Reducing size of Docker images

Making efficient final images

Heavy docker

Most blogs and manuals will recommend you the simpler approaches to reducing the image of your docker image. We’ll go a little further today but let’s reiterate them anyway:

  • Use the reduced version of base images (alpine usually recommended), avoid SDKs for final images
  • Use multistage build, do not copy over temporary files or sources
  • Take care of the .dockerignore, ignore as much as possible

Having said that, it is possible that you’ll still end up with a very huge docker image, and it’s difficult to understand what the next step from here.

This is where this post comes in.

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