Developing Docker Apps: Core Principles
Docker provides the de facto standard developer experience for containerized applications. This course will teach you the core principles for developing containerized applications with Docker, focusing on recognized best practices.
What you'll learn
Establishing a productive environment for developing containerized applications can be tricky. In this course, Developing Docker Apps: Core Principles, you'll learn the techniques that are necessary to be successful in developing with Docker. First, you'll discover how to develop inside containers to speed up your development workflow. Next, you'll explore some best practices for making your containers lean and more secure. Finally, you'll learn how to debug your applications when they're running in a container. When you’re finished with this course, you’ll have the skills and knowledge to confidently develop software applications using a container-oriented workflow.
Table of contents
- Module Outline 2m
- Understanding the Relationship between Image Layers and Image Size 5m
- Taking Steps to Minimize Image Content 4m
- Structuring a Dockerfile for Build Efficiency 7m
- Optimizing Image Size with Multi-stage Builds 3m
- Demo: Creating an Optimal Image Build for an Application 9m
- Module Summary 2m
- Module Outline 2m
- Using Configuration in the Environment 3m
- Defining Environment Variables in Dockerfiles 3m
- Differentiating between ENV and ARG Instructions 4m
- Demo: Consuming Configuration from within a Container 9m
- Supplying Environment Variables on the Command Line 3m
- Demo: Setting Configuration at Runtime 2m
- Module Summary 1m
About the author
Nigel is an IT professional with over 25 years of experience, gained in technical and management roles. He started his career in IT Operations, before co-founding and leading a company focused on delivering systems management solutions to some of the UK's largest companies. Recently, he has returned to his technical roots, and swapped the world of proprietary software for the open source domain. Nigel has an avid interest in the contemporary domain of microservices and container technologies. In... more