Installation Environment Vmware Workstation pro It is recommended to use the snapshot to store the state of each installation stage to avoid installation failures and causing the installation to start from scratch. Ubuntu 22.04 windows 11 Hardware settings create 3 VM: 4 cores and 4G memory and 100G capacity Before installing K8s (All use the root user) set host: 192.168.47.135 master 192.168.47.131 node1 192.168.47.132 node2 set root ssh connection: sudo su - echo "PermitRootLogin yes" >> /etc/ssh/sshd_config systemctl restart sshd sudo passwd ssh-keygen for i in {master,node1,node2}; do ssh-copy-id root@$i; done set Ipvs and conf create conf file: for i in {master,node1,node2}; do ssh root@$i 'cat << EOF > /etc/modules-load.d/containerd.conf overlay br_netfilter EOF'; done execute conf: for i in {master,node1,node2}; do ssh root@$i 'modprobe overlay;modprobe br_netfilter;'; done create 99-kubernetes-cri.conf file: for i in {master,node1,
SOLID is the fundamental and core principle of OOP.
Single-Responsibility Principle
- High cohesion: A module preferably has only one business logic.
- Low coupling: The different modules work independently and are connected by simple protocols to minimize side effects.
Open-Closed Principle
- Open for extension: It is easy to extend new functions with existing code.
- Close for modification: Do not modify existing classes to ensure stable functions.
Liskov-Substitution Principle
A superclass should be replaceable with objects of its subclasses without breaking the application.
Interface-Segregation Principle
Clients only depend on the interfaces they need, don't use the "big" interface to contain everything.
Dependence-Inversion Principle
The program should depend upon abstractions, not concretions.
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