fix api

cmd/kubeadm/app/apis/output/types.go

@@ -88,11 +88,11 @@ type Certificate struct {
 	// Name of the certificate.
 	Name string
 
-	// ExpirationDate defines certificate expiration date.
+	// ExpirationDate defines certificate expiration date in UTC following the RFC3339 format.
 	ExpirationDate metav1.Time
 
-	// ResidualTime represents the residual time before expiration.
-	ResidualTime metav1.Duration
+	// ResidualTimeSeconds represents the duration in seconds relative to the residual time before expiration.
+	ResidualTimeSeconds int64
 
 	// ExternallyManaged defines if the certificate is externally managed.
 	ExternallyManaged bool

cmd/kubeadm/app/apis/output/v1alpha3/types.go

@@ -88,11 +88,11 @@ type Certificate struct {
 	// Name of the certificate.
 	Name string `json:"name"`
 
-	// ExpirationDate defines certificate expiration date.
+	// ExpirationDate defines certificate expiration date in UTC following the RFC3339 format.
 	ExpirationDate metav1.Time `json:"expirationDate"`
 
-	// ResidualTime represents the residual time before expiration.
-	ResidualTime metav1.Duration `json:"residualTime"`
+	// ResidualTimeSeconds represents the duration in seconds relative to the residual time before expiration.
+	ResidualTimeSeconds int64 `json:"residualTime"`
 
 	// ExternallyManaged defines if the certificate is externally managed.
 	ExternallyManaged bool `json:"externallyManaged"`

cmd/kubeadm/app/apis/output/v1alpha3/zz_generated.conversion.go

@@ -132,7 +132,7 @@ func Convert_output_BootstrapToken_To_v1alpha3_BootstrapToken(in *output.Bootstr
 func autoConvert_v1alpha3_Certificate_To_output_Certificate(in *Certificate, out *output.Certificate, s conversion.Scope) error {
 	out.Name = in.Name
 	out.ExpirationDate = in.ExpirationDate
-	out.ResidualTime = in.ResidualTime
+	out.ResidualTimeSeconds = in.ResidualTimeSeconds
 	out.ExternallyManaged = in.ExternallyManaged
 	out.CAName = in.CAName
 	out.Missing = in.Missing
@@ -147,7 +147,7 @@ func Convert_v1alpha3_Certificate_To_output_Certificate(in *Certificate, out *ou
 func autoConvert_output_Certificate_To_v1alpha3_Certificate(in *output.Certificate, out *Certificate, s conversion.Scope) error {
 	out.Name = in.Name
 	out.ExpirationDate = in.ExpirationDate
-	out.ResidualTime = in.ResidualTime
+	out.ResidualTimeSeconds = in.ResidualTimeSeconds
 	out.ExternallyManaged = in.ExternallyManaged
 	out.CAName = in.CAName
 	out.Missing = in.Missing

cmd/kubeadm/app/apis/output/v1alpha3/zz_generated.deepcopy.go

@@ -55,7 +55,6 @@ func (in *BootstrapToken) DeepCopyObject() runtime.Object {
 func (in *Certificate) DeepCopyInto(out *Certificate) {
 	*out = *in
 	in.ExpirationDate.DeepCopyInto(&out.ExpirationDate)
-	out.ResidualTime = in.ResidualTime
 	return
 }
 

cmd/kubeadm/app/apis/output/zz_generated.deepcopy.go

@@ -55,7 +55,6 @@ func (in *BootstrapToken) DeepCopyObject() runtime.Object {
 func (in *Certificate) DeepCopyInto(out *Certificate) {
 	*out = *in
 	in.ExpirationDate.DeepCopyInto(&out.ExpirationDate)
-	out.ResidualTime = in.ResidualTime
 	return
 }
 

cmd/kubeadm/app/cmd/certs.go

@@ -20,6 +20,7 @@ import (
 	"fmt"
 	"io"
 	"text/tabwriter"
+	"time"
 
 	"github.com/lithammer/dedent"
 	"github.com/pkg/errors"
@@ -379,11 +380,11 @@ func fetchCertificateExpirationInfo(rm *renewal.Manager) (*outputapiv1alpha3.Cer
 				return nil, err
 			}
 			info.Certificates = append(info.Certificates, outputapiv1alpha3.Certificate{
-				Name:              e.Name,
-				ExpirationDate:    metav1.Time{Time: e.ExpirationDate},
-				ResidualTime:      metav1.Duration{Duration: e.ResidualTime()},
-				CAName:            handler.CAName,
-				ExternallyManaged: e.ExternallyManaged,
+				Name:                e.Name,
+				ExpirationDate:      metav1.Time{Time: e.ExpirationDate},
+				ResidualTimeSeconds: int64(e.ResidualTime() / time.Second),
+				CAName:              handler.CAName,
+				ExternallyManaged:   e.ExternallyManaged,
 			})
 		} else {
 			// the certificate does not exist (for any reason)
@@ -401,10 +402,10 @@ func fetchCertificateExpirationInfo(rm *renewal.Manager) (*outputapiv1alpha3.Cer
 				return nil, err
 			}
 			info.CertificateAuthorities = append(info.CertificateAuthorities, outputapiv1alpha3.Certificate{
-				Name:              e.Name,
-				ExpirationDate:    metav1.Time{Time: e.ExpirationDate},
-				ResidualTime:      metav1.Duration{Duration: e.ResidualTime()},
-				ExternallyManaged: e.ExternallyManaged,
+				Name:                e.Name,
+				ExpirationDate:      metav1.Time{Time: e.ExpirationDate},
+				ResidualTimeSeconds: int64(e.ResidualTime() / time.Second),
+				ExternallyManaged:   e.ExternallyManaged,
 			})
 		} else {
 			// the CA does not exist (for any reason)
@@ -515,7 +516,7 @@ func (p *certTextPrinter) PrintObj(obj runtime.Object, writer io.Writer) error {
 		s := fmt.Sprintf("%s\t%s\t%s\t%s\t%-8v",
 			cert.Name,
 			cert.ExpirationDate.Format("Jan 02, 2006 15:04 MST"),
-			duration.ShortHumanDuration(cert.ResidualTime.Duration),
+			duration.ShortHumanDuration(time.Duration(cert.ResidualTimeSeconds)*time.Second),
 			cert.CAName,
 			yesNo(cert.ExternallyManaged),
 		)
@@ -534,7 +535,7 @@ func (p *certTextPrinter) PrintObj(obj runtime.Object, writer io.Writer) error {
 		s := fmt.Sprintf("%s\t%s\t%s\t%-8v",
 			ca.Name,
 			ca.ExpirationDate.Format("Jan 02, 2006 15:04 MST"),
-			duration.ShortHumanDuration(ca.ResidualTime.Duration),
+			duration.ShortHumanDuration(time.Duration(ca.ResidualTimeSeconds)*time.Second),
 			yesNo(ca.ExternallyManaged),
 		)
 		fmt.Fprintln(tabw, s)