RKE2 vs K3s for Rancher Downstream Clusters
Choose RKE2 for general production clusters and K3s for edge or memory-constrained nodes; never mix distributions in one cluster.
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k3sDiagnosing RKE2 Kubelet Stalls During Rancher 2.7+ Cluster Upgrades
Step‑by‑step diagnostic guide for RKE2 cluster upgrades that stall at the "updating kubelet" phase in Rancher 2.7+, covering causes, checks, fixes, and when to escalate.
Choosing Between RKE2 and K3s for Rancher-Managed Production Clusters
A decision guide for choosing between RKE2 and K3s for Rancher-managed clusters, with a comparison table, trade-off analysis, and a concrete validation workflow.
Safely Upgrading Kubernetes Clusters at Scale with Rancher’s Built‑in Upgrade Workflow
Learn how Rancher’s built‑in upgrade workflow turns risky, manual Kubernetes version bumps into a controlled, auditable operation—complete with a step‑by‑step example, limitations, and verification steps.
kubernetesDecision Guide: Using Rancher Cluster Templates vs. Import or Ad‑hoc UI Clusters
Learn when to use Rancher Cluster Templates versus importing clusters or creating ad‑hoc UI clusters, see a compact trade‑off table, and follow a step‑by‑step example for provisioning an RKE2 cluster with validation.
K3s-only vs Mixed RKE2/K3s Strategy in Rancher for Edge-Constrained Deployments
Goal: Determine whether to standardize on K3s for all downstream clusters managed by Rancher or to adopt a mixed approach that runs RKE2 in core/regulated workloads and K3s at the edge, while respecting limited CPU and memory budgets on branch hardware. Constraints: K3s delivers a small footprint with a single binary and SQLite datastore, fitting tightly con
RKE1 cluster provisioning shift to Cluster API v2prov in Rancher 2.6+
Operators need to decide how to handle existing RKE1‑provisioned clusters as Rancher shifts its default provisioning path to the Cluster API‑based v2prov framework for RKE2 and K3s clusters. Since Rancher does not provide an in‑place upgrade from RKE1 to RKE2/K3s, the choice is between maintaining the legacy RKE1 path until it is officially deprecated or reb