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Setup GitHub Runner on K8S.
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Setup GitHub Runner on K8S.

In this post, i will guide you to install self-hosted github action runner, then setup a simple workflow to run some command on that runner. To setup github action  self-hosted runner, we will use act
COPPER Nguyen
Sync Secret from Vault to K8S using External Secrets Operator
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Sync Secret from Vault to K8S using External Secrets Operator

When doing work on many micro services, i have to find a way to manage environment variable for them, previously i used AWS Secret Manager but when working on multiple environment with many account, t
COPPER Nguyen
互換性、下位互換性、前方互換性とは?
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互換性、下位互換性、前方互換性とは?

1.互換性互換性 (Compatible) とは、2 つのシステムが変更を必要とせず連携することができる機能のことです。 互換性のあるソフトウェア アプリケーションは、同じデータ形式を使用します。 たとえば、ワープロ アプリケーションに互換性がある場合、ユーザーはドキュメント ファイルをどちらの製品でも開くことができます。 また同時に、互換性とは製品が特定の規格の仕様の一部またはすべてを満たして
Mary
Mary
New major features in Vue 3
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New major features in Vue 3

Vue 3.0.0 was officially released as a major release. It introduced many new features such as: Composition APITeleportFragmentsComponent Option EmissioncreateRenderer API from @vue/runtime-coreSFC Com
Tinker
Introduction to Azure IoT for Beginners
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Introduction to Azure IoT for Beginners

1. What is IoT?The Internet of Things (IoT) is a network of physical devices that connect to and exchange data with other devices and services over the Internet or other network. There are currently o
Lionel
UI Design 102 - Principles - 01 Grid & Layout
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UI Design 102 - Principles - 01 Grid & Layout

Hi, I'm glad you're here; you must have seen my first post The Basic Design, right? In this section, we will talk about Grid and Layout. Grid is one of the most essential principles in interface desi
KAN
Flask for beginner
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Flask for beginner

Flask? Flask is a web framework. It is a Python module that help you develop web applications easily. It is having a small and easy-to-extend core: it's a micro-framework that doesn’t include an ORM
Kaitou
Kaitou
Get a free TLS certificate with acme.sh
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Get a free TLS certificate with acme.sh

When i'm using Azure Cloud, they do not provide a free certificate that can be used with their service unlike AWS, so we need to find a way to get a free TLS certificate.Luckily when i go around the i
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Self-managed K8S cluster for development environment using AWS EC2
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Self-managed K8S cluster for development environment using AWS EC2

Use Amazon Elastic Kubernetes Service for development environment is not a good choice if the customer or we have not enough money. The workload for development environment is usually small so we can
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Create a Kafka cluster for development with Docker Compose
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Create a Kafka cluster for development with Docker Compose

This article assume that you have basic knowledge about Kafka, and Docker Compose. For development environment, there is no strict requirement about high availability and durability, we will try to ma
COPPER Nguyen