/
add-on-managed-node-groups.go
357 lines (319 loc) · 15.6 KB
/
add-on-managed-node-groups.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
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
package eksconfig
import (
"errors"
"fmt"
"path/filepath"
"strings"
"github.com/aws/aws-k8s-tester/ec2config"
"github.com/aws/aws-k8s-tester/pkg/timeutil"
"github.com/aws/aws-sdk-go/service/eks"
)
// AddOnManagedNodeGroups defines parameters for EKS "Managed Node Group" creation.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
type AddOnManagedNodeGroups struct {
// Enable is true to auto-create a managed node group.
Enable bool `json:"enable"`
// Created is true when the resource has been created.
// Used for delete operations.
Created bool `json:"created" read-only:"true"`
TimeFrameCreate timeutil.TimeFrame `json:"time-frame-create" read-only:"true"`
TimeFrameDelete timeutil.TimeFrame `json:"time-frame-delete" read-only:"true"`
// FetchLogs is true to fetch logs from remote nodes using SSH.
FetchLogs bool `json:"fetch-logs"`
// RoleName is the name of the managed node group.
RoleName string `json:"role-name"`
// RoleCreate is true to auto-create and delete role.
RoleCreate bool `json:"role-create"`
// RoleARN is the role ARN that EKS managed node group uses to create AWS
// resources for Kubernetes.
// By default, it's empty which triggers tester to create one.
RoleARN string `json:"role-arn"`
// RoleServicePrincipals is the node group Service Principals
RoleServicePrincipals []string `json:"role-service-principals"`
// RoleManagedPolicyARNs is node group managed policy ARNs.
RoleManagedPolicyARNs []string `json:"role-managed-policy-arns"`
RoleCFNStackID string `json:"role-cfn-stack-id" read-only:"true"`
// RequestHeaderKey defines EKS managed node group create cluster request header key.
RequestHeaderKey string `json:"request-header-key,omitempty"`
// RequestHeaderValue defines EKS managed node group create cluster request header value.
RequestHeaderValue string `json:"request-header-value,omitempty"`
// ResolverURL defines an AWS resolver endpoint for EKS API.
// Must be left empty to use production EKS managed node group service.
ResolverURL string `json:"resolver-url"`
// SigningName is the EKS managed node group create request signing name.
SigningName string `json:"signing-name"`
// LogsDir is set to specify the target directory to store all remote log files.
// If empty, it stores in the same directory as "ConfigPath".
LogsDir string `json:"logs-dir,omitempty"`
// LogsTarGzPath is the .tar.gz archived file for "LogsDir".
LogsTarGzPath string `json:"logs-tar-gz-path"`
// MNGs maps from EKS Managed Node Group name to "MNG".
// "GetRef.Name" is the reserved key and MNG name from eksconfig.Config.Name.
MNGs map[string]MNG `json:"mngs,omitempty"`
}
// MNG represents parameters for one EKS "Managed Node Group".
type MNG struct {
// Name is the name of the managed node group.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
Name string `json:"name,omitempty"`
// ASGName is the ASG name from a created managed node group.
ASGName string `json:"asg-name,omitempty" read-only:"true"`
TimeFrameCreate timeutil.TimeFrame `json:"time-frame-create" read-only:"true"`
TimeFrameDelete timeutil.TimeFrame `json:"time-frame-delete" read-only:"true"`
// RemoteAccessUserName is the user name for managed node group SSH access.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
RemoteAccessUserName string `json:"remote-access-user-name,omitempty"`
// Tags defines EKS managed node group create tags.
Tags map[string]string `json:"tags,omitempty"`
// ReleaseVersion is the AMI version of the Amazon EKS-optimized AMI for the node group.
// The version may differ from EKS "cluster" version.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
// ref. https://docs.aws.amazon.com/eks/latest/userguide/eks-linux-ami-versions.html
ReleaseVersion string `json:"release-version,omitempty"`
// AMIType is the AMI type for the node group.
// Allowed values are AL2_x86_64 and AL2_x86_64_GPU.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
AMIType string `json:"ami-type,omitempty"`
// InstanceTypes is the EC2 instance types for the node instances.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
InstanceTypes []string `json:"instance-types,omitempty"`
// VolumeSize is the node volume size.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
VolumeSize int `json:"volume-size,omitempty"`
// ASGMinSize is the minimum size of Node Group Auto Scaling Group.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
ASGMinSize int `json:"asg-min-size,omitempty"`
// ASGMaxSize is the maximum size of Node Group Auto Scaling Group.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
ASGMaxSize int `json:"asg-max-size,omitempty"`
// ASGDesiredCapacity is is the desired capacity of Node Group ASG.
