How can I optimize Docker caching in Travis CI?

How can I optimize Docker caching in Travis CI?

You can optimize Docker caching in Travis CI by using the cache feature to store your Docker layers.

What specific configurations should I add to my .travis.yml file?

In your .travis.yml, you can add a cache section like this:

cache:
  directories:
    - $HOME/.cache/docker

Are there any best practices for managing Docker images in CI?

Yes, some best practices include using multi-stage builds, minimizing the number of layers, and regularly cleaning up unused images.

How can I monitor the cache hit rate in Travis CI?

You can monitor the cache hit rate by checking the build logs in Travis CI, which will indicate whether the cache was used.