95 lines
2.8 KiB
Go
95 lines
2.8 KiB
Go
// This file is part of MinIO Console Server
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// Copyright (c) 2021 MinIO, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package restapi
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import (
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"context"
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"encoding/json"
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"log"
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"net/http"
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"time"
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"errors"
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"github.com/gorilla/websocket"
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madmin "github.com/minio/minio/pkg/madmin"
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)
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// startHealthInfo starts fetching mc.ServerHealthInfo and
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// sends messages with the corresponding data on the websocket connection
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func startHealthInfo(ctx context.Context, conn WSConn, client MinioAdmin, deadline *time.Duration) error {
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if deadline == nil {
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return errors.New("duration can't be nil on startHealthInfo")
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}
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// Fetch info of all servers (cluster or single server)
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healthDataTypes := []madmin.HealthDataType{
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madmin.HealthDataTypePerfDrive,
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madmin.HealthDataTypePerfNet,
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madmin.HealthDataTypeMinioInfo,
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madmin.HealthDataTypeMinioConfig,
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madmin.HealthDataTypeSysCPU,
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madmin.HealthDataTypeSysDiskHw,
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madmin.HealthDataTypeSysDocker,
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madmin.HealthDataTypeSysOsInfo,
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madmin.HealthDataTypeSysLoad,
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madmin.HealthDataTypeSysMem,
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madmin.HealthDataTypeSysNet,
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madmin.HealthDataTypeSysProcess,
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}
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healthChan := client.serverHealthInfo(ctx, healthDataTypes, *deadline)
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// wait for events to occur
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for {
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select {
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// return if context ends
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case <-ctx.Done():
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return nil
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case adminHealthInfo, ok := <-healthChan:
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// zero value returned because the channel is closed and empty
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if !ok {
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return nil
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}
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if adminHealthInfo.Error != "" {
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return errors.New(adminHealthInfo.Error)
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}
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// Serialize message to be sent
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bytes, err := json.Marshal(adminHealthInfo)
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if err != nil {
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log.Println("error on json.Marshal:", err)
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return err
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}
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// Send Message through websocket connection
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err = conn.writeMessage(websocket.TextMessage, bytes)
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if err != nil {
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log.Println("error writeMessage:", err)
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return err
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}
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}
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}
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}
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// getHealthInfoOptionsFromReq gets duration for startHealthInfo request
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// path come as : `/health-info?deadline=2h`
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func getHealthInfoOptionsFromReq(req *http.Request) (*time.Duration, error) {
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deadlineDuration, err := time.ParseDuration(req.FormValue("deadline"))
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if err != nil {
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return nil, err
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}
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return &deadlineDuration, nil
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}
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