal with more types...
}
return
}
// TraceHandler - POST /minio/admin/v3/trace
// ----------
// The handler sends http trace to the connected HTTP client.
func (a adminAPIHandlers) TraceHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
// Validate request signature.
_, adminAPIErr := checkAdminRequestAuth(ctx, r, iampolicy.TraceAdminAction, "")
if adminAPIErr != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
return
}
traceOpts, err := extractTraceOptions(r)
if err != nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
return
}
setEventStreamHeaders(w)
// Trace Publisher and peer-trace-client uses nonblocking send and hence does not wait for slow receivers.
// Use buffered channel to take care of burst sends or slow w.Write()
traceCh := make(chan madmin.TraceInfo, 4000)
peers, _ := newPeerRestClients(globalEndpoints)
err = globalTrace.Subscribe(traceOpts.TraceTypes(), traceCh, ctx.Done(), func(entry madmin.TraceInfo) bool {
return shouldTrace(entry, traceOpts)
})
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Publish bootstrap events that have already occurred before client could subscribe.
if traceOpts.TraceTypes().Contains(madmin.TraceBootstrap) {
go globalBootstrapTracer.Publish(ctx, globalTrace)
}
for _, peer := range peers {
if peer == nil {
continue
}
peer.Trace(traceCh, ctx.Done(), traceOpts)
}
keepAliveTicker := time.NewTicker(500 * time.Millisecond)
defer keepAliveTicker.Stop()
enc := json.NewEncoder(w)
for {
select {
case entry := <-traceCh:
if err := enc.Encode(entry); err != nil {
return
}
if len(traceCh) == 0 {
// Flush if nothing is queued
w.(http.Flusher).Flush()
}
case <-keepAliveTicker.C:
if len(traceCh) > 0 {
continue
}
if _, err := w.Write([]byte(" ")); err != nil {
return
}
w.(http.Flusher).Flush()
case <-ctx.Done():
return
}
}
}
// The ConsoleLogHandler handler sends console logs to the connected HTTP client.
func (a adminAPIHandlers) ConsoleLogHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ConsoleLogAdminAction)
if objectAPI == nil {
return
}
node := r.Form.Get("node")
// limit buffered console entries if client requested it.
limitStr := r.Form.Get("limit")
limitLines, err := strconv.Atoi(limitStr)
if err != nil {
limitLines = 10
}
logKind := madmin.LogKind(strings.ToUpper(r.Form.Get("logType"))).LogMask()
if logKind == 0 {
logKind = madmin.LogMaskAll
}
// Avoid reusing tcp connection if read timeout is hit
// This is needed to make r.Context().Done() work as
// expected in case of read timeout
w.Header().Set("Connection", "close")
setEventStreamHeaders(w)
logCh := make(chan log.Info, 4000)
peers, _ := newPeerRestClients(globalEndpoints)
err = globalConsoleSys.Subscribe(logCh, ctx.Done(), node, limitLines, logKind, nil)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
for _, peer := range peers {
if peer == nil {
continue
}
if node == "" || strings.EqualFold(peer.host.Name, node) {
peer.ConsoleLog(logCh, ctx.Done())
}
}
enc := json.NewEncoder(w)
keepAliveTicker := time.NewTicker(500 * time.Millisecond)
defer keepAliveTicker.Stop()
for {
select {
case log, ok := <-logCh:
if !ok {
return
}
if log.SendLog(node, logKind) {
if err := enc.Encode(log); err != nil {
return
}
if len(logCh) == 0 {
// Flush if nothing is queued
w.(http.Flusher).Flush()
}
}
case <-keepAliveTicker.C:
if len(logCh) > 0 {
continue
}
if _, err := w.Write([]byte(" ")); err != nil {
return
}
w.(http.Flusher).Flush()
case <-ctx.Done():
return
}
}
}
// KMSCreateKeyHandler - POST /minio/admin/v3/kms/key/create?key-id=
func (a adminAPIHandlers) KMSCreateKeyHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.KMSCreateKeyAdminAction)
if objectAPI == nil {
return
}
if GlobalKMS == nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrKMSNotConfigured), r.URL)
return
}
if err := GlobalKMS.CreateKey(ctx, r.Form.Get("key-id")); err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseHeadersOnly(w)
}
// KMSKeyStatusHandler - GET /minio/admin/v3/kms/status
func (a adminAPIHandlers) KMSStatusHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.KMSKeyStatusAdminAction)
if objectAPI == nil {
return
}
if GlobalKMS == nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrKMSNotConfigured), r.URL)
return
}
stat, err := GlobalKMS.Stat(ctx)
if err != nil {
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL)
return
}
status := madmin.KMSStatus{
Name: stat.Name,
DefaultKeyID: stat.DefaultKey,
Endpoints: make(map[string]madmin.ItemState, len(stat.Endpoints)),
}
for _, endpoint := range stat.Endpoints {
status.Endpoints[endpoint] = madmin.ItemOnline // TODO(aead): Implement an online check for mTLS
}
resp, err := json.Marshal(status)
if err != nil {
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL)
return
}
writeSuccessResponseJSON(w, resp)
}
// KMSKeyStatusHandler - GET /minio/admin/v3/kms/key/status?key-id=
func (a adminAPIHandlers) KMSKeyStatusHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.KMSKeyStatusAdminAction)
if objectAPI == nil {
return
}
if GlobalKMS == nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrKMSNotConfigured), r.URL)
return
}
stat, err := GlobalKMS.Stat(ctx)
if err != nil {
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL)
return
}
keyID := r.Form.Get("key-id")
if keyID == "" {
keyID = stat.DefaultKey
}
response := madmin.KMSKeyStatus{
KeyID: keyID,
}
kmsContext := kms.Context{"MinIO admin API": "KMSKeyStatusHandler"} // Context for a test key operation
// 1. Generate a new key using the KMS.
