record.go

Documentation: github.com/chaos-mesh/chaos-mesh/controllers/chaosimpl/utils

     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  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package utils
    15  
    16  import (
    17  	"context"
    18  
    19  	v1 "k8s.io/api/core/v1"
    20  	"sigs.k8s.io/controller-runtime/pkg/client"
    21  
    22  	"github.com/chaos-mesh/chaos-mesh/api/v1alpha1"
    23  	"github.com/chaos-mesh/chaos-mesh/controllers/utils/chaosdaemon"
    24  	"github.com/chaos-mesh/chaos-mesh/controllers/utils/controller"
    25  	chaosdaemonclient "github.com/chaos-mesh/chaos-mesh/pkg/chaosdaemon/client"
    26  )
    27  
    28  type ContianerRecordDecoder struct {
    29  	client.Client
    30  	*chaosdaemon.ChaosDaemonClientBuilder
    31  }
    32  
    33  func NewContainerRecordDecoder(c client.Client, builder *chaosdaemon.ChaosDaemonClientBuilder) *ContianerRecordDecoder {
    34  	return &ContianerRecordDecoder{
    35  		Client:                   c,
    36  		ChaosDaemonClientBuilder: builder,
    37  	}
    38  }
    39  
    40  type DecodedContainerRecord struct {
    41  	PbClient    chaosdaemonclient.ChaosDaemonClientInterface
    42  	ContainerId string
    43  
    44  	Pod *v1.Pod
    45  }
    46  
    47  func (d *ContianerRecordDecoder) DecodeContainerRecord(ctx context.Context, record *v1alpha1.Record) (decoded DecodedContainerRecord, err error) {
    48  	var pod v1.Pod
    49  	podId, containerName := controller.ParseNamespacedNameContainer(record.Id)
    50  	err = d.Client.Get(ctx, podId, &pod)
    51  	if err != nil {
    52  		// TODO: organize the error in a better way
    53  		err = NewFailToFindContainer(pod.Namespace, pod.Name, containerName, err)
    54  		return
    55  	}
    56  	decoded.Pod = &pod
    57  	if len(pod.Status.ContainerStatuses) == 0 {
    58  		// TODO: organize the error in a better way
    59  		err = NewFailToFindContainer(pod.Namespace, pod.Name, containerName, nil)
    60  		return
    61  	}
    62  
    63  	for _, container := range pod.Status.ContainerStatuses {
    64  		if container.Name == containerName {
    65  			decoded.ContainerId = container.ContainerID
    66  			break
    67  		}
    68  	}
    69  	if len(decoded.ContainerId) == 0 {
    70  		// TODO: organize the error in a better way
    71  		err = NewFailToFindContainer(pod.Namespace, pod.Name, containerName, nil)
    72  		return
    73  	}
    74  
    75  	decoded.PbClient, err = d.ChaosDaemonClientBuilder.Build(ctx, &pod)
    76  	if err != nil {
    77  		return
    78  	}
    79  
    80  	return
    81  }
    82