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// Copyright 2023 PingCAP, 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package manager
import (
"context"
"errors"
"fmt"
"os"
"github.com/joomcode/errorx"
perrs "github.com/pingcap/errors"
"github.com/pingcap/tiup/pkg/cluster/ctxt"
operator "github.com/pingcap/tiup/pkg/cluster/operation"
"github.com/pingcap/tiup/pkg/cluster/spec"
"github.com/pingcap/tiup/pkg/cluster/task"
"github.com/pingcap/tiup/pkg/meta"
"github.com/pingcap/tiup/pkg/tui"
)
// RotateSSH rotate public keys of target nodes
func (m *Manager) RotateSSH(name string, gOpt operator.Options, skipConfirm bool) error {
metadata, err := m.meta(name)
if err != nil && !errors.Is(perrs.Cause(err), meta.ErrValidate) &&
!errors.Is(perrs.Cause(err), spec.ErrNoTiSparkMaster) {
return err
}
topo := metadata.GetTopology()
base := metadata.GetBaseMeta()
if !skipConfirm {
if err := tui.PromptForConfirmOrAbortError(
"This operation will rotate ssh keys for user '%s' .\nDo you want to continue? [y/N]:",
base.User); err != nil {
return err
}
}
var rotateSSHTasks []*task.StepDisplay // tasks which are used to initialize environment
uniqueHosts, _ := getMonitorHosts(topo)
for host, hostInfo := range uniqueHosts {
t, err := m.sshTaskBuilder(name, topo, base.User, gOpt)
if err != nil {
return err
}
t = t.RotateSSH(host, base.User, m.specManager.Path(name, "ssh", "new.pub"))
rotateSSHTasks = append(rotateSSHTasks, t.BuildAsStep(fmt.Sprintf(" - Rotate ssh key on %s:%d", host, hostInfo.ssh)))
}
builder := task.NewBuilder(m.logger).
Step("+ Generate new SSH keys",
task.NewBuilder(m.logger).
SSHKeyGen(m.specManager.Path(name, "ssh", "new")).
Build(),
m.logger).
ParallelStep("+ rotate ssh keys of target host environments", false, rotateSSHTasks...).
Step("+ overwrite old SSH keys",
task.NewBuilder(m.logger).
Func("rename", func(ctx context.Context) error {
err := os.Rename(m.specManager.Path(name, "ssh", "new.pub"), m.specManager.Path(name, "ssh", "id_rsa.pub"))
if err != nil {
return err
}
err = os.Rename(m.specManager.Path(name, "ssh", "new"), m.specManager.Path(name, "ssh", "id_rsa"))
if err != nil {
return err
}
return nil
}).
Build(),
m.logger)
ctx := ctxt.New(
context.Background(),
gOpt.Concurrency,
m.logger,
)
if err := builder.Build().Execute(ctx); err != nil {
if errorx.Cast(err) != nil {
// FIXME: Map possible task errors and give suggestions.
return err
}
return err
}
m.logger.Infof("ssh keys are successfully updated")
return nil
}
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