-
Notifications
You must be signed in to change notification settings - Fork 80
/
hollow-nodes.go
191 lines (167 loc) · 5.92 KB
/
hollow-nodes.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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
// Package local implements local Hollow Nodes.
// ref. https://github.com/kubernetes/kubernetes/blob/master/pkg/kubemark/hollow_kubelet.go
//
// The purpose is to make it easy to run on EKS.
// ref. https://github.com/kubernetes/kubernetes/blob/master/test/kubemark/start-kubemark.sh
//
package local
import (
"context"
"errors"
"reflect"
"strings"
"time"
hollow_nodes "github.com/aws/aws-k8s-tester/eks/hollow-nodes"
eks_tester "github.com/aws/aws-k8s-tester/eks/tester"
"github.com/aws/aws-k8s-tester/eksconfig"
k8s_client "github.com/aws/aws-k8s-tester/pkg/k8s-client"
"github.com/aws/aws-k8s-tester/pkg/timeutil"
"github.com/aws/aws-sdk-go/aws"
"go.uber.org/zap"
api_errors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// Config defines hollow nodes configuration.
type Config struct {
Logger *zap.Logger
Stopc chan struct{}
EKSConfig *eksconfig.Config
K8SClient k8s_client.EKS
}
func New(cfg Config) eks_tester.Tester {
cfg.Logger.Info("creating tester", zap.String("tester", reflect.TypeOf(tester{}).PkgPath()))
return &tester{cfg: cfg}
}
type tester struct {
cfg Config
ng hollow_nodes.NodeGroup
}
func (ts *tester) Create() (err error) {
if !ts.cfg.EKSConfig.IsEnabledAddOnHollowNodesLocal() {
ts.cfg.Logger.Info("skipping tester.Create", zap.String("tester", reflect.TypeOf(tester{}).PkgPath()))
return nil
}
if ts.cfg.EKSConfig.AddOnHollowNodesLocal.Created {
ts.cfg.Logger.Info("skipping tester.Create", zap.String("tester", reflect.TypeOf(tester{}).PkgPath()))
return nil
}
ts.cfg.Logger.Info("starting tester.Create", zap.String("tester", reflect.TypeOf(tester{}).PkgPath()))
ts.ng = hollow_nodes.CreateNodeGroup(hollow_nodes.NodeGroupConfig{
Logger: ts.cfg.Logger,
Stopc: ts.cfg.Stopc,
Client: ts.cfg.K8SClient,
Nodes: ts.cfg.EKSConfig.AddOnHollowNodesLocal.Nodes,
NodeNamePrefix: ts.cfg.EKSConfig.AddOnHollowNodesLocal.NodeNamePrefix,
NodeLabels: ts.cfg.EKSConfig.AddOnHollowNodesLocal.NodeLabels,
MaxOpenFiles: ts.cfg.EKSConfig.AddOnHollowNodesLocal.MaxOpenFiles,
Remote: false,
})
ts.cfg.EKSConfig.AddOnHollowNodesLocal.Created = true
ts.cfg.EKSConfig.Sync()
createStart := time.Now()
defer func() {
createEnd := time.Now()
ts.cfg.EKSConfig.AddOnHollowNodesLocal.TimeFrameCreate = timeutil.NewTimeFrame(createStart, createEnd)
ts.cfg.EKSConfig.Sync()
}()
if err = ts.ng.Start(); err != nil {
return err
}
_, ts.cfg.EKSConfig.AddOnHollowNodesLocal.CreatedNodeNames, err = ts.ng.CheckNodes()
if err != nil {
return err
}
ts.cfg.EKSConfig.Sync()
waitDur, retryStart := 5*time.Minute, time.Now()
for time.Now().Sub(retryStart) < waitDur {
select {
case <-ts.cfg.Stopc:
ts.cfg.Logger.Warn("health check aborted")
return nil
case <-time.After(5 * time.Second):
}
err = ts.cfg.K8SClient.CheckHealth()
if err == nil {
