yunion.io/x/cloudmux@v0.3.10-0-alpha.1/cmd/apsaracli/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  	"yunion.io/x/cloudmux/pkg/multicloud/apsara"
    29  	_ "yunion.io/x/cloudmux/pkg/multicloud/apsara/shell"
    30  	"yunion.io/x/onecloud/pkg/util/shellutils"
    31  )
    32  
    33  type BaseOptions struct {
    34  	Debug          bool   `help:"debug mode"`
    35  	AccessKey      string `help:"Access key" default:"$APSARA_ACCESS_KEY" metavar:"APSARA_ACCESS_KEY"`
    36  	Secret         string `help:"Secret" default:"$APSARA_SECRET" metavar:"APSARA_SECRET"`
    37  	Endpoint       string `help:"Apsara endpoint" default:"$APSARA_ENDPOINT" metavar:"APSARA_ENDPOINT"`
    38  	RegionId       string `help:"RegionId" default:"$APSARA_REGION" metavar:"APSARA_REGION"`
    39  	DEFAULT_REGION string `help:"Default region" default:"$APSARA_DEFAULT_REGION"`
    40  	SUBCOMMAND     string `help:"apsaracli subcommand" subcommand:"true"`
    41  }
    42  
    43  func getSubcommandParser() (*structarg.ArgumentParser, error) {
    44  	parse, e := structarg.NewArgumentParserWithHelp(&BaseOptions{},
    45  		"apsaracli",
    46  		"Command-line interface to apsara API.",
    47  		`See "apsaracli COMMAND --help" for help on a specific command.`)
    48  
    49  	if e != nil {
    50  		return nil, e
    51  	}
    52  
    53  	subcmd := parse.GetSubcommand()
    54  	if subcmd == nil {
    55  		return nil, fmt.Errorf("No subcommand argument.")
    56  	}
    57  	for _, v := range shellutils.CommandTable {
    58  		_, e := subcmd.AddSubParserWithHelp(v.Options, v.Command, v.Desc, v.Callback)
    59  		if e != nil {
    60  			return nil, e
    61  		}
    62  	}
    63  	return parse, nil
    64  }
    65  
    66  func showErrorAndExit(e error) {
    67  	fmt.Fprintf(os.Stderr, "%s", e)
    68  	fmt.Fprintln(os.Stderr)
    69  	os.Exit(1)
    70  }
    71  
    72  func newClient(options *BaseOptions) (*apsara.SRegion, error) {
    73  	if len(options.AccessKey) == 0 {
    74  		return nil, fmt.Errorf("Missing accessKey")
    75  	}
    76  
    77  	if len(options.Secret) == 0 {
    78  		return nil, fmt.Errorf("Missing secret")
    79  	}
    80  
    81  	cfg := &httpproxy.Config{
    82  		HTTPProxy:  os.Getenv("HTTP_PROXY"),
    83  		HTTPSProxy: os.Getenv("HTTPS_PROXY"),
    84  		NoProxy:    os.Getenv("NO_PROXY"),
    85  	}
    86  	cfgProxyFunc := cfg.ProxyFunc()
    87  	proxyFunc := func(req *http.Request) (*url.URL, error) {
    88  		return cfgProxyFunc(req.URL)
    89  	}
    90  
    91  	cli, err := apsara.NewApsaraClient(
    92  		apsara.NewApsaraClientConfig(
    93  			options.AccessKey,
    94  			options.Secret,
    95  			options.Endpoint,
    96  		).Debug(options.Debug).
    97  			CloudproviderConfig(
    98  				cloudprovider.ProviderConfig{
    99  					ProxyFunc:     proxyFunc,
   100  					URL:           options.Endpoint,
   101  					DefaultRegion: options.DEFAULT_REGION,
   102  				},
   103  			),
   104  	)
   105  	if err != nil {
   106  		return nil, err
   107  	}
   108  
   109  	region := cli.GetRegion(options.RegionId)
   110  	if region == nil {
   111  		return nil, fmt.Errorf("No such region %s", options.RegionId)
   112  	}
   113  
   114  	return region, nil
   115  }
   116  
   117  func main() {
   118  	parser, e := getSubcommandParser()
   119  	if e != nil {
   120  		showErrorAndExit(e)
   121  	}
   122  	e = parser.ParseArgs(os.Args[1:], false)
   123  	options := parser.Options().(*BaseOptions)
   124  
   125  	if parser.IsHelpSet() {
   126  		fmt.Print(parser.HelpString())
   127  		return
   128  	}
   129  	subcmd := parser.GetSubcommand()
   130  	subparser := subcmd.GetSubParser()
   131  	if e != nil || subparser == nil {
   132  		if subparser != nil {
   133  			fmt.Print(subparser.Usage())
   134  		} else {
   135  			fmt.Print(parser.Usage())
   136  		}
   137  		showErrorAndExit(e)
   138  		return
   139  	}
   140  	suboptions := subparser.Options()
   141  	if subparser.IsHelpSet() {
   142  		fmt.Print(subparser.HelpString())
   143  		return
   144  	}
   145  	var region *apsara.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  }