key, err := GlobalKMS.GenerateKey(ctx, keyID, kmsContext)
if err != nil {
response.EncryptionErr = err.Error()
resp, err := json.Marshal(response)
if err != nil {
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL)
return
}
writeSuccessResponseJSON(w, resp)
return
}
// 2. Verify that we can indeed decrypt the (encrypted) key
decryptedKey, err := GlobalKMS.DecryptKey(key.KeyID, key.Ciphertext, kmsContext)
if err != nil {
response.DecryptionErr = err.Error()
resp, err := json.Marshal(response)
if err != nil {
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL)
return
}
writeSuccessResponseJSON(w, resp)
return
}
// 3. Compare generated key with decrypted key
if subtle.ConstantTimeCompare(key.Plaintext, decryptedKey) != 1 {
response.DecryptionErr = "The generated and the decrypted data key do not match"
resp, err := json.Marshal(response)
if err != nil {
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL)
return
}
writeSuccessResponseJSON(w, resp)
return
}
resp, err := json.Marshal(response)
if err != nil {
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL)
return
}
writeSuccessResponseJSON(w, resp)
}
func getPoolsInfo(ctx context.Context, allDisks []madmin.Disk) (map[int]map[int]madmin.ErasureSetInfo, error) {
objectAPI := newObjectLayerFn()
if objectAPI == nil {
return nil, errServerNotInitialized
}
z, _ := objectAPI.(*erasureServerPools)
poolsInfo := make(map[int]map[int]madmin.ErasureSetInfo)
for _, d := range allDisks {
poolInfo, ok := poolsInfo[d.PoolIndex]
if !ok {
poolInfo = make(map[int]madmin.ErasureSetInfo)
}
erasureSet, ok := poolInfo[d.SetIndex]
if !ok {
erasureSet.ID = d.SetIndex
cache := dataUsageCache{}
if err := cache.load(ctx, z.serverPools[d.PoolIndex].sets[d.SetIndex], dataUsageCacheName); err == nil {
dataUsageInfo := cache.dui(dataUsageRoot, nil)
erasureSet.ObjectsCount = dataUsageInfo.ObjectsTotalCount
erasureSet.VersionsCount = dataUsageInfo.VersionsTotalCount
erasureSet.DeleteMarkersCount = dataUsageInfo.DeleteMarkersTotalCount
erasureSet.Usage = dataUsageInfo.ObjectsTotalSize
}
}
erasureSet.RawCapacity += d.TotalSpace
erasureSet.RawUsage += d.UsedSpace
if d.Healing {
erasureSet.HealDisks = 1
}
poolInfo[d.SetIndex] = erasureSet
poolsInfo[d.PoolIndex] = poolInfo
}
return poolsInfo, nil
}
func getServerInfo(ctx context.Context, poolsInfoEnabled bool, r *http.Request) madmin.InfoMessage {
ldap := madmin.LDAP{}
if globalIAMSys.LDAPConfig.Enabled() {
ldapConn, err := globalIAMSys.LDAPConfig.LDAP.Connect()
//nolint:gocritic
if err != nil {
ldap.Status = string(madmin.ItemOffline)
} else if ldapConn == nil {
ldap.Status = "Not Configured"
} else {
// Close ldap connection to avoid leaks.
ldapConn.Close()
ldap.Status = string(madmin.ItemOnline)
}
}
log, audit := fetchLoggerInfo()
// Get the notification target info
notifyTarget := fetchLambdaInfo()
local := getLocalServerProperty(globalEndpoints, r)
servers := globalNotificationSys.ServerInfo()
servers = append(servers, local)
assignPoolNumbers(servers)
var poolsInfo map[int]map[int]madmin.ErasureSetInfo
var backend madmin.ErasureBackend
mode := madmin.ItemInitializing
buckets := madmin.Buckets{}
objects := madmin.Objects{}
versions := madmin.Versions{}
deleteMarkers := madmin.DeleteMarkers{}
usage := madmin.Usage{}
objectAPI := newObjectLayerFn()
if objectAPI != nil {
mode = madmin.ItemOnline
// Load data usage
dataUsageInfo, err := loadDataUsageFromBackend(ctx, objectAPI)
if err == nil {
buckets = madmin.Buckets{Count: dataUsageInfo.BucketsCount}
objects = madmin.Objects{Count: dataUsageInfo.ObjectsTotalCount}
versions = madmin.Versions{Count: dataUsageInfo.VersionsTotalCount}
deleteMarkers = madmin.DeleteMarkers{Count: dataUsageInfo.DeleteMarkersTotalCount}
usage = madmin.Usage{Size: dataUsageInfo.ObjectsTotalSize}
} else {
buckets = madmin.Buckets{Error: err.Error()}
objects = madmin.Objects{Error: err.Error()}
deleteMarkers = madmin.DeleteMarkers{Error: err.Error()}
usage = madmin.Usage{Error: err.Error()}
}
// Fetching the backend information
backendInfo := objectAPI.BackendInfo()
// Calculate the number of online/offline disks of all nodes
var allDisks []madmin.Disk
for _, s := range servers {
allDisks = append(allDisks, s.Disks...)
