KVM virtualization Foundation

About virtualization What is virtualization In computer technology, Virtualization (Technology) or Virtualization (English: virtualization) is a kind of resource management technology, which abstracts and transforms various physical resources (CPU, memory, disk space, network adapter, etc.) of a computer and presents them for partition and co ...

Posted on Sun, 19 Jan 2020 18:42:53 -0800 by sneha1234

K8s Practice: lvs+keepalived Deploy k8s v1.16.4 High Availability Cluster

1. Deployment environment 1.1 Host List host name Centos Version ip docker version flannel version Keepalived version Host Configuration Remarks lvs-keepalived01 7.6.1810 172.27.34.28 / / v1.3.5 4C4G lvs-keepalived lvs-keepalived01 7.6.1810 172.27.34.29 / / v1.3.5 4C4G lvs-keepalived master01 7.6.1810 172.27.34.35 18.09.9 v0.11.0 / 4C ...

Posted on Sun, 19 Jan 2020 17:13:01 -0800 by Jeremy_North

[apue] started as a daemon, Unix Domain Socket failed to listen?

A short time ago, I wrote a small demo that passed file handle, including server side and client side, and communicated with each other through Unix Domain Socket. In the normal mode, the two sides can establish a normal connection. When the server is started as a daemon, the first start is successful, and then it is started again. The listen w ...

Posted on Fri, 17 Jan 2020 05:00:55 -0800 by mcog_esteban

Privileges and Ownership Management of Linux Files/Directories

1. Overview of the permissions and attribution of documents 1. Access rights Read r: Allow viewing of file contents, display directory list; Write w: Allow modification of file contents, allow creation, movement, deletion of files or subdirectories in the directory; Executable x: Allow programs to run, switch directories 2. Ownership ( ...

Posted on Thu, 16 Jan 2020 18:14:02 -0800 by Mel

ES2.3 cloud real record based on snapshot migration

Background: 1. According to the company's cloud plan, N sets of ES2.3 clusters in the current production environment need to be moved to the Alibaba cloud ES environment. However, due to the limited disk space in the production environment, the "source" is not enabled, so data migration cannot be performed through reindex. Here, you ...

Posted on Thu, 16 Jan 2020 09:04:05 -0800 by plouka

Jenkins + k8s Implement Enterprise CI/CD Landing

1. Overview 1.1. Introduction to the environment We're using AWS's EC2 to build our cluster and install it using kubeadm To install, if using binary installation, you can refer to my documentation. System version: ubuntu 16.04 k8s version: 1.17.1 docker version: 18.06-ce 1.2. Flowchart 1.3, Cluster Configuration Name To configure Intranet ...

Posted on Wed, 15 Jan 2020 10:18:02 -0800 by Avendium

Nginx installation, reverse agent implementation and deep optimization

Blog Outline: 1, Installation of Nginx;2, Nginx service implements reverse proxy;3, Nginx service optimization1, Installation of Nginx For the basic concept of Nginx, in the previous blog post: Detailed explanation of setting up Nginx server and its configuration file There is a detailed introduction, this blog will start directly from the i ...

Posted on Mon, 13 Jan 2020 20:46:50 -0800 by connex

Personal project sharing

Article directory 1: Preface (must see) 2: School project one: the realization of Huffman tree Project: Huffman coding and decoding method Scene construction content and requirements: C Code: 3: School project 2: small game of pushing boxes (1) Method list (2) Parameter list (3) Explanation and ...

Posted on Mon, 13 Jan 2020 08:18:17 -0800 by tjhilder

Experience. NET Core command line application - CommandLineUtils

Preface In our development, we may need to design one-time applications that can take advantage of the proximity to the original source code, but can be launched in a security context that is completely independent of the main Web application. The specific reasons are listed in [management process] ...

Posted on Mon, 13 Jan 2020 07:37:42 -0800 by Gmans

docker basic management

Docker core concepts 1. What is Docker? It's a lightweight "virtual machine"● open source tools for running applications in Linux containers 2. The difference between Docker and virtual machine Characteristic Docker container virtual machine Starting characteristics SEC level Minute class Calculation capacity loss Almost no ...

Posted on Sun, 12 Jan 2020 06:12:16 -0800 by crisward