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PCP-2735: EKS cluster deletion stuck with error failed to delete OIDC provider #897

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merged 6 commits into from
Mar 27, 2024
Merged

PCP-2735: EKS cluster deletion stuck with error failed to delete OIDC provider #897

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5bb327d
eks oidc arn deletion error
AmitSahastra Mar 27, 2024
d4b897c
eks oidc arn deletion error
AmitSahastra Mar 27, 2024
ee24eb7
code refactor
AmitSahastra Mar 27, 2024
151b01e
code refactor
AmitSahastra Mar 27, 2024
0545224
code refactor
AmitSahastra Mar 27, 2024
7047c04
code refactor
AmitSahastra Mar 27, 2024
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22 changes: 19 additions & 3 deletions pkg/cloud/services/eks/oidc.go
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,13 @@ import (
"sigs.k8s.io/cluster-api/controllers/remote"
)

const (
// OIDCProviderARNAnnotation set/unset this annotation to managed control plane.
// This is required in case of force pivot control plane status do not have ARN in status.
// In that cases annotation will be used to delete oidc resource.
OIDCProviderARNAnnotation = "aws.spectrocloud.com/oidcProviderArn"
)

func (s *Service) reconcileOIDCProvider(cluster *eks.Cluster) error {
if !s.scope.ControlPlane.Spec.AssociateOIDCProvider {
return nil
Expand All @@ -56,7 +63,7 @@ func (s *Service) reconcileOIDCProvider(cluster *eks.Cluster) error {
if anno == nil {
anno = make(map[string]string)
}
anno["aws.spectrocloud.com/oidcProviderArn"] = oidcProvider
anno[OIDCProviderARNAnnotation] = oidcProvider
s.scope.ControlPlane.SetAnnotations(anno)
if err := s.scope.PatchObject(); err != nil {
return errors.Wrap(err, "failed to update control plane with OIDC provider ARN")
Expand Down Expand Up @@ -140,10 +147,15 @@ func (s *Service) reconcileTrustPolicy() error {
}

func (s *Service) deleteOIDCProvider() error {
anno := s.scope.ControlPlane.GetAnnotations()
arn := anno["aws.spectrocloud.com/oidcProviderArn"]

// In case of force pivot managed control plane do not have ARN in status, that lead to oidcProvider not getting cleaned up during delete.
// OIDCProviderARNAnnotation will be used to avoid it.

annotations := s.scope.ControlPlane.GetAnnotations()
arn := annotations[OIDCProviderARNAnnotation]

if arn == "" {
// Upgrade support for cluster without OIDCProviderARNAnnotation set
arn = s.scope.ControlPlane.Status.OIDCProvider.ARN
}

Expand All @@ -161,6 +173,10 @@ func (s *Service) deleteOIDCProvider() error {
return errors.Wrap(err, "failed to update control plane with OIDC provider ARN")
}

// Remove OIDCProviderARNAnnotation after successfully deleting oidc provider
annotations[OIDCProviderARNAnnotation] = ""
s.scope.ControlPlane.SetAnnotations(annotations)

return nil
}

Expand Down