mirror of
https://github.com/minio/mc.git
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137 lines
3.5 KiB
Go
137 lines
3.5 KiB
Go
// Copyright (c) 2015-2022 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 cmd
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import (
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"context"
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"os"
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tea "github.com/charmbracelet/bubbletea"
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"github.com/minio/cli"
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"github.com/minio/madmin-go"
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"github.com/minio/mc/pkg/probe"
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)
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var supportTopAPIFlags = []cli.Flag{
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cli.StringSliceFlag{
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Name: "name",
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Usage: "summarize current calls for matching API name",
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},
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cli.StringSliceFlag{
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Name: "path",
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Usage: "summarize current API calls only on matching path",
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},
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cli.StringSliceFlag{
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Name: "node",
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Usage: "summarize current API calls only on matching servers",
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},
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cli.BoolFlag{
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Name: "errors, e",
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Usage: "summarize current API calls throwing only errors",
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},
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}
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var supportTopAPICmd = cli.Command{
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Name: "api",
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Usage: "summarize API events on MinIO server in real-time",
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Action: mainSupportTopAPI,
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OnUsageError: onUsageError,
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Before: setGlobalsFromContext,
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Flags: append(supportTopAPIFlags, globalFlags...),
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HideHelpCommand: true,
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CustomHelpTemplate: `NAME:
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{{.HelpName}} - {{.Usage}}
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USAGE:
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{{.HelpName}} [FLAGS] TARGET
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FLAGS:
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{{range .VisibleFlags}}{{.}}
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{{end}}
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EXAMPLES:
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1. Display current in-progress all S3 API calls.
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{{.Prompt}} {{.HelpName}} myminio/
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2. Display current in-progress all 's3.PutObject' API calls.
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{{.Prompt}} {{.HelpName}} --name s3.PutObject myminio/
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`,
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}
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// checkSupportTopAPISyntax - validate all the passed arguments
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func checkSupportTopAPISyntax(ctx *cli.Context) {
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if len(ctx.Args()) == 0 || len(ctx.Args()) > 1 {
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cli.ShowCommandHelpAndExit(ctx, "api", 1) // last argument is exit code
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}
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}
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func mainSupportTopAPI(ctx *cli.Context) error {
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checkSupportTopAPISyntax(ctx)
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aliasedURL := ctx.Args().Get(0)
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// Create a new MinIO Admin Client
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client, err := newAdminClient(aliasedURL)
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if err != nil {
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fatalIf(err.Trace(aliasedURL), "Unable to initialize admin client.")
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return nil
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}
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ctxt, cancel := context.WithCancel(globalContext)
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defer cancel()
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opts, e := tracingOpts(ctx, ctx.StringSlice("call"))
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fatalIf(probe.NewError(e), "Unable to start tracing")
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mopts := matchOpts{
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funcNames: ctx.StringSlice("name"),
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apiPaths: ctx.StringSlice("path"),
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nodes: ctx.StringSlice("node"),
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}
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// Start listening on all trace activity.
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traceCh := client.ServiceTrace(ctxt, opts)
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done := make(chan struct{})
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p := tea.NewProgram(initTraceUI())
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go func() {
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if e := p.Start(); e != nil {
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os.Exit(1)
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}
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close(done)
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}()
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go func() {
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for apiCallInfo := range traceCh {
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if apiCallInfo.Err != nil {
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fatalIf(probe.NewError(apiCallInfo.Err), "Unable to fetch top API events")
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}
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if matchTrace(mopts, apiCallInfo) {
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p.Send(topAPIResult{
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apiCallInfo: apiCallInfo,
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})
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}
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p.Send(topAPIResult{
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apiCallInfo: madmin.ServiceTraceInfo{},
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})
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}
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}()
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<-done
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return nil
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}
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