// ref. https://docs.aws.amazon.com/eks/latest/userguide/create-managed-node-group.html
// ref. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-eks-nodegroup.html
ASGDesiredCapacity int `json:"asg-desired-capacity,omitempty"`
// CreateRequested is true if "CreateNodegroupRequest" has been sent.
CreateRequested bool `json:"create-requested" read-only:"true"`
// PhysicalID is the Physical ID for the created "AWS::EKS::Nodegroup".
PhysicalID string `json:"physical-id" read-only:"true"`
// CFNStackID is the CloudFormation stack ID for a managed node group.
CFNStackID string `json:"cfn-stack-id" read-only:"true"`
RemoteAccessSecurityGroupID string `json:"remote-access-security-group-id" read-only:"true"`
RemoteAccessSecurityGroupIngressEgressCFNStackID string `json:"remote-access-security-group-ingress-egress-cfn-stack-id" read-only:"true"`
// Status is the current status of EKS "Managed Node Group".
Status string `json:"status" read-only:"true"`
// Instances maps an instance ID to an EC2 instance object for the node group.
Instances map[string]ec2config.Instance `json:"instances" read-only:"true"`
// Logs maps each instance ID to a list of log file paths fetched via SSH access.
Logs map[string][]string `json:"logs" read-only:"true"`
}
// EnvironmentVariablePrefixAddOnManagedNodeGroups is the environment variable prefix used for "eksconfig".
const EnvironmentVariablePrefixAddOnManagedNodeGroups = AWS_K8S_TESTER_EKS_PREFIX + "ADD_ON_MANAGED_NODE_GROUPS_"
// IsEnabledAddOnManagedNodeGroups returns true if "AddOnManagedNodeGroups" is enabled.
// Otherwise, nil the field for "omitempty".
func (cfg *Config) IsEnabledAddOnManagedNodeGroups() bool {
if cfg.AddOnManagedNodeGroups == nil {
return false
}
if cfg.AddOnManagedNodeGroups.Enable {
return len(cfg.AddOnManagedNodeGroups.MNGs) > 0
}
cfg.AddOnManagedNodeGroups = nil
return false
}
func getDefaultAddOnManagedNodeGroups(name string) *AddOnManagedNodeGroups {
return &AddOnManagedNodeGroups{
Enable: false,
FetchLogs: true,
SigningName: "eks",
RoleCreate: true,
LogsDir: "", // to be auto-generated
MNGs: map[string]MNG{
name + "-mng-cpu": {
Name: name + "-mng-cpu",
RemoteAccessUserName: "ec2-user", // assume Amazon Linux 2
ReleaseVersion: "", // to be auto-filled by EKS API
AMIType: eks.AMITypesAl2X8664,
InstanceTypes: []string{DefaultNodeInstanceTypeCPU},
VolumeSize: DefaultNodeVolumeSize,
ASGMinSize: 1,
ASGMaxSize: 1,
ASGDesiredCapacity: 1,
},
},
}
}
func (cfg *Config) validateAddOnManagedNodeGroups() error {
if !cfg.IsEnabledAddOnManagedNodeGroups() {
return nil
}
n := len(cfg.AddOnManagedNodeGroups.MNGs)
if n == 0 {
return errors.New("empty MNGs")
}
if n > MNGsMaxLimit {
return fmt.Errorf("MNGs %d exceeds maximum number of MNGs which is %d", n, MNGsMaxLimit)
}
if cfg.Parameters.VersionValue < 1.14 {
return fmt.Errorf("Version %q not supported for AddOnManagedNodeGroups", cfg.Parameters.Version)
}
if cfg.AddOnManagedNodeGroups.LogsDir == "" {
cfg.AddOnManagedNodeGroups.LogsDir = filepath.Join(filepath.Dir(cfg.ConfigPath), cfg.Name+"-logs-mngs")
}
if cfg.AddOnManagedNodeGroups.LogsTarGzPath == "" {
cfg.AddOnManagedNodeGroups.LogsTarGzPath = filepath.Join(filepath.Dir(cfg.ConfigPath), cfg.Name+"-logs-ngs.tar.gz")
}
if !strings.HasSuffix(cfg.AddOnManagedNodeGroups.LogsTarGzPath, ".tar.gz") {
return fmt.Errorf("AddOnManagedNodeGroups.LogsTarGzPath %q must end with .tar.gz", cfg.AddOnManagedNodeGroups.LogsTarGzPath)
}
switch cfg.AddOnManagedNodeGroups.RoleCreate {
case true: // need create one, or already created
if cfg.AddOnManagedNodeGroups.RoleName == "" {
cfg.AddOnManagedNodeGroups.RoleName = cfg.Name + "-role-mng"
}
if cfg.AddOnManagedNodeGroups.RoleARN != "" {
// just ignore...
