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Bare Metal Kubernetes Running your own cloud

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Hardware?

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NUCs Commodity Server

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Hyper Converged • CPU Cores • Large Memory • HDD Space • SSDs • 2 Gigabit Ports

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Provisionierung?

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Ubuntu Server

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Basissystem

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Kubespray

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Management Plane Worker Nodes

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Management Plane •etcd •Kubernetes: API Server, Controller Manager, Scheduler, Calico, DNS, Dashboard, Proxy, … •Nginx Ingress

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Worker Nodes •Kubelet •Custom Workload

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Cluster ✅

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Persistente Volumes?

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Ceph RBD

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Ceph Ansible +

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MONs, MGRs OSDs

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RBD Pools / Storage Classes •HDD → large •SSD → fast + RBD Provisioner =

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Learnings?

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• Ansible and „bare metal“ deployment for critical services • Provide enough nodes and hardware for management plane