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Filter out AWS internal tags when reconciling #5181

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Filter out AWS internal tags when reconciling #5181

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12 changes: 9 additions & 3 deletions pkg/cloud/tags/tags.go
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@ import (
"context"
"fmt"
"sort"
"strings"

"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/ec2"
Expand Down Expand Up @@ -99,7 +100,10 @@ func WithEC2(ec2client ec2iface.EC2API) BuilderOption {
// For testing, we need sorted keys
sortedKeys := make([]string, 0, len(tags))
for k := range tags {
sortedKeys = append(sortedKeys, k)
// We want to filter out the tag keys that start with `aws:` as they are reserved for internal AWS use.
if !strings.HasPrefix(k, "aws:") {
sortedKeys = append(sortedKeys, k)
}
}
sort.Strings(sortedKeys)

Expand Down Expand Up @@ -127,10 +131,12 @@ func WithEKS(eksclient eksiface.EKSAPI) BuilderOption {
return func(b *Builder) {
b.applyFunc = func(params *infrav1.BuildParams) error {
tags := infrav1.Build(*params)

eksTags := make(map[string]*string, len(tags))
for k, v := range tags {
eksTags[k] = aws.String(v)
// We want to filter out the tag keys that start with `aws:` as they are reserved for internal AWS use.
if !strings.HasPrefix(k, "aws:") {
eksTags[k] = aws.String(v)
}
}

tagResourcesInput := &eks.TagResourceInput{
Expand Down
89 changes: 67 additions & 22 deletions pkg/cloud/tags/tags_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -34,14 +34,7 @@ import (
)

var (
bp = infrav1.BuildParams{
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I inlined the BuildParams object on each test case to make it easier to see what's being tested.

Lifecycle: infrav1.ResourceLifecycleOwned,
ClusterName: "testcluster",
Name: aws.String("test"),
Role: aws.String("testrole"),
Additional: map[string]string{"k1": "v1"},
}
tags = []*ec2.Tag{
expectedTags = []*ec2.Tag{
{
Key: aws.String("Name"),
Value: aws.String("test"),
Expand Down Expand Up @@ -140,30 +133,64 @@ func TestTagsEnsureWithEC2(t *testing.T) {
expect func(m *mocks.MockEC2APIMockRecorder)
}{
{
name: "Should return error when create tag fails",
builder: Builder{params: &bp},
name: "Should return error when create tag fails",
builder: Builder{params: &infrav1.BuildParams{
Lifecycle: infrav1.ResourceLifecycleOwned,
ClusterName: "testcluster",
Name: aws.String("test"),
Role: aws.String("testrole"),
Additional: map[string]string{"k1": "v1"},
}},
expect: func(m *mocks.MockEC2APIMockRecorder) {
m.CreateTagsWithContext(context.TODO(), gomock.Eq(&ec2.CreateTagsInput{
Resources: aws.StringSlice([]string{""}),
Tags: tags,
Tags: expectedTags,
})).Return(nil, errors.New("failed to create tag"))
},
},
{
name: "Should return error when optional configuration for builder is nil",
builder: Builder{params: &bp, applyFunc: nil},
name: "Should return error when optional configuration for builder is nil",
builder: Builder{params: &infrav1.BuildParams{
Lifecycle: infrav1.ResourceLifecycleOwned,
ClusterName: "testcluster",
Name: aws.String("test"),
Role: aws.String("testrole"),
Additional: map[string]string{"k1": "v1"},
}, applyFunc: nil},
},
{
name: "Should return error when build params is nil",
builder: Builder{params: nil},
},
{
name: "Should ensure tags successfully",
builder: Builder{params: &bp},
name: "Should ensure tags successfully",
builder: Builder{params: &infrav1.BuildParams{
Lifecycle: infrav1.ResourceLifecycleOwned,
ClusterName: "testcluster",
Name: aws.String("test"),
Role: aws.String("testrole"),
Additional: map[string]string{"k1": "v1"},
}},
expect: func(m *mocks.MockEC2APIMockRecorder) {
m.CreateTagsWithContext(context.TODO(), gomock.Eq(&ec2.CreateTagsInput{
Resources: aws.StringSlice([]string{""}),
Tags: expectedTags,
})).Return(nil, nil)
},
},
{
name: "Should filter internal aws tags",
builder: Builder{params: &infrav1.BuildParams{
Lifecycle: infrav1.ResourceLifecycleOwned,
ClusterName: "testcluster",
Name: aws.String("test"),
Role: aws.String("testrole"),
Additional: map[string]string{"k1": "v1", "aws:cloudformation:stack-name": "cloudformation-stack-name"},
}},
expect: func(m *mocks.MockEC2APIMockRecorder) {
m.CreateTagsWithContext(context.TODO(), gomock.Eq(&ec2.CreateTagsInput{
Resources: aws.StringSlice([]string{""}),
Tags: tags,
Tags: expectedTags,
})).Return(nil, nil)
},
},
Expand Down Expand Up @@ -198,8 +225,14 @@ func TestTagsEnsureWithEKS(t *testing.T) {
expect func(m *mock_eksiface.MockEKSAPIMockRecorder)
}{
{
name: "Should return error when tag resources fails",
builder: Builder{params: &bp},
name: "Should return error when tag resources fails",
builder: Builder{params: &infrav1.BuildParams{
Lifecycle: infrav1.ResourceLifecycleOwned,
ClusterName: "testcluster",
Name: aws.String("test"),
Role: aws.String("testrole"),
Additional: map[string]string{"k1": "v1"},
}},
expect: func(m *mock_eksiface.MockEKSAPIMockRecorder) {
m.TagResource(gomock.Eq(&eks.TagResourceInput{
ResourceArn: aws.String(""),
Expand All @@ -208,8 +241,14 @@ func TestTagsEnsureWithEKS(t *testing.T) {
},
},
{
name: "Should ensure tags successfully",
builder: Builder{params: &bp},
name: "Should ensure tags successfully",
builder: Builder{params: &infrav1.BuildParams{
Lifecycle: infrav1.ResourceLifecycleOwned,
ClusterName: "testcluster",
Name: aws.String("test"),
Role: aws.String("testrole"),
Additional: map[string]string{"k1": "v1"},
}},
expect: func(m *mock_eksiface.MockEKSAPIMockRecorder) {
m.TagResource(gomock.Eq(&eks.TagResourceInput{
ResourceArn: aws.String(""),
Expand Down Expand Up @@ -243,10 +282,16 @@ func TestTagsEnsureWithEKS(t *testing.T) {

func TestTagsBuildParamsToTagSpecification(t *testing.T) {
g := NewWithT(t)
tagSpec := BuildParamsToTagSpecification("test-resource", bp)
tagSpec := BuildParamsToTagSpecification("test-resource", infrav1.BuildParams{
Lifecycle: infrav1.ResourceLifecycleOwned,
ClusterName: "testcluster",
Name: aws.String("test"),
Role: aws.String("testrole"),
Additional: map[string]string{"k1": "v1"},
})
expectedTagSpec := &ec2.TagSpecification{
ResourceType: aws.String("test-resource"),
Tags: tags,
Tags: expectedTags,
}
g.Expect(expectedTagSpec).To(Equal(tagSpec))
}
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