teleport/tool/tctl/common/proxy_command.go
2023-08-01 17:11:46 +00:00

80 lines
2.2 KiB
Go

// Copyright 2022 Gravitational, Inc
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package common
import (
"context"
"os"
"github.com/alecthomas/kingpin/v2"
"github.com/gravitational/trace"
"github.com/gravitational/teleport"
"github.com/gravitational/teleport/lib/auth"
"github.com/gravitational/teleport/lib/service/servicecfg"
)
// ProxyCommand returns information about connected proxies
type ProxyCommand struct {
config *servicecfg.Config
lsCmd *kingpin.CmdClause
format string
}
// Initialize creates the proxy command and subcommands
func (p *ProxyCommand) Initialize(app *kingpin.Application, config *servicecfg.Config) {
p.config = config
proxyCommand := app.Command("proxy", "Operations with information for cluster proxies.").Hidden()
p.lsCmd = proxyCommand.Command("ls", "Lists proxies connected to the cluster.")
p.lsCmd.Flag("format", "Output format: 'yaml', 'json' or 'text'").Default(teleport.YAML).StringVar(&p.format)
}
// ListProxies prints currently connected proxies
func (p *ProxyCommand) ListProxies(ctx context.Context, clusterAPI auth.ClientI) error {
proxies, err := clusterAPI.GetProxies()
if err != nil {
return trace.Wrap(err)
}
sc := &serverCollection{proxies}
switch p.format {
case teleport.Text:
// proxies don't have labels.
verbose := false
return sc.writeText(os.Stdout, verbose)
case teleport.YAML:
return writeYAML(sc, os.Stdout)
case teleport.JSON:
return writeJSON(sc, os.Stdout)
}
return nil
}
// TryRun runs the proxy command
func (p *ProxyCommand) TryRun(ctx context.Context, cmd string, client auth.ClientI) (match bool, err error) {
switch cmd {
case p.lsCmd.FullCommand():
err = p.ListProxies(ctx, client)
default:
return false, nil
}
return true, trace.Wrap(err)
}