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Update rule management to avoid sporadic 503 errors #4039

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Update rule management to avoid sporadic 503 errors #4039

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5426ba0
Update rule management to avoid sporadic 503 errors
shraddhabang Jan 30, 2025
3072be5
Update rule management to avoid sporadic 503 errors
shraddhabang Jan 30, 2025
6a1e654
Update rule management to avoid sporadic 503 errors
shraddhabang Jan 30, 2025
16900de
Update rule management to avoid sporadic 503 errors
shraddhabang Jan 30, 2025
42385aa
Update rule management to avoid sporadic 503 errors
shraddhabang Jan 30, 2025
7541235
Update rule management to avoid sporadic 503 errors
shraddhabang Jan 30, 2025
3f7216c
Update rule management to avoid sporadic 503 errors
shraddhabang Jan 30, 2025
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2 changes: 1 addition & 1 deletion .go-version
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Original file line number Diff line number Diff line change
@@ -1 +1 @@
1.22.8
1.23.6
3 changes: 2 additions & 1 deletion docs/install/iam_policy.json
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@wweiwei-li wweiwei-li Feb 24, 2025 •
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Should we move "elasticloadbalancing:SetRulePriorities" to where we have condition, like other modify calls

"Condition": {
    "Null": {
        "aws:ResourceTag/elbv2.k8s.aws/cluster": "false"
    }
}

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Yes. I agree. Nice catch fixed now. :)

Original file line number Diff line number Diff line change
Expand Up @@ -239,7 +239,8 @@
"elasticloadbalancing:ModifyListener",
"elasticloadbalancing:AddListenerCertificates",
"elasticloadbalancing:RemoveListenerCertificates",
"elasticloadbalancing:ModifyRule"
"elasticloadbalancing:ModifyRule",
"elasticloadbalancing:SetRulePriorities"
],
"Resource": "*"
}
Expand Down
3 changes: 2 additions & 1 deletion docs/install/iam_policy_cn.json
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Original file line number Diff line number Diff line change
Expand Up @@ -239,7 +239,8 @@
"elasticloadbalancing:ModifyListener",
"elasticloadbalancing:AddListenerCertificates",
"elasticloadbalancing:RemoveListenerCertificates",
"elasticloadbalancing:ModifyRule"
"elasticloadbalancing:ModifyRule",
"elasticloadbalancing:SetRulePriorities"
],
"Resource": "*"
}
Expand Down
3 changes: 2 additions & 1 deletion docs/install/iam_policy_iso.json
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Original file line number Diff line number Diff line change
Expand Up @@ -234,7 +234,8 @@
"elasticloadbalancing:ModifyListener",
"elasticloadbalancing:AddListenerCertificates",
"elasticloadbalancing:RemoveListenerCertificates",
"elasticloadbalancing:ModifyRule"
"elasticloadbalancing:ModifyRule",
"elasticloadbalancing:SetRulePriorities"
],
"Resource": "*"
}
Expand Down
3 changes: 2 additions & 1 deletion docs/install/iam_policy_isob.json
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Original file line number Diff line number Diff line change
Expand Up @@ -234,7 +234,8 @@
"elasticloadbalancing:ModifyListener",
"elasticloadbalancing:AddListenerCertificates",
"elasticloadbalancing:RemoveListenerCertificates",
"elasticloadbalancing:ModifyRule"
"elasticloadbalancing:ModifyRule",
"elasticloadbalancing:SetRulePriorities"
],
"Resource": "*"
}
Expand Down
3 changes: 2 additions & 1 deletion docs/install/iam_policy_isoe.json
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Original file line number Diff line number Diff line change
Expand Up @@ -234,7 +234,8 @@
"elasticloadbalancing:ModifyListener",
"elasticloadbalancing:AddListenerCertificates",
"elasticloadbalancing:RemoveListenerCertificates",
"elasticloadbalancing:ModifyRule"
"elasticloadbalancing:ModifyRule",
"elasticloadbalancing:SetRulePriorities"
],
"Resource": "*"
}
Expand Down
3 changes: 2 additions & 1 deletion docs/install/iam_policy_isof.json
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Original file line number Diff line number Diff line change
Expand Up @@ -234,7 +234,8 @@
"elasticloadbalancing:ModifyListener",
"elasticloadbalancing:AddListenerCertificates",
"elasticloadbalancing:RemoveListenerCertificates",
"elasticloadbalancing:ModifyRule"
"elasticloadbalancing:ModifyRule",
"elasticloadbalancing:SetRulePriorities"
],
"Resource": "*"
}
Expand Down
3 changes: 2 additions & 1 deletion docs/install/iam_policy_us-gov.json
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Original file line number Diff line number Diff line change
Expand Up @@ -239,7 +239,8 @@
"elasticloadbalancing:ModifyListener",
"elasticloadbalancing:AddListenerCertificates",
"elasticloadbalancing:RemoveListenerCertificates",
"elasticloadbalancing:ModifyRule"
"elasticloadbalancing:ModifyRule",
"elasticloadbalancing:SetRulePriorities"
],
"Resource": "*"
}
Expand Down
7 changes: 3 additions & 4 deletions go.mod
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Original file line number Diff line number Diff line change
@@ -1,11 +1,12 @@
module sigs.k8s.io/aws-load-balancer-controller

