Maintaining Kubernetes Clusters

Contents:

• etcd backup and restore operations
  • etcd
  • etcdctl install
  • Backing up etcd
  • Restoring etcd with etctl
• Upgrading an existing Cluster
  • upgrade kubeadm-based Cluster
  • Upgrade Control Plane
  • Upgrade work node
  • Worker Node Maintenance
• Highly Available Clusters
  • Why High Availability?
  • HA Topology Options
  • Setting Up HA Cluster with kubeadm
  • External etcd Setup
  • Testing HA
  • Best Practices
  • Troubleshooting HA Issues
  • Additional Resources
• Cluster Cert Renew
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