}
onlineDisks, offlineDisks := getOnlineOfflineDisksStats(allDisks)
backend = madmin.ErasureBackend{
Type: madmin.ErasureType,
OnlineDisks: onlineDisks.Sum(),
OfflineDisks: offlineDisks.Sum(),
StandardSCParity: backendInfo.StandardSCParity,
RRSCParity: backendInfo.RRSCParity,
TotalSets: backendInfo.TotalSets,
DrivesPerSet: backendInfo.DrivesPerSet,
}
if poolsInfoEnabled {
poolsInfo, _ = getPoolsInfo(ctx, allDisks)
}
}
domain := globalDomainNames
services := madmin.Services{
KMS: fetchKMSStatus(),
KMSStatus: fetchKMSStatusV2(ctx),
LDAP: ldap,
Logger: log,
Audit: audit,
Notifications: notifyTarget,
}
return madmin.InfoMessage{
Mode: string(mode),
Domain: domain,
Region: globalSite.Region,
SQSARN: globalEventNotifier.GetARNList(false),
DeploymentID: globalDeploymentID,
Buckets: buckets,
Objects: objects,
Versions: versions,
DeleteMarkers: deleteMarkers,
Usage: usage,
Services: services,
Backend: backend,
Servers: servers,
Pools: poolsInfo,
}
}
func getKubernetesInfo(dctx context.Context) madmin.KubernetesInfo {
ctx, cancel := context.WithCancel(dctx)
defer cancel()
ki := madmin.KubernetesInfo{}
req, err := http.NewRequestWithContext(ctx, http.MethodGet, kubernetesVersionEndpoint, nil)
if err != nil {
ki.Error = err.Error()
return ki
}
client := &http.Client{
Transport: NewHTTPTransport(),
Timeout: 10 * time.Second,
}
resp, err := client.Do(req)
if err != nil {
ki.Error = err.Error()
return ki
}
defer resp.Body.Close()
decoder := json.NewDecoder(resp.Body)
if err := decoder.Decode(&ki); err != nil {
ki.Error = err.Error()
}
return ki
}
func fetchHealthInfo(healthCtx context.Context, objectAPI ObjectLayer, query *url.Values, healthInfoCh chan madmin.HealthInfo, healthInfo madmin.HealthInfo) {
hostAnonymizer := createHostAnonymizer()
// anonAddr - Anonymizes hosts in given input string.
anonAddr := func(addr string) string {
newAddr, found := hostAnonymizer[addr]
if found {
return newAddr
}
// If we reach here, it means that the given addr doesn't contain any of the hosts.
// Return it as is. Can happen for drive paths in non-distributed mode
return addr
}
// anonymizedAddr - Updated the addr of the node info with anonymized one
anonymizeAddr := func(info madmin.NodeInfo) {
info.SetAddr(anonAddr(info.GetAddr()))
}
partialWrite := func(oinfo madmin.HealthInfo) {
select {
case healthInfoCh <- oinfo:
case <-healthCtx.Done():
}
}
getAndWritePlatformInfo := func() {
if IsKubernetes() {
healthInfo.Sys.KubernetesInfo = getKubernetesInfo(healthCtx)
partialWrite(healthInfo)
}
}
getAndWriteCPUs := func() {
if query.Get("syscpu") == "true" {
localCPUInfo := madmin.GetCPUs(healthCtx, globalLocalNodeName)
anonymizeAddr(&localCPUInfo)
healthInfo.Sys.CPUInfo = append(healthInfo.Sys.CPUInfo, localCPUInfo)
peerCPUInfo := globalNotificationSys.GetCPUs(healthCtx)
for _, cpuInfo := range peerCPUInfo {
anonymizeAddr(&cpuInfo)
healthInfo.Sys.CPUInfo = append(healthInfo.Sys.CPUInfo, cpuInfo)
}
partialWrite(healthInfo)
}
}
getAndWritePartitions := func() {
if query.Get("sysdrivehw") == "true" {
localPartitions := madmin.GetPartitions(healthCtx, globalLocalNodeName)
anonymizeAddr(&localPartitions)
healthInfo.Sys.Partitions = append(healthInfo.Sys.Partitions, localPartitions)
peerPartitions := globalNotificationSys.GetPartitions(healthCtx)
for _, p := range peerPartitions {
anonymizeAddr(&p)
healthInfo.Sys.Partitions = append(healthInfo.Sys.Partitions, p)
}
partialWrite(healthInfo)
}
}
getAndWriteOSInfo := func() {
if query.Get("sysosinfo") == "true" {
localOSInfo := madmin.GetOSInfo(healthCtx, globalLocalNodeName)
anonymizeAddr(&localOSInfo)
healthInfo.Sys.OSInfo = append(healthInfo.Sys.OSInfo, localOSInfo)
peerOSInfos := globalNotificationSys.GetOSInfo(healthCtx)
for _, o := range peerOSInfos {
anonymizeAddr(&o)
healthInfo.Sys.OSInfo = append(healthInfo.Sys.OSInfo, o)
}
partialWrite(healthInfo)
}
}
getAndWriteMemInfo := func() {
if query.Get("sysmem") == "true" {
localMemInfo := madmin.GetMemInfo(healthCtx, globalLocalNodeName)
anonymizeAddr(&localMemInfo)
healthInfo.Sys.MemInfo = append(healthInfo.Sys.MemInfo, localMemInfo)
peerMemInfos := globalNotificationSys.GetMemInfo(healthCtx)
for _, m := range peerMemInfos {
anonymizeAddr(&m)
healthInfo.Sys.MemInfo = append(healthInfo.Sys.MemInfo, m)
}
partialWrite(healthInfo)
}
}
getAndWriteSysErrors := func() {
if query.Get(string(madmin.HealthDataTypeSysErrors)) == "true" {
localSysErrors := madmin.GetSysErrors(healthCtx, globalLocalNodeName)
anonymizeAddr(&localSysErrors)
healthInfo.Sys.SysErrs = append(healthInfo.Sys.SysErrs, localSysErrors)
partialWrite(healthInfo)
peerSysErrs := globalNotificationSys.GetSysErrors(healthCtx)
for _, se := range peerSysErrs {
anonymizeAddr(&se)
healthInfo.Sys.SysErrs = append(healthInfo.Sys.SysErrs, se)
}
partialWrite(healthInfo)
