Compiled from the “Development Tips” series, gathering practices around Git collaboration and development environment setup. 1. warning: LF will be replaced by CRLF Windows, Linux, and Mac are inconsistent in how they mark line endings in files. Windows uses CRLF as the terminator, while Linux and Mac use LF. Git

Compiled from the “Development Tips” series, collecting common problems and solutions in Python and Django development. 1. Sorting Python Iterables Iterable objects fall into 3 main categories: All sequence types, such as list, str, and tuple Some non-sequence types, such as dict and file Objects that contain an __iter__() or

Recently I was responsible for developing a backend-heavy application. The data flow in this application is complex, and the processing logic has piled up in a redundant mess. The project’s tech stack is Django + Vuejs. The frontend is bundled with Webpack, managed in modules, and mainly displays data. The backend involves many modules, many processing rules, and many data tables, so every time I had to modify an earlier feature I spent a lot of time reviewing the code.

1. Kubectl Basic Commands 1.1 Creating Objects 1 2 3 4 5 6 7 8 # Create resources; a remote URL also works kubectl create -f ./my.yaml # Create resources from multiple files kubectl create -f ./my1.yaml -f ./my2.yaml # Create resources using all manifest files in a directory kubectl create -f .

1. Basic Concepts 1.1 Kubernetes Kubernetes (K8s for short), the successor to Google’s Borg, is an open-source system for automatically deploying, scaling, and managing containerized applications. The features it provides: Automated deployment of containers Automated scaling up and down Automated application/service upgrades Grouping containers to serve traffic externally, with load balancing support Health checks for services, with automatic restarts 1.