yunion.io/x/cloudmux@v0.3.10-0-alpha.1/cmd/hcsocli/main.go (about)

     1  // Copyright 2019 Yunion
     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 main
    16  
    17  import (
    18  	"fmt"
    19  	"net/http"
    20  	"net/url"
    21  	"os"
    22  
    23  	"golang.org/x/net/http/httpproxy"
    24  
    25  	"yunion.io/x/structarg"
    26  
    27  	"yunion.io/x/cloudmux/pkg/cloudprovider"
    28  	huawei "yunion.io/x/cloudmux/pkg/multicloud/hcso"
    29  	_ "yunion.io/x/cloudmux/pkg/multicloud/hcso/shell"
    30  	"yunion.io/x/onecloud/pkg/util/shellutils"
    31  )
    32  
    33  type BaseOptions struct {
    34  	cloudprovider.SHCSOEndpoints
    35  	Debug          bool   `help:"Show debug" default:"false"`
    36  	AccessKey      string `help:"Access key" default:"$HUAWEI_ACCESS_KEY" metavar:"HUAWEI_ACCESS_KEY"`
    37  	Secret         string `help:"Secret" default:"$HUAWEI_SECRET" metavar:"HUAWEI_SECRET"`
    38  	RegionId       string `help:"RegionId" default:"$HUAWEI_REGION" metavar:"HUAWEI_REGION"`
    39  	DEFAULT_REGION string `help:"Default Region" default:"$HUAWEI_DEFAULT_REGION" metavar:"HUAWEI_DEFAULT_REGION"`
    40  	ProjectId      string `help:"ProjectId" default:"$HUAWEI_PROJECT" metavar:"HUAWEI_PROJECT"`
    41  	SUBCOMMAND     string `help:"huaweicli subcommand" subcommand:"true"`
    42  }
    43  
    44  func getSubcommandParser() (*structarg.ArgumentParser, error) {
    45  	parse, e := structarg.NewArgumentParserWithHelp(&BaseOptions{},
    46  		"hcsocli",
    47  		"Command-line interface to huawei API.",
    48  		`See "hcsocli COMMAND --help" for help on a specific command.`)
    49  
    50  	if e != nil {
    51  		return nil, e
    52  	}
    53  
    54  	subcmd := parse.GetSubcommand()
    55  	if subcmd == nil {
    56  		return nil, fmt.Errorf("No subcommand argument.")
    57  	}
    58  	for _, v := range shellutils.CommandTable {
    59  		_, e := subcmd.AddSubParserWithHelp(v.Options, v.Command, v.Desc, v.Callback)
    60  		if e != nil {
    61  			return nil, e
    62  		}
    63  	}
    64  	return parse, nil
    65  }
    66  
    67  func showErrorAndExit(e error) {
    68  	fmt.Fprintf(os.Stderr, "%s", e)
    69  	fmt.Fprintln(os.Stderr)
    70  	os.Exit(1)
    71  }
    72  
    73  func newClient(options *BaseOptions) (*huawei.SRegion, error) {
    74  	if len(options.AccessKey) == 0 {
    75  		return nil, fmt.Errorf("Missing accessKey")
    76  	}
    77  
    78  	if len(options.Secret) == 0 {
    79  		return nil, fmt.Errorf("Missing secret")
    80  	}
    81  
    82  	cfg := &httpproxy.Config{
    83  		HTTPProxy:  os.Getenv("HTTP_PROXY"),
    84  		HTTPSProxy: os.Getenv("HTTPS_PROXY"),
    85  		NoProxy:    os.Getenv("NO_PROXY"),
    86  	}
    87  	cfgProxyFunc := cfg.ProxyFunc()
    88  	proxyFunc := func(req *http.Request) (*url.URL, error) {
    89  		return cfgProxyFunc(req.URL)
    90  	}
    91  
    92  	cli, err := huawei.NewHuaweiClient(
    93  		huawei.NewHuaweiClientConfig(
    94  			options.AccessKey,
    95  			options.Secret,
    96  			options.ProjectId,
    97  			&options.SHCSOEndpoints,
    98  		).Debug(options.Debug).
    99  			CloudproviderConfig(
   100  				cloudprovider.ProviderConfig{
   101  					ProxyFunc:     proxyFunc,
   102  					DefaultRegion: options.DEFAULT_REGION,
   103  				},
   104  			),
   105  	)
   106  	if err != nil {
   107  		return nil, err
   108  	}
   109  
   110  	region := cli.GetRegion(options.RegionId)
   111  	if region == nil {
   112  		return nil, fmt.Errorf("No such region %s", options.RegionId)
   113  	}
   114  
   115  	return region, nil
   116  }
   117  
   118  func main() {
   119  	parser, e := getSubcommandParser()
   120  	if e != nil {
   121  		showErrorAndExit(e)
   122  	}
   123  	e = parser.ParseArgs(os.Args[1:], false)
   124  	options := parser.Options().(*BaseOptions)
   125  
   126  	if parser.IsHelpSet() {
   127  		fmt.Print(parser.HelpString())
   128  		return
   129  	}
   130  	subcmd := parser.GetSubcommand()
   131  	subparser := subcmd.GetSubParser()
   132  	if e != nil || subparser == nil {
   133  		if subparser != nil {
   134  			fmt.Print(subparser.Usage())
   135  		} else {
   136  			fmt.Print(parser.Usage())
   137  		}
   138  		showErrorAndExit(e)
   139  	}
   140  	suboptions := subparser.Options()
   141  	if subparser.IsHelpSet() {
   142  		fmt.Print(subparser.HelpString())
   143  		return
   144  	}
   145  	var region *huawei.SRegion
   146  	region, e = newClient(options)
   147  	if e != nil {
   148  		showErrorAndExit(e)
   149  	}
   150  	e = subcmd.Invoke(region, suboptions)
   151  	if e != nil {
   152  		showErrorAndExit(e)
   153  	}
   154  }