148 lines
3.9 KiB
Go
148 lines
3.9 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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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 madmin
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import (
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"context"
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"encoding/json"
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"net/http"
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"net/url"
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"strconv"
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"time"
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trace "github.com/minio/minio/pkg/trace"
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)
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// ServiceRestart - restarts the MinIO cluster
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func (adm *AdminClient) ServiceRestart(ctx context.Context) error {
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return adm.serviceCallAction(ctx, ServiceActionRestart)
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}
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// ServiceStop - stops the MinIO cluster
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func (adm *AdminClient) ServiceStop(ctx context.Context) error {
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return adm.serviceCallAction(ctx, ServiceActionStop)
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}
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// ServiceAction - type to restrict service-action values
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type ServiceAction string
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const (
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// ServiceActionRestart represents restart action
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ServiceActionRestart ServiceAction = "restart"
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// ServiceActionStop represents stop action
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ServiceActionStop = "stop"
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)
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// serviceCallAction - call service restart/update/stop API.
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func (adm *AdminClient) serviceCallAction(ctx context.Context, action ServiceAction) error {
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queryValues := url.Values{}
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queryValues.Set("action", string(action))
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// Request API to Restart server
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resp, err := adm.executeMethod(ctx,
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http.MethodPost, requestData{
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relPath: adminAPIPrefix + "/service",
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queryValues: queryValues,
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},
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)
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defer closeResponse(resp)
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if err != nil {
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return err
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}
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if resp.StatusCode != http.StatusOK {
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return httpRespToErrorResponse(resp)
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}
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return nil
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}
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// ServiceTraceInfo holds http trace
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type ServiceTraceInfo struct {
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Trace trace.Info
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Err error `json:"-"`
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}
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// ServiceTraceOpts holds tracing options
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type ServiceTraceOpts struct {
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All bool // Deprecated
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S3 bool
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Internal bool
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Storage bool
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OS bool
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OnlyErrors bool
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Threshold time.Duration
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}
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// ServiceTrace - listen on http trace notifications.
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func (adm AdminClient) ServiceTrace(ctx context.Context, opts ServiceTraceOpts) <-chan ServiceTraceInfo {
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traceInfoCh := make(chan ServiceTraceInfo)
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// Only success, start a routine to start reading line by line.
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go func(traceInfoCh chan<- ServiceTraceInfo) {
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defer close(traceInfoCh)
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for {
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urlValues := make(url.Values)
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urlValues.Set("err", strconv.FormatBool(opts.OnlyErrors))
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urlValues.Set("threshold", opts.Threshold.String())
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if opts.All {
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// Deprecated flag
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urlValues.Set("all", "true")
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} else {
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urlValues.Set("s3", strconv.FormatBool(opts.S3))
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urlValues.Set("internal", strconv.FormatBool(opts.Internal))
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urlValues.Set("storage", strconv.FormatBool(opts.Storage))
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urlValues.Set("os", strconv.FormatBool(opts.OS))
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}
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reqData := requestData{
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relPath: adminAPIPrefix + "/trace",
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queryValues: urlValues,
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}
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// Execute GET to call trace handler
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resp, err := adm.executeMethod(ctx, http.MethodGet, reqData)
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if err != nil {
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closeResponse(resp)
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traceInfoCh <- ServiceTraceInfo{Err: err}
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return
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}
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if resp.StatusCode != http.StatusOK {
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traceInfoCh <- ServiceTraceInfo{Err: httpRespToErrorResponse(resp)}
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return
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}
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dec := json.NewDecoder(resp.Body)
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for {
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var info trace.Info
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if err = dec.Decode(&info); err != nil {
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break
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}
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select {
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case <-ctx.Done():
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return
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case traceInfoCh <- ServiceTraceInfo{Trace: info}:
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}
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}
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}
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}(traceInfoCh)
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// Returns the trace info channel, for caller to start reading from.
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return traceInfoCh
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}
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