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Create cloudmock implementations for elbv2 API calls used by future NLB support

This commit is contained in:
Peter Rifel 2020-10-29 17:22:04 -05:00
parent 1ed5af04f8
commit 839a1185cf
No known key found for this signature in database
GPG Key ID: BC6469E5B16DB2B6
6 changed files with 523 additions and 98 deletions
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9
cloudmock/aws/mockelbv2/BUILD.bazel
View File

@ -2,11 +2,18 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library")
go_library(
name = "go_default_library",
srcs = ["api.go"],
srcs = [
"api.go",
"listeners.go",
"loadbalancers.go",
"tags.go",
"targetgroups.go",
],
importpath = "k8s.io/kops/cloudmock/aws/mockelbv2",
visibility = ["//visibility:public"],
deps = [
"//vendor/github.com/aws/aws-sdk-go/aws:go_default_library",
"//vendor/github.com/aws/aws-sdk-go/aws/awserr:go_default_library",
"//vendor/github.com/aws/aws-sdk-go/service/elbv2:go_default_library",
"//vendor/github.com/aws/aws-sdk-go/service/elbv2/elbv2iface:go_default_library",
"//vendor/k8s.io/klog/v2:go_default_library",

106
cloudmock/aws/mockelbv2/api.go
View File

@ -19,10 +19,8 @@ package mockelbv2
import (
"sync"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/elbv2"
"github.com/aws/aws-sdk-go/service/elbv2/elbv2iface"
"k8s.io/klog/v2"
)
type MockELBV2 struct {
@ -31,7 +29,14 @@ type MockELBV2 struct {
mutex sync.Mutex
LoadBalancers map[string]*loadBalancer
lbCount int
TargetGroups map[string]*targetGroup
tgCount int
Listeners map[string]*listener
listenerCount int
LBAttributes map[string][]*elbv2.LoadBalancerAttribute
Tags map[string]*elbv2.TagDescription
}
type loadBalancer struct {
@ -42,99 +47,6 @@ type targetGroup struct {
description elbv2.TargetGroup
}
func (m *MockELBV2) DescribeLoadBalancers(request *elbv2.DescribeLoadBalancersInput) (*elbv2.DescribeLoadBalancersOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.V(2).Infof("DescribeLoadBalancers v2 %v", request)
if request.PageSize != nil {
klog.Warningf("PageSize not implemented")
}
if request.Marker != nil {
klog.Fatalf("Marker not implemented")
}
var elbs []*elbv2.LoadBalancer
for _, elb := range m.LoadBalancers {
match := false
if len(request.LoadBalancerArns) > 0 {
for _, name := range request.LoadBalancerArns {
if aws.StringValue(elb.description.LoadBalancerArn) == aws.StringValue(name) {
match = true
}
}
} else {
match = true
}
if match {
elbs = append(elbs, &elb.description)
}
}
return &elbv2.DescribeLoadBalancersOutput{
LoadBalancers: elbs,
}, nil
}
func (m *MockELBV2) DescribeLoadBalancersPages(request *elbv2.DescribeLoadBalancersInput, callback func(p *elbv2.DescribeLoadBalancersOutput, lastPage bool) (shouldContinue bool)) error {
// For the mock, we just send everything in one page
page, err := m.DescribeLoadBalancers(request)
if err != nil {
return err
}
callback(page, false)
return nil
}
func (m *MockELBV2) DescribeTargetGroups(request *elbv2.DescribeTargetGroupsInput) (*elbv2.DescribeTargetGroupsOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.V(2).Infof("DescribeTargetGroups %v", request)
if request.PageSize != nil {
klog.Warningf("PageSize not implemented")
}
if request.Marker != nil {
klog.Fatalf("Marker not implemented")
}
var tgs []*elbv2.TargetGroup
for _, tg := range m.TargetGroups {
match := false
if len(request.TargetGroupArns) > 0 {
for _, name := range request.TargetGroupArns {
if aws.StringValue(tg.description.TargetGroupArn) == aws.StringValue(name) {
match = true
}
}
} else {
match = true
}
if match {
tgs = append(tgs, &tg.description)
}
}
return &elbv2.DescribeTargetGroupsOutput{
TargetGroups: tgs,
}, nil
}
func (m *MockELBV2) DescribeTargetGroupsPages(request *elbv2.DescribeTargetGroupsInput, callback func(p *elbv2.DescribeTargetGroupsOutput, lastPage bool) (shouldContinue bool)) error {
page, err := m.DescribeTargetGroups(request)
if err != nil {
return err
}
callback(page, false)
return nil
type listener struct {
description elbv2.Listener
}

