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K3s is a lightweight, certified Kubernetes distribution packaged as a single binary, built for edge, IoT, and resource-constrained deployments.
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Professional IT Services reviewed all 15 volume-backed Deployments on its K3s cluster after a routine node upgrade caused a three-hour outage. Three now use Recreate, because the default rolling update can stall on a ReadWriteOnce volume.
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A dev.to walkthrough makes the case for k3s over upstream kubeadm on install speed and defaults, and rests it on an embedded SQLite datastore that it rates for 50 nodes and 5,000 pods.
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A guide rebuilding browser OIDC login off ingress-nginx keeps its Gateway and HTTPRoute objects intact and hands the 401-to-302 step to two Traefik middlewares. Swap the controller and that half gets rewritten.
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Password rotation and OS rollout across a Kairos fleet come down to one kubectl apply. The privileged half of the design lives in a systemd service on the host, and one of the two files it reads names the next OS image.
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The GitOps tooling worked, and seven services still went back to Docker Compose in a day, because the operator consumes every one of those images and cuts release tags for none of them.
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A k3s workload moved to Amazon EKS without an application code change, and the three things that had to be fixed were the control plane endpoint policy, the instance type AWS would allow, and the credential doing the work.
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The Jetson holds one model at a time, so every job has to pass a single admission gateway. That gateway had to run on a box already carrying DNS and 9.4 GiB of committed memory. Footprint settled the build-versus-adopt question before features came up.
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A dev.to teardown puts the failure threshold at five thousand rows and one extra pod. The item it flags hardest turns out not to be an ORM default at all.
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An ngrok post ports more than 100,000 lines of Kubernetes Go to TypeScript to demonstrate restart loops and dropped requests. The instructive case is the one a correct probe does not prevent.
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Hubs Community Edition's bundled scripts archive the Postgres dump and the Reticulum file store. Everything between a bare host and a serving room is a rebuild you perform by hand.
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A nine-hour Istio Ambient debugging session ended with an agent recommending its own retirement. The edits were fine. The verification step is where the loop ran out of hypotheses it could see.
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A four-core ARM box thrashed its page cache for hours while Kubernetes reported Running, ArgoCD reported Synced and Healthy, Helm exited zero and an admission policy passed.
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A four-core box nearly went down at a load average of 38.7. The ordering of the three load figures, plus two lines from /proc/pressure, dated the incident twenty hours before anyone opened a log.
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A homelab k3s build put embedded etcd on microSD cards and USB Ethernet. The reported latency numbers point at I/O contention, not the consensus timeouts the write-up blames.
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A CNCF blog account reports a self-upgrading K3s control plane on Kairos with etcd quorum intact. The instructive part is that both bugs were in the automation, not the OS.
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