OP#792 initial commit after fork

cmd/admin-server-info.go

@@ -0,0 +1,171 @@
+// Copyright (c) 2015-2024 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 <http://www.gnu.org/licenses/>.
+
+package cmd
+
+import (
+	"math"
+	"net/http"
+	"os"
+	"runtime"
+	"runtime/debug"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/minio/madmin-go/v3"
+	"github.com/minio/minio/internal/config"
+	"github.com/minio/minio/internal/kms"
+	xnet "github.com/minio/pkg/v3/net"
+)
+
+// getLocalServerProperty - returns madmin.ServerProperties for only the
+// local endpoints from given list of endpoints
+func getLocalServerProperty(endpointServerPools EndpointServerPools, r *http.Request, metrics bool) madmin.ServerProperties {
+	addr := globalLocalNodeName
+	if r != nil {
+		addr = r.Host
+	}
+	if globalIsDistErasure {
+		addr = globalLocalNodeName
+	}
+	poolNumbers := make(map[int]struct{})
+	network := make(map[string]string)
+	for _, ep := range endpointServerPools {
+		for _, endpoint := range ep.Endpoints {
+			if endpoint.IsLocal {
+				poolNumbers[endpoint.PoolIdx+1] = struct{}{}
+			}
+			nodeName := endpoint.Host
+			if nodeName == "" {
+				nodeName = addr
+			}
+			if endpoint.IsLocal {
+				// Only proceed for local endpoints
+				network[nodeName] = string(madmin.ItemOnline)
+				continue
+			}
+			_, present := network[nodeName]
+			if !present {
+				if err := isServerResolvable(endpoint, 5*time.Second); err == nil {
+					network[nodeName] = string(madmin.ItemOnline)
+				} else {
+					if xnet.IsNetworkOrHostDown(err, false) {
+						network[nodeName] = string(madmin.ItemOffline)
+					} else if xnet.IsNetworkOrHostDown(err, true) {
+						network[nodeName] = "connection attempt timedout"
+					}
+				}
+			}
+		}
+	}
+
+	var memstats runtime.MemStats
+	runtime.ReadMemStats(&memstats)
+
+	gcStats := debug.GCStats{
+		// If stats.PauseQuantiles is non-empty, ReadGCStats fills
+		// it with quantiles summarizing the distribution of pause time.
+		// For example, if len(stats.PauseQuantiles) is 5, it will be
+		// filled with the minimum, 25%, 50%, 75%, and maximum pause times.
+		PauseQuantiles: make([]time.Duration, 5),
+	}
+	debug.ReadGCStats(&gcStats)
+	// Truncate GC stats to max 5 entries.
+	if len(gcStats.PauseEnd) > 5 {
+		gcStats.PauseEnd = gcStats.PauseEnd[len(gcStats.PauseEnd)-5:]
+	}
+	if len(gcStats.Pause) > 5 {
+		gcStats.Pause = gcStats.Pause[len(gcStats.Pause)-5:]
+	}
+
+	props := madmin.ServerProperties{
+		Endpoint: addr,
+		Uptime:   UTCNow().Unix() - globalBootTime.Unix(),
+		Version:  Version,
+		CommitID: CommitID,
+		Network:  network,
+		MemStats: madmin.MemStats{
+			Alloc:      memstats.Alloc,
+			TotalAlloc: memstats.TotalAlloc,
+			Mallocs:    memstats.Mallocs,
+			Frees:      memstats.Frees,
+			HeapAlloc:  memstats.HeapAlloc,
+		},
+		GoMaxProcs:     runtime.GOMAXPROCS(0),
+		NumCPU:         runtime.NumCPU(),
+		RuntimeVersion: runtime.Version(),
+		GCStats: &madmin.GCStats{
+			LastGC:     gcStats.LastGC,
+			NumGC:      gcStats.NumGC,
+			PauseTotal: gcStats.PauseTotal,
+			Pause:      gcStats.Pause,
+			PauseEnd:   gcStats.PauseEnd,
+		},
+		MinioEnvVars: make(map[string]string, 10),
+	}
+
+	for poolNumber := range poolNumbers {
+		props.PoolNumbers = append(props.PoolNumbers, poolNumber)
+	}
+	sort.Ints(props.PoolNumbers)
+	props.PoolNumber = func() int {
+		if len(props.PoolNumbers) == 1 {
+			return props.PoolNumbers[0]
+		}
+		return math.MaxInt // this indicates that its unset.
+	}()
+
+	sensitive := map[string]struct{}{
+		config.EnvAccessKey:         {},
+		config.EnvSecretKey:         {},
+		config.EnvRootUser:          {},
+		config.EnvRootPassword:      {},
+		config.EnvMinIOSubnetAPIKey: {},
+		kms.EnvKMSSecretKey:         {},
+	}
+	for _, v := range os.Environ() {
+		if !strings.HasPrefix(v, "MINIO") && !strings.HasPrefix(v, "_MINIO") {
+			continue
+		}
+		split := strings.SplitN(v, "=", 2)
+		key := split[0]
+		value := ""
+		if len(split) > 1 {
+			value = split[1]
+		}
+
+		// Do not send sensitive creds.
+		if _, ok := sensitive[key]; ok || strings.Contains(strings.ToLower(key), "password") || strings.HasSuffix(strings.ToLower(key), "key") {
+			props.MinioEnvVars[key] = "*** EXISTS, REDACTED ***"
+			continue
+		}
+		props.MinioEnvVars[key] = value
+	}
+
+	objLayer := newObjectLayerFn()
+	if objLayer != nil {
+		storageInfo := objLayer.LocalStorageInfo(GlobalContext, metrics)
+		props.State = string(madmin.ItemOnline)
+		props.Disks = storageInfo.Disks
+	} else {
+		props.State = string(madmin.ItemInitializing)
+		props.Disks = getOfflineDisks("", globalEndpoints)
+	}
+
+	return props
+}