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status_command.go
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/
status_command.go
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/*
Copyright 2018 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 (
"fmt"
"strings"
"github.com/gravitational/kingpin"
"github.com/gravitational/teleport"
"github.com/gravitational/teleport/lib/asciitable"
"github.com/gravitational/teleport/lib/auth"
"github.com/gravitational/teleport/lib/service"
"github.com/gravitational/teleport/lib/services"
"github.com/gravitational/trace"
)
// StatusCommand implements `tctl token` group of commands.
type StatusCommand struct {
config *service.Config
// CLI clauses (subcommands)
status *kingpin.CmdClause
}
// Initialize allows StatusCommand to plug itself into the CLI parser.
func (c *StatusCommand) Initialize(app *kingpin.Application, config *service.Config) {
c.config = config
c.status = app.Command("status", "Report cluster status")
}
// TryRun takes the CLI command as an argument (like "nodes ls") and executes it.
func (c *StatusCommand) TryRun(cmd string, client auth.ClientI) (match bool, err error) {
switch cmd {
case c.status.FullCommand():
err = c.Status(client)
default:
return false, nil
}
return true, trace.Wrap(err)
}
// Status is called to execute "status" CLI command.
func (c *StatusCommand) Status(client auth.ClientI) error {
clusterNameResource, err := client.GetClusterName()
if err != nil {
return trace.Wrap(err)
}
clusterName := clusterNameResource.GetClusterName()
hostCAs, err := client.GetCertAuthorities(services.HostCA, false)
if err != nil {
return trace.Wrap(err)
}
userCAs, err := client.GetCertAuthorities(services.UserCA, false)
if err != nil {
return trace.Wrap(err)
}
// Calculate the CA pin for this cluster. The CA pin is used by the client
// to verify the identity of the Auth Server.
caPin, err := calculateCAPin(client)
if err != nil {
return trace.Wrap(err)
}
authorities := append(userCAs, hostCAs...)
view := func() string {
table := asciitable.MakeHeadlessTable(2)
table.AddRow([]string{"Cluster", clusterName})
for _, ca := range authorities {
if ca.GetClusterName() != clusterName {
continue
}
info := fmt.Sprintf("%v CA ", strings.Title(string(ca.GetType())))
rotation := ca.GetRotation()
if c.config.Debug {
table.AddRow([]string{info,
fmt.Sprintf("%v, update_servers: %v, complete: %v",
rotation.String(),
rotation.Schedule.UpdateServers.Format(teleport.HumanDateFormatSeconds),
rotation.Schedule.Standby.Format(teleport.HumanDateFormatSeconds),
)})
} else {
table.AddRow([]string{info, rotation.String()})
}
}
table.AddRow([]string{"CA pin", caPin})
return table.AsBuffer().String()
}
fmt.Printf(view())
// in debug mode, output mode of remote certificate authorities
if c.config.Debug {
view := func() string {
table := asciitable.MakeHeadlessTable(2)
for _, ca := range authorities {
if ca.GetClusterName() == clusterName {
continue
}
info := fmt.Sprintf("Remote %v CA %q", strings.Title(string(ca.GetType())), ca.GetClusterName())
rotation := ca.GetRotation()
table.AddRow([]string{info, rotation.String()})
}
return "Remote clusters\n\n" + table.AsBuffer().String()
}
fmt.Printf(view())
}
return nil
}