How to speed up the creation of Docker images when using “docker build -t”?
There are several ways to address the issue of slow Docker image building.
- –use cache from
docker build -t myimage --cache-from myimage:latest .
- To specify a faster mirror source: You can speed up the process of fetching images by changing Docker configuration file to use a mirror source located in China.
- Reduce the size of the image: During the building process, the image size can be reduced by using techniques such as using multiple RUN statements instead of one, excluding unnecessary files and directories from the build context, and more.
- Parallel building: By using multiple build agents or build servers, multiple images can be built simultaneously to speed up the build process.
- Utilize build tools such as BuildKit or img to accelerate the image building process.
- Consider using pre-built base images: Using pre-built base images instead of building images from scratch can significantly reduce build time.
By using the above methods, the speed of building Docker images can be significantly improved.