yunion.io/x/cloudmux@v0.3.10-0-alpha.1/cmd/awscli/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/pkg/errors"
    26  	"yunion.io/x/structarg"
    27  
    28  	"yunion.io/x/cloudmux/pkg/cloudprovider"
    29  	"yunion.io/x/cloudmux/pkg/multicloud/aws"
    30  	_ "yunion.io/x/cloudmux/pkg/multicloud/aws/shell"
    31  	"yunion.io/x/onecloud/pkg/util/shellutils"
    32  )
    33  
    34  type BaseOptions struct {
    35  	Debug      bool   `help:"debug mode"`
    36  	AccessUrl  string `help:"Access key" default:"$AWS_ACCESS_URL" choices:"ChinaCloud|InternationalCloud" metavar:"AWS_ACCESS_URL"`
    37  	AccessKey  string `help:"Access key" default:"$AWS_ACCESS_KEY" metavar:"AWS_ACCESS_KEY"`
    38  	Secret     string `help:"Secret" default:"$AWS_SECRET" metavar:"AWS_SECRET"`
    39  	RegionId   string `help:"RegionId" default:"$AWS_REGION" metavar:"AWS_REGION"`
    40  	AccountId  string `help:"Subaccount ID" default:"$AWS_ACCOUNT_ID" metavar:"AWS_ACCOUNT_ID"`
    41  	SUBCOMMAND string `help:"awscli subcommand" subcommand:"true"`
    42  }
    43  
    44  func getSubcommandParser() (*structarg.ArgumentParser, error) {
    45  	parse, e := structarg.NewArgumentParserWithHelp(&BaseOptions{},
    46  		"awscli",
    47  		"Command-line interface to aws API.",
    48  		`See "awscli 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) (*aws.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 := aws.NewAwsClient(
    93  		aws.NewAwsClientConfig(
    94  			options.AccessUrl,
    95  			options.AccessKey,
    96  			options.Secret,
    97  			options.AccountId,
    98  		).Debug(options.Debug).
    99  			CloudproviderConfig(
   100  				cloudprovider.ProviderConfig{
   101  					ProxyFunc: proxyFunc,
   102  				},
   103  			),
   104  	)
   105  	if err != nil {
   106  		return nil, err
   107  	}
   108  
   109  	region, err := cli.GetRegion(options.RegionId)
   110  	if err != nil {
   111  		return nil, errors.Wrapf(err, "GetRegion(%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 *aws.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  }