fix: certificate renewal

[claudiolor]

Description

This patch changes the certificate renewal flow as the previous one was broken.

• ResourceSlices: it makes the local ResourceSlice controller manager the renew: when the certificate reaches 2/3 of lifetime, it changes the CSR so that the CR replicator can propagate the change on the remote cluster and make the remoteresourceslice controller handle the renewal.
• Tenant: in this case we have a different issue, as the CR replicator does not handle the Tenant resource, we make the localrenewer controller (which does not handle resource slices anymore) generate a Renew resource, propagated on the remote cluster, where the remote renewer makes sure to write the CSR into the Tenant resource and let handle the Tenant controller the renewal. Once the certificate is renewed, the new certificate written in the Renew resource status and then in the Identity by the localrenewer controller.

[adamjensenbot]

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[adamjensenbot]

The generated artifacts appear to be out-of-date.

Please, ensure you are using the correct version of the generators (eg. controller-gen) and re-run:

make generate

Here it is an excerpt of the diff:

diff --git a/pkg/liqo-controller-manager/authentication/remoterenwer-controller/remoterenewer_controller.go b/pkg/liqo-controller-manager/authentication/remoterenwer-controller/remoterenewer_controller.go%0Aindex 71173f3..1c22784 100644%0A--- a/pkg/liqo-controller-manager/authentication/remoterenwer-controller/remoterenewer_controller.go%0A+++ b/pkg/liqo-controller-manager/authentication/remoterenwer-controller/remoterenewer_controller.go%0A@@ -33,8 +33,8 @@ import (%0A 	authv1beta1 "github.com/liqotech/liqo/apis/authentication/v1beta1"%0A 	"github.com/liqotech/liqo/internal/crdReplicator/reflection"%0A 	"github.com/liqotech/liqo/pkg/consts"%0A-	tenantnamespace "github.com/liqotech/liqo/pkg/tenantNamespace"%0A 	"github.com/liqotech/liqo/pkg/liqo-controller-manager/authentication/utils"%0A+	tenantnamespace "github.com/liqotech/liqo/pkg/tenantNamespace"%0A 	"github.com/liqotech/liqo/pkg/utils/events"%0A 	"github.com/liqotech/liqo/pkg/utils/getters"%0A )

[claudiolor]

/build