Docker

Why even consider templating Dockerfiles? Dockerfiles revolutionized the industry with their simplicity. Each instruction creates a new layer in the image, which is automatically cached. This process integrates well with SCM, where you “commit” the results of one stage and move forward with other changes. The process can be easily parameterized with ARG instructions, similar to ENV but provided during the build. This allows for creating highly flexible builds. For most users, this is more than sufficient. However, there’s a notable exception: Docker base images. ...

Discover the current age and update status of various official Docker images, including CentOS, Ubuntu, and Debian, in the 2024 edition of this analysis.

Learn best practices for writing Dockerfiles by following the Filesystem Hierarchy Standard (FHS) to enhance organization and maintainability of your Docker images.

Learn how to automate Docker image updates using Renovate Bot, a versatile tool that supports various package managers and custom dependency links.

Learn the best practices for patching and deprecating Docker images to maintain security and stability in your DevOps workflows.

Learn how to run x86-64 Docker images on Apple’s MacBook with M1/M2/M3 CPUs by setting the DOCKER_DEFAULT_PLATFORM environment variable.

Learn how to check the compressed size of Docker images to optimize download and startup times, using a simple bash function for accurate measurements.

Learn the best way to get NVM (Node Version Manager) working in CI/CD systems, ensuring seamless Node.js version management in your DevOps workflows.

Learn how to change the configuration of the Docker daemon in Rancher Desktop on MacOS, enabling experimental features and BuildKit for enhanced functionality.

Learn best practices for writing Dockerfiles by using VOLUME for all mutable, temporary file locations to enhance performance and maintain cleaner images.