Under:
Pod is the smallest scheduling unit in K8S. There can be one or more pods on a Node, and each pod runs a container
Pod type:
- Autonomous Pod
- Pods managed by the controller
RC, RS: RS is recommended in the new version, which has more selector functions than RC
Deployment: Expanding and shrinking, rolling upgrade based on RS
HPA: Use resource monitoring information to dynamically allocate resources
StatefulSet: Stateful service
DaemonSet: suitable for daemon services
Job: tasks and timer tasks
Service: Service discovery
Network communication mode
In the new version of K8S, the IPVS solution has been used instead of the Iptables solution, which has higher performance
The role of ETCD in Flannel:
Network communication methods in different situations:
