Practical Implementation of an AWS-Based CI/CD Pipeline and Organizational Alignment

Without memorizing the 50 full sentences learned in the introductory course anew, you will expand your skills through training in speaking at length. Building on the ability to respond with a sentence reflexively, you will connect your thoughts for 30 seconds or more and ultimately develop the practical conversational ability to speak continuously about a single topic on your own for 3 minutes.

A reintroduction to high school mathematics that starts with nothing more than your memory of middle school math. The course is reorganized according to the causal relationships between concepts rather than the textbook order, so you first understand why each formula is needed. Designed to be completed in 24 weeks with 30 minutes a day, it helps working professionals and adult learners build a solid foundation in the mathematical concepts they encounter at work and in everyday life.

Learn practical techniques to start studying through structure rather than willpower. Master twelve execution design methods along with worksheets to lower the barrier to starting, recover broken focus, and prevent a single day's failure from turning into giving up.

An introductory course that makes the terminal less intimidating even for Linux beginners, teaching you how to view server logs, find files, and develop practical skills using just cd / ls / grep

This course is about redesigning the way you work—not just the tools you use. You’ll diagnose three sources of wasted time: delayed starts, rework, and overwork, then build a repeatable work system using templates, standards, and checklists. Through a principles-based approach applicable across roles, you’ll learn how to improve both the speed and quality of your work.

Learn step-by-step English expressions actually used in IT practice, from reading official documentation and writing tickets or emails to sharing incident reports and conducting technical interviews. Master practical English that you can apply immediately today with templates and examples extracted from over 20 years of infrastructure operations experience. Learn real-world business English for global collaboration, not just English for exams.

This is a hands-on course for systematically designing and building a multi-account environment based on AWS Organizations. It covers the entire landing zone implementation process, from designing the OU structure and Transit Gateway network architecture to the criteria for choosing between Control Tower and LZA, as well as strategies for incorporating existing accounts. Beyond simple console operations, you will develop the ability to make design decisions suited to your organization’s circumstances and establish an operational governance framework.

Connect the history from Gojoseon to the present day in a single thread through context rather than memorization. Learn how to read historical sources, understand the background of historical stories encountered in the news, dramas, and travel, and reinterpret history from the perspective of working people in this liberal arts course.

Clearly understand the four key differences between physical equipment–centric on-premises networks and AWS cloud networks, and first establish the overall coordinate system of AWS network architecture, from Region to AZ to VPC to Subnet. Although this lesson covers concepts only without hands-on practice, it also provides practical checklists and common mistakes to build a solid foundation for the rest of the 12-lesson course.

Analyze why your soccer skills have plateaued and learn how to overcome stagnation by understanding the principles of step-by-step growth. Through actionable routines—15-minute weekday training sessions, setting one goal per match, and writing a three-line post-match review—you can steadily improve your skills without additional time or expense.

Diagnose cost leakage in a Kubernetes cluster and learn the decision criteria and validation methods needed before introducing automation tools. Validate key cost-saving techniques such as Karpenter, Spot Instances, and Workload Optimization in read-only mode, then practice the entire process of safely applying them to production and rolling them back.

Identify the causes of weight-loss failure in environmental structures rather than willpower, and learn realistic weight-loss rates and goal-setting methods. Understand the mechanisms behind weight regain and learn a scientific approach to designing long-term success through sustainable environmental changes.

Learn how to calculate the 20 minutes that disappear each week on an annual basis, and identify not only exact repetitions but also similar and hidden ones. Use the rule of three and cost-benefit analysis to decide when to improve, and adopt a practical approach that stops at the level you need among four stages, from documentation to automation.

This is a practical calculation process that establishes criteria based on the fundamental theorem of polynomials, reconstructs multiplication formulas using area diagrams, and streamlines division through synthetic division. The focus is on developing accurate organization habits and self-checking skills rather than calculation speed. It minimizes boredom and emphasizes connections to subsequent units to maintain learning motivation.

Learn the core principles of writing prompts to get the desired results from AI. Increase the accuracy of your requests through template-based structuring, and master a repeatable prompt design process through step-by-step verification and Git storage. Compare good and bad examples directly to develop request-writing skills that can be applied immediately in real-world work.

Understand the interpretation step that exists between events and emotions, and identify your own patterns of cognitive distortion. Through exercises in naming and rating the intensity of emotions, along with three-column recording, learn practical skills for handling emotions without being overwhelmed by them.

From determining whether a medical consultation is necessary to measuring your resting heart rate and calculating your target heart rate zones, you will learn systematically. You will gain practical knowledge on how to recognize signs to stop training and identify indications of injury, enabling you to continue running safely.

Develop practical interpretation skills by accurately understanding the yin-yang concept underlying Four Pillars of Destiny from a relativistic perspective, from distinguishing the yin and yang attributes of the heavenly stems and earthly branches to assessing the yin-yang balance within a saju chart. This training corrects the common misconception that yang is good and yin is bad, and provides perspective-adjustment exercises for interpreting yin-yang imbalances as strengths and weaknesses.

Learn stress management methodologies proven in 20 years of infrastructure operations. Instead of abstract advice, learn concrete procedures for recovering your mental resilience amid incident response, deadlines, and organizational change using actionable tools and worksheets. Learn how to set and maintain a minimum baseline you can keep, rather than a perfect routine.

From installing the editor to initial Git configuration, you will personally build the entire development environment from start to finish. This is a practical, hands-on course where you will master terminal commands and folder structure principles, create your first project folder, and complete your first commit. In just one day, you will establish a stable development environment to be used throughout the entire 12-week program.

This course is designed to use only personal PCs and laptops. You can directly implement CI/CD automation processes by applying GitOps methodology in a k8s environment without using cost-incurring cloud environments like AWS or GCP.

