(feat) Add workload identity support#636
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- Add `WorkloadIdentity` field to `SveltosClusterSpec` with provider-specific for AWS (IRSA/EKS Pod Identity), GCP (Workload Identity Federation), and Azure (Azure Workload Identity). - Add `lib/clusterproxy/workload_identity.go`: when `WorkloadIdentity` is set on a SveltosCluster, `GetSveltosKubernetesRestConfig` obtains short-lived credentials from the cloud provider instead of reading a kubeconfig Secret. Results are cached in-process with proactive refresh 5 minutes before expiry. - Add `EvictWorkloadIdentityCache(namespace, name string)` for components to call from their SveltosCluster delete handlers. - No behaviour change when `WorkloadIdentity` is not set.
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WorkloadIdentityfield toSveltosClusterSpecwith provider-specific for AWS (IRSA/EKS Pod Identity), GCP (Workload Identity Federation), and Azure (Azure Workload Identity).lib/clusterproxy/workload_identity.go: whenWorkloadIdentityis set on a SveltosCluster,GetSveltosKubernetesRestConfigobtains short-lived credentials from the cloud provider instead of reading a kubeconfig Secret. Results are cached in-process with proactive refresh 5 minutes before expiry.EvictWorkloadIdentityCache(namespace, name string)for components to call from their SveltosCluster delete handlers.WorkloadIdentityis not set.