118
cloudmock/aws/mockelbv2/listeners.go Normal file
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@ -0,0 +1,118 @@
/*
Copyright 2020 The Kubernetes 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 mockelbv2
import (
"fmt"
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/elbv2"
"k8s.io/klog/v2"
)
func (m *MockELBV2) DescribeListeners(request *elbv2.DescribeListenersInput) (*elbv2.DescribeListenersOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("DescribeListeners v2 %v", request)
resp := &elbv2.DescribeListenersOutput{
Listeners: make([]*elbv2.Listener, 0),
}
for _, l := range m.Listeners {
listener := l.description
if aws.StringValue(request.LoadBalancerArn) == aws.StringValue(listener.LoadBalancerArn) {
resp.Listeners = append(resp.Listeners, &listener)
} else {
for _, reqARN := range request.ListenerArns {
if aws.StringValue(reqARN) == aws.StringValue(listener.ListenerArn) {
resp.Listeners = append(resp.Listeners, &listener)
}
}
}
}
return resp, nil
}
func (m *MockELBV2) CreateListener(request *elbv2.CreateListenerInput) (*elbv2.CreateListenerOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("CreateListener v2 %v", request)
l := elbv2.Listener{
DefaultActions: request.DefaultActions,
LoadBalancerArn: request.LoadBalancerArn,
Port: request.Port,
Certificates: request.Certificates,
Protocol: request.Protocol,
SslPolicy: request.SslPolicy,
}
lbARN := aws.StringValue(request.LoadBalancerArn)
if _, ok := m.LoadBalancers[lbARN]; !ok {
return nil, fmt.Errorf("LoadBalancerArn not found %v", aws.StringValue(request.LoadBalancerArn))
}
m.listenerCount++
arn := fmt.Sprintf("%v/%v", strings.Replace(lbARN, ":loadbalancer/", ":listener/", 1), m.listenerCount)
l.ListenerArn = aws.String(arn)
if m.Listeners == nil {
m.Listeners = make(map[string]*listener)
}
tgARN := aws.StringValue(l.DefaultActions[0].TargetGroupArn)
if _, ok := m.TargetGroups[tgARN]; ok {
found := false
for _, lb := range m.TargetGroups[tgARN].description.LoadBalancerArns {
if aws.StringValue(lb) == lbARN {
found = true
break
}
}
if !found {
m.TargetGroups[tgARN].description.LoadBalancerArns = append(m.TargetGroups[tgARN].description.LoadBalancerArns, aws.String(lbARN))
}
}
m.Listeners[arn] = &listener{description: l}
return &elbv2.CreateListenerOutput{Listeners: []*elbv2.Listener{&l}}, nil
}
func (m *MockELBV2) DeleteListener(request *elbv2.DeleteListenerInput) (*elbv2.DeleteListenerOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("DeleteListener v2 %v", request)
lARN := aws.StringValue(request.ListenerArn)
if _, ok := m.Listeners[lARN]; !ok {
return nil, fmt.Errorf("Listener not found %v", lARN)
}
delete(m.Listeners, lARN)
return nil, nil
}
func (m *MockELBV2) ModifyListener(request *elbv2.ModifyListenerInput) (*elbv2.ModifyListenerOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Fatalf("elbv2.ModifyListener() not implemented")
return nil, nil
}