break
}
ts.cfg.Logger.Warn("health check failed", zap.Error(err))
}
if err == nil {
ts.cfg.Logger.Info("health check success after load testing")
} else {
ts.cfg.Logger.Warn("health check failed after load testing", zap.Error(err))
}
return ts.cfg.EKSConfig.Sync()
}
func (ts *tester) Delete() (err error) {
if !ts.cfg.EKSConfig.IsEnabledAddOnHollowNodesLocal() {
ts.cfg.Logger.Info("skipping tester.Delete", zap.String("tester", reflect.TypeOf(tester{}).PkgPath()))
return nil
}
if !ts.cfg.EKSConfig.AddOnHollowNodesLocal.Created {
ts.cfg.Logger.Info("skipping tester.Delete", zap.String("tester", reflect.TypeOf(tester{}).PkgPath()))
return nil
}
ts.cfg.Logger.Info("starting tester.Delete", zap.String("tester", reflect.TypeOf(tester{}).PkgPath()))
deleteStart := time.Now()
defer func() {
deleteEnd := time.Now()
ts.cfg.EKSConfig.AddOnHollowNodesLocal.TimeFrameDelete = timeutil.NewTimeFrame(deleteStart, deleteEnd)
ts.cfg.EKSConfig.Sync()
}()
var errs []string
if err := ts.deleteCreatedNodes(); err != nil {
errs = append(errs, err.Error())
}
if len(errs) > 0 {
return errors.New(strings.Join(errs, ", "))
}
ts.cfg.EKSConfig.AddOnHollowNodesLocal.Created = false
return ts.cfg.EKSConfig.Sync()
}
func (ts *tester) deleteCreatedNodes() error {
var errs []string
ts.cfg.Logger.Info("deleting node objects", zap.Int("created-nodes", len(ts.cfg.EKSConfig.AddOnHollowNodesLocal.CreatedNodeNames)))
deleted := 0
foreground := metav1.DeletePropagationForeground
for i, nodeName := range ts.cfg.EKSConfig.AddOnHollowNodesLocal.CreatedNodeNames {
ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
err := ts.cfg.K8SClient.KubernetesClientSet().CoreV1().Nodes().Delete(
ctx,
nodeName,
metav1.DeleteOptions{
GracePeriodSeconds: aws.Int64(0),
PropagationPolicy: &foreground,
},
)
cancel()
if err != nil && !api_errors.IsNotFound(err) {
ts.cfg.Logger.Warn("failed to delete node", zap.Int("index", i), zap.String("name", nodeName), zap.Error(err))
errs = append(errs, err.Error())
} else {
ts.cfg.Logger.Info("deleted node", zap.Int("index", i), zap.String("name", nodeName))
deleted++
}
if i > 300 {
ts.cfg.Logger.Warn("skipping deleting created nodes; too many", zap.Int("deleted", deleted))
break
}
}
ts.cfg.Logger.Info("deleted node objects", zap.Int("deleted", deleted), zap.Int("created-nodes", len(ts.cfg.EKSConfig.AddOnHollowNodesLocal.CreatedNodeNames)))
if len(errs) > 0 {
return errors.New(strings.Join(errs, ", "))
}
return nil
}
func (ts *tester) AggregateResults() (err error) {
if !ts.cfg.EKSConfig.IsEnabledAddOnHollowNodesLocal() {
ts.cfg.Logger.Info("skipping tester.AggregateResults", zap.String("tester", reflect.TypeOf(tester{}).PkgPath()))
return nil
}
if !ts.cfg.EKSConfig.AddOnHollowNodesLocal.Created {
ts.cfg.Logger.Info("skipping tester.AggregateResults", zap.String("tester", reflect.TypeOf(tester{}).PkgPath()))
return nil
}
ts.cfg.Logger.Info("starting tester.AggregateResults", zap.String("tester", reflect.TypeOf(tester{}).PkgPath()))
return nil
}