Build leaner, faster, and more maintainable Docker images.
Building a Docker image is easy. Building one that is efficient, secure, maintainable, and optimized for production takes a deeper understanding of how Docker works.
In my LinkedIn Learning course, Docker: Build and Optimize Docker Images, I teach you how to improve the way you build and manage Docker images. You’ll learn how Docker image layers and the build cache work, why they affect build performance, and how to structure your Dockerfiles to take advantage of them.
You’ll explore practical Dockerfile best practices for choosing base images, organizing commands, improving security, and keeping your images maintainable. You’ll also learn how to use multi-stage builds to reduce image size by separating build dependencies from the final runtime image.
Finally, you’ll practice troubleshooting common image build problems so you can diagnose issues and create a more efficient Docker development workflow.
What You’ll Learn
- Understand Docker images and layers
- Build and organize custom Docker images
- Tag and label images effectively
- Understand and optimize Docker’s build cache
- Exclude unnecessary files from builds
- Apply Dockerfile best practices
- Choose appropriate base images
- Improve image security and efficiency
- Create multi-stage Docker builds
- Troubleshoot common image build errors
Whether you’re building Docker images for development, CI/CD pipelines, or production environments, this course will help you create images that are smaller, faster to build, and easier to maintain.