What strategies can I use to optimize Docker image layers and minimize rebuild times for frequently updated applications?

There are multiple approaches you can take to optimize Docker image layers and minimize rebuild times. Consider making use of some of the strategies below:

• First, you can start by leveraging layer caching by placing frequently changing components towards the end of your Dockerfile. This way, unchanged layers can be reused.
• Second, consider using multi-stage builds to separate the build and runtime environments, reducing the size of the final image.
• Last but not least, you can try to minimize the scope of changes in each Dockerfile instruction to avoid invalidating cached layers.

Since there is not a one-size-fits-all solution for this problem, you can make use of multiple strategies simultaneously to reduce build times and improve the overall performance of your Dockerized applications.