}
}
getAndWriteSysConfig := func() {
if query.Get(string(madmin.HealthDataTypeSysConfig)) == "true" {
localSysConfig := madmin.GetSysConfig(healthCtx, globalLocalNodeName)
anonymizeAddr(&localSysConfig)
healthInfo.Sys.SysConfig = append(healthInfo.Sys.SysConfig, localSysConfig)
partialWrite(healthInfo)
peerSysConfig := globalNotificationSys.GetSysConfig(healthCtx)
for _, sc := range peerSysConfig {
anonymizeAddr(&sc)
healthInfo.Sys.SysConfig = append(healthInfo.Sys.SysConfig, sc)
}
partialWrite(healthInfo)
}
}
getAndWriteSysServices := func() {
if query.Get(string(madmin.HealthDataTypeSysServices)) == "true" {
localSysServices := madmin.GetSysServices(healthCtx, globalLocalNodeName)
anonymizeAddr(&localSysServices)
healthInfo.Sys.SysServices = append(healthInfo.Sys.SysServices, localSysServices)
partialWrite(healthInfo)
peerSysServices := globalNotificationSys.GetSysServices(healthCtx)
for _, ss := range peerSysServices {
anonymizeAddr(&ss)
healthInfo.Sys.SysServices = append(healthInfo.Sys.SysServices, ss)
}
partialWrite(healthInfo)
}
}
// collect all realtime metrics except disk
// disk metrics are already included under drive info of each server
getRealtimeMetrics := func() *madmin.RealtimeMetrics {
var m madmin.RealtimeMetrics
var types madmin.MetricType = madmin.MetricsAll &^ madmin.MetricsDisk
mLocal := collectLocalMetrics(types, collectMetricsOpts{})
m.Merge(&mLocal)
cctx, cancel := context.WithTimeout(healthCtx, time.Second/2)
mRemote := collectRemoteMetrics(cctx, types, collectMetricsOpts{})
cancel()
m.Merge(&mRemote)
for idx, host := range m.Hosts {
m.Hosts[idx] = anonAddr(host)
}
for host, metrics := range m.ByHost {
m.ByHost[anonAddr(host)] = metrics
delete(m.ByHost, host)
}
return &m
}
anonymizeCmdLine := func(cmdLine string) string {
if !globalIsDistErasure {
// FS mode - single server - hard code to `server1`
anonCmdLine := strings.ReplaceAll(cmdLine, globalLocalNodeName, "server1")
if len(globalMinioConsoleHost) > 0 {
anonCmdLine = strings.ReplaceAll(anonCmdLine, globalMinioConsoleHost, "server1")
}
return anonCmdLine
}
// Server start command regex groups:
// 1 - minio server
// 2 - flags e.g. `--address :9000 --certs-dir /etc/minio/certs`
// 3 - pool args e.g. `https://node{01...16}.domain/data/disk{001...204} https://node{17...32}.domain/data/disk{001...204}`
re := regexp.MustCompile(`^(.*minio\s+server\s+)(--[^\s]+\s+[^\s]+\s+)*(.*)`)
// stays unchanged in the anonymized version
cmdLineWithoutPools := re.ReplaceAllString(cmdLine, `$1$2`)
// to be anonymized
poolsArgs := re.ReplaceAllString(cmdLine, `$3`)
var anonPools []string
if !(strings.Contains(poolsArgs, "{") && strings.Contains(poolsArgs, "}")) {
// No ellipses pattern. Anonymize host name from every pool arg
pools := strings.Fields(poolsArgs)
anonPools = make([]string, len(pools))
for index, arg := range pools {
anonPools[index] = anonAddr(arg)
}
return cmdLineWithoutPools + strings.Join(anonPools, " ")
}
// Ellipses pattern in pool args. Regex groups:
// 1 - server prefix
// 2 - number sequence for servers
// 3 - server suffix
// 4 - drive prefix (starting with /)
// 5 - number sequence for drives
// 6 - drive suffix
re = regexp.MustCompile(`([^\s^{]*)({\d+...\d+})?([^\s^{^/]*)(/[^\s^{]*)({\d+...\d+})?([^\s]*)`)
poolsMatches := re.FindAllStringSubmatch(poolsArgs, -1)
anonPools = make([]string, len(poolsMatches))
idxMap := map[int]string{
1: "spfx",
3: "ssfx",
}
for pi, poolsMatch := range poolsMatches {
// Replace the server prefix/suffix with anonymized ones
for idx, lbl := range idxMap {
if len(poolsMatch[idx]) > 0 {
poolsMatch[idx] = fmt.Sprintf("%s%d", lbl, crc32.ChecksumIEEE([]byte(poolsMatch[idx])))
}
}
// Remove the original pools args present at index 0
anonPools[pi] = strings.Join(poolsMatch[1:], "")
}
return cmdLineWithoutPools + strings.Join(anonPools, " ")
}
anonymizeProcInfo := func(p *madmin.ProcInfo) {
p.CmdLine = anonymizeCmdLine(p.CmdLine)
anonymizeAddr(p)
}
getAndWriteProcInfo := func() {
if query.Get("sysprocess") == "true" {
localProcInfo := madmin.GetProcInfo(healthCtx, globalLocalNodeName)
anonymizeProcInfo(&localProcInfo)
healthInfo.Sys.ProcInfo = append(healthInfo.Sys.ProcInfo, localProcInfo)
peerProcInfos := globalNotificationSys.GetProcInfo(healthCtx)
for _, p := range peerProcInfos {
anonymizeProcInfo(&p)
healthInfo.Sys.ProcInfo = append(healthInfo.Sys.ProcInfo, p)
}
partialWrite(healthInfo)
}
}
getAndWriteMinioConfig := func() {
if query.Get("minioconfig") == "true" {
config, err := readServerConfig(healthCtx, objectAPI, nil)
if err != nil {
healthInfo.Minio.Config = madmin.MinioConfig{
Error: err.Error(),
}
} else {
healthInfo.Minio.Config = madmin.MinioConfig{
Config: config.RedactSensitiveInfo(),
}
}
partialWrite(healthInfo)
}
}
anonymizeNetwork := func(network map[string]string) map[string]string {
