Company
Date Published
Author
Contributor
Word count
665
Language
English
Hacker News points
None

Summary

Kubernetes deployments consist of three node types: master nodes, ETCD nodes, and worker nodes, each playing a crucial role in maintaining the system's functionality. In high availability (HA) setups, these nodes are replicated to ensure system resilience, although node failures still require prompt attention to restore cluster health and prevent cascading issues. The process of recovering from node failures involves replacing failed nodes, updating configurations, and ensuring proper connectivity and service status, particularly for ETCD and master nodes. If HA was not enabled, the failure of a single ETCD or master node can lead to a complete cluster shutdown, necessitating data recovery from backups or snapshots. For worker nodes, the system is designed to automatically reschedule workloads to other nodes, but failed nodes must still be replaced. Codefresh facilitates application deployment to Kubernetes clusters, supporting various cloud platforms and on-premises data centers.