mirror of
https://github.com/kubesphere/kubekey.git
synced 2025-12-25 17:12:50 +00:00
132 lines
3.2 KiB
Go
132 lines
3.2 KiB
Go
/*
|
|
Copyright 2023 The KubeSphere Authors.
|
|
|
|
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 connector
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"io/fs"
|
|
"path/filepath"
|
|
"strconv"
|
|
|
|
"github.com/pkg/sftp"
|
|
"golang.org/x/crypto/ssh"
|
|
"k8s.io/klog/v2"
|
|
"k8s.io/utils/pointer"
|
|
)
|
|
|
|
type sshConnector struct {
|
|
Host string
|
|
Port *int
|
|
User *string
|
|
Password *string
|
|
client *ssh.Client
|
|
}
|
|
|
|
func (c *sshConnector) Init(ctx context.Context) error {
|
|
if c.Host == "" {
|
|
return fmt.Errorf("host is not set")
|
|
}
|
|
if c.Port == nil {
|
|
c.Port = pointer.Int(22)
|
|
}
|
|
var auth []ssh.AuthMethod
|
|
if c.Password != nil {
|
|
auth = []ssh.AuthMethod{
|
|
ssh.Password(*c.Password),
|
|
}
|
|
}
|
|
sshClient, err := ssh.Dial("tcp", fmt.Sprintf("%s:%s", c.Host, strconv.Itoa(*c.Port)), &ssh.ClientConfig{
|
|
User: pointer.StringDeref(c.User, ""),
|
|
Auth: auth,
|
|
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
c.client = sshClient
|
|
|
|
return nil
|
|
}
|
|
|
|
func (c *sshConnector) Close(ctx context.Context) error {
|
|
return c.client.Close()
|
|
}
|
|
|
|
func (c *sshConnector) CopyFile(ctx context.Context, src []byte, remoteFile string, mode fs.FileMode) error {
|
|
// create sftp client
|
|
sftpClient, err := sftp.NewClient(c.client)
|
|
if err != nil {
|
|
klog.Errorf("Failed to create sftp client: %v", err)
|
|
return err
|
|
}
|
|
defer sftpClient.Close()
|
|
// create remote file
|
|
if _, err := sftpClient.Stat(filepath.Dir(remoteFile)); err != nil {
|
|
klog.Warningf("Failed to stat dir %s: %v create it", filepath.Dir(remoteFile), err)
|
|
if err := sftpClient.MkdirAll(filepath.Dir(remoteFile)); err != nil {
|
|
klog.Errorf("Failed to create dir %s: %v", filepath.Dir(remoteFile), err)
|
|
return err
|
|
}
|
|
}
|
|
rf, err := sftpClient.Create(remoteFile)
|
|
if err != nil {
|
|
klog.Errorf("Failed to create file %s: %v", remoteFile, err)
|
|
return err
|
|
}
|
|
defer rf.Close()
|
|
|
|
if _, err = rf.Write(src); err != nil {
|
|
klog.Errorf("Failed to write file %s: %v", remoteFile, err)
|
|
return err
|
|
}
|
|
return rf.Chmod(mode)
|
|
}
|
|
|
|
func (c *sshConnector) FetchFile(ctx context.Context, remoteFile string, local io.Writer) error {
|
|
// create sftp client
|
|
sftpClient, err := sftp.NewClient(c.client)
|
|
if err != nil {
|
|
klog.Errorf("Failed to create sftp client: %v", err)
|
|
return err
|
|
}
|
|
defer sftpClient.Close()
|
|
rf, err := sftpClient.Open(remoteFile)
|
|
if err != nil {
|
|
klog.Errorf("Failed to open file %s: %v", remoteFile, err)
|
|
return err
|
|
}
|
|
defer rf.Close()
|
|
if _, err := io.Copy(local, rf); err != nil {
|
|
klog.Errorf("Failed to copy file %s: %v", remoteFile, err)
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (c *sshConnector) ExecuteCommand(ctx context.Context, cmd string) ([]byte, error) {
|
|
// create ssh session
|
|
session, err := c.client.NewSession()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer session.Close()
|
|
|
|
return session.CombinedOutput(cmd)
|
|
}
|