anonNetwork := map[string]string{}
for endpoint, status := range network {
anonEndpoint := anonAddr(endpoint)
anonNetwork[anonEndpoint] = status
}
return anonNetwork
}
anonymizeDrives := func(drives []madmin.Disk) []madmin.Disk {
anonDrives := []madmin.Disk{}
for _, drive := range drives {
drive.Endpoint = anonAddr(drive.Endpoint)
anonDrives = append(anonDrives, drive)
}
return anonDrives
}
go func() {
defer close(healthInfoCh)
partialWrite(healthInfo) // Write first message with only version and deployment id populated
getAndWritePlatformInfo()
getAndWriteCPUs()
getAndWritePartitions()
getAndWriteOSInfo()
getAndWriteMemInfo()
getAndWriteProcInfo()
getAndWriteMinioConfig()
getAndWriteSysErrors()
getAndWriteSysServices()
getAndWriteSysConfig()
if query.Get("minioinfo") == "true" {
infoMessage := getServerInfo(healthCtx, false, nil)
servers := make([]madmin.ServerInfo, 0, len(infoMessage.Servers))
for _, server := range infoMessage.Servers {
anonEndpoint := anonAddr(server.Endpoint)
servers = append(servers, madmin.ServerInfo{
State: server.State,
Endpoint: anonEndpoint,
Uptime: server.Uptime,
Version: server.Version,
CommitID: server.CommitID,
Network: anonymizeNetwork(server.Network),
Drives: anonymizeDrives(server.Disks),
PoolNumber: server.PoolNumber,
MemStats: madmin.MemStats{
Alloc: server.MemStats.Alloc,
TotalAlloc: server.MemStats.TotalAlloc,
Mallocs: server.MemStats.Mallocs,
Frees: server.MemStats.Frees,
HeapAlloc: server.MemStats.HeapAlloc,
},
GoMaxProcs: server.GoMaxProcs,
NumCPU: server.NumCPU,
RuntimeVersion: server.RuntimeVersion,
GCStats: server.GCStats,
MinioEnvVars: server.MinioEnvVars,
})
}
tls := getTLSInfo()
isK8s := IsKubernetes()
isDocker := IsDocker()
healthInfo.Minio.Info = madmin.MinioInfo{
Mode: infoMessage.Mode,
Domain: infoMessage.Domain,
Region: infoMessage.Region,
SQSARN: infoMessage.SQSARN,
DeploymentID: infoMessage.DeploymentID,
Buckets: infoMessage.Buckets,
Objects: infoMessage.Objects,
Usage: infoMessage.Usage,
Services: infoMessage.Services,
Backend: infoMessage.Backend,
Servers: servers,
TLS: &tls,
IsKubernetes: &isK8s,
IsDocker: &isDocker,
Metrics: getRealtimeMetrics(),
}
partialWrite(healthInfo)
}
}()
}
// HealthInfoHandler - GET /minio/admin/v3/healthinfo
// ----------
// Get server health info
func (a adminAPIHandlers) HealthInfoHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.HealthInfoAdminAction)
if objectAPI == nil {
return
}
query := r.Form
healthInfoCh := make(chan madmin.HealthInfo)
enc := json.NewEncoder(w)
healthInfo := madmin.HealthInfo{
TimeStamp: time.Now().UTC(),
Version: madmin.HealthInfoVersion,
Minio: madmin.MinioHealthInfo{
Info: madmin.MinioInfo{
DeploymentID: globalDeploymentID,
},
},
}
errResp := func(err error) {
errorResponse := getAPIErrorResponse(ctx, toAdminAPIErr(ctx, err), r.URL.String(),
w.Header().Get(xhttp.AmzRequestID), w.Header().Get(xhttp.AmzRequestHostID))
encodedErrorResponse := encodeResponse(errorResponse)
healthInfo.Error = string(encodedErrorResponse)
logger.LogIf(ctx, enc.Encode(healthInfo))
}
deadline := 10 * time.Second // Default deadline is 10secs for health diagnostics.
if dstr := query.Get("deadline"); dstr != "" {
var err error
deadline, err = time.ParseDuration(dstr)
if err != nil {
errResp(err)
return
}
}
nsLock := objectAPI.NewNSLock(minioMetaBucket, "health-check-in-progress")
lkctx, err := nsLock.GetLock(ctx, newDynamicTimeout(deadline, deadline))
if err != nil { // returns a locked lock
errResp(err)
return
}
defer nsLock.Unlock(lkctx)
healthCtx, healthCancel := context.WithTimeout(lkctx.Context(), deadline)
defer healthCancel()
go fetchHealthInfo(healthCtx, objectAPI, &query, healthInfoCh, healthInfo)
setCommonHeaders(w)
setEventStreamHeaders(w)
w.WriteHeader(http.StatusOK)
ticker := time.NewTicker(5 * time.Second)
defer ticker.Stop()
for {
select {
case oinfo, ok := <-healthInfoCh:
if !ok {
return
}
if err := enc.Encode(oinfo); err != nil {
return
}
if len(healthInfoCh) == 0 {
// Flush if nothing is queued
w.(http.Flusher).Flush()
}
case <-ticker.C:
if _, err := w.Write([]byte(" ")); err != nil {
return
}
w.(http.Flusher).Flush()
case <-healthCtx.Done():
return
}
}
}
func getTLSInfo() madmin.TLSInfo {
tlsInfo := madmin.TLSInfo{
TLSEnabled: globalIsTLS,
Certs: []madmin.TLSCert{},
}
if globalIsTLS {
for _, c := range globalPublicCerts {
tlsInfo.Certs = append(tlsInfo.Certs, madmin.TLSCert{
PubKeyAlgo: c.PublicKeyAlgorithm.String(),
SignatureAlgo: c.SignatureAlgorithm.String(),
NotBefore: c.NotBefore,
NotAfter: c.NotAfter,
})
}
}
return tlsInfo
}
// ServerInfoHandler - GET /minio/admin/v3/info
// ----------
// Get server information
func (a adminAPIHandlers) ServerInfoHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
// Validate request signature.
