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impl.go
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/
impl.go
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// Copyright 2022 Chaos Mesh Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package diskdetach
import (
"context"
"encoding/json"
"errors"
"github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2019-07-01/compute"
"github.com/Azure/go-autorest/autorest/to"
"github.com/go-logr/logr"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/chaos-mesh/chaos-mesh/api/v1alpha1"
"github.com/chaos-mesh/chaos-mesh/controllers/chaosimpl/azurechaos/utils"
impltypes "github.com/chaos-mesh/chaos-mesh/controllers/chaosimpl/types"
)
var _ impltypes.ChaosImpl = (*Impl)(nil)
type Impl struct {
client.Client
Log logr.Logger
}
func (impl *Impl) Apply(ctx context.Context, index int, records []*v1alpha1.Record, chaos v1alpha1.InnerObject) (v1alpha1.Phase, error) {
azurechaos, ok := chaos.(*v1alpha1.AzureChaos)
if !ok {
err := errors.New("chaos is not azurechaos")
impl.Log.Error(err, "chaos is not azureChaos", "chaos", chaos)
return v1alpha1.NotInjected, err
}
vmClient, err := utils.GetVMClient(ctx, impl.Client, azurechaos)
if err != nil {
impl.Log.Error(err, "fail to get the vm client")
return v1alpha1.NotInjected, err
}
var selected v1alpha1.AzureSelector
err = json.Unmarshal([]byte(records[index].Id), &selected)
if err != nil {
impl.Log.Error(err, "fail to unmarshal the selector")
return v1alpha1.NotInjected, err
}
vm, err := vmClient.Get(ctx, azurechaos.Spec.ResourceGroupName, azurechaos.Spec.VMName, compute.InstanceView)
if err != nil {
impl.Log.Error(err, "fail to get the specified vm")
return v1alpha1.NotInjected, err
}
diskIndex := -1
for index, disk := range *vm.StorageProfile.DataDisks {
if *disk.Lun == int32(*azurechaos.Spec.LUN) && *disk.Name == *azurechaos.Spec.DiskName {
diskIndex = index
break
}
}
if diskIndex == -1 {
impl.Log.Error(err, "fail to get the disk, please check the LUN and diskName")
return v1alpha1.NotInjected, err
}
newDiskList := append((*vm.StorageProfile.DataDisks)[:diskIndex], (*vm.StorageProfile.DataDisks)[diskIndex+1:]...)
vm.StorageProfile.DataDisks = &newDiskList
_, err = vmClient.CreateOrUpdate(ctx, azurechaos.Spec.ResourceGroupName, azurechaos.Spec.VMName, vm)
if err != nil {
impl.Log.Error(err, "fail to detach the disk from the vm")
return v1alpha1.NotInjected, err
}
return v1alpha1.Injected, nil
}
func (impl *Impl) Recover(ctx context.Context, index int, records []*v1alpha1.Record, chaos v1alpha1.InnerObject) (v1alpha1.Phase, error) {
azurechaos, ok := chaos.(*v1alpha1.AzureChaos)
if !ok {
err := errors.New("chaos is not azurechaos")
impl.Log.Error(err, "chaos is not AzureChaos", "chaos", chaos)
return v1alpha1.Injected, err
}
vmClient, err := utils.GetVMClient(ctx, impl.Client, azurechaos)
if err != nil {
impl.Log.Error(err, "fail to get the vm client")
return v1alpha1.Injected, err
}
disksClient, err := utils.GetDiskClient(ctx, impl.Client, azurechaos)
if err != nil {
impl.Log.Error(err, "fail to get the disk client")
return v1alpha1.Injected, err
}
disk, err := disksClient.Get(ctx, azurechaos.Spec.ResourceGroupName, *azurechaos.Spec.DiskName)
if err != nil {
impl.Log.Error(err, "fail to get the disk detail")
return v1alpha1.Injected, err
}
vm, err := vmClient.Get(ctx, azurechaos.Spec.ResourceGroupName, azurechaos.Spec.VMName, compute.InstanceView)
if err != nil {
impl.Log.Error(err, "fail to get the specified vm")
return v1alpha1.Injected, err
}
newDiskList := *vm.StorageProfile.DataDisks
newDiskList = append(newDiskList, compute.DataDisk{
Lun: to.Int32Ptr(int32(*azurechaos.Spec.LUN)),
Name: azurechaos.Spec.DiskName,
CreateOption: compute.DiskCreateOptionTypesAttach,
ManagedDisk: &compute.ManagedDiskParameters{
ID: disk.ID,
},
})
vm.StorageProfile.DataDisks = &newDiskList
var selected v1alpha1.AzureSelector
err = json.Unmarshal([]byte(records[index].Id), &selected)
if err != nil {
impl.Log.Error(err, "fail to unmarshal the selector")
return v1alpha1.NotInjected, err
}
_, err = vmClient.CreateOrUpdate(ctx, azurechaos.Spec.ResourceGroupName, azurechaos.Spec.VMName, vm)
if err != nil {
impl.Log.Error(err, "fail to attach the disk")
return v1alpha1.Injected, err
}
return v1alpha1.NotInjected, nil
}
func NewImpl(c client.Client, log logr.Logger) *Impl {
return &Impl{
Client: c,
Log: log.WithName("diskdetach"),
}
}