Kubernetes 1.20.4 fast upgrade and capacity expansion of high availability cluster

After the Spring Festival in 2021, Kubernetes is new again. Kubernetes 1.20.4 has been officially released, and highly available clusters can also be upgraded directly (hub.docker.com has been stopped, and registry.cn-hangzhou.aliyuncs.com/google_containers is used). Fast upgrade (including domestic image quick download link) includes ...

Posted by adamjblakey on Wed, 13 Apr 2022 19:33:51 +0300

Pod container application "elegant publishing"

Reprinted in https://www.cnblogs.com/kevingrace/p/13970331.html k8S itself has the mechanism of graceful termination of Pod container, sends SIGTERM termination signal and completes the graceful termination of Pod within the specified terminationGracePeriodSeconds grace time. The default value of terminationGracePeriodSeconds is 30 seconds, whi ...

Posted by wemustdesign on Wed, 13 Apr 2022 05:15:50 +0300

Kubedm quickly builds k8s clusters (single master node)

Kubedm quickly builds k8s clusters (single master node) 1, Cluster pre deployment planning hostoperating systemIPdocker versionk8s versionk8s-master1Centos7.9192.168.15.13920.10.121.23.4-0k8s-node1Centos7.9192.168.8.13520.10.121.23.4-0k8s-node2Centos7.9192.168.8.13620.10.121.23.4-0 2, Main steps Node preparation (all nodes)Deployment contain ...

Posted by myanavrin on Tue, 12 Apr 2022 23:47:17 +0300

Kubernetes_pod status - policy - start - Multi container - type

k8s cluster with multiple msater s Creating high availability cluster with kubedm Why should there be at least three master s? A: data consistency and how to write at the same time. The data on each master is the same. raft protocol: consistency protocol paxos: used by MySQL group replication External etcd server - external etcd topology ...

Posted by GuitarGod on Tue, 12 Apr 2022 22:29:33 +0300

k8s access control

I kubernetes API access control More detailed (1) Authentication 1. There are 8 authentication methods. One or more authentication methods can be enabled. As long as one authentication method passes, other authentication methods will not be carried out. X509 Client Certs and Service Accout Tokens are usually enabled. 2.Kubernetes cluster has ...

Posted by Weiry on Mon, 11 Apr 2022 15:22:57 +0300

K8S notes - deploy k8s dashboard

1. Configure / etc/hostsDirect access to yaml download address will fail. Configure local host resolution.Choose one of the following four local parsers:185.199.108.133 raw.githubusercontent.com185.199.109.133 raw.githubusercontent.com185.199.110.133 raw.githubusercontent.com185.199.111.133 raw.githubusercontent.com2. Download yamlwget https:// ...

Posted by razz on Sun, 10 Apr 2022 19:29:20 +0300

Cluster resource management cpu and memory of k8s deployment -33-k8s

In the last article, after many tests of cpu and memory, I had an idea in my mind. Is there any relationship between cpu and memory? Under which circumstances is he the most stable service? When resources are preempted, which services will be kill ed first? With these doubts in my heart, I will continue to study. "Reliability" of ...

Posted by davey10101 on Sun, 10 Apr 2022 06:59:05 +0300

Terraform and Kubernetes experience

Background:Terraform has experienced the basic operation of CVM of Tencent cloud. The normal process needs to experience the integration of other basic components, such as database redis and other basic components, as well as the import of existing resources. Reasonable configuration of configuration files, etc Let's start with the experience o ...

Posted by phpion on Fri, 08 Apr 2022 10:33:48 +0300

Kilo tutorial

After writing so many nanny tutorials related to WireGuard, Kubernetes is finally involved today. Otherwise, how can you live up to the word "cloud native". If you are still a novice of WireGuard, be sure to read each article in the following order: WireGuard tutorial: how WireGuard works WireGuard quick installation tutorial ...

Posted by mikerh9 on Tue, 05 Apr 2022 13:49:06 +0300

Kind deploys Karmada multi cluster management

What is karma? Karmada is a cloud native project of CNCF. Its main capability is to manage multiple Kubernetes clusters and distribute the resource objects based on the native Kubernetes to multiple clusters. For some Deployment, Job and other workload with computing resource requirements, the specific copy number scheduling ability allows dif ...

Posted by bravo81 on Tue, 05 Apr 2022 10:49:44 +0300