_, adminAPIErr := checkAdminRequestAuth(ctx, r, iampolicy.ServerInfoAdminAction, "")
if adminAPIErr != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
return
}
// Marshal API response
jsonBytes, err := json.Marshal(getServerInfo(ctx, true, r))
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Reply with storage information (across nodes in a
// distributed setup) as json.
writeSuccessResponseJSON(w, jsonBytes)
}
func assignPoolNumbers(servers []madmin.ServerProperties) {
for i := range servers {
for idx, ge := range globalEndpoints {
for _, endpoint := range ge.Endpoints {
if servers[i].Endpoint == endpoint.Host {
servers[i].PoolNumber = idx + 1
} else if host, err := xnet.ParseHost(servers[i].Endpoint); err == nil {
if host.Name == endpoint.Hostname() {
servers[i].PoolNumber = idx + 1
}
}
}
}
}
}
func fetchLambdaInfo() []map[string][]madmin.TargetIDStatus {
lambdaMap := make(map[string][]madmin.TargetIDStatus)
for _, tgt := range globalNotifyTargetList.Targets() {
targetIDStatus := make(map[string]madmin.Status)
active, _ := tgt.IsActive()
targetID := tgt.ID()
if active {
targetIDStatus[targetID.ID] = madmin.Status{Status: string(madmin.ItemOnline)}
} else {
targetIDStatus[targetID.ID] = madmin.Status{Status: string(madmin.ItemOffline)}
}
list := lambdaMap[targetID.Name]
list = append(list, targetIDStatus)
lambdaMap[targetID.Name] = list
}
notify := make([]map[string][]madmin.TargetIDStatus, len(lambdaMap))
counter := 0
for key, value := range lambdaMap {
v := make(map[string][]madmin.TargetIDStatus)
v[key] = value
notify[counter] = v
counter++
}
return notify
}
// fetchKMSStatus fetches KMS-related status information.
func fetchKMSStatus() madmin.KMS {
kmsStat := madmin.KMS{}
if GlobalKMS == nil {
kmsStat.Status = "disabled"
return kmsStat
}
stat, err := GlobalKMS.Stat(context.Background())
if err != nil {
kmsStat.Status = string(madmin.ItemOffline)
return kmsStat
}
if len(stat.Endpoints) == 0 {
kmsStat.Status = stat.Name
return kmsStat
}
kmsStat.Status = string(madmin.ItemOnline)
kmsContext := kms.Context{"MinIO admin API": "ServerInfoHandler"} // Context for a test key operation
// 1. Generate a new key using the KMS.
key, err := GlobalKMS.GenerateKey(context.Background(), "", kmsContext)
if err != nil {
kmsStat.Encrypt = fmt.Sprintf("Encryption failed: %v", err)
} else {
kmsStat.Encrypt = "success"
}
// 2. Verify that we can indeed decrypt the (encrypted) key
decryptedKey, err := GlobalKMS.DecryptKey(key.KeyID, key.Ciphertext, kmsContext)
switch {
case err != nil:
kmsStat.Decrypt = fmt.Sprintf("Decryption failed: %v", err)
case subtle.ConstantTimeCompare(key.Plaintext, decryptedKey) != 1:
kmsStat.Decrypt = "Decryption failed: decrypted key does not match generated key"
default:
kmsStat.Decrypt = "success"
}
return kmsStat
}
// fetchKMSStatusV2 fetches KMS-related status information for all instances
func fetchKMSStatusV2(ctx context.Context) []madmin.KMS {
if GlobalKMS == nil {
return []madmin.KMS{}
}
results := GlobalKMS.Verify(ctx)
stats := []madmin.KMS{}
for _, result := range results {
stats = append(stats, madmin.KMS{
Status: result.Status,
Endpoint: result.Endpoint,
Encrypt: result.Encrypt,
Decrypt: result.Decrypt,
Version: result.Version,
})
}
return stats
}
// fetchLoggerDetails return log info
func fetchLoggerInfo() ([]madmin.Logger, []madmin.Audit) {
var loggerInfo []madmin.Logger
var auditloggerInfo []madmin.Audit
for _, tgt := range logger.SystemTargets() {
if tgt.Endpoint() != "" {
loggerInfo = append(loggerInfo, madmin.Logger{tgt.String(): logger.TargetStatus(GlobalContext, tgt)})
}
}
for _, tgt := range logger.AuditTargets() {
if tgt.Endpoint() != "" {
auditloggerInfo = append(auditloggerInfo, madmin.Audit{tgt.String(): logger.TargetStatus(GlobalContext, tgt)})
}
}
return loggerInfo, auditloggerInfo
}
func embedFileInZip(zipWriter *zip.Writer, name string, data []byte) error {
// Send profiling data to zip as file
header, zerr := zip.FileInfoHeader(dummyFileInfo{
name: name,
size: int64(len(data)),
mode: 0o600,
modTime: UTCNow(),
isDir: false,
sys: nil,
})
if zerr != nil {
return zerr
}
header.Method = zip.Deflate
zwriter, zerr := zipWriter.CreateHeader(header)
if zerr != nil {
return zerr
}
_, err := io.Copy(zwriter, bytes.NewReader(data))
return err
}
// getClusterMetaInfo gets information of the current cluster and
// returns it.
