github.com/sealerio/sealer@v0.11.1-0.20240507115618-f4f89c5853ae/utils/ssh/platform.go (about)

     1  // Copyright © 2022 Alibaba Group Holding Ltd.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package ssh
    16  
    17  import (
    18  	"bufio"
    19  	"fmt"
    20  	"net"
    21  	"strings"
    22  
    23  	v1 "github.com/sealerio/sealer/types/api/v1"
    24  	utilsnet "github.com/sealerio/sealer/utils/net"
    25  	"github.com/sealerio/sealer/utils/platform"
    26  
    27  	"github.com/pkg/errors"
    28  	"github.com/sirupsen/logrus"
    29  )
    30  
    31  func (s *SSH) GetPlatform(host net.IP) (v1.Platform, error) {
    32  	if utilsnet.IsLocalIP(host, s.LocalAddress) {
    33  		return platform.GetDefaultPlatform(), nil
    34  	}
    35  
    36  	p := v1.Platform{}
    37  	archResult, err := s.CmdToString(host, nil, "uname -m", "")
    38  	if err != nil {
    39  		return p, err
    40  	}
    41  	osResult, err := s.CmdToString(host, nil, "uname", "")
    42  	if err != nil {
    43  		return p, err
    44  	}
    45  	p.OS = strings.ToLower(strings.TrimSpace(osResult))
    46  	switch strings.ToLower(strings.TrimSpace(archResult)) {
    47  	case "x86_64":
    48  		p.Architecture = platform.AMD
    49  	case "aarch64":
    50  		p.Architecture = platform.ARM64
    51  	case "armv7l":
    52  		p.Architecture = "arm-v7"
    53  	case "armv6l":
    54  		p.Architecture = "arm-v6"
    55  	default:
    56  		return p, fmt.Errorf("unrecognized architecture: %s", archResult)
    57  	}
    58  	if p.Architecture != platform.AMD {
    59  		p.Variant, err = s.getCPUVariant(p.OS, p.Architecture, host)
    60  		if err != nil {
    61  			return p, err
    62  		}
    63  	}
    64  	remotePlatform, err := platform.Parse(platform.Format(p))
    65  	if err != nil {
    66  		return p, err
    67  	}
    68  	return platform.Normalize(remotePlatform), nil
    69  }
    70  
    71  func (s *SSH) getCPUInfo(host net.IP, pattern string) (info string, err error) {
    72  	sftpClient, err := s.sftpConnect(host)
    73  	if err != nil {
    74  		return "", fmt.Errorf("failed to new sftp client: %v", err)
    75  	}
    76  
    77  	// open remote source file
    78  	srcFile, err := sftpClient.Open("/proc/cpuinfo")
    79  	if err != nil {
    80  		return "", fmt.Errorf("failed to open /proc/cpuinfo: %v", err)
    81  	}
    82  	defer func() {
    83  		if err := srcFile.Close(); err != nil {
    84  			logrus.Warnf("failed to close file: %v", err)
    85  		}
    86  	}()
    87  	scanner := bufio.NewScanner(srcFile)
    88  	for scanner.Scan() {
    89  		newline := scanner.Text()
    90  		list := strings.Split(newline, ":")
    91  
    92  		if len(list) > 1 && strings.EqualFold(strings.TrimSpace(list[0]), pattern) {
    93  			return strings.TrimSpace(list[1]), nil
    94  		}
    95  	}
    96  	// Check whether the scanner encountered errors
    97  	err = scanner.Err()
    98  	if err != nil {
    99  		return "", err
   100  	}
   101  	return "", errors.Wrapf(platform.ErrNotFound, "getCPUInfo for pattern: %s", pattern)
   102  }
   103  
   104  func (s *SSH) getCPUVariant(os, arch string, host net.IP) (string, error) {
   105  	variant, err := s.getCPUInfo(host, "Cpu architecture")
   106  	if err != nil {
   107  		return "", err
   108  	}
   109  	model, err := s.getCPUInfo(host, "model name")
   110  	if err != nil {
   111  		if !strings.Contains(err.Error(), platform.ErrNotFound.Error()) {
   112  			return "", err
   113  		}
   114  	}
   115  	variant, model = platform.NormalizeArch(variant, model)
   116  	return platform.GetCPUVariantByInfo(os, arch, variant, model), nil
   117  }