Learn Kubernetes in 1 Hour - K8s新手速通 - 进阶笔记敬请期待

Learn Kubernetes in 1 Hour

Welcome to learn k8s with me!!! [Kubernetes Crash Course for Absolute Beginners NEW] - YouTube

1. Kubernetes Architecture

  • control node - several important processes

  • worker nodes

master nodes are much more important than worker nodes

2. Main Kubernetes Components

2.1 Node & Pod

Node: a virtual or physical machine

IP adjust every time the pod restart,so -> service

2.2 Service &Ingress

Ingress: cause the node-ip is not very practical.

2.3 ConfigMap & Secret

change name: mogo-db-service -> mogo-db

! ConfigMap is for non-confidential data only! ->Secret

2.4 Volume

2.5 Deployment & StatefulSet

my-app died -> replicates everything!

Define blueprint for Pods: specify how many replicas you want to have

work with deployments instead of pods.

! DB can't be replicated via Deployment!

DB has state -> data inconsistence - > StatefulSet

however, deploying StatefulSet not easy -> common practice: DB hosted outside of k8s cluster.

3. Kubernetes Configuration

talk to API server

C-M

each configuration file has 3 parts

4. Minikube & Kubeetcl - Setup k8s cluster locally

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