github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/cli/cmd/alert/delete_receiver.go (about)

     1  /*
     2  Copyright (C) 2022-2023 ApeCloud Co., Ltd
     3  
     4  This file is part of KubeBlocks project
     5  
     6  This program is free software: you can redistribute it and/or modify
     7  it under the terms of the GNU Affero General Public License as published by
     8  the Free Software Foundation, either version 3 of the License, or
     9  (at your option) any later version.
    10  
    11  This program is distributed in the hope that it will be useful
    12  but WITHOUT ANY WARRANTY; without even the implied warranty of
    13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14  GNU Affero General Public License for more details.
    15  
    16  You should have received a copy of the GNU Affero General Public License
    17  along with this program.  If not, see <http://www.gnu.org/licenses/>.
    18  */
    19  
    20  package alert
    21  
    22  import (
    23  	"fmt"
    24  	"strings"
    25  
    26  	"github.com/spf13/cobra"
    27  	"k8s.io/cli-runtime/pkg/genericiooptions"
    28  	"k8s.io/klog/v2"
    29  	cmdutil "k8s.io/kubectl/pkg/cmd/util"
    30  	"k8s.io/kubectl/pkg/util/templates"
    31  
    32  	"github.com/1aal/kubeblocks/pkg/cli/util"
    33  )
    34  
    35  var (
    36  	deleteReceiverExample = templates.Examples(`
    37  		# delete a receiver named my-receiver, all receivers can be found by command: kbcli alert list-receivers
    38  		kbcli alert delete-receiver my-receiver`)
    39  )
    40  
    41  type deleteReceiverOptions struct {
    42  	baseOptions
    43  	names []string
    44  }
    45  
    46  func newDeleteReceiverCmd(f cmdutil.Factory, streams genericiooptions.IOStreams) *cobra.Command {
    47  	o := &deleteReceiverOptions{baseOptions: baseOptions{IOStreams: streams}}
    48  	cmd := &cobra.Command{
    49  		Use:     "delete-receiver NAME",
    50  		Short:   "Delete alert receiver.",
    51  		Example: deleteReceiverExample,
    52  		Run: func(cmd *cobra.Command, args []string) {
    53  			util.CheckErr(o.complete(f))
    54  			util.CheckErr(o.validate(args))
    55  			util.CheckErr(o.run())
    56  		},
    57  	}
    58  	return cmd
    59  }
    60  
    61  func (o *deleteReceiverOptions) validate(args []string) error {
    62  	if len(args) == 0 {
    63  		return fmt.Errorf("receiver name is required")
    64  	}
    65  	o.names = args
    66  	return nil
    67  }
    68  
    69  func (o *deleteReceiverOptions) run() error {
    70  	// delete receiver from alert manager config
    71  	if err := o.deleteReceiver(); err != nil {
    72  		return err
    73  	}
    74  
    75  	// delete receiver from webhook config
    76  	if err := o.deleteWebhookReceivers(); err != nil {
    77  		return err
    78  	}
    79  
    80  	fmt.Fprintf(o.Out, "Receiver %s deleted successfully\n", strings.Join(o.names, ","))
    81  	return nil
    82  }
    83  
    84  func (o *deleteReceiverOptions) deleteReceiver() error {
    85  	data, err := getConfigData(o.alertConfigMap, alertConfigFileName)
    86  	if err != nil {
    87  		return err
    88  	}
    89  
    90  	var newReceivers []interface{}
    91  	var newRoutes []interface{}
    92  	// build receiver route map, key is receiver name, value is route
    93  	receiverRouteMap := make(map[string]interface{})
    94  	routes := getRoutesFromData(data)
    95  	for i, r := range routes {
    96  		name := r.(map[string]interface{})["receiver"].(string)
    97  		receiverRouteMap[name] = routes[i]
    98  	}
    99  
   100  	receivers := getReceiversFromData(data)
   101  	for i, rec := range receivers {
   102  		var found bool
   103  		name := rec.(map[string]interface{})["name"].(string)
   104  		for _, n := range o.names {
   105  			if n == name {
   106  				found = true
   107  				break
   108  			}
   109  		}
   110  		if !found {
   111  			newReceivers = append(newReceivers, receivers[i])
   112  			r, ok := receiverRouteMap[name]
   113  			if !ok {
   114  				klog.V(1).Infof("receiver %s not found in routes\n", name)
   115  				continue
   116  			}
   117  			newRoutes = append(newRoutes, r)
   118  		}
   119  	}
   120  
   121  	// check if receiver exists
   122  	if len(receivers) == len(newReceivers) {
   123  		return fmt.Errorf("receiver %s not found", strings.Join(o.names, ","))
   124  	}
   125  
   126  	data["receivers"] = newReceivers
   127  	data["route"].(map[string]interface{})["routes"] = newRoutes
   128  	return updateConfig(o.client, o.alertConfigMap, alertConfigFileName, data)
   129  }
   130  
   131  func (o *deleteReceiverOptions) deleteWebhookReceivers() error {
   132  	data, err := getConfigData(o.webhookConfigMap, webhookAdaptorFileName)
   133  	if err != nil {
   134  		return err
   135  	}
   136  	var newReceivers []interface{}
   137  	receivers := getReceiversFromData(data)
   138  	for i, rec := range receivers {
   139  		var found bool
   140  		name := rec.(map[string]interface{})["name"].(string)
   141  		for _, n := range o.names {
   142  			if n == name {
   143  				found = true
   144  				break
   145  			}
   146  		}
   147  		if !found {
   148  			newReceivers = append(newReceivers, receivers[i])
   149  		}
   150  	}
   151  	data["receivers"] = newReceivers
   152  	return updateConfig(o.client, o.webhookConfigMap, webhookAdaptorFileName, data)
   153  }