// could be populated from previous run
// do not error, so long as RoleCreate false, role won't be deleted
}
if len(cfg.AddOnManagedNodeGroups.RoleServicePrincipals) > 0 {
/*
create node group request failed (InvalidParameterException: Following required service principals [ec2.amazonaws.com] were not found in the trust relationships of nodeRole arn:aws:iam::...:role/test-mng-role
{
ClusterName: "test",
Message_: "Following required service principals [ec2.amazonaws.com] were not found in the trust relationships of nodeRole arn:aws:iam::...:role/test-mng-role",
NodegroupName: "test-mng-cpu"
})
*/
found := false
for _, pv := range cfg.AddOnManagedNodeGroups.RoleServicePrincipals {
if pv == "ec2.amazonaws.com" { // TODO: support China regions ec2.amazonaws.com.cn or eks.amazonaws.com.cn
found = true
break
}
}
if !found {
return fmt.Errorf("AddOnManagedNodeGroups.RoleServicePrincipals %q must include 'ec2.amazonaws.com'", cfg.AddOnManagedNodeGroups.RoleServicePrincipals)
}
}
case false: // use existing one
if cfg.AddOnManagedNodeGroups.RoleARN == "" {
return fmt.Errorf("AddOnManagedNodeGroups.RoleCreate false; expect non-empty RoleARN but got %q", cfg.AddOnManagedNodeGroups.RoleARN)
}
if cfg.AddOnManagedNodeGroups.RoleName == "" {
cfg.AddOnManagedNodeGroups.RoleName = getNameFromARN(cfg.AddOnManagedNodeGroups.RoleARN)
}
if len(cfg.AddOnManagedNodeGroups.RoleManagedPolicyARNs) > 0 {
return fmt.Errorf("AddOnManagedNodeGroups.RoleCreate false; expect empty RoleManagedPolicyARNs but got %q", cfg.AddOnManagedNodeGroups.RoleManagedPolicyARNs)
}
if len(cfg.AddOnManagedNodeGroups.RoleServicePrincipals) > 0 {
return fmt.Errorf("AddOnManagedNodeGroups.RoleCreate false; expect empty RoleServicePrincipals but got %q", cfg.AddOnManagedNodeGroups.RoleServicePrincipals)
}
}
names, processed := make(map[string]struct{}), make(map[string]MNG)
for k, v := range cfg.AddOnManagedNodeGroups.MNGs {
k = strings.ReplaceAll(k, "GetRef.Name", cfg.Name)
v.Name = strings.ReplaceAll(v.Name, "GetRef.Name", cfg.Name)
if v.Name == "" {
return fmt.Errorf("AddOnManagedNodeGroups.MNGs[%q].Name is empty", k)
}
if k != v.Name {
return fmt.Errorf("AddOnManagedNodeGroups.MNGs[%q].Name has different Name field %q", k, v.Name)
}
_, ok := names[v.Name]
if !ok {
names[v.Name] = struct{}{}
} else {
return fmt.Errorf("AddOnManagedNodeGroups.MNGs[%q].Name %q is redundant", k, v.Name)
}
if cfg.IsEnabledAddOnNodeGroups() {
_, ok = cfg.AddOnNodeGroups.ASGs[v.Name]
if ok {
return fmt.Errorf("MNGs[%q] name is conflicting with NG ASG", v.Name)
}
}
if len(v.InstanceTypes) > 4 {
return fmt.Errorf("too many InstaceTypes[%q]", v.InstanceTypes)
}
if v.VolumeSize == 0 {
v.VolumeSize = DefaultNodeVolumeSize
}
if v.RemoteAccessUserName == "" {
v.RemoteAccessUserName = "ec2-user"
