forked from chaos-mesh/chaos-mesh
-
Notifications
You must be signed in to change notification settings - Fork 0
/
recover.go
82 lines (69 loc) · 2.09 KB
/
recover.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
// Copyright 2021 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 recover
import (
"context"
"fmt"
"strings"
"github.com/pkg/errors"
ctrlclient "github.com/chaos-mesh/chaos-mesh/pkg/ctrl/client"
)
// PartialPod is a subset of the Pod type.
// It contains necessary information for forced recovery.
type PartialPod struct {
Namespace string
Name string
Processes []struct {
Pid, Command string
}
TcQdisc []string
Iptables []string
}
type Recoverer interface {
// Recover target pod forcedly
Recover(ctx context.Context, pod *PartialPod) error
}
type RecovererBuilder func(client *ctrlclient.CtrlClient) Recoverer
type cleanProcessRecoverer struct {
client *ctrlclient.CtrlClient
process string
}
func newCleanProcessRecoverer(client *ctrlclient.CtrlClient, process string) Recoverer {
return &cleanProcessRecoverer{
client: client,
process: process,
}
}
func (r *cleanProcessRecoverer) Recover(ctx context.Context, pod *PartialPod) error {
var pids []string
for _, process := range pod.Processes {
if process.Command == r.process {
pids = append(pids, process.Pid)
}
}
if len(pids) == 0 {
printStep(fmt.Sprintf("all %s processes are cleaned up", r.process))
return nil
}
printStep(fmt.Sprintf("cleaning %s processes: %v", r.process, pids))
killedPids, err := r.client.KillProcesses(ctx, pod.Namespace, pod.Name, pids)
if err != nil {
return errors.Wrapf(err, "kill %s processes", r.process)
}
if len(killedPids) != 0 {
printStep(fmt.Sprintf("%s processes(%s) are cleaned up", r.process, strings.Join(killedPids, ", ")))
}
return nil
}