github.com/fafucoder/cilium@v1.6.11/cilium/cmd/identity_list.go (about)

     1  // Copyright 2017-2018 Authors of Cilium
     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 cmd
    16  
    17  import (
    18  	"fmt"
    19  	"os"
    20  	"sort"
    21  	"text/tabwriter"
    22  
    23  	identityApi "github.com/cilium/cilium/api/v1/client/policy"
    24  	"github.com/cilium/cilium/api/v1/models"
    25  	"github.com/cilium/cilium/pkg/api"
    26  	pkg "github.com/cilium/cilium/pkg/client"
    27  	"github.com/cilium/cilium/pkg/command"
    28  	"github.com/cilium/cilium/pkg/identity/cache"
    29  	"github.com/cilium/cilium/pkg/identity/identitymanager"
    30  	"github.com/cilium/cilium/pkg/labels"
    31  	"github.com/spf13/viper"
    32  
    33  	"github.com/spf13/cobra"
    34  )
    35  
    36  // identityListCmd represents the identity_list command
    37  var identityListCmd = &cobra.Command{
    38  	Use:     "list [LABELS]",
    39  	Aliases: []string{"ls"},
    40  	Short:   "List identities",
    41  	Run: func(cmd *cobra.Command, args []string) {
    42  		listIdentities(args)
    43  	},
    44  }
    45  
    46  func init() {
    47  	identityCmd.AddCommand(identityListCmd)
    48  	command.AddJSONOutput(identityListCmd)
    49  	flags := identityListCmd.Flags()
    50  	flags.Bool("endpoints", false, "list identities of locally managed endpoints")
    51  	viper.BindPFlags(flags)
    52  }
    53  
    54  func listIdentities(args []string) {
    55  	switch {
    56  	case viper.GetBool("endpoints"):
    57  		params := identityApi.NewGetIdentityEndpointsParams().WithTimeout(api.ClientTimeout)
    58  		identities, err := client.Policy.GetIdentityEndpoints(params)
    59  		if err != nil {
    60  			Fatalf("Cannot get identities. err: %s", pkg.Hint(err))
    61  		}
    62  		// sort identities by ID
    63  		im := identitymanager.IdentitiesModel(identities.Payload)
    64  		sort.Slice(im, im.Less)
    65  		printIdentitesEndpoints(identities.Payload)
    66  	default:
    67  		params := identityApi.NewGetIdentityParams().WithTimeout(api.ClientTimeout)
    68  		if len(args) != 0 {
    69  			params = params.WithLabels(args)
    70  		}
    71  		identities, err := client.Policy.GetIdentity(params)
    72  		if err != nil {
    73  			if params != nil {
    74  				Fatalf("Cannot get identities for given labels %v. err: %s\n", params.Labels, err.Error())
    75  			} else {
    76  				Fatalf("Cannot get identities. err: %s", pkg.Hint(err))
    77  			}
    78  		}
    79  		// sort identities by ID
    80  		im := cache.IdentitiesModel(identities.Payload)
    81  		sort.Slice(im, im.Less)
    82  		printIdentities(identities.Payload)
    83  	}
    84  }
    85  
    86  func printIdentitesEndpoints(identities []*models.IdentityEndpoints) {
    87  	if command.OutputJSON() {
    88  		if err := command.PrintOutput(identities); err != nil {
    89  			Fatalf("Unable to provide JSON output: %s", err)
    90  		}
    91  	} else {
    92  		w := tabwriter.NewWriter(os.Stdout, 5, 0, 3, ' ', 0)
    93  
    94  		fmt.Fprintf(w, "ID\tLABELS\tREFCOUNT\n")
    95  		for _, identity := range identities {
    96  			lbls := labels.NewLabelsFromModel(identity.Identity.Labels)
    97  			first := true
    98  			for _, lbl := range lbls.GetPrintableModel() {
    99  				if first {
   100  					fmt.Fprintf(w, "%d\t%s\t%d\t\n", identity.Identity.ID, lbl, identity.RefCount)
   101  					first = false
   102  				} else {
   103  					fmt.Fprintf(w, "\t%s\t\n", lbl)
   104  				}
   105  			}
   106  		}
   107  
   108  		w.Flush()
   109  	}
   110  }