185
cloudmock/aws/mockelbv2/loadbalancers.go Normal file
View File

@ -0,0 +1,185 @@
/*
Copyright 2020 The Kubernetes 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 mockelbv2
import (
"fmt"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/elbv2"
"k8s.io/klog/v2"
)
func (m *MockELBV2) DescribeLoadBalancers(request *elbv2.DescribeLoadBalancersInput) (*elbv2.DescribeLoadBalancersOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("DescribeLoadBalancers v2 %v", request)
if request.PageSize != nil {
klog.Warningf("PageSize not implemented")
}
if request.Marker != nil {
klog.Fatalf("Marker not implemented")
}
var elbs []*elbv2.LoadBalancer
for _, elb := range m.LoadBalancers {
match := false
if len(request.LoadBalancerArns) > 0 {
for _, name := range request.LoadBalancerArns {
if aws.StringValue(elb.description.LoadBalancerArn) == aws.StringValue(name) {
match = true
}
}
} else {
match = true
}
if match {
elbs = append(elbs, &elb.description)
}
}
return &elbv2.DescribeLoadBalancersOutput{
LoadBalancers: elbs,
}, nil
}
func (m *MockELBV2) DescribeLoadBalancersPages(request *elbv2.DescribeLoadBalancersInput, callback func(p *elbv2.DescribeLoadBalancersOutput, lastPage bool) (shouldContinue bool)) error {
// For the mock, we just send everything in one page
page, err := m.DescribeLoadBalancers(request)
if err != nil {
return err
}
callback(page, false)
return nil
}
func (m *MockELBV2) CreateLoadBalancer(request *elbv2.CreateLoadBalancerInput) (*elbv2.CreateLoadBalancerOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("CreateLoadBalancer v2 %v", request)
lb := elbv2.LoadBalancer{
LoadBalancerName: request.Name,
Scheme: request.Scheme,
Type: request.Type,
DNSName: aws.String(fmt.Sprintf("%v.amazonaws.com", aws.StringValue(request.Name))),
CanonicalHostedZoneId: aws.String("HZ123456"),
}
zones := make([]*elbv2.AvailabilityZone, 0)
for _, subnet := range request.Subnets {
zones = append(zones, &elbv2.AvailabilityZone{
SubnetId: subnet,
})
}
lb.AvailabilityZones = zones
// This is hardcoded because AWS derives it from the subnets above
// But we don'y rely on the NLB's VPC ID at all in awstasks
lb.VpcId = aws.String("vpc-1")
m.lbCount++
arn := fmt.Sprintf("arn:aws:elasticloadbalancing:us-test-1:000000000000:loadbalancer/net/%v/%v", aws.StringValue(request.Name), m.lbCount)
lb.LoadBalancerArn = aws.String(arn)
if m.LoadBalancers == nil {
m.LoadBalancers = make(map[string]*loadBalancer)
}
if m.LBAttributes == nil {
m.LBAttributes = make(map[string][]*elbv2.LoadBalancerAttribute)
}
m.LoadBalancers[arn] = &loadBalancer{description: lb}
m.LBAttributes[arn] = make([]*elbv2.LoadBalancerAttribute, 0)
return &elbv2.CreateLoadBalancerOutput{LoadBalancers: []*elbv2.LoadBalancer{&lb}}, nil
}
func (m *MockELBV2) DescribeLoadBalancerAttributes(request *elbv2.DescribeLoadBalancerAttributesInput) (*elbv2.DescribeLoadBalancerAttributesOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("DescribeLoadBalancerAttributes v2 %v", request)
if attr, ok := m.LBAttributes[aws.StringValue(request.LoadBalancerArn)]; ok {
return &elbv2.DescribeLoadBalancerAttributesOutput{
Attributes: attr,
}, nil
}
return nil, fmt.Errorf("LoadBalancerNotFound: %v", aws.StringValue(request.LoadBalancerArn))
}
func (m *MockELBV2) ModifyLoadBalancerAttributes(request *elbv2.ModifyLoadBalancerAttributesInput) (*elbv2.ModifyLoadBalancerAttributesOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("ModifyLoadBalancerAttributes v2 %v", request)
if m.LBAttributes == nil {
m.LBAttributes = make(map[string][]*elbv2.LoadBalancerAttribute)
}
arn := aws.StringValue(request.LoadBalancerArn)
if _, ok := m.LBAttributes[arn]; ok {
for _, reqAttr := range request.Attributes {
found := false
for _, lbAttr := range m.LBAttributes[arn] {
if aws.StringValue(reqAttr.Key) == aws.StringValue(lbAttr.Key) {
lbAttr.Value = reqAttr.Value
found = true
}
}
if !found {
m.LBAttributes[arn] = append(m.LBAttributes[arn], reqAttr)
}
}
return &elbv2.ModifyLoadBalancerAttributesOutput{
Attributes: m.LBAttributes[arn],
}, nil
}
return nil, fmt.Errorf("LoadBalancerNotFound: %v", aws.StringValue(request.LoadBalancerArn))
}
func (m *MockELBV2) SetSubnets(request *elbv2.SetSubnetsInput) (*elbv2.SetSubnetsOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Fatalf("elbv2.SetSubnets() not implemented")
return nil, nil
}
func (m *MockELBV2) DeleteLoadBalancer(request *elbv2.DeleteLoadBalancerInput) (*elbv2.DeleteLoadBalancerOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("DeleteLoadBalancer %v", request)
arn := aws.StringValue(request.LoadBalancerArn)
delete(m.LoadBalancers, arn)
for listenerARN, listener := range m.Listeners {
if aws.StringValue(listener.description.LoadBalancerArn) == arn {
delete(m.Listeners, listenerARN)
}
}
return &elbv2.DeleteLoadBalancerOutput{}, nil
}