go 1.22.8
go 1.23.6

require (
github.com/aws/aws-sdk-go v1.55.5
github.com/aws/aws-sdk-go-v2 v1.32.6
github.com/aws/aws-sdk-go-v2/config v1.27.27
github.com/aws/aws-sdk-go-v2/credentials v1.17.27
github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.11
github.com/aws/aws-sdk-go-v2/service/acm v1.28.4
github.com/aws/aws-sdk-go-v2/service/appmesh v1.27.7
Expand All @@ -14,6 +15,7 @@ require (
github.com/aws/aws-sdk-go-v2/service/resourcegroupstaggingapi v1.23.3
github.com/aws/aws-sdk-go-v2/service/servicediscovery v1.31.7
github.com/aws/aws-sdk-go-v2/service/shield v1.27.3
github.com/aws/aws-sdk-go-v2/service/sts v1.30.3
github.com/aws/aws-sdk-go-v2/service/wafregional v1.23.3
github.com/aws/aws-sdk-go-v2/service/wafv2 v1.51.4
github.com/aws/smithy-go v1.22.1
Expand Down Expand Up @@ -56,16 +58,13 @@ require (
github.com/ajg/form v1.5.1 // indirect
github.com/andybalholm/brotli v1.0.4 // indirect
github.com/asaskevich/govalidator v0.0.0-20200428143746-21a406dcc535 // indirect
github.com/aws/aws-sdk-go-v2/credentials v1.17.27 // indirect
github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.25 // indirect
github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.25 // indirect
github.com/aws/aws-sdk-go-v2/internal/ini v1.8.0 // indirect
github.com/aws/aws-sdk-go-v2/service/iam v1.36.3 // indirect
github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.3 // indirect
github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.17 // indirect
github.com/aws/aws-sdk-go-v2/service/sso v1.22.4 // indirect
github.com/aws/aws-sdk-go-v2/service/ssooidc v1.26.4 // indirect
github.com/aws/aws-sdk-go-v2/service/sts v1.30.3 // indirect
github.com/beorn7/perks v1.0.1 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/chai2010/gettext-go v1.0.2 // indirect
Expand Down
1 change: 0 additions & 1 deletion go.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,6 @@ github.com/aws/aws-sdk-go-v2/service/ec2 v1.173.0 h1:ta62lid9JkIpKZtZZXSj6rP2AqY
github.com/aws/aws-sdk-go-v2/service/ec2 v1.173.0/go.mod h1:o6QDjdVKpP5EF0dp/VlvqckzuSDATr1rLdHt3A5m0YY=
github.com/aws/aws-sdk-go-v2/service/elasticloadbalancingv2 v1.43.1 h1:L9Wt9zgtoYKIlaeFTy+EztGjL4oaXBBGtVXA+jaeYko=
github.com/aws/aws-sdk-go-v2/service/elasticloadbalancingv2 v1.43.1/go.mod h1:yxzLdxt7bVGvIOPYIKFtiaJCJnx2ChlIIvlhW4QgI6M=
github.com/aws/aws-sdk-go-v2/service/iam v1.36.3/go.mod h1:HSvujsK8xeEHMIB18oMXjSfqaN9cVqpo/MtHJIksQRk=
github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.3 h1:dT3MqvGhSoaIhRseqw2I0yH81l7wiR2vjs57O51EAm8=
github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.3/go.mod h1:GlAeCkHwugxdHaueRr4nhPuY+WW+gR8UjlcqzPr1SPI=
github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.17 h1:HGErhhrxZlQ044RiM+WdoZxp0p+EGM62y3L6pwA4olE=
Expand Down
11 changes: 10 additions & 1 deletion pkg/aws/services/elbv2.go
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Expand Up @@ -50,7 +50,8 @@ type ELBV2 interface {
DescribeRulesWithContext(ctx context.Context, input *elasticloadbalancingv2.DescribeRulesInput) (*elasticloadbalancingv2.DescribeRulesOutput, error)
CreateRuleWithContext(ctx context.Context, input *elasticloadbalancingv2.CreateRuleInput) (*elasticloadbalancingv2.CreateRuleOutput, error)
DeleteRuleWithContext(ctx context.Context, input *elasticloadbalancingv2.DeleteRuleInput) (*elasticloadbalancingv2.DeleteRuleOutput, error)
ModifyRuleWithContext(ctx context.Context, inout *elasticloadbalancingv2.ModifyRuleInput) (*elasticloadbalancingv2.ModifyRuleOutput, error)
ModifyRuleWithContext(ctx context.Context, input *elasticloadbalancingv2.ModifyRuleInput) (*elasticloadbalancingv2.ModifyRuleOutput, error)
SetRulePrioritiesWithContext(ctx context.Context, input *elasticloadbalancingv2.SetRulePrioritiesInput) (*elasticloadbalancingv2.SetRulePrioritiesOutput, error)
RegisterTargetsWithContext(ctx context.Context, input *elasticloadbalancingv2.RegisterTargetsInput) (*elasticloadbalancingv2.RegisterTargetsOutput, error)
DeregisterTargetsWithContext(ctx context.Context, input *elasticloadbalancingv2.DeregisterTargetsInput) (*elasticloadbalancingv2.DeregisterTargetsOutput, error)
DescribeTrustStoresWithContext(ctx context.Context, input *elasticloadbalancingv2.DescribeTrustStoresInput) (*elasticloadbalancingv2.DescribeTrustStoresOutput, error)
Expand Down Expand Up @@ -163,6 +164,14 @@ func (c *elbv2Client) DeleteRuleWithContext(ctx context.Context, input *elasticl
return client.DeleteRule(ctx, input)
}

func (c *elbv2Client) SetRulePrioritiesWithContext(ctx context.Context, input *elasticloadbalancingv2.SetRulePrioritiesInput) (*elasticloadbalancingv2.SetRulePrioritiesOutput, error) {
client, err := c.awsClientsProvider.GetELBv2Client(ctx, "SetRulePriorities")
if err != nil {
return nil, err
}
return client.SetRulePriorities(ctx, input)
}

func (c *elbv2Client) CreateRuleWithContext(ctx context.Context, input *elasticloadbalancingv2.CreateRuleInput) (*elasticloadbalancingv2.CreateRuleOutput, error) {
client, err := c.getClient(ctx, "CreateRule")
if err != nil {
Expand Down
15 changes: 15 additions & 0 deletions pkg/aws/services/elbv2_mocks.go
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127 changes: 86 additions & 41 deletions pkg/deploy/elbv2/listener_rule_manager.go
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Original file line number Diff line number Diff line change
Expand Up @@ -6,24 +6,29 @@ import (
elbv2sdk "github.com/aws/aws-sdk-go-v2/service/elasticloadbalancingv2"
elbv2types "github.com/aws/aws-sdk-go-v2/service/elasticloadbalancingv2/types"
"github.com/go-logr/logr"
"github.com/google/go-cmp/cmp"
"github.com/pkg/errors"
"sigs.k8s.io/aws-load-balancer-controller/pkg/aws/services"
"sigs.k8s.io/aws-load-balancer-controller/pkg/config"
"sigs.k8s.io/aws-load-balancer-controller/pkg/deploy/tracking"
elbv2equality "sigs.k8s.io/aws-load-balancer-controller/pkg/equality/elbv2"
elbv2model "sigs.k8s.io/aws-load-balancer-controller/pkg/model/elbv2"
"sigs.k8s.io/aws-load-balancer-controller/pkg/runtime"
"slices"
"sort"
"strconv"
"time"
)

// ListenerRuleManager is responsible for create/update/delete ListenerRule resources.
type ListenerRuleManager interface {
Create(ctx context.Context, resLR *elbv2model.ListenerRule) (elbv2model.ListenerRuleStatus, error)
Create(ctx context.Context, resLR *elbv2model.ListenerRule, desiredActionsAndConditions *resLRDesiredActionsAndConditionsPair) (elbv2model.ListenerRuleStatus, error)

Update(ctx context.Context, resLR *elbv2model.ListenerRule, sdkLR ListenerRuleWithTags) (elbv2model.ListenerRuleStatus, error)
UpdateRules(ctx context.Context, resLR *elbv2model.ListenerRule, sdkLR ListenerRuleWithTags, desiredActionsAndConditions *resLRDesiredActionsAndConditionsPair) (elbv2model.ListenerRuleStatus, error)

UpdateRulesTags(ctx context.Context, resLR *elbv2model.ListenerRule, sdkLR ListenerRuleWithTags) (elbv2model.ListenerRuleStatus, error)

Delete(ctx context.Context, sdkLR ListenerRuleWithTags) error

SetRulePriorities(ctx context.Context, matchedResAndSDKLRsBySettings []resAndSDKListenerRulePair, unmatchedSDKLRs []ListenerRuleWithTags) error
}

// NewDefaultListenerRuleManager constructs new defaultListenerRuleManager.
Expand Down Expand Up @@ -54,8 +59,8 @@ type defaultListenerRuleManager struct {
waitLSExistenceTimeout time.Duration
}

func (m *defaultListenerRuleManager) Create(ctx context.Context, resLR *elbv2model.ListenerRule) (elbv2model.ListenerRuleStatus, error) {
req, err := buildSDKCreateListenerRuleInput(resLR.Spec, m.featureGates)
func (m *defaultListenerRuleManager) Create(ctx context.Context, resLR *elbv2model.ListenerRule, desiredActionsAndConditions *resLRDesiredActionsAndConditionsPair) (elbv2model.ListenerRuleStatus, error) {
req, err := buildSDKCreateListenerRuleInput(resLR.Spec, desiredActionsAndConditions, m.featureGates)
if err != nil {
return elbv2model.ListenerRuleStatus{}, err
}
Expand Down Expand Up @@ -90,13 +95,17 @@ func (m *defaultListenerRuleManager) Create(ctx context.Context, resLR *elbv2mod
return buildResListenerRuleStatus(sdkLR), nil
}

func (m *defaultListenerRuleManager) Update(ctx context.Context, resLR *elbv2model.ListenerRule, sdkLR ListenerRuleWithTags) (elbv2model.ListenerRuleStatus, error) {
func (m *defaultListenerRuleManager) UpdateRulesTags(ctx context.Context, resLR *elbv2model.ListenerRule, sdkLR ListenerRuleWithTags) (elbv2model.ListenerRuleStatus, error) {
if m.featureGates.Enabled(config.ListenerRulesTagging) {
if err := m.updateSDKListenerRuleWithTags(ctx, resLR, sdkLR); err != nil {
return elbv2model.ListenerRuleStatus{}, err
}
}
if err := m.updateSDKListenerRuleWithSettings(ctx, resLR, sdkLR); err != nil {
return buildResListenerRuleStatus(sdkLR), nil
}

func (m *defaultListenerRuleManager) UpdateRules(ctx context.Context, resLR *elbv2model.ListenerRule, sdkLR ListenerRuleWithTags, desiredActionsAndConditions *resLRDesiredActionsAndConditionsPair) (elbv2model.ListenerRuleStatus, error) {
if err := m.updateSDKListenerRuleWithSettings(ctx, resLR, sdkLR, desiredActionsAndConditions); err != nil {
return elbv2model.ListenerRuleStatus{}, err
}
return buildResListenerRuleStatus(sdkLR), nil
Expand All @@ -116,15 +125,48 @@ func (m *defaultListenerRuleManager) Delete(ctx context.Context, sdkLR ListenerR
return nil
}

func (m *defaultListenerRuleManager) updateSDKListenerRuleWithSettings(ctx context.Context, resLR *elbv2model.ListenerRule, sdkLR ListenerRuleWithTags) error {
desiredActions, err := buildSDKActions(resLR.Spec.Actions, m.featureGates)
if err != nil {
func (m *defaultListenerRuleManager) SetRulePriorities(ctx context.Context, matchedResAndSDKLRsBySettings []resAndSDKListenerRulePair, unmatchedSDKLRs []ListenerRuleWithTags) error {
var lastAvailablePriority int32 = 50000
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just for my own understanding, it's impossible for a user to model a rule with 50k priority in K8s. It would have to be done via an out of band approach therefore would also be eligible for removal

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Correct.

var sdkLRs []ListenerRuleWithTags

// Sort the unmatched existing SDK rules based on their priority to be pushed down in same order
sort.Slice(unmatchedSDKLRs, func(i, j int) bool {
priorityI, _ := strconv.Atoi(awssdk.ToString(unmatchedSDKLRs[i].ListenerRule.Priority))
priorityJ, _ := strconv.Atoi(awssdk.ToString(unmatchedSDKLRs[j].ListenerRule.Priority))
return priorityI < priorityJ
})
// Push down all the unmatched existing SDK rules on load balancer so that updated rules can take their place
for _, sdkLR := range slices.Backward(unmatchedSDKLRs) {
sdkLR.ListenerRule.Priority = awssdk.String(strconv.Itoa(int(lastAvailablePriority)))
sdkLRs = append(sdkLRs, sdkLR)
lastAvailablePriority--
}
//Reprioratize matched rules by settings
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nit: Reprioritize

for _, resAndSDKLR := range matchedResAndSDKLRsBySettings {
resAndSDKLR.sdkLR.ListenerRule.Priority = awssdk.String(strconv.Itoa(int(resAndSDKLR.resLR.Spec.Priority)))
sdkLRs = append(sdkLRs, resAndSDKLR.sdkLR)
}
req := buildSDKSetRulePrioritiesInput(sdkLRs)
m.logger.Info("setting listener rule priorities",
"rule priority pairs", req.RulePriorities)
if _, err := m.elbv2Client.SetRulePrioritiesWithContext(ctx, req); err != nil {
return err
}
desiredConditions := buildSDKRuleConditions(resLR.Spec.Conditions)
if !isSDKListenerRuleSettingsDrifted(resLR.Spec, sdkLR, desiredActions, desiredConditions) {
return nil
}
m.logger.Info("setting listener rule priorities complete",
"rule priority pairs", req.RulePriorities)
return nil
}

func (m *defaultListenerRuleManager) updateSDKListenerRuleWithTags(ctx context.Context, resLR *elbv2model.ListenerRule, sdkLR ListenerRuleWithTags) error {
desiredTags := m.trackingProvider.ResourceTags(resLR.Stack(), resLR, resLR.Spec.Tags)
return m.taggingManager.ReconcileTags(ctx, awssdk.ToString(sdkLR.ListenerRule.RuleArn), desiredTags,
WithCurrentTags(sdkLR.Tags),
WithIgnoredTagKeys(m.externalManagedTags))
}

func (m *defaultListenerRuleManager) updateSDKListenerRuleWithSettings(ctx context.Context, resLR *elbv2model.ListenerRule, sdkLR ListenerRuleWithTags, desiredActionsAndConditions *resLRDesiredActionsAndConditionsPair) error {
desiredActions := desiredActionsAndConditions.desiredActions
desiredConditions := desiredActionsAndConditions.desiredConditions

req := buildSDKModifyListenerRuleInput(resLR.Spec, desiredActions, desiredConditions)
req.RuleArn = sdkLR.ListenerRule.RuleArn
Expand All @@ -142,27 +184,7 @@ func (m *defaultListenerRuleManager) updateSDKListenerRuleWithSettings(ctx conte
return nil
}

func (m *defaultListenerRuleManager) updateSDKListenerRuleWithTags(ctx context.Context, resLR *elbv2model.ListenerRule, sdkLR ListenerRuleWithTags) error {
desiredTags := m.trackingProvider.ResourceTags(resLR.Stack(), resLR, resLR.Spec.Tags)
return m.taggingManager.ReconcileTags(ctx, awssdk.ToString(sdkLR.ListenerRule.RuleArn), desiredTags,
WithCurrentTags(sdkLR.Tags),
WithIgnoredTagKeys(m.externalManagedTags))
}

func isSDKListenerRuleSettingsDrifted(lrSpec elbv2model.ListenerRuleSpec, sdkLR ListenerRuleWithTags,
desiredActions []elbv2types.Action, desiredConditions []elbv2types.RuleCondition) bool {

if !cmp.Equal(desiredActions, sdkLR.ListenerRule.Actions, elbv2equality.CompareOptionForActions()) {
return true
}
if !cmp.Equal(desiredConditions, sdkLR.ListenerRule.Conditions, elbv2equality.CompareOptionForRuleConditions()) {
return true
}

return false
}

func buildSDKCreateListenerRuleInput(lrSpec elbv2model.ListenerRuleSpec, featureGates config.FeatureGates) (*elbv2sdk.CreateRuleInput, error) {
func buildSDKCreateListenerRuleInput(lrSpec elbv2model.ListenerRuleSpec, desiredActionsAndConditions *resLRDesiredActionsAndConditionsPair, featureGates config.FeatureGates) (*elbv2sdk.CreateRuleInput, error) {
ctx := context.Background()
lsARN, err := lrSpec.ListenerARN.Resolve(ctx)
if err != nil {
Expand All @@ -171,12 +193,20 @@ func buildSDKCreateListenerRuleInput(lrSpec elbv2model.ListenerRuleSpec, feature
sdkObj := &elbv2sdk.CreateRuleInput{}
sdkObj.ListenerArn = awssdk.String(lsARN)
sdkObj.Priority = awssdk.Int32(lrSpec.Priority)
actions, err := buildSDKActions(lrSpec.Actions, featureGates)
if err != nil {
return nil, err
if desiredActionsAndConditions != nil && desiredActionsAndConditions.desiredActions != nil {
sdkObj.Actions = desiredActionsAndConditions.desiredActions
} else {
actions, err := buildSDKActions(lrSpec.Actions, featureGates)
if err != nil {
return nil, err
}
sdkObj.Actions = actions
}
if desiredActionsAndConditions != nil && desiredActionsAndConditions.desiredConditions != nil {
sdkObj.Conditions = desiredActionsAndConditions.desiredConditions
} else {
sdkObj.Conditions = buildSDKRuleConditions(lrSpec.Conditions)
}
sdkObj.Actions = actions
sdkObj.Conditions = buildSDKRuleConditions(lrSpec.Conditions)
return sdkObj, nil
}

Expand All @@ -187,6 +217,21 @@ func buildSDKModifyListenerRuleInput(_ elbv2model.ListenerRuleSpec, desiredActio
return sdkObj
}

func buildSDKSetRulePrioritiesInput(sdkLRs []ListenerRuleWithTags) *elbv2sdk.SetRulePrioritiesInput {
var rulePriorities []elbv2types.RulePriorityPair
for _, sdkLR := range sdkLRs {
p, _ := strconv.ParseInt(awssdk.ToString(sdkLR.ListenerRule.Priority), 10, 32)
rulePriorityPair := elbv2types.RulePriorityPair{
RuleArn: sdkLR.ListenerRule.RuleArn,
Priority: awssdk.Int32(int32(p)),
}
rulePriorities = append(rulePriorities, rulePriorityPair)
}
sdkObj := &elbv2sdk.SetRulePrioritiesInput{
RulePriorities: rulePriorities,
}
return sdkObj
}
func buildResListenerRuleStatus(sdkLR ListenerRuleWithTags) elbv2model.ListenerRuleStatus {
return elbv2model.ListenerRuleStatus{
RuleARN: awssdk.ToString(sdkLR.ListenerRule.RuleArn),
Expand Down
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