Kubernetes Tutorial

Additional Concepts:

• Kubernetes Networking Guide for Beginners
  
• Kubernetes Networking
  
• Node affinity and Inter-pod affinity and anti-affinity
• PodDisruptionBudgets

Install a Kubernetes Cluster

• Using kube-router as Pod Network

kubeadm init  --pod-network-cidr 10.5.0.0/16
kubectl apply -f https://raw.githubusercontent.com/cloudnativelabs/kube-router/master/daemonset/kubeadm-kuberouter.yaml

• Kubernetes Command Line Bash Completion
• Install k8s Minikube on top of KVM on Debian 9
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• [Flannel as Pod Network seems not working] How To Install A Kubernetes Cluster On CentOS 7 with flannel as Pod Network and official

Troubleshooting

• Kubernetes Troubleshooting Walkthrough - Pending Pods (issues like not enough CPU, memory)
• Debugging DNS Resolution
  

PersistentVolume and PersistentVolumeClaim

• Configure a Pod to Use a PersistentVolume for Storage
• Troubleshooting: Change PV status from Released to Available: check stackoverflow

kubectl patch pv pv-name -p '{"spec":{"claimRef": null}}'

• Troubleshooting:  PV is stuck at terminating after PVC is deleted (This happens when persistent volume is protected.)

kubectl patch pvc PVC_NAME -p '{"metadata":{"finalizers": []}}' --type=merge

Using GlusterFS with Kubernetes

• Complete Example Using GlusterFS and Persistent Volume and Claim in OpenShift and Kubernetes using GlusterFS Volume Plugin
  
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StatefulSet

• StatefulSet Basics