77
cloudmock/aws/mockelbv2/tags.go Normal file
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@ -0,0 +1,77 @@
/*
Copyright 2020 The Kubernetes 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 mockelbv2
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/elbv2"
"k8s.io/klog/v2"
)
func (m *MockELBV2) AddTags(request *elbv2.AddTagsInput) (*elbv2.AddTagsOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("AddTags v2 %v", request)
if m.Tags == nil {
m.Tags = make(map[string]*elbv2.TagDescription)
}
for _, reqARN := range request.ResourceArns {
arn := aws.StringValue(reqARN)
if t, ok := m.Tags[arn]; ok {
for _, reqTag := range request.Tags {
found := false
for _, tag := range t.Tags {
if aws.StringValue(reqTag.Key) == aws.StringValue(tag.Key) {
tag.Value = reqTag.Value
}
}
if !found {
m.Tags[arn].Tags = append(m.Tags[arn].Tags, reqTag)
}
}
} else {
m.Tags[arn] = &elbv2.TagDescription{
ResourceArn: reqARN,
Tags: request.Tags,
}
}
}
return &elbv2.AddTagsOutput{}, nil
}
func (m *MockELBV2) DescribeTags(request *elbv2.DescribeTagsInput) (*elbv2.DescribeTagsOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("DescribeTags v2 %v", request)
resp := &elbv2.DescribeTagsOutput{
TagDescriptions: make([]*elbv2.TagDescription, 0),
}
for tagARN, tagDesc := range m.Tags {
for _, reqARN := range request.ResourceArns {
if tagARN == aws.StringValue(reqARN) {
resp.TagDescriptions = append(resp.TagDescriptions, tagDesc)
}
}
}
return resp, nil
}

126
cloudmock/aws/mockelbv2/targetgroups.go Normal file
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@ -0,0 +1,126 @@
/*
Copyright 2020 The Kubernetes 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 mockelbv2
import (
"fmt"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/elbv2"
"k8s.io/klog/v2"
)
func (m *MockELBV2) DescribeTargetGroups(request *elbv2.DescribeTargetGroupsInput) (*elbv2.DescribeTargetGroupsOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("DescribeTargetGroups %v", request)
if request.PageSize != nil {
klog.Warningf("PageSize not implemented")
}
if request.Marker != nil {
klog.Fatalf("Marker not implemented")
}
var tgs []*elbv2.TargetGroup
for _, tg := range m.TargetGroups {
match := false
if len(request.TargetGroupArns) > 0 {
for _, name := range request.TargetGroupArns {
if aws.StringValue(tg.description.TargetGroupArn) == aws.StringValue(name) {
match = true
}
}
} else if request.LoadBalancerArn != nil {
if len(tg.description.LoadBalancerArns) > 0 && aws.StringValue(tg.description.LoadBalancerArns[0]) == aws.StringValue(request.LoadBalancerArn) {
match = true
}
} else if len(request.Names) > 0 {
for _, name := range request.Names {
if aws.StringValue(tg.description.TargetGroupName) == aws.StringValue(name) {
match = true
}
}
} else {
match = true
}
if match {
tgs = append(tgs, &tg.description)
}
}
if len(tgs) == 0 && len(request.TargetGroupArns) > 0 || request.LoadBalancerArn != nil {
return nil, awserr.New(elbv2.ErrCodeTargetGroupNotFoundException, "target group not found", nil)
}
return &elbv2.DescribeTargetGroupsOutput{
TargetGroups: tgs,
}, nil
}
func (m *MockELBV2) DescribeTargetGroupsPages(request *elbv2.DescribeTargetGroupsInput, callback func(p *elbv2.DescribeTargetGroupsOutput, lastPage bool) (shouldContinue bool)) error {
page, err := m.DescribeTargetGroups(request)
if err != nil {
return err
}
callback(page, false)
return nil
}
func (m *MockELBV2) CreateTargetGroup(request *elbv2.CreateTargetGroupInput) (*elbv2.CreateTargetGroupOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("CreateTargetGroup %v", request)
tg := elbv2.TargetGroup{
TargetGroupName: request.Name,
Port: request.Port,
Protocol: request.Protocol,
VpcId: request.VpcId,
HealthyThresholdCount: request.HealthyThresholdCount,
UnhealthyThresholdCount: request.UnhealthyThresholdCount,
}
m.tgCount++
arn := fmt.Sprintf("arn:aws:elasticloadbalancing:us-test-1:000000000000:targetgroup/%v/%v", aws.StringValue(request.Name), m.tgCount)
tg.TargetGroupArn = aws.String(arn)
if m.TargetGroups == nil {
m.TargetGroups = make(map[string]*targetGroup)
}
m.TargetGroups[arn] = &targetGroup{description: tg}
return &elbv2.CreateTargetGroupOutput{TargetGroups: []*elbv2.TargetGroup{&tg}}, nil
}
func (m *MockELBV2) DeleteTargetGroup(request *elbv2.DeleteTargetGroupInput) (*elbv2.DeleteTargetGroupOutput, error) {
m.mutex.Lock()
defer m.mutex.Unlock()
klog.Infof("DeleteTargetGroup %v", request)
arn := aws.StringValue(request.TargetGroupArn)
delete(m.TargetGroups, arn)
return &elbv2.DeleteTargetGroupOutput{}, nil
}