mirror of
https://github.com/gravitational/teleport.git
synced 2026-09-21 14:35:22 +08:00
Edoardo Spadolini
bcbfa8192e
* Get rid of math/rand in favor of math/rand/v2 * Update retryutils to use rand.N * Update e ref
88 lines
2.5 KiB
Go
88 lines
2.5 KiB
Go
/*
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* Teleport
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* Copyright (C) 2023 Gravitational, 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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*/
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package benchmark
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import (
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"context"
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"math/rand/v2"
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"github.com/gravitational/trace"
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apiclient "github.com/gravitational/teleport/api/client"
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"github.com/gravitational/teleport/api/types"
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"github.com/gravitational/teleport/lib/client"
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)
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// SSHBenchmark is a benchmark suite that connects to the configured
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// target hosts and executes the provided command.
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type SSHBenchmark struct {
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// Command to execute on the host.
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Command []string
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// Random whether to connect to a random host or not
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Random bool
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}
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// BenchBuilder returns a WorkloadFunc for the given benchmark suite.
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func (s SSHBenchmark) BenchBuilder(ctx context.Context, tc *client.TeleportClient) (WorkloadFunc, error) {
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var resources []types.Server
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if s.Random {
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if tc.Host != "all" {
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return nil, trace.BadParameter("random ssh bench commands must use the format <user>@all <command>")
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}
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clt, err := tc.ConnectToCluster(ctx)
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if err != nil {
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return nil, trace.Wrap(err)
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}
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defer clt.Close()
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resources, err = apiclient.GetAllResources[types.Server](ctx, clt.AuthClient, tc.ResourceFilter(types.KindNode))
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if err != nil {
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return nil, trace.Wrap(err)
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}
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if len(resources) == 0 {
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return nil, trace.BadParameter("no target hosts available")
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}
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}
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return func(ctx context.Context) error {
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var opts []func(*client.SSHOptions)
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if len(resources) > 0 {
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opts = append(opts, client.WithHostAddress(chooseRandomHost(resources)))
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}
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return tc.SSH(ctx, s.Command, opts...)
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}, nil
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}
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// chooseRandomHost returns a random hostport from the given slice.
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func chooseRandomHost(hosts []types.Server) string {
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switch len(hosts) {
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case 0:
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return ""
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case 1:
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name := hosts[0].GetName()
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return name + ":0"
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default:
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name := hosts[rand.N(len(hosts))].GetName()
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return name + ":0"
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}
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}
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