This is a lecture that will help you develop the ability to see the essence by directly constructing the overall framework of the actual CI/CD work rather than just learning theoretical content.

This course covers CI (Continuous Integration) and CD (Continuous Deployment) pipelines, which are one of the four core elements (MSA, CI/CD, DevOps, Container) that make up cloud native applications. Through this course, you can understand and practice the processes needed to build and deploy your own automated pipeline in both local and cloud environments using Jenkins, a CI/CD tool.

Systematically learn Docker, a core tool for container-based application deployment, from the basics to practical application. Starting with Docker's basic structure and commands, you will develop practical skills that can be immediately applied to real-world tasks, including container packaging in microservices architecture environments, deployment automation, and standardization of production environments.

This course is designed to help you quickly learn server deployment methods using Nginx, Docker, and Spring Boot through hands-on practice. Learn Blue-Green deployment, a frequently used technique in the industry, faster than anyone else!

In an era of explosive data growth and crucial real-time processing, edge computing has established itself as an essential technology, no longer an option. This course is designed to systematically teach everything, from the core concepts of edge computing to deployment strategies for its application in real business environments. Through this course, students will firmly solidify the fundamental principles of edge computing and acquire practical knowledge and know-how applicable to real-world tasks and projects. Take the most certain first step towards becoming an edge computing expert, a core technology in the future IT environment!

Regardless of the field! This is a lecture that covers the core fundamentals that developers must know in practice in an easy + code-oriented way. I highly recommend this lecture to all junior developers and job seekers who want to grow.

What is DevSecOps? Configure a CI build environment and an environment that automatically performs SAST checks during build

Learn from the beginning how to set up a development environment that even an ordinary office worker can easily understand. It is practice-oriented and focuses on students learning various development tools such as Vim, VS Code, Git, Docker, and remote development. You can learn how to build an efficient development environment by learning step-by-step from the basic usage of each development tool to advanced functions.

This is not just a lecture for memorizing commands. It is a practical introductory course designed to help you intuitively understand the "flow" of technology—why containers emerged and the principles behind how Docker creates and runs images. Even those new to Docker will be able to explain for themselves "why containers are a necessary technology" after taking this course.

What is DevSecOps? Configure a CI build environment and an environment that automatically performs SAST checks during build

SonarQube | SonarCloud | SonarLint – DevOps + Security + QA (Most Widely Used Open-Source Tool) SonarQube is a leading open-source platform for continuous inspection of code quality. It performs automatic code reviews using static code analysis to detect bugs, code smells, security vulnerabilities, and maintainability issues across 27+ programming languages.This course is designed with a learn-by-doing approach, enabling you to gain deep, practical expertise in SonarQube and its ecosystem. Audience: This course is suitable for:Freshers, Developers, Project Managers, Architects, QA Engineers, Support Engineers, DevOps, DevSecOps, InfoSec, and Process Engineers who want to master code quality, security, and CI/CD best practices. Fundamentals & Concepts Introduction to SonarQube, SonarCloud, and SonarLint Purpose and benefits of static code analysis Understanding DevOps & DevSecOps use cases SonarQube architecture, editions, versions, and ecosystem Core SonarQube terminologies and metrics Maintainability, Reliability, and Security concepts Installation & Setup Installation and setup of SonarQube using Docker & Docker-Compose Installation and configuration of Jenkins Installation & configuration of Sonar Scanner Setup of build tools: Ant, Maven, Gradle NodeJS, Python Overview of SonarQube UI and navigation Hands-On Code Analysis Onboarding projects into SonarQube & CI pipelines Running code analysis for multiple programming languages Publishing and interpreting analysis results Reporting code coverage, unit and integration test results Understanding and analyzing: Bugs Vulnerabilities Code Smells Technical Debt Complexity Duplicated lines, files, and blocks SonarLint & IDE Integration Installing SonarLint in: Eclipse IntelliJ IDEA VS Code Configuring SonarLint Connected Mode Real-time code analysis and issue detection in IDEs Quality Management Quality Gates and Quality Profiles Creating and managing custom rules & rule templates Enforcing quality standards across teams Failing builds based on Quality Gate conditions Handling and fixing identified issues Administration & Configuration Project administration User, group, permission, and token management Plugin installation and management Security configuration of SonarQube SMTP configuration and email notifications Branding SonarQube UI with company logo SonarQube Marketplace & system details Security & SAST SAST (Static Application Security Testing) fundamentals Security vulnerability analysis SAST integration with CI/CD pipelines CI/CD & DevOps Integrations Integration with Jenkins (Jobs & Pipelines) Integration with GitHub & GitHub Actions Integration with GitLab & GitLab CI/CD Automating quality checks in CI/CD workflows Failing CI/CD pipelines based on SonarQube Quality Gates Advanced Topics Using the SonarQube Web API for automation, monitoring, and data extraction Best practices for enterprise-grade SonarQube deployments By the End of This Course, You Will Be Able To: Define and manage Quality Gates, Quality Profiles, and Rules Analyze code locally using SonarLint Perform secure and scalable static code analysis Integrate SonarQube with GitHub, GitLab, and Jenkins Enforce code quality and security standards across CI/CD pipelines Confidently administer and customize a SonarQube instance

This is a DevOps course based on practical experience in Silicon Valley. It goes beyond theory to cover content that can be applied immediately in the field. You will learn how to develop using Generative AI (Vibe Coding), set up CI/CD tools in a Kubernetes environment, and implement strategies to keep operating costs at $0. We will cover configuring a production environment without additional costs by running DB, Redis, S3, and batch jobs inside Kubernetes, and you will master building automated pipelines using GitHub Webhooks and Jenkins through hands-on projects.