Operations
Etcd and Etcdctl in Practice
· β˜• 5 min read
1. Basic Introduction to Etcd Etcd is a distributed Key/Value storage system. Through distributed locks, leader election, and write barriers it achieves distributed coordination, offering highly available, persistent data storage and retrieval services. How it works Every Etcd node stores a complete copy of the data, and at any moment

Stress Test: Dynamically Creating Jenkins Agents on Kubernetes
· β˜• 11 min read
In the previous document, we took advantage of the elasticity Kubernetes provides to dynamically create Jenkins Slaves on Kubernetes. This document is mainly a stress test of Jenkins under large-scale builds. 1. Cluster Configuration 1.1 Kubernetes Version The version used here is v1.16.7 1 2 3 4 kubectl version Client Version: version.

Multi-Arch Docker Images
· β˜• 4 min read
1. Enabling Docker’s experimental Feature First, enable Docker’s experimental feature, so the commands below are available. Edit vim ~/.docker/config.json and add the following: 1 2 3 4 { "experimental": "enabled", "debug": true } Note that this is not the /etc/docker/daemon.json file, and Docker does not need to be restarted. 2. Docker Images Starting with Docker 1.

R&D Is Like Training Troops, Operations Is Like Deploying Them
· β˜• 4 min read
1. Thought Drives Behavior Thought drives behavior, and behavior produces results. How we treat people, handle things, and approach affairs all come from culture, and they do not leap forward just because technology advances rapidly. The Chinese nation, with its long history, has accumulated remarkably resilient intellectual wisdom. Dynasties rose and fell, regimes changed, and none of it could bring her down.

Adding a Windows Node to Kubernetes
· β˜• 7 min read
Here a Windows node is used mainly as a Worker, while the Master control plane stays on Linux. 1. System Configuration 1.1 Kubernetes Control Plane Since version 1.14, Kubernetes has added production-grade support for Windows nodes. Because Microsoft’s official documentation mainly covers installing the flannel network plugin, it is recommended here that Kubernetes also use the flannel plugin.