Kubernetes lab env, created to test/bootstrap a kubernetes cluster in a homelab setting. Not the most elegant/clean ansible yaml/tf resource files but it works in my specific case 🙃
https://github.com/kelseyhightower/kubernetes-the-hard-way/ helped a lot with getting the right binaries and config files ❤️
This setup is based on my own homelab setup using openstack (Wallaby), but any other provider would do (OVH etc...) be sure to change the provider details for terraform.
- Create infra (vms for etcd cluster and kubernetes controller/nodes)
make init
make infra-all
- Create Initial CA/Cert and Inventory for playbooks
make inventory
make create-ca
- Create 3 node ETCD cluster
make etcd
- Create Controller(s)
make controller-full
- Create worker/minion nodes
make node-full
All should be set now 🤞
- Checking ETCD Cluster health
root@etcd-0:~# etcdctl endpoint health --endpoints=https://etcd-0:2379 --cacert=/etc/etcd/ca.crt --cert=/etc/etcd/etcd.crt --key=/etc/etcd/etcd.key
https://etcd-0:2379 is healthy: successfully committed proposal: took = 187.911999ms
- Checking kubernetes cluster health
root@node-0:~# kubectl cluster-info
Kubernetes control plane is running at https://controller-0:6443
To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
- Check if all nodes are added and in Ready state
root@node-0:~# kubectl get nodes
NAME STATUS ROLES AGE VERSION
node-0 Ready <none> 10m v1.21.0
node-1 Ready <none> 10m v1.21.0
- Install Cilium as CNI
make cni-cilium
- Check if cilium operator/agents are deployed correctly as Daemonset
root@controller-0:~# cilium status
/¯¯\
/¯¯\__/¯¯\ Cilium: OK
\__/¯¯\__/ Operator: OK
/¯¯\__/¯¯\ Hubble: disabled
\__/¯¯\__/ ClusterMesh: disabled
\__/
DaemonSet cilium Desired: 2, Ready: 2/2, Available: 2/2
Deployment cilium-operator Desired: 1, Ready: 1/1, Available: 1/1
Containers: cilium Running: 2
cilium-operator Running: 1
Cluster Pods: 0/0 managed by Cilium
Image versions cilium quay.io/cilium/cilium:v1.10.5: 2
cilium-operator quay.io/cilium/operator-generic:v1.10.5: 1
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