networkchaos.go

Documentation: github.com/chaos-mesh/chaos-mesh/pkg/chaosctl/debug

     1  // Copyright 2021 Chaos Mesh Authors.
     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  
    16  package debug
    17  
    18  import (
    19  	"context"
    20  	"strings"
    21  
    22  	"github.com/hasura/go-graphql-client"
    23  
    24  	"github.com/chaos-mesh/chaos-mesh/api/v1alpha1"
    25  	"github.com/chaos-mesh/chaos-mesh/pkg/chaosctl/common"
    26  	ctrlclient "github.com/chaos-mesh/chaos-mesh/pkg/ctrl/client"
    27  )
    28  
    29  type networkDebugger struct {
    30  	client *ctrlclient.CtrlClient
    31  }
    32  
    33  func NetworkDebug(client *ctrlclient.CtrlClient) Debugger {
    34  	return &networkDebugger{
    35  		client: client,
    36  	}
    37  }
    38  
    39  func (d *networkDebugger) Collect(ctx context.Context, namespace, chaosName string) ([]*common.ChaosResult, error) {
    40  	var results []*common.ChaosResult
    41  
    42  	var name *graphql.String
    43  	if chaosName != "" {
    44  		n := graphql.String(chaosName)
    45  		name = &n
    46  	}
    47  
    48  	var query struct {
    49  		Namespace []struct {
    50  			NetworkChaos []struct {
    51  				Name       string
    52  				Podnetwork []struct {
    53  					Spec      *v1alpha1.PodNetworkChaosSpec
    54  					Namespace string
    55  					Name      string
    56  					Pod       struct {
    57  						Ipset    string
    58  						TcQdisc  []string
    59  						Iptables []string
    60  					}
    61  				}
    62  			} `graphql:"networkchaos(name: $name)"`
    63  		} `graphql:"namespace(ns: $namespace)"`
    64  	}
    65  
    66  	variables := map[string]interface{}{
    67  		"namespace": graphql.String(namespace),
    68  		"name":      name,
    69  	}
    70  
    71  	err := d.client.QueryClient.Query(ctx, &query, variables)
    72  	if err != nil {
    73  		return nil, err
    74  	}
    75  
    76  	if len(query.Namespace) == 0 {
    77  		return results, nil
    78  	}
    79  
    80  	for _, networkChaos := range query.Namespace[0].NetworkChaos {
    81  		result := &common.ChaosResult{
    82  			Name: networkChaos.Name,
    83  		}
    84  
    85  		for _, podNetworkChaos := range networkChaos.Podnetwork {
    86  			podResult := common.PodResult{
    87  				Name: podNetworkChaos.Name,
    88  			}
    89  
    90  			podResult.Items = append(podResult.Items, common.ItemResult{Name: "ipset list", Value: podNetworkChaos.Pod.Ipset})
    91  			podResult.Items = append(podResult.Items, common.ItemResult{Name: "tc qdisc list", Value: strings.Join(podNetworkChaos.Pod.TcQdisc, "\n")})
    92  			podResult.Items = append(podResult.Items, common.ItemResult{Name: "iptables list", Value: strings.Join(podNetworkChaos.Pod.Iptables, "\n")})
    93  			output, err := common.MarshalChaos(podNetworkChaos.Spec)
    94  			if err != nil {
    95  				return nil, err
    96  			}
    97  			podResult.Items = append(podResult.Items, common.ItemResult{Name: "podnetworkchaos", Value: output})
    98  			result.Pods = append(result.Pods, podResult)
    99  		}
   100  
   101  		results = append(results, result)
   102  	}
   103  	return results, nil
   104  }
   105  
   106  func (d *networkDebugger) List(ctx context.Context, namespace string) ([]string, error) {
   107  	var query struct {
   108  		Namespace []struct {
   109  			NetworkChaos []struct {
   110  				Name string
   111  			} `graphql:"networkchaos"`
   112  		} `graphql:"namespace(ns: $namespace)"`
   113  	}
   114  
   115  	variables := map[string]interface{}{
   116  		"namespace": graphql.String(namespace),
   117  	}
   118  
   119  	err := d.client.QueryClient.Query(ctx, &query, variables)
   120  	if err != nil {
   121  		return nil, err
   122  	}
   123  
   124  	if len(query.Namespace) == 0 {
   125  		return nil, nil
   126  	}
   127  
   128  	var names []string
   129  	for _, networkChaos := range query.Namespace[0].NetworkChaos {
   130  		names = append(names, string(networkChaos.Name))
   131  	}
   132  	return names, nil
   133  }
   134