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1. K8S CRD is concise and easy to use: Introduction to CustomResourceDefinition: Everything in Kubernetes can be regarded as resources. After Kubernetes 1.7, the secondary development capability of CRD custom resources is added to extend Kubernetes API. Through CRD, we can add new resource types to Kubernetes API without modifying Kubernetes s ...

Experimental requirements: Kubernetes was successfully deployed to prepare for subsequent experiments 1. Environmental requirements Server requirements: • recommended minimum hardware configuration: 2-core CPU, 2G memory, 20G hard disk • it is better for the server to access the external network. There will be a need to pull the ima ...

Introduction:   This article mainly introduces how to use private image to arrange containers in Kubernetes cluster. For image download, domain name resolution and time synchronization, please click   Alibaba open source mirror station Operation method Kubernetes clusters support the orchestration of containers using private ima ...

This article was first published in https://robberphex.com/error-reporting-with-kubernetes-events/A Kubernetes Webhook is maintained in the group, which can intercept the creation request of pod and make some modifications (such as adding environment variables, adding init container, etc.).The business logic itself is very simple, but if there ...

1, Basic description This blog post will demonstrate CentOS 7 binary installation of highly available k8s 1.17.x. compared with other versions, the binary installation method is not much different. 2, Basic environment configuration 2.1 host information OS role && hostname memory CPU Role Centos 7.6 k8s-master01 8G 4 core 192.16 ...

KUBEADM Build Cluster (2) 1. Build a cluster environment with kubeadm 1.1 Architecture In the last lesson, we explained the basic concept of k8s and several main components. After we understand the basic concept of k8s, we can actually use it officially. But the previous lessons are all demonstrations on katacoda, which only give us about 15 mi ...

Background: Network environment reference: Cloud networking experience Two vpc networks in Shanghai and Beijing. The servers are distributed as follows: Let's talk about why we use TencentOS Server 3.1 (TK4) system. It's not because CentOS 8 doesn't provide long-term maintenance... By the way, experience Tencent cloud's open source tencentos. ...

Nginx-ingress-controller-0.32.0 Deployment Guide Introduction: nginx is the entrance controller of Kubernetes. Nginx is used as the reverse agent and load balancer, while nginx ingress controller is the control software of nginx. It is built around Kubernetes entrance resources and uses ConfigMap to store nginx configuration k8s cluster const ...

Users Accounts Authenticationkubeconfig configuration fileAs mentioned earlier, communication between K8S is achieved through https, which requires authentication every time, such as when we enter a command from the command line[root@k8s-master ~]# kubectl get podRequires https authentication, and https is stateless link means that certificates ...

1. Introduction of PV and PVC Volume provides a very good data persistence scheme, but there are still deficiencies in manageability. Take the previous example of AWS EBS. To use Volume, Pod must know the following information in advance: The current Volume is from AWS EBS. The EBS Volume has been created in advance and the exact volume ID ...