// This is not a critical function, and it is allowed
// to fail with a ten seconds timeout, returning nil.
func getClusterMetaInfo(ctx context.Context) []byte {
objectAPI := newObjectLayerFn()
if objectAPI == nil {
return nil
}
// Add a ten seconds timeout because getting profiling data
// is critical for debugging, in contrary to getting cluster info
ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
defer cancel()
resultCh := make(chan madmin.ClusterRegistrationInfo)
go func() {
defer close(resultCh)
ci := madmin.ClusterRegistrationInfo{}
ci.Info.NoOfServerPools = len(globalEndpoints)
ci.Info.NoOfServers = len(globalEndpoints.Hostnames())
ci.Info.MinioVersion = Version
si := objectAPI.StorageInfo(ctx)
ci.Info.NoOfDrives = len(si.Disks)
for _, disk := range si.Disks {
ci.Info.TotalDriveSpace += disk.TotalSpace
ci.Info.UsedDriveSpace += disk.UsedSpace
}
dataUsageInfo, _ := loadDataUsageFromBackend(ctx, objectAPI)
ci.UsedCapacity = dataUsageInfo.ObjectsTotalSize
ci.Info.NoOfBuckets = dataUsageInfo.BucketsCount
ci.Info.NoOfObjects = dataUsageInfo.ObjectsTotalCount
ci.DeploymentID = globalDeploymentID
ci.ClusterName = fmt.Sprintf("%d-servers-%d-disks-%s", ci.Info.NoOfServers, ci.Info.NoOfDrives, ci.Info.MinioVersion)
select {
case resultCh <- ci:
case <-ctx.Done():
return
}
}()
select {
case <-ctx.Done():
return nil
case ci := <-resultCh:
out, err := json.MarshalIndent(ci, "", " ")
if err != nil {
logger.LogIf(ctx, err)
return nil
}
return out
}
}
func bytesToPublicKey(pub []byte) (*rsa.PublicKey, error) {
block, _ := pem.Decode(pub)
if block != nil {
pub = block.Bytes
}
key, err := x509.ParsePKCS1PublicKey(pub)
if err != nil {
return nil, err
}
return key, nil
}
// getRawDataer provides an interface for getting raw FS files.
type getRawDataer interface {
GetRawData(ctx context.Context, volume, file string, fn func(r io.Reader, host string, disk string, filename string, info StatInfo) error) error
}
// InspectDataHandler - GET /minio/admin/v3/inspect-data
// ----------
// Download file from all nodes in a zip format
func (a adminAPIHandlers) InspectDataHandler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
// Validate request signature.
_, adminAPIErr := checkAdminRequestAuth(ctx, r, iampolicy.InspectDataAction, "")
if adminAPIErr != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
return
}
objLayer := newObjectLayerFn()
o, ok := objLayer.(getRawDataer)
if !ok {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
return
}
if err := parseForm(r); err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
volume := r.Form.Get("volume")
if len(volume) == 0 {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidBucketName), r.URL)
return
}
file := r.Form.Get("file")
if len(file) == 0 {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
return
}
file = strings.ReplaceAll(file, string(os.PathSeparator), "/")
// Reject attempts to traverse parent or absolute paths.
if strings.Contains(file, "..") || strings.Contains(volume, "..") {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAccessDenied), r.URL)
return
}
var publicKey *rsa.PublicKey
publicKeyB64 := r.Form.Get("public-key")
if publicKeyB64 != "" {
publicKeyBytes, err := base64.StdEncoding.DecodeString(publicKeyB64)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
publicKey, err = bytesToPublicKey(publicKeyBytes)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
}
// Write a version for making *incompatible* changes.
// The AdminClient will reject any version it does not know.
var inspectZipW *zip.Writer
if publicKey != nil {
w.WriteHeader(200)
stream := estream.NewWriter(w)
defer stream.Close()
clusterKey, err := bytesToPublicKey(getSubnetAdminPublicKey())
if err != nil {
logger.LogIf(ctx, stream.AddError(err.Error()))
return
}
err = stream.AddKeyEncrypted(clusterKey)
if err != nil {
logger.LogIf(ctx, stream.AddError(err.Error()))
return
}
if b := getClusterMetaInfo(ctx); len(b) > 0 {
w, err := stream.AddEncryptedStream("cluster.info", nil)
if err != nil {
logger.LogIf(ctx, err)
return
}
w.Write(b)
w.Close()
}
// Add new key for inspect data.
if err := stream.AddKeyEncrypted(publicKey); err != nil {
logger.LogIf(ctx, stream.AddError(err.Error()))
return
}
encStream, err := stream.AddEncryptedStream("inspect.zip", nil)
if err != nil {
logger.LogIf(ctx, stream.AddError(err.Error()))
return
}
defer encStream.Close()
inspectZipW = zip.NewWriter(encStream)
defer inspectZipW.Close()
} else {
// Legacy: Remove if we stop supporting inspection without public key.
var key [32]byte
// MUST use crypto/rand
n, err := crand.Read(key[:])
if err != nil || n != len(key) {
logger.LogIf(ctx, err)
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Write a version for making *incompatible* changes.
// The AdminClient will reject any version it does not know.
if publicKey == nil {
w.Write([]byte{1})
w.Write(key[:])
}
stream, err := sio.AES_256_GCM.Stream(key[:])
if err != nil {
logger.LogIf(ctx, err)
return
}
// Zero nonce, we only use each key once, and 32 bytes is plenty.
nonce := make([]byte, stream.NonceSize())
encw := stream.EncryptWriter(w, nonce, nil)
defer encw.Close()
// Initialize a zip writer which will provide a zipped content
// of profiling data of all nodes
inspectZipW = zip.NewWriter(encw)
defer inspectZipW.Close()
if b := getClusterMetaInfo(ctx); len(b) > 0 {
logger.LogIf(ctx, embedFileInZip(inspectZipW, "cluster.info", b))
}
}
rawDataFn := func(r io.Reader, host, disk, filename string, si StatInfo) error {
// Prefix host+disk
filename = path.Join(host, disk, filename)
if si.Dir {
filename += "/"
si.Size = 0
}
if si.Mode == 0 {
// Not, set it to default.
si.Mode = 0o600
}
if si.ModTime.IsZero() {
// Set time to now.
