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The following configurations take the following table environment as an example rolehost nameIP addressGroup nameCPUControl master nodeansiblecontrol192.168.242.10---2CManaged nodeweb1192.168.242.11webservers2CManaged nodeweb2192.168.242.12webservers2C Ansible installation Installation premise Requirements for management host At ...

1 k8s workload controller What is the workload controller? Workload Controllers is an abstract concept of K8s, which is used for higher-level objects, deployment and management of Pod. Workloads are applications running on kubernetes. Whether your load is a single component or multiple components working together, you can run it in a set o ...

Taints exist on node and tolerances exist on pod. Stain (Taint) Composition of taint Using the kubectl taint command, you can set a stain on a Node. After the Node is set with a stain, there is a mutually exclusive relationship between the Node and the Pod. You can make the Node refuse the scheduling execution of the Pod, and even expel th ...

Background: One OA system of the company is a stand-alone server. Due to disk failure, some OA accessories are lost. In order to avoid this problem, it is planned to realize the file spare parts function through rsync+inotify software and back up the accessories to other servers; 1, Environment introduction Source side (server that needs to sy ...

1. Preparation 1) Use the client tool (secureCRT or xshell) to connect to the linux server. It is recommended to open multiple servers at the same time and send the same command to multiple servers at the same time. 2. Production key file 2) Edit the hosts file on each server: vi / etc/hosts 3) Add the following contents to the document (th ...

This article has reached 16000 words, a little more, but more complete 1, Jenkinx+Gitlab continuous integration environment overview (1) What is CI/CD CI is continuous integration, and CD is continuous delivery and continuous deployment. Generally, CD is continuous delivery CI/CD overview: Continuous integration (CI): continuous ...

Filter: manage all web resources for the web server, mainly preprocess some user requests, and then preprocess them after the server responds and return them to the user, such as jsp, static pictures, etc. purpose: 1. Implement URL level access control, 2. Filter sensitive words, 3. Hide some information with *. Interceptor: basically, it is ...

1, Cluster and distributed 1. Cluster 1.1 meaning of cluster Cluster, cluster It is composed of multiple hosts, but only as a whole Question: In Internet applications, as the site has higher and higher requirements for hardware performance, response speed, service stability and data reliability, a single server is unable to meet its n ...

Summarize the video of up main IT brother from b station summary Common load balancing algorithms include random, weighted random, polling, weighted polling, smooth weighted polling and consistent hash algorithm Server IP public class ServerIps { public static final List<String> LIST = Arrays.asList( "A", ...

preface Linux is a Unix like operating system that is free to use and spread. It is a multi-user, multi task, multi thread and multi CPU operating system based on POSIX and Unix. With the development of the Internet, Linux has been supported by software enthusiasts, organizations and companies all over the world. In addition to maintaini ...