}
if v.RemoteAccessUserName == "" {
v.RemoteAccessUserName = "ec2-user"
}
switch v.AMIType {
case eks.AMITypesAl2X8664:
if v.RemoteAccessUserName != "ec2-user" {
return fmt.Errorf("AMIType %q but unexpected RemoteAccessUserName %q", v.AMIType, v.RemoteAccessUserName)
}
case eks.AMITypesAl2X8664Gpu:
if v.RemoteAccessUserName != "ec2-user" {
return fmt.Errorf("AMIType %q but unexpected RemoteAccessUserName %q", v.AMIType, v.RemoteAccessUserName)
}
default:
return fmt.Errorf("unknown ASGs[%q].AMIType %q", k, v.AMIType)
}
switch v.AMIType {
case eks.AMITypesAl2X8664:
if len(v.InstanceTypes) == 0 {
v.InstanceTypes = []string{DefaultNodeInstanceTypeCPU}
}
case eks.AMITypesAl2X8664Gpu:
if len(v.InstanceTypes) == 0 {
v.InstanceTypes = []string{DefaultNodeInstanceTypeGPU}
}
default:
return fmt.Errorf("unknown AddOnManagedNodeGroups.MNGs[%q].AMIType %q", k, v.AMIType)
}
if cfg.IsEnabledAddOnNLBHelloWorld() || cfg.IsEnabledAddOnALB2048() {
for _, itp := range v.InstanceTypes {
// "m3.xlarge" or "c4.xlarge" will fail with "InvalidTarget: Targets {...} are not supported"
// ref. https://github.com/aws/amazon-vpc-cni-k8s/pull/821
// ref. https://github.com/kubernetes/kubernetes/issues/66044#issuecomment-408188524
switch {
case strings.HasPrefix(itp, "m3."),
strings.HasPrefix(itp, "c4."):
return fmt.Errorf("AddOnNLBHelloWorld.Enable[%v] || AddOnALB2048.Enable[%v], but older instance type InstanceTypes %q for %q",
cfg.IsEnabledAddOnNLBHelloWorld(),
cfg.IsEnabledAddOnALB2048(),
itp, k)
default:
}
}
}
if v.ASGMinSize > v.ASGMaxSize {
return fmt.Errorf("AddOnManagedNodeGroups.MNGs[%q].ASGMinSize %d > ASGMaxSize %d", k, v.ASGMinSize, v.ASGMaxSize)
}
if v.ASGDesiredCapacity > v.ASGMaxSize {
return fmt.Errorf("AddOnManagedNodeGroups.MNGs[%q].ASGDesiredCapacity %d > ASGMaxSize %d", k, v.ASGDesiredCapacity, v.ASGMaxSize)
}
if v.ASGMaxSize > MNGMaxLimit {
return fmt.Errorf("AddOnManagedNodeGroups.MNGs[%q].ASGMaxSize %d > MNGMaxLimit %d", k, v.ASGMaxSize, MNGMaxLimit)
}
if v.ASGDesiredCapacity > MNGMaxLimit {
return fmt.Errorf("AddOnManagedNodeGroups.MNGs[%q].ASGDesiredCapacity %d > MNGMaxLimit %d", k, v.ASGDesiredCapacity, MNGMaxLimit)
}
if cfg.IsEnabledAddOnNLBHelloWorld() && cfg.AddOnNLBHelloWorld.DeploymentReplicas < int32(v.ASGDesiredCapacity) {
cfg.AddOnNLBHelloWorld.DeploymentReplicas = int32(v.ASGDesiredCapacity)
}
if cfg.IsEnabledAddOnALB2048() && cfg.AddOnALB2048.DeploymentReplicasALB < int32(v.ASGDesiredCapacity) {
cfg.AddOnALB2048.DeploymentReplicasALB = int32(v.ASGDesiredCapacity)
}
if cfg.IsEnabledAddOnALB2048() && cfg.AddOnALB2048.DeploymentReplicas2048 < int32(v.ASGDesiredCapacity) {
cfg.AddOnALB2048.DeploymentReplicas2048 = int32(v.ASGDesiredCapacity)
}
processed[k] = v
}
cfg.AddOnManagedNodeGroups.MNGs = processed
return nil
}