Docker Crash Course #6 - dockerignore

Description: In this video, you will learn about the .dockerignore file, which is a text file that specifies the files and directories that should be excluded from a Docker image. This can help to reduce the size of your images and improve the performance of your containers. What is a .dockerignore file? A .dockerignore file is a text file that contains patterns that match files and directories that should be excluded from a Docker image. The patterns are similar to the patterns that you can use in the .gitignore file to exclude files from a Git repository. Why should I use a .dockerignore file? There are several reasons why you should use a .dockerignore file: Reduce image size: By excluding files that are not needed in your image, you can reduce the size of your image. This can make your images easier to store and transfer, and it can also improve the performance of your containers. Improve build speed: When Docker builds an image, it includes all of the files that are present in the source directory. This can take a long time for large projects, especially if there are many files that are not needed in the image. By using a .dockerignore file, you can tell Docker to skip copying these files, which can significantly improve the build speed. Enhance image security: By excluding sensitive files such as configuration files and passwords, you can help to protect your containers from unauthorized access.