si.ModTime = time.Now()
}
header, zerr := zip.FileInfoHeader(dummyFileInfo{
name: filename,
size: si.Size,
mode: os.FileMode(si.Mode),
modTime: si.ModTime,
isDir: si.Dir,
sys: nil,
})
if zerr != nil {
logger.LogIf(ctx, zerr)
return nil
}
header.Method = zip.Deflate
zwriter, zerr := inspectZipW.CreateHeader(header)
if zerr != nil {
logger.LogIf(ctx, zerr)
return nil
}
if _, err := io.Copy(zwriter, r); err != nil {
logger.LogIf(ctx, err)
}
return nil
}
err := o.GetRawData(ctx, volume, file, rawDataFn)
if !errors.Is(err, errFileNotFound) {
logger.LogIf(ctx, err)
}
// save the format.json as part of inspect by default
if volume != minioMetaBucket && file != formatConfigFile {
err = o.GetRawData(ctx, minioMetaBucket, formatConfigFile, rawDataFn)
}
if !errors.Is(err, errFileNotFound) {
logger.LogIf(ctx, err)
}
// save args passed to inspect command
var sb bytes.Buffer
fmt.Fprintf(&sb, "Inspect path: %s%s%s\n", volume, slashSeparator, file)
sb.WriteString("Server command line args:")
for _, pool := range globalEndpoints {
sb.WriteString(" ")
sb.WriteString(pool.CmdLine)
}
sb.WriteString("\n")
logger.LogIf(ctx, embedFileInZip(inspectZipW, "inspect-input.txt", sb.Bytes()))
// save MinIO start script to inspect command
var scrb bytes.Buffer
scrb.WriteString(`#!/usr/bin/env bash
function main() {
for file in $(ls -1); do
dest_file=$(echo "$file" | cut -d ":" -f1)
mv "$file" "$dest_file"
done
# Read content of inspect-input.txt
MINIO_OPTS=$(grep "Server command line args" <./inspect-input.txt | sed "s/Server command line args: //g" | sed -r "s#https:\/\/#\.\/#g")
# Start MinIO instance using the options
START_CMD="CI=on MINIO_ROOT_USER=minio MINIO_ROOT_PASSWORD=minio123 minio server ${MINIO_OPTS} &"
echo
echo "Starting MinIO instance: ${START_CMD}"
echo
eval "$START_CMD"
MINIO_SRVR_PID="$!"
echo "MinIO Server PID: ${MINIO_SRVR_PID}"
echo
echo "Waiting for MinIO instance to get ready!"
sleep 10
}
main "$@"`,
)
logger.LogIf(ctx, embedFileInZip(inspectZipW, "start-minio.sh", scrb.Bytes()))
}
func getSubnetAdminPublicKey() []byte {
if globalIsCICD {
return subnetAdminPublicKeyDev
}
return subnetAdminPublicKey
}
func createHostAnonymizerForFSMode() map[string]string {
hostAnonymizer := map[string]string{
globalLocalNodeName: "server1",
}
apiEndpoints := getAPIEndpoints()
for _, ep := range apiEndpoints {
if len(ep) == 0 {
continue
}
if url, err := xnet.ParseHTTPURL(ep); err == nil {
// In FS mode the drive names don't include the host.
// So mapping just the host should be sufficient.
hostAnonymizer[url.Host] = "server1"
}
}
return hostAnonymizer
}
// anonymizeHost - Add entries related to given endpoint in the host anonymizer map
// The health report data can contain the hostname in various forms e.g. host, host:port,
// host:port/drivepath, full url (http://host:port/drivepath)
// The anonymizer map will have mappings for all these varients for efficiently replacing
// any of these strings to the anonymized versions at the time of health report generation.
func anonymizeHost(hostAnonymizer map[string]string, endpoint Endpoint, poolNum int, srvrNum int) {
if len(endpoint.Host) == 0 {
return
}
currentURL := endpoint.String()
// mapIfNotPresent - Maps the given key to the value only if the key is not present in the map
mapIfNotPresent := func(m map[string]string, key string, val string) {
_, found := m[key]
if !found {
m[key] = val
}
}
_, found := hostAnonymizer[currentURL]
if !found {
// In distributed setup, anonymized addr = 'poolNum.serverNum'
newHost := fmt.Sprintf("pool%d.server%d", poolNum, srvrNum)
schemePfx := endpoint.Scheme + "://"
// Hostname
mapIfNotPresent(hostAnonymizer, endpoint.Hostname(), newHost)
newHostPort := newHost
if len(endpoint.Port()) > 0 {
// Host + port
newHostPort = newHost + ":" + endpoint.Port()
mapIfNotPresent(hostAnonymizer, endpoint.Host, newHostPort)
mapIfNotPresent(hostAnonymizer, schemePfx+endpoint.Host, newHostPort)
}
newHostPortPath := newHostPort
if len(endpoint.Path) > 0 {
// Host + port + path
currentHostPortPath := endpoint.Host + endpoint.Path
newHostPortPath = newHostPort + endpoint.Path
mapIfNotPresent(hostAnonymizer, currentHostPortPath, newHostPortPath)
mapIfNotPresent(hostAnonymizer, schemePfx+currentHostPortPath, newHostPortPath)
}
// Full url
hostAnonymizer[currentURL] = schemePfx + newHostPortPath
}
}
// createHostAnonymizer - Creats a map of various strings to corresponding anonymized names
func createHostAnonymizer() map[string]string {
if !globalIsDistErasure {
return createHostAnonymizerForFSMode()
}
hostAnonymizer := map[string]string{}
hosts := set.NewStringSet()
srvrIdx := 0
for poolIdx, pool := range globalEndpoints {
for _, endpoint := range pool.Endpoints {
if !hosts.Contains(endpoint.Host) {
hosts.Add(endpoint.Host)
srvrIdx++
}
anonymizeHost(hostAnonymizer, endpoint, poolIdx+1, srvrIdx)
}
}
return hostAnonymizer
}