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bug fix: try SG permission add prior to revoke #3952

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bug fix: try SG permission add prior to revoke #3952

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2 changes: 1 addition & 1 deletion pkg/networking/security_group_manager.go
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ func (opts *FetchSGInfoOptions) ApplyOptions(options ...FetchSGInfoOption) {

type FetchSGInfoOption func(opts *FetchSGInfoOptions)

// WithReloadIgnoringCache is a option that sets the ReloadIgnoringCache to true.
// WithReloadIgnoringCache is an option that sets the ReloadIgnoringCache to true.
func WithReloadIgnoringCache() FetchSGInfoOption {
return func(opts *FetchSGInfoOptions) {
opts.ReloadIgnoringCache = true
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41 changes: 32 additions & 9 deletions pkg/networking/security_group_reconciler.go
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Original file line number Diff line number Diff line change
Expand Up @@ -77,23 +77,24 @@ func (r *defaultSecurityGroupReconciler) ReconcileIngress(ctx context.Context, s
return err
}
sgInfo := sgInfoByID[sgID]
if err := r.reconcileIngressWithSGInfo(ctx, sgInfo, desiredPermissions, reconcileOpts); err != nil {

if err := r.reconcileIngressWithSGInfo(ctx, sgInfo, desiredPermissions, false, reconcileOpts); err != nil {
if !r.shouldRetryWithoutCache(err) {
return err
}
revokeFirst := r.shouldRemoveSGRulesFirst(err)
r.logger.Info("Retrying ReconcileIngress without using cache", "revokeFirst", revokeFirst)
sgInfoByID, err := r.sgManager.FetchSGInfosByID(ctx, []string{sgID}, WithReloadIgnoringCache())
if err != nil {
return err
}
sgInfo := sgInfoByID[sgID]
if err := r.reconcileIngressWithSGInfo(ctx, sgInfo, desiredPermissions, reconcileOpts); err != nil {
return err
}
return r.reconcileIngressWithSGInfo(ctx, sgInfo, desiredPermissions, revokeFirst, reconcileOpts)
}
return nil
}

func (r *defaultSecurityGroupReconciler) reconcileIngressWithSGInfo(ctx context.Context, sgInfo SecurityGroupInfo, desiredPermissions []IPPermissionInfo, reconcileOpts SecurityGroupReconcileOptions) error {
func (r *defaultSecurityGroupReconciler) reconcileIngressWithSGInfo(ctx context.Context, sgInfo SecurityGroupInfo, desiredPermissions []IPPermissionInfo, revokeFirst bool, reconcileOpts SecurityGroupReconcileOptions) error {
extraPermissions := diffIPPermissionInfos(sgInfo.Ingress, desiredPermissions)
permissionsToRevoke := make([]IPPermissionInfo, 0, len(extraPermissions))
for _, permission := range extraPermissions {
Expand All @@ -102,24 +103,46 @@ func (r *defaultSecurityGroupReconciler) reconcileIngressWithSGInfo(ctx context.
}
}
permissionsToGrant := diffIPPermissionInfos(desiredPermissions, sgInfo.Ingress)
if len(permissionsToRevoke) > 0 && !reconcileOpts.AuthorizeOnly {
if err := r.sgManager.RevokeSGIngress(ctx, sgInfo.SecurityGroupID, permissionsToRevoke); err != nil {
return err

if revokeFirst {
if len(permissionsToRevoke) > 0 && !reconcileOpts.AuthorizeOnly {
if err := r.sgManager.RevokeSGIngress(ctx, sgInfo.SecurityGroupID, permissionsToRevoke); err != nil {
return err
}
}
}

if len(permissionsToGrant) > 0 {
if err := r.sgManager.AuthorizeSGIngress(ctx, sgInfo.SecurityGroupID, permissionsToGrant); err != nil {
return err
}
}

if !revokeFirst {
if len(permissionsToRevoke) > 0 && !reconcileOpts.AuthorizeOnly {
if err := r.sgManager.RevokeSGIngress(ctx, sgInfo.SecurityGroupID, permissionsToRevoke); err != nil {
return err
}
}
}

return nil
}

// shouldRetryWithoutCache tests whether we should retry SecurityGroup rules reconcile without cache.
func (r *defaultSecurityGroupReconciler) shouldRetryWithoutCache(err error) bool {
var apiErr smithy.APIError
if errors.As(err, &apiErr) {
return apiErr.ErrorCode() == "InvalidPermission.Duplicate" || apiErr.ErrorCode() == "InvalidPermission.NotFound"
return apiErr.ErrorCode() == "InvalidPermission.Duplicate" || apiErr.ErrorCode() == "InvalidPermission.NotFound" || apiErr.ErrorCode() == "RulesPerSecurityGroupLimitExceeded"
}
return false
}

// shouldRemoveSGRulesFirst tests whether we should retry SecurityGroup rules reconcile but revoking rules prior to adding new rules.
func (r *defaultSecurityGroupReconciler) shouldRemoveSGRulesFirst(err error) bool {
var apiErr smithy.APIError
if errors.As(err, &apiErr) {
return apiErr.ErrorCode() == "RulesPerSecurityGroupLimitExceeded"
}
return false
}
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