Building a Multi-Node Cluster with K3s Using ARM Devices
Talkat Kubernetes on Edge Day Europe 2022 · on Tuesday, 2022-05-17· at 16:10· Pavilion 4, Room C | Level 2 | Central Forum·
summary
Step-by-step build of a working three‑node K3s cluster on ARM using Raspberry Pi 3B/4B running Ubuntu, installed with one‑line K3s server and agent scripts, cluster token join, and Flannel/containerd as defaults; adds MetalLB configured for a specific IP range 192.168.0.240-250 to provide bare‑metal load balancers, and installs Longhorn (requires nfs‑common on all nodes for RWX); demo deploys nginx exposed on port 8000 via a MetalLB load balancer and verifies the service is reachable; hardware: two 4GB and one 8GB Pi with fast 32GB microSD cards.
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