mirror of
https://github.com/labring/sealos.git
synced 2026-09-21 22:11:45 +08:00
123 lines
3.0 KiB
Go
123 lines
3.0 KiB
Go
// Copyright © 2021 Alibaba Group Holding Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package ssh
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import (
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"bufio"
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"fmt"
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"io"
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"strings"
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"sync"
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strings2 "github.com/labring/sealos/pkg/utils/strings"
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)
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func (s *SSH) Ping(host string) error {
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client, _, err := s.Connect(host)
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if err != nil {
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return fmt.Errorf("[ssh %s]create ssh session failed, %v", host, err)
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}
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err = client.Close()
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if err != nil {
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return err
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}
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return nil
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}
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func (s *SSH) CmdAsync(host string, cmds ...string) error {
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for _, cmd := range cmds {
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if cmd == "" {
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continue
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}
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if err := func(cmd string) error {
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client, session, err := s.Connect(host)
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if err != nil {
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return fmt.Errorf("failed to create ssh session for %s: %v", host, err)
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}
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defer client.Close()
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defer session.Close()
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stdout, err := session.StdoutPipe()
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if err != nil {
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return fmt.Errorf("failed to create stdout pipe for %s: %v", host, err)
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}
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stderr, err := session.StderrPipe()
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if err != nil {
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return fmt.Errorf("failed to create stderr pipe for %s: %v", host, err)
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}
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if err := session.Start(cmd); err != nil {
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return fmt.Errorf("failed to start command %s on %s: %v", cmd, host, err)
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}
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var combineSlice []string
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var combineLock sync.Mutex
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doneout := make(chan error, 1)
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doneerr := make(chan error, 1)
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go func() {
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doneerr <- readPipe(host, stderr, &combineSlice, &combineLock, s.isStdout)
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}()
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go func() {
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doneout <- readPipe(host, stdout, &combineSlice, &combineLock, s.isStdout)
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}()
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<-doneerr
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<-doneout
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err = session.Wait()
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if err != nil {
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return strings2.WrapExecResult(host, cmd, []byte(strings.Join(combineSlice, "\n")), err)
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}
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return nil
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}(cmd); err != nil {
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return err
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}
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}
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return nil
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}
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func (s *SSH) Cmd(host, cmd string) ([]byte, error) {
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client, session, err := s.Connect(host)
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if err != nil {
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return nil, fmt.Errorf("[ssh][%s] create ssh session failed, %s", host, err)
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}
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defer client.Close()
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defer session.Close()
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b, err := session.CombinedOutput(cmd)
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if err != nil {
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return b, fmt.Errorf("[ssh][%s]run command failed [%s]", host, cmd)
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}
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return b, nil
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}
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func readPipe(host string, pipe io.Reader, combineSlice *[]string, combineLock *sync.Mutex, isStdout bool) error {
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r := bufio.NewReader(pipe)
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for {
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line, _, err := r.ReadLine()
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if err != nil {
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return err
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}
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combineLock.Lock()
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*combineSlice = append(*combineSlice, string(line))
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if isStdout {
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fmt.Printf("%s: %s\n", host, string(line))
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}
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combineLock